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CN-116114922-B - Manufacturing device and manufacturing method of heating structure, heating structure and non-combustion smoking set

CN116114922BCN 116114922 BCN116114922 BCN 116114922BCN-116114922-B

Abstract

The device for manufacturing the heating structure comprises an outer tube and a supporting body, a sealing cavity is formed between the outer tube and the supporting body, the outer tube comprises a tube wall, a first cover plate and a second cover plate which are connected to two opposite ends of the tube wall, the first cover plate and the second cover plate are connected to the outer wall of the supporting body, the device for manufacturing the heating structure comprises a forming die and high-temperature material injection equipment, a pouring cavity and a positioning part for fixing the supporting body are arranged in the forming die, the pouring cavity is provided with an annular opening which is arranged corresponding to the positioning part, a material injection port which is communicated with the pouring cavity is arranged on the forming die, the pouring cavity is used for pouring to form the tube wall and the first cover plate, the first cover plate is connected with the supporting body at the annular opening, and the high-temperature material injection equipment comprises a heating module for heating a heat melting material to a molten state and a material injection head which is in butt joint with the material injection port. The manufacturing device of the heating structure has good product consistency. The invention also relates to a manufacturing method of the heating structure, the heating structure and the non-combustion smoking set.

Inventors

  • CHEN JIATAI
  • ZHOU SHENGWEN
  • GUO JIFA
  • KONG ZHE
  • LIN YUNYAN

Assignees

  • 深圳市赛尔美电子科技有限公司

Dates

Publication Date
20260512
Application Date
20230105

Claims (19)

  1. 1. The device for manufacturing the heating structure comprises an outer tube and a supporting body at least partially arranged in the outer tube, a sealing cavity is formed between the outer tube and the supporting body, the outer tube comprises a tube wall, a first cover plate and a second cover plate, the first cover plate and the second cover plate are connected to the outer wall of the supporting body, and the device is characterized by comprising a forming die and high-temperature material injection equipment, wherein a pouring cavity and a positioning part for fixing the supporting body are arranged in the forming die, the pouring cavity is provided with an annular opening which corresponds to the positioning part, the forming die is provided with a material injection opening which is communicated with the pouring cavity, the pouring cavity is used for pouring to form the tube wall and the first cover plate, the first cover plate is connected with the supporting body at the annular opening, and the high-temperature material injection equipment comprises a heating module for heating a hot-melt material to a molten state and a material injection head which is in butt joint with the material injection opening.
  2. 2. The apparatus for manufacturing a heat generating structure according to claim 1, wherein the positioning portion comprises a positioning hole provided at an end portion of the molding die and a positioning groove provided inside the molding die, the positioning groove is provided opposite to the positioning hole, the annular opening is provided corresponding to the positioning hole, and when the positioning portion fixes the supporting body, one end of the supporting body is fixed in the positioning hole, and the other end of the supporting body is fixed in the positioning groove.
  3. 3. The apparatus for manufacturing a heat generating structure according to claim 2, wherein the molding die comprises an outer die and an inner die, the inner die is disposed in the outer die, the casting cavity is formed between an inner wall of the outer die and an outer wall of the inner die, the positioning hole penetrates through the outer die and the inner die, and the positioning groove is disposed on an inner wall of the inner die.
  4. 4. The device for manufacturing a heating structure according to claim 3, wherein the outer mold comprises a first cylinder and a first bottom plate, a containing cavity is formed in the first cylinder, an opening is formed in one end of the first cylinder, the inner mold is inserted into the containing cavity, the other end of the first cylinder is connected with the first bottom plate, the inner mold comprises a second cylinder, a second bottom plate and a sealing plate, one end of the second cylinder is connected with the sealing plate, the other end of the second cylinder is connected with the second bottom plate, the positioning hole penetrates through the first bottom plate and the second bottom plate, and the positioning groove is formed in the sealing plate.
  5. 5. The device for manufacturing a heating structure according to claim 4, wherein the outer mold further comprises two avoidance pipes, the two avoidance pipes are connected to the first cylinder, one ends of the two avoidance pipes are abutted against the outer wall of the second cylinder, the other ends of the two avoidance pipes are arranged outside the first cylinder, and the two avoidance pipes are used for forming through holes for extending out of electrode pins on the outer pipe formed by casting.
  6. 6. The apparatus for manufacturing a heat generating structure according to claim 4, wherein the sealing plate is provided with an annular groove in a region outside the second cylinder, the annular groove is provided around the second cylinder, and an end of the first cylinder away from the first bottom plate is provided in the annular groove.
  7. 7. The apparatus for manufacturing a heat generating structure according to claim 1, wherein the forming mold is further provided with an exhaust hole, the exhaust hole is communicated with the casting cavity, and the exhaust hole is used for exhausting when the hot-melting material is poured into the casting cavity.
  8. 8. The apparatus for manufacturing a heat generating structure according to any one of claims 1 to 7, wherein the high temperature injection device further comprises a feeding module, the heating module is connected to the feeding module, the feeding module comprises an inner shell and an outer shell, the inner shell is disposed in the outer shell, a hot melt channel is formed between an outer wall of the inner shell and an inner wall of the outer shell, the injection head is connected to the outer shell and is communicated with the hot melt channel, and the hot melt channel is used for accommodating the hot melt material.
  9. 9. The apparatus for manufacturing a heat generating structure according to claim 8, wherein the high-temperature injection device further comprises a regulating valve connected to the injection head, the regulating valve being configured to regulate a flow rate of the hot-melt material.
  10. 10. The apparatus for manufacturing a heat generating structure according to claim 8, wherein the high-temperature material injecting device further comprises a first feeding hopper and a second feeding hopper, the first feeding hopper and the second feeding hopper are arranged on two opposite sides of the housing, one ends of the first feeding hopper and the second feeding hopper are respectively provided with a feeding hole, and the other ends of the first feeding hopper and the second feeding hopper are communicated with the hot melting channel.
  11. 11. The apparatus for manufacturing a heat generating structure according to any one of claims 1 to 7, further comprising a carrying bracket including a carrier attached to the carrier, the molding die being fixed to the carrier, the high-temperature injection device being mounted on the bracket, the high-temperature injection device being located above the molding die.
  12. 12. The apparatus for manufacturing a heat generating structure according to claim 11, further comprising a lifting driving mechanism, wherein the lifting driving mechanism is connected to the support, a driving end of the lifting driving mechanism is connected to the high-temperature material injecting device, and the lifting driving mechanism is used for driving the high-temperature material injecting device to move up and down along the gravity direction.
  13. 13. The apparatus for manufacturing a heat generating structure according to any one of claims 1 to 7, wherein the pipe wall, the carrier, and the first cover plate connected between the pipe wall and the carrier constitute a half-molded structure, and the molding die is used in cooperation with the high-temperature injection device for integrally molding the half-molded structure; the manufacturing device of the heating structure further comprises a fixing mechanism and a high-temperature spray gun, wherein the fixing mechanism is provided with a fixing shaft for fixing the semi-forming structure, and the high-temperature spray gun is used for connecting the second cover plate with the pipe wall and the supporting body in a fusion mode to form the heating structure.
  14. 14. The apparatus for manufacturing a heat generating structure according to claim 13, wherein a heating passage is provided in the carrier body, and the fixing shaft is inserted into the heating passage; When the first rotary driving mechanism drives the fixed shaft and the semi-forming structure to synchronously rotate, the high-temperature spray gun heats the contact part of the pipe wall and the second cover plate and the contact part of the supporting body and the second cover plate; Or the manufacturing device of the heating structure comprises a second rotary driving mechanism for driving the high-temperature spray gun to do circular motion around the semi-forming structure, and when the second rotary driving mechanism drives the high-temperature spray gun to do circular motion, the high-temperature spray gun heats the contact part of the pipe wall and the second cover plate and the contact part of the supporting body and the second cover plate.
  15. 15. The apparatus for manufacturing a heat generating structure according to claim 13, wherein the outer wall of the supporting body is wound with a carbon fiber heat generating member, the carbon fiber heat generating member is located in the sealing cavity, the apparatus for manufacturing a heat generating structure comprises a vacuum pumping device for evacuating the sealing cavity, or the apparatus for manufacturing a heat generating structure comprises an inflating device for inflating the sealing cavity with a protective gas for preventing oxidation of the carbon fiber heat generating member.
  16. 16. A method for manufacturing a heat generating structure, the manufacturing method using the manufacturing apparatus for a heat generating structure according to claim 15, the manufacturing method comprising: fixing the supporting body in the forming die by utilizing the positioning part; Injecting the hot-melting material in a molten state into the pouring cavity through the injection head by utilizing the high-temperature injection equipment, and cooling to form the pipe wall and a first cover plate connected with the pipe wall and the supporting body, wherein the pipe wall, the supporting body and the first cover plate form a semi-forming structure; taking the semi-molding structure out of the molding die and fixing the semi-molding structure; Preparing the second cover plate, and covering the second cover plate on the pipe wall and the end part of the supporting body far away from the first cover plate; And the second cover plate is connected with the pipe wall and the supporting body by utilizing the high-temperature spray gun so as to form the heating structure.
  17. 17. The method of manufacturing a heat generating structure according to claim 16, wherein the carbon fiber heat generating member is wound around the carrier before the semi-molded structure is fixed, and the heat generating structure is formed, and then the sealing chamber is evacuated or a protective gas is filled into the sealing chamber.
  18. 18. A heat generating structure, characterized in that the heat generating structure is formed by the manufacturing method of any one of claims 16 to 17.
  19. 19. A non-combustible smoking article comprising a heat generating structure produced by the heat generating structure producing apparatus of any one of claims 1 to 15.

Description

Manufacturing device and manufacturing method of heating structure, heating structure and non-combustion smoking set Technical Field The invention relates to the technical field of heating structure manufacturing equipment, in particular to a manufacturing device and a manufacturing method of a heating structure, the heating structure and a non-combustion smoking set. Background The heating non-burning electronic cigarette is regarded as a revolutionary product in the tobacco industry, has the characteristics of no open flame, no ash, no second-hand smoke taste, harm reduction of 90 percent and the like, and also has the taste of 90 percent of traditional cigarettes. The existing heating non-combustion smoking set adopts Zhou Xiangjia heat types, heating wires for circumferential heating are generally prepared from stainless steel, iron-chromium-aluminum and other materials, and the problems that the heating wires are easy to oxidize, heat slowly, have large energy consumption, heat unevenly and the like are easy to occur. In order to solve the problems, the carbon fiber is used as a heating element of the smoking set, and has the advantages of high temperature rise, high electrothermal conversion efficiency and the like. However, carbon fibers are not weldable and oxidize when heated in air, and significantly lose weight when heated in air at 400 degrees, resulting in a substantial decrease in strength. When the oxidation weight loss reaches 2-5%, the mechanical property of the carbon fiber is reduced by 40-50%, and the diameter is reduced, so that the carbon fiber is used as a heating element for heating the non-combustion smoking set, and the service life of the carbon fiber is shorter. In order to prevent the carbon fibers from being oxidized, the carbon fibers need to be installed in a sealed quartz tube, thereby forming a heating structure. At present, a method for manufacturing a heating structure is to prepare a quartz tube, cut a hole with a proper size at the end part of the quartz tube, then fill carbon fiber into the quartz tube from the hole, and finally seal the hole. However, the manufacturing method has complicated steps, low production efficiency and low precision of each link in the production process, so that the consistency and yield of the product are low. Disclosure of Invention Therefore, the invention provides the manufacturing device of the heating structure, which has good product consistency and higher yield. The device for manufacturing the heating structure comprises a forming die and high-temperature material injection equipment, wherein a pouring cavity and a positioning part for fixing the supporting body are arranged in the forming die, the pouring cavity is provided with an annular opening which is correspondingly arranged with the positioning part, a material injection port which is communicated with the pouring cavity is arranged on the forming die, the pouring cavity is used for pouring to form a pipe wall and the first cover plate, the first cover plate is connected with the supporting body at the annular opening, and the high-temperature material injection equipment comprises a heating module for heating a hot-melting material to a molten state and a material injection head which is in butt joint with the material injection port. In the embodiment of the invention, the positioning part comprises a positioning hole arranged at the end part of the forming die and a positioning groove arranged in the forming die, wherein the positioning groove is opposite to the positioning hole, the annular opening is correspondingly arranged with the positioning hole, when the positioning part is used for fixing the supporting body, one end of the supporting body is fixed in the positioning hole, and the other end of the supporting body is fixed in the positioning groove. In an embodiment of the invention, the forming mold comprises an outer mold and an inner mold, wherein the inner mold is arranged in the outer mold, the pouring cavity is formed between the inner wall of the outer mold and the outer wall of the inner mold, the positioning hole penetrates through the outer mold and the inner mold, and the positioning groove is arranged on the inner wall of the inner mold. In the embodiment of the invention, the outer mold comprises a first cylinder body and a first bottom plate, a containing cavity is arranged in the first cylinder body, an opening for the inner mold to be inserted into the containing cavity is formed in one end of the first cylinder body, the other end of the first cylinder body is connected with the first bottom plate, the inner mold comprises a second cylinder body, a second bottom plate and a sealing plate, one end of the second cylinder body is connected with the sealing plate, the other end of the second cylinder body is connected with the second bottom plate, the positioning hole penetrates through the first bottom plate and the second bottom plate, and the posit