Method of manufacturing a heat generating body and manufacturing apparatus

Abstract

The application discloses a manufacturing method and a manufacturing device of a heating body, and the manufacturing device comprises a rack, a fixed shaping column and a telescopic push rod fixed to the rack, two bending rollers in sliding connection with the rack and a roller driving mechanism, the axes of the two bending rollers are parallel to the axis of the shaping column, the roller driving mechanism is used for driving the two bending rollers to slide in opposite directions around the shaping column in a circumferential direction, the telescopic direction of the telescopic push rod is perpendicular to the axis of the shaping column, and the two bending rollers are respectively located on the two sides of the line connecting the telescopic push rod and the shaping column. The two bending rollers are driven by the roller driving mechanism to slide in opposite directions around the shaping column in a circumferential direction, the metal mesh can be bent into a shape matched with the shaping column, so that the metal mesh forms a shape matched with the columnar oil guide body, the manufacturing device has a simple structure and a low cost, and the process difficulty and the manufacturing cost of the bending and shaping of the metal mesh are reduced.

Description

Technical Field

[0001] This invention relates to the field of atomizer technology, and in particular to a method and equipment for manufacturing a heating element. Background Technology

[0002] Electronic cigarettes, also known as virtual cigarettes, vaporizers, or aerosol generators, primarily work by heating e-liquid or e-cream stored inside the e-cigarette to produce an aerosol for the user to inhale. E-liquid typically contains nicotine salts, and the resulting aerosol contains nicotine but does not contain harmful substances such as tar or carbon monoxide, thus providing users with a healthy alternative to traditional cigarettes.

[0003] Existing e-cigarettes include cartridges and devices. The core component of a cartridge is the atomizer core, which typically includes a wicking body and a heating element. The wicking body transports e-liquid, while the heating element heats the e-liquid within the wicking body to produce an aerosol. The wicking body is usually made of porous wicking cotton or porous ceramic to absorb the e-liquid. The heating element is made of pure metal, which directly contacts the wicking cotton or porous ceramic wicking body, heating the absorbed e-liquid and atomizing it into vapor for inhalation.

[0004] As the core component of the atomizer coil, the heating element commonly found on the market is either a planar metal sheet or a cylindrical metal heating wire, as well as other heating elements derived from these two structures. Square atomizer coils typically use a planar heating element, while cylindrical atomizer coils mainly use a metal wire as the heating element. This is achieved by winding the metal wire into a spiral shape using a winding process. The metal wire has a diameter of 0.2-0.5mm, and then wires are soldered to both ends. Due to the relatively thin diameter of the metal wire, it is impossible to densely wind it into a spiral shape to control its resistance. The metal wire is typically wound 3-5 turns, resulting in a very small contact area between the metal wire and the cylindrical wicking body. This makes it easy to pull the wire out during assembly. Furthermore, the small contact area also affects the heating and atomization temperature, causing the area around the heating wire to overheat and resulting in a burnt smell. Due to outdated manufacturing processes and equipment, making the metal sheet into a shape that matches the cylindrical wicking body is technically difficult and costly. Therefore, in actual products, those skilled in the art typically use metal wire wound around the surface of a columnar oil guide to form a heating element. Summary of the Invention

[0005] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this invention is to provide a method and equipment for manufacturing a heating element, so as to solve the problem that the process of manufacturing a metal sheet into a shape that matches the columnar oil guide body is difficult and costly.

[0006] The objective of this invention is achieved through the following technical solution:

[0007] This invention provides a device for manufacturing a heating element, comprising:

[0008] frame;

[0009] A shaping column is fixed to the frame;

[0010] The machine includes a roller drive mechanism and two bending rollers, both of which are slidably connected to the frame. The axes of the bending rollers are parallel to the axis of the shaping column. The roller drive mechanism is used to drive the two bending rollers to slide around the circumference of the shaping column in opposite directions, and the bending rollers are able to rotate about their own axes.

[0011] A telescopic push rod is fixed to the frame and corresponds to the shaping column. The telescopic direction of the push rod is perpendicular to the axis of the shaping column. Two bending rollers are located on both sides of the line connecting the telescopic push rod and the shaping column, and the sliding trajectories of the two bending rollers are symmetrical about the line connecting the telescopic push rod and the shaping column.

[0012] Furthermore, the free end of the telescopic push rod is provided with a bending platform, and the surface of the bending platform facing the shaping column is an arc-shaped structure, the curvature of the arc-shaped structure being less than or equal to the curvature of the surface of the shaping column.

[0013] Furthermore, the manufacturing equipment also includes two wire fixing devices, both of which are fixed to the frame and located on both sides of the line connecting the telescopic push rod and the shaping column, and are used to fix the wires.

[0014] Furthermore, the manufacturing equipment also includes two welding devices, both of which are slidably connected to the frame and located on both sides of the line connecting the telescopic push rod and the shaping column. The sliding direction of the welding devices is parallel to the axis of the shaping column. The welding devices are used to weld the wires to the heating element.

[0015] Furthermore, there are two telescopic push rods, which are located on opposite sides of the shaping column, and the axes of the two telescopic push rods are the same.

[0016] This application also provides a method for manufacturing a heating element, the method being used in the heating element manufacturing equipment described above, the method comprising:

[0017] A metal mesh and a plastic bending plate are provided. The metal mesh and the plastic bending plate are placed together on a bending roller and a telescopic push rod. The metal mesh is located on the side of the plastic bending plate facing the shaping column.

[0018] The telescopic push rod is controlled to drive the metal mesh and the plastic bending plate to move closer to the shaping column, so that the metal mesh comes into contact with the shaping column;

[0019] The control roller drive mechanism drives the two bending rollers to slide around the circumference of the shaping column in opposite directions, so that the metal mesh and the plastic bending plate are bent and shaped together.

[0020] Furthermore, the manufacturing equipment also includes two wire fixing devices and two welding devices. The two wire fixing devices are respectively located on both sides of the line connecting the telescopic push rod and the shaping column, and the two welding devices are respectively located on both sides of the line connecting the telescopic push rod and the shaping column. The manufacturing method includes:

[0021] Two wires are provided, and the two wires are respectively fixed to two wire fixing devices;

[0022] The welding device is controlled to weld the wire to the bent and shaped metal mesh.

[0023] Furthermore, the heating element is a circular tube structure. The manufacturing equipment also includes two wire fixing devices, two welding devices, and two telescopic push rods. The two wire fixing devices are respectively located on both sides of the line connecting the telescopic push rod and the shaping column. The two welding devices are respectively located on both sides of the line connecting the telescopic push rod and the shaping column. The two telescopic push rods are respectively located on opposite sides of the shaping column, and the axes of the two telescopic push rods are the same. The manufacturing method includes:

[0024] Two metal mesh sheets and two plastic bending plates are provided. First, one of the metal mesh sheets and the plastic bending plate are bent together into a semi-circular tube structure. Then, the other metal mesh sheet and the plastic bending plate are bent together into another semi-circular tube structure.

[0025] The two semi-circular tube structures are respectively placed on the two opposite telescopic push rods to form a circular tube structure;

[0026] Two wires are provided, and the two wires are respectively fixed to two wire fixing devices, located at the joint of the two semi-circular tube structures;

[0027] The welding device is controlled to weld the wire to the joint of the two semi-circular tube structures.

[0028] Furthermore, after welding the wire to the metal mesh, the manufacturing method further includes:

[0029] A porous ceramic slurry is provided. First, the heating element is placed in a mold, and then the porous ceramic slurry is poured into the mold. The heating element and the porous ceramic slurry are combined by hot pressing molding process, and after cooling and solidification, a green body is formed.

[0030] The green body is sintered using a debinding and high-temperature sintering process.

[0031] Furthermore, before bending and shaping the metal mesh, the manufacturing method further includes:

[0032] A metal sheet is provided, and the metal sheet is processed into a metal mesh using a chemical etching process or a laser engraving process;

[0033] The metal mesh was subjected to a salt spray test.

[0034] After passing the test, the metal mesh is ultrasonically cleaned multiple times using at least one of the following: cleaning agent, alcohol, and deionized water.

[0035] The beneficial effects of this invention are as follows: By driving two bending rollers in opposite directions to slide around the circumference of the shaping column through a roller drive mechanism, the metal mesh can be bent into a shape that matches the shaping column, thus forming a shape that matches the columnar oil guide. This solves the problem that the sheet-like heating element cannot match the shape of the columnar oil guide, and avoids the problem of excessively high local temperature of the oil guide caused by using metal heating wire to wrap the surface of the columnar oil guide, resulting in a burnt smell. Moreover, the structure of this manufacturing equipment is simple, the manufacturing cost is low, and the process difficulty and manufacturing cost of bending and shaping the metal mesh are reduced. Attached Figure Description

[0036] Figure 1 This is a three-dimensional structural diagram of the heating element in Embodiment 1 of the present invention;

[0037] Figure 2 This is a schematic diagram of the heating element from another perspective in Embodiment 1 of the present invention;

[0038] Figure 3 This is a three-dimensional structural diagram of the heating element manufacturing device in Embodiment 1 of the present invention;

[0039] Figure 4 This is a frontal three-dimensional structural diagram of the heating element manufacturing device in Embodiment 1 of the present invention;

[0040] Figure 5 This is a flowchart illustrating the method for manufacturing the heating element in Embodiment 1 of the present invention;

[0041] Figures 6a-6d This is a schematic diagram of the manufacturing method of the heating element in Embodiment 1 of the present invention;

[0042] Figure 7 This is a three-dimensional structural diagram of the heating element in Embodiment 2 of the present invention;

[0043] Figure 8 This is a schematic diagram of the heating element from another perspective in Embodiment 2 of the present invention;

[0044] Figure 9 This is a three-dimensional structural diagram of the heating element manufacturing equipment in Embodiment 2 of the present invention;

[0045] Figure 10 This is a frontal three-dimensional structural diagram of the heating element manufacturing device in Embodiment 2 of the present invention;

[0046] Figure 11 This is a flowchart illustrating the method for manufacturing the heating element in Embodiment 2 of the present invention;

[0047] Figures 12a-12d This is a schematic diagram of the manufacturing method of the heating element in Embodiment 2 of the present invention.

[0048] In the figure: heating element 1, metal mesh 3, plastic bending plate 4, frame 10, first slide 101, second slide 102, wire hole 103, back plate 11, first side plate 12, second side plate 13, shaping column 20, bending roller 30, telescopic push rod 40, bending platform 41, drive unit 42, wire fixing device 50, welding device 60, wire limiting device 70. Detailed Implementation

[0049] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the following detailed description, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation methods, structures, features, and effects of the heating element manufacturing method and manufacturing equipment proposed according to the present invention:

[0050] [Example 1]

[0051] Figure 1 This is a three-dimensional structural diagram of the heating element in Embodiment 1 of the present invention. Figure 2 This is a schematic diagram of the heating element from another perspective in Embodiment 1 of the present invention. Figure 3 This is a three-dimensional structural diagram of the heating element manufacturing device in Embodiment 1 of the present invention. Figure 4 This is a frontal three-dimensional structural diagram of the heating element manufacturing device in Embodiment 1 of the present invention.

[0052] like Figures 1 to 4 As shown, the apparatus for manufacturing a heating element provided in Embodiment 1 of the present invention includes:

[0053] The frame 10 includes a back plate 11, a first side plate 12, and a second side plate 13. The first side plate 12 and the second side plate 13 are arranged opposite to each other and fixed to the left and right ends of the back plate 11, so that the cross-section of the frame 10 is "U". Of course, in other embodiments, the frame 10 may adopt other structures to facilitate the installation of other devices, and is not limited thereto.

[0054] The shaping column 20 is fixed to the frame 10. The shape of the shaping column 20 matches that of the columnar oil guide body, and is used to supply oil to the metal mesh 3 ( Figure 6a The shaping column 20 serves to form a shape that matches the columnar oil guide body. Specifically, the shaping column 20 is fixed to the back plate 11 of the frame 10, and the axis of the shaping column 20 is perpendicular to the back plate 11. Preferably, the shaping column 20 and the back plate 11 of the frame 10 are detachably connected, which facilitates the replacement of different models of shaping columns 20 to produce heating elements 1 that match the shapes of different columnar oil guide bodies. The shaping column 20 can be a metal rod, a plastic rod, or a silicone rod.

[0055] A roller drive mechanism (not shown) and two bending rollers 30 are included. Both bending rollers 30 are slidably connected to the frame 10, and their axes are parallel to the axis of the shaping column 20. The roller drive mechanism is fixed to the frame 10 and drives the two bending rollers 30 to slide in opposite directions around the shaping column 20. While sliding around the shaping column 20, the bending rollers 30 can also rotate on their own axes, thus better bending the metal mesh 3 and preventing damage during bending. Specifically, the roller drive mechanism and the two bending rollers 30 are mounted on the back plate 11 of the frame 10, and the axes of the two bending rollers 30 are perpendicular to the back plate 11. The back plate 11 of the frame 10 is provided with a first groove 101 circumferentially arranged around the shaping column 20. Figure 4 and Figure 6b One end of the bending roller 30 is installed in the first slide groove 101, which is used to limit the sliding trajectory of the bending roller 30.

[0056] A telescopic push rod 40 is fixed to the frame 10 and corresponds to the shaping column 20. The telescopic direction of the push rod 40 is perpendicular to the axis of the shaping column 20. Two bending rollers 30 are located on both sides of the line connecting the telescopic push rod 40 and the shaping column 20, and the sliding trajectories of the two bending rollers 30 are symmetrical about the line connecting the telescopic push rod 40 and the shaping column 20, that is, the first sliding groove 101 is symmetrical about the line connecting the telescopic push rod 40 and the shaping column 20. Specifically, the telescopic push rod 40 is provided with a drive unit 42, which can be an air pump or an oil pump, to drive the telescopic push rod 40 to extend and retract. The drive unit 42 is fixed to the back plate 11 of the frame 10. The end of the telescopic push rod 40 away from the drive unit 42 can extend and retract toward the shaping column 20, thereby pressing the metal mesh 3 and the plastic bending plate 4 onto the surface of the shaping column 20 to prevent displacement during bending. The telescopic push rod 40 provides a pressure range of 0.1-0.5 MPa. If the pressure is too high, the plastic bending plate 4 will be deformed, resulting in the deformation of the metal mesh 3. If the pressure is too low, the metal mesh 3 will easily shift or move during bending, resulting in poor bending.

[0057] Furthermore, the free end of the telescopic push rod 40 (i.e. the end away from the drive unit 42) is provided with a bending platform 41. The surface of the bending platform 41 facing the shaping column 20 is an arc-shaped structure. The curvature of the arc-shaped structure is less than or equal to the curvature of the surface of the shaping column 20, so that the metal mesh 3 and the plastic bending plate 4 can fit tightly against the surface of the shaping column 20.

[0058] In other embodiments, there are two telescopic push rods 40, located on opposite sides of the shaping column 20, with the axes of the two telescopic push rods 40 being the same. By setting two telescopic push rods 40, the two bent metal mesh sheets 3 can be tightly fitted to the surface of the shaping column 20 to form a circular tube structure, facilitating subsequent welding work, thereby enabling the fabrication equipment to manufacture the heating element 1 with a circular tube structure.

[0059] In this embodiment, the manufacturing equipment further includes two wire fixing devices 50 and two welding devices 60. The two wire fixing devices 50 are fixed to the frame 10 and located on both sides of the line connecting the telescopic push rod 40 and the shaping column 20, respectively. The wire fixing devices 50 are used to fix the wires 2. The two welding devices 60 are slidably connected to the frame 10 and located on both sides of the line connecting the telescopic push rod 40 and the shaping column 20, respectively. The sliding direction of the welding devices 60 is parallel to the axis of the shaping column 20. The welding devices 60 are used to weld the wires 2 to the heating element 1. The welding devices 60 can be laser welding devices. Specifically, the two wire fixing devices 50 are fixed to the first side plate 12 and the second side plate 13 of the frame 10, respectively. One end of the wire fixing device 50 near the shaping column 20 has a positioning hole for cooperating with the wire 2. One end of the wire 2 is inserted into the positioning hole, thereby fixing the wire 2. Two welding devices 60 are fixed to the first side plate 12 and the second side plate 13 of the frame 10 respectively. The first side plate 12 and the second side plate 13 are provided with a second slide groove 102, and the welding head of the welding device 60 passes through the second slide groove 102.

[0060] Furthermore, the back plate 11 of the frame 10 is provided with wire holes 103, which are located on the left and right sides of the shaping column 20. The wire holes 103 are used for the wire 2 to pass through. The manufacturing equipment also includes two wire limiting devices 70, which are fixed to the first side plate 12 and the second side plate 13 of the frame 10, respectively. The end of the wire limiting device 70 near the shaping column 20 is provided with an arc-shaped part corresponding to the wire hole 103, wherein the arc-shaped part, the positioning hole, and the wire hole 103 are located on the same straight line. When the wire 2 passes through the wire hole 103, the wire limiting device 70 plays a certain limiting role for the wire 2, ensuring that the wire 2 can be inserted into the positioning hole on the wire fixing device 50.

[0061] Figure 5 This is a flowchart illustrating the method for manufacturing the heating element in Embodiment 1 of the present invention. Figures 6a-6d This is a schematic diagram of the manufacturing method of the heating element in Embodiment 1 of the present invention. Figures 5 to 6d As shown, this application also provides a method for manufacturing a heating element, which is used in the heating element manufacturing apparatus described above. The method includes:

[0062] Step S1: Provide a metal sheet and fabricate it into a metal mesh 3 using chemical etching or laser engraving. The holes on the metal mesh 3 are based on a pre-designed pattern. The metal sheet can be made of one or more of the following materials: stainless steel (e.g., 304 or 316 stainless steel), nickel alloy, nickel-chromium alloy, tungsten, molybdenum, platinum, palladium, etc., or other metal materials. The thickness of the metal sheet ranges from 0.05 to 0.5 mm.

[0063] The metal mesh 3 is subjected to a salt spray test. For example, after 24 hours of salt spray testing, the metal mesh 3 is considered to have passed the test if no rust appears. After passing the test, the metal mesh 3 is ultrasonically cleaned multiple times using at least one of the following: a cleaning agent, alcohol, and deionized water, to remove impurities, oil stains, dust, etc.

[0064] Step S2: Provide two metal mesh sheets 3 and two plastic bending plates 4. First, bend one of the metal mesh sheets 3 and the plastic bending plate 4 together into a semi-circular tube structure. Then, bend the other metal mesh sheet 3 and the plastic bending plate 4 together into another semi-circular tube structure. The plastic bending plate 4 is a soft rubber or silicone sheet with a thickness ranging from 5-20mm. If the thickness is too thin, it is prone to deformation and cannot withstand the roller pressure, making it impossible to maintain its shape. If the thickness is too large, the bending force will be uneven, leading to mesh deformation. The Shore hardness of the plastic bending plate 4 is 65-83°. If the hardness is too low, it cannot maintain its shape, and the metal mesh will easily stick to it. If the hardness is too high, its plasticity is poor, and it is easily damaged. The plastic bending plate 4 can prevent the metal mesh sheet 3 from recovering its deformation before welding the wire 2, thus providing better shaping for the metal mesh sheet 3.

[0065] Specifically, such as Figures 6a-6c As shown, one of the metal mesh sheets 3 and the plastic bending plate 4 are placed together on the bending platform 41 of the bending roller 30 and the telescopic push rod 40, with the metal mesh sheet 3 located on the side of the plastic bending plate 4 facing the shaping column 20; then, the telescopic push rod 40 is controlled to drive the metal mesh sheet 3 and the plastic bending plate 4 to move closer to the shaping column 20, so that the metal mesh sheet 3 contacts the shaping column 20; finally, the roller drive mechanism is controlled to drive the two bending rollers 30 to slide around the shaping column 20 in opposite directions, so that the metal mesh sheet 3 and the plastic bending plate 4 are bent and shaped together, and held for at least 30 seconds, so that the metal mesh sheet 3 and the plastic bending plate 4 can be shaped better. Similarly, another metal mesh 3 and a plastic bending plate 4 are placed together on the bending platform 41 of the bending roller 30 and the telescopic push rod 40, with the metal mesh 3 located on the side of the plastic bending plate 4 facing the shaping column 20. Then, the telescopic push rod 40 is controlled to drive the metal mesh 3 and the plastic bending plate 4 to move closer to the shaping column 20, so that the metal mesh 3 contacts the shaping column 20. Finally, the roller drive mechanism is controlled to drive the two bending rollers 30 to slide around the shaping column 20 in opposite directions, so that the metal mesh 3 and the plastic bending plate 4 are bent and shaped together, and held for at least 30 seconds, so that the metal mesh 3 and the plastic bending plate 4 can be shaped better.

[0066] Step S3: Provide two wires 2, fix the two wires 2 to two wire fixing devices 50 respectively, and position them at the joint of the two semi-circular tube structures. Then control the welding device 60 to weld the wires 2 to the bent and shaped metal mesh 3. Specifically, place the two semi-circular tube structures on two oppositely arranged telescopic push rods 40 to form a circular tube structure, and control the welding device 60 to weld the wires 2 to the joint of the two semi-circular tube structures. Wherein, as... Figure 6b As shown, after the first metal mesh 3 and the plastic bending plate 4 are bent and shaped together, the metal mesh 3 and the plastic bending plate 4 are placed between another telescopic push rod 40 and the shaping column 20. The telescopic push rod 40 provides pressure to bond the first metal mesh 3 to the shaping column 20. Then, after the second metal mesh 3 is bent and shaped, it directly forms a circular tube structure with the first semi-circular tube structure metal mesh 3. Figure 6d As shown, after the two metal mesh sheets 3 together form a circular tube structure, the wire 2 passes through the wire hole 103 on the back plate 11 and extends into the positioning hole on the wire fixing device 50. Then, the welding device 60 controls the welding device 60 to weld the wire 2 to the bent and shaped metal mesh sheet 3. The wire 2 is welded to the joint of the two semi-circular tube structures, so that the two semi-circular tube metal mesh sheets 3 and the two wires 2 can be welded together in one welding process, reducing the number of welding steps. After the metal mesh sheet 3 and the wire 2 are welded together, the plastic bending plate 4 is restored to a flat plate shape, and the welded metal mesh sheet 3 and wire 2 are taken out. Of course, in other embodiments, the two semi-circular tube metal mesh sheets 3 can be welded together first, and then the wire 2 can be welded to the circular tube metal mesh sheet 3.

[0067] In this embodiment, as Figure 1 and Figure 2 As shown, the finished heating element 1 is a circular tube structure. By bending two metal mesh sheets 3 into a semi-circular tube structure and then welding them together to form a circular tube structure, the process difficulty of making the circular tube heating element 1 can be reduced and the manufacturing cost can be lowered.

[0068] Step S4: Provide porous ceramic slurry. First, place the heating element 1 in the mold, then pour the porous ceramic slurry into the mold. Combine the heating element 1 and the porous ceramic slurry through a hot-press casting process. After cooling and solidification, a green body is formed. The green body is then sintered using a high-temperature sintering process to form the finished atomizing core. By forming an integrated structure from the heating element 1 and the porous ceramic slurry through a high-temperature sintering process, the bonding between the heating element 1 and the porous ceramic is stronger, preventing detachment during assembly. Furthermore, the heating element 1 and the porous ceramic are in closer contact, improving the atomized flavor.

[0069] The porous ceramic slurry comprises porous ceramic aggregate, pore-forming agent, sintering aid, organic binder, and activator. The porous ceramic aggregate includes at least one of silica, alumina powder, quartz powder, diatomaceous earth, maifanite, perlite powder, kaolin, silicate, and zirconium oxide. The pore-forming agent includes at least one of PMMA (plexiglass), corn starch, potato starch, wheat starch, wood flour, and carbon powder. The sintering aid includes glass powder or low-melting-point oxides. Specifically, the porous ceramic aggregate, pore-forming agent, and sintering aid are first mixed uniformly using a ball milling process to form a mixed powder. Then, the mixed powder, binder, and activator are mixed to form the porous ceramic slurry.

[0070] Furthermore, after the atomizing core is formed, it undergoes ultrasonic cleaning and drying before being installed into the designed aerosol atomizing device. Specifically, the cylindrical atomizing core is first wrapped with one or more layers of absorbent cotton, then placed inside a designed steel ring, ensuring a tight seal between the atomizing core and the airway steel ring. The airway steel ring has a hollow cylindrical structure, with its lower section large enough to accommodate the atomizing core, and its upper section designed with a tapered shape. An oil inlet is located at the corresponding atomizing core location, with the inlet area matching the cross-sectional area of ​​the atomizing core. The airway steel ring is sealed with silicone sealant and inserted into an oil reservoir. The atomizing liquid enters the atomizing core through the inlet for transmission, thus forming the atomizer.

[0071] [Example 2]

[0072] Figure 7 This is a three-dimensional structural diagram of the heating element in Embodiment 2 of the present invention. Figure 8 This is a schematic diagram of the heating element from another perspective in Embodiment 2 of the present invention. Figure 9 This is a three-dimensional structural diagram of the heating element manufacturing device in Embodiment 2 of the present invention. Figure 10 This is a frontal three-dimensional structural schematic diagram of the heating element manufacturing device in Embodiment 2 of the present invention. Figures 7 to 10 As shown, the method and equipment for manufacturing the heating element provided in Embodiment 2 of the present invention are the same as those in Embodiment 1. Figures 3 to 5 The manufacturing method and equipment of the heating element in the embodiment are basically the same. The difference is that, in this embodiment, since the cross-section of the heating element 1 is an arc-shaped structure, only one piece of metal mesh 3 needs to be bent. Therefore, the number of telescopic push rods 40 is one.

[0073] Furthermore, the frame 10 includes a back plate 11, a first side plate 12, and a second side plate 13. The first side plate 12 and the second side plate 13 are arranged opposite to each other and fixed to the upper and lower ends of the back plate 11. The telescopic push rod 40 is fixed to the lower second side plate 13. Two wire fixing devices 50, two welding devices 60, and two wire limiting devices 70 are all provided on the upper first side plate 12, thereby facilitating the welding of two wires 2 to the two ends of a metal mesh 3.

[0074] Figure 11 This is a flowchart illustrating the method for manufacturing the heating element in Embodiment 2 of the present invention. Figures 12a-12d This is a schematic diagram of the manufacturing method of the heating element in Embodiment 2 of the present invention. Figures 11 to 12d As shown, this application also provides a method for manufacturing a heating element, which is used in the heating element manufacturing apparatus described above. The method includes:

[0075] Step S1: Provide a metal sheet and fabricate it into a metal mesh 3 using chemical etching or laser engraving. The holes on the metal mesh 3 are based on a pre-designed pattern. The metal sheet can be made of one or more of the following materials: stainless steel (e.g., 304 or 316 stainless steel), nickel alloy, nickel-chromium alloy, tungsten, molybdenum, platinum, palladium, etc., or other metal materials. The thickness of the metal sheet ranges from 0.05 to 0.5 mm.

[0076] The metal mesh 3 is subjected to a salt spray test. For example, after 24 hours of salt spray testing, the metal mesh 3 is considered to have passed the test if no rust appears. After passing the test, the metal mesh 3 is ultrasonically cleaned multiple times using at least one of the following: a cleaning agent, alcohol, and deionized water, to remove impurities, oil stains, dust, etc.

[0077] Step S2: Provide a metal mesh sheet 3 and a plastic bending plate 4. Bend and shape the metal mesh sheet 3 and the plastic bending plate 4 together. The cross-section of the shaped metal mesh sheet 3 (the cross-section perpendicular to the axis of the shaping column 20) is an arc-shaped structure. In this embodiment, since the cross-section of the shaped metal mesh sheet 3 is an arc-shaped structure, the number of metal mesh sheet 3 and plastic bending plate 4 is only one. The plastic bending plate 4 is a soft rubber or silicone plate with a thickness ranging from 5-20mm. If the thickness is too small, it is easily deformed and cannot withstand the pressure of the rollers, making shaping impossible. If the thickness is too large, the bending force is uneven, leading to mesh deformation. The Shore hardness of the plastic bending plate 4 is 65-83°. If the hardness is too low, it cannot be shaped, and the metal mesh easily sticks to it. If the hardness is too high, the plasticity is poor, and it is easily damaged. The plastic bending plate 4 can prevent the metal mesh sheet 3 from recovering its deformation before welding the wire 2, thus providing better shaping for the metal mesh sheet 3.

[0078] Specifically, such as Figures 12a-12c As shown, the metal mesh 3 and the plastic bending plate 4 are placed together on the bending roller 30 and the telescopic push rod 40, with the metal mesh 3 located on the side of the plastic bending plate 4 facing the shaping column 20. Then, the telescopic push rod 40 is controlled to drive the metal mesh 3 and the plastic bending plate 4 to move closer to the shaping column 20, so that the metal mesh 3 contacts the shaping column 20. Finally, the roller drive mechanism is controlled to drive the two bending rollers 30 to slide around the shaping column 20 in opposite directions, so that the metal mesh 3 and the plastic bending plate 4 are bent and shaped together, and held for at least 30 seconds, so that the metal mesh 3 and the plastic bending plate 4 can be shaped better.

[0079] Step S3: Provide two wires 2, fix the two wires 2 to the two wire fixing devices 50 respectively, and then control the welding device 60 to weld the wires 2 to the bent and shaped metal mesh 3. Specifically, as shown... Figure 12d As shown, after the metal mesh 3 is bent and shaped, the wire 2 passes through the wire hole 103 on the back plate 11 and extends into the positioning hole on the wire fixing device 50. Then, the welding device 60 controls the welding device to weld the wire 2 to the bent and shaped metal mesh 3, and the wire 2 is welded to both ends of the metal mesh 3. After the metal mesh 3 and the wire 2 are welded, the plastic bending plate 4 is restored to a flat plate shape, and the welded metal mesh 3 and wire 2 are taken out.

[0080] In this embodiment, as Figure 1 and Figure 2 As shown, the completed heating element 1 is a tubular structure with a circular arc cross-section. By bending a metal mesh 3 into a tubular structure and then welding it to the wire 2, the manufacturing difficulty of the circular tubular heating element 1 can be reduced, thus lowering the manufacturing cost. However, since the heating element 1 is formed by bending a metal mesh 3, there is a gap between the two ends of the metal mesh 3, which reduces the contact area with the columnar oil guide, resulting in a poorer heating effect compared to Example 1.

[0081] Step S4: Provide porous ceramic slurry. First, place the heating element 1 in the mold, then pour the porous ceramic slurry into the mold. Combine the heating element 1 and the porous ceramic slurry through a hot-press casting process. After cooling and solidification, a green body is formed. The green body is then sintered using a high-temperature sintering process to form the finished atomizing core. By forming an integrated structure from the heating element 1 and the porous ceramic slurry through a high-temperature sintering process, the bonding between the heating element 1 and the porous ceramic is stronger, preventing detachment during assembly. Furthermore, the heating element 1 and the porous ceramic are in closer contact, improving the atomized flavor.

[0082] The porous ceramic slurry comprises porous ceramic aggregate, pore-forming agent, sintering aid, organic binder, and activator. The porous ceramic aggregate includes at least one of silica, alumina powder, quartz powder, diatomaceous earth, maifanite, perlite powder, kaolin, silicate, and zirconium oxide. The pore-forming agent includes at least one of PMMA (plexiglass), corn starch, potato starch, wheat starch, wood flour, and carbon powder. The sintering aid includes glass powder or low-melting-point oxides. Specifically, the porous ceramic aggregate, pore-forming agent, and sintering aid are first mixed uniformly using a ball milling process to form a mixed powder. Then, the mixed powder, binder, and activator are mixed to form the porous ceramic slurry.

[0083] Furthermore, after the atomizing core is formed, it undergoes ultrasonic cleaning and drying before being installed into the designed aerosol atomizing device. Specifically, the cylindrical atomizing core is first wrapped with one or more layers of absorbent cotton, then placed inside a designed steel ring, ensuring a tight seal between the atomizing core and the airway steel ring. The airway steel ring has a hollow cylindrical structure, with its lower section large enough to accommodate the atomizing core, and its upper section designed with a tapered shape. An oil inlet is located at the corresponding atomizing core location, with the inlet area matching the cross-sectional area of ​​the atomizing core. The airway steel ring is sealed with silicone sealant and inserted into an oil reservoir. The atomizing liquid enters the atomizing core through the inlet for transmission, thus forming the atomizer.

[0084] Those skilled in the art should understand that the remaining structures and working principles of this embodiment are the same as those of Embodiment 1, and will not be repeated here.

[0085] In this document, the directional terms such as up, down, left, right, front, and back are defined according to the position of the structures in the accompanying drawings and the relative positions of the structures, and are only used for clarity and convenience in expressing the technical solution. It should be understood that the use of these directional terms should not limit the scope of protection claimed in this application. It should also be understood that the terms "first" and "second," etc., used herein are only used for distinction in name and are not used to limit the number or order.

[0086] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content without departing from the scope of the technical solution of the present invention, which are equivalent embodiments with equivalent changes. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the technical solution of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. A device for manufacturing a heating element, used to manufacture the heating element of an atomizer, characterized in that, include: Rack (10); A shaping column (20) is fixed to the frame (10), and the back plate (11) of the shaping column (20) and the frame (10) are detachably connected; The roller drive mechanism and two bending rollers (30) are slidably connected to the frame (10). The axis of the bending roller (30) is parallel to the axis of the shaping column (20). The roller drive mechanism is used to drive the two bending rollers (30) to slide around the shaping column (20) in opposite directions. The bending rollers (30) can rotate on their own axis. Telescopic push rod (40), the telescopic push rod (40) is fixed to the frame (10) and corresponds to the shaping column (20), the telescopic push rod (40) telescopic direction is perpendicular to the axis of the shaping column (20), the two bending rollers (30) are respectively located on both sides of the line connecting the telescopic push rod (40) and the shaping column (20), and the sliding trajectory of the two bending rollers (30) is symmetrical about the line connecting the telescopic push rod (40) and the shaping column (20); The manufacturing equipment also includes two wire fixing devices (50), both of which are fixed to the frame (10) and located on both sides of the line connecting the telescopic push rod (40) and the shaping column (20). The wire fixing devices (50) are used to fix the wires (2). The manufacturing equipment also includes two welding devices (60), both of which are slidably connected to the frame (10) and located on both sides of the line connecting the telescopic push rod (40) and the shaping column (20). The sliding direction of the welding device (60) is parallel to the axis of the shaping column (20).

2. The heating element manufacturing equipment according to claim 1, characterized in that, The free end of the telescopic push rod (40) is provided with a bending platform (41). The surface of the bending platform (41) facing the shaping column (20) is an arc-shaped structure, and the curvature of the arc-shaped structure is less than or equal to the curvature of the surface of the shaping column (20).

3. The apparatus for manufacturing a heating element according to claim 1, characterized in that, There are two telescopic push rods (40), which are located on opposite sides of the shaping column (20) and have the same axis.

4. A method for manufacturing a heating element, characterized in that, The manufacturing method is used in the apparatus for manufacturing a heating element as described in any one of claims 1-2, and the manufacturing method includes: Provide a metal mesh (3) and a plastic bending plate (4), place the metal mesh (3) and the plastic bending plate (4) together on a bending roller (30) and a telescopic push rod (40), with the metal mesh (3) located on the side of the plastic bending plate (4) facing the shaping column (20); The telescopic push rod (40) is controlled to drive the metal mesh (3) and the plastic bending plate (4) to move closer to the shaping column (20) together, so that the metal mesh (3) contacts the shaping column (20); The control roller drive mechanism drives the two bending rollers (30) to slide around the shaping column (20) in opposite directions, so that the metal mesh (3) and the plastic bending plate (4) are bent and shaped together.

5. The method for manufacturing a heating element according to claim 4, characterized in that, The manufacturing method includes: Two wires (2) are provided, and the two wires (2) are respectively fixed to two wire fixing devices (50); The welding device (60) is controlled to weld the wire (2) to the bent and shaped metal mesh (3).

6. The method for manufacturing a heating element according to claim 4, characterized in that, The manufacturing equipment further includes two telescopic push rods (40), which are located on opposite sides of the shaping column (20), and the axes of the two telescopic push rods (40) are the same. The manufacturing method includes: Two metal mesh sheets (3) and two plastic bending plates (4) are provided. First, one of the metal mesh sheets (3) and the plastic bending plate (4) are bent together into a semi-circular tube structure. Then, the other metal mesh sheet (3) and the plastic bending plate (4) are bent together into another semi-circular tube structure. The two semi-circular tube structures are respectively placed on the two oppositely arranged telescopic push rods (40) to form a circular tube structure; Two wires (2) are provided, and the two wires (2) are respectively fixed on two wire fixing devices (50) and located at the joint of the two semi-circular tube structures; The welding device (60) is controlled to weld the wire (2) to the joint of the two semi-circular tube structures.

7. The method for manufacturing a heating element according to claim 4, characterized in that, Before bending and shaping the metal mesh (3), the manufacturing method further includes: Provide a metal sheet, and process the metal sheet into a metal mesh using a chemical etching process or a laser engraving process (3); The metal mesh (3) was subjected to a salt spray test; After passing the test, the metal mesh (3) is ultrasonically cleaned multiple times with a cleaning agent.

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