WO2025007736A1 - 一种用于制造气溶胶生成制品的挤出模具 - Google Patents
一种用于制造气溶胶生成制品的挤出模具 Download PDFInfo
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- WO2025007736A1 WO2025007736A1 PCT/CN2024/099850 CN2024099850W WO2025007736A1 WO 2025007736 A1 WO2025007736 A1 WO 2025007736A1 CN 2024099850 W CN2024099850 W CN 2024099850W WO 2025007736 A1 WO2025007736 A1 WO 2025007736A1
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- Prior art keywords
- extrusion
- molding
- die
- gap
- cavity
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Classifications
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/10—Chemical features of tobacco products or tobacco substitutes
- A24B15/12—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco
- A24B15/14—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco made of tobacco and a binding agent not derived from tobacco
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/10—Chemical features of tobacco products or tobacco substitutes
- A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
Definitions
- the present application relates to the field of mold technology, and in particular to an extrusion mold for manufacturing aerosol generating products.
- the forms of aerosol generating products include filamentary forms made by thick slurry method, rolling method and other methods, and also include one-piece forms made by extrusion method and other methods.
- the aerosol-generating products currently manufactured by the extrusion method have a relatively simple form. During the heating process, the aerosol cannot be released in time, and the aerosol extraction efficiency is low.
- the embodiments of the present application hope to provide an extrusion die for manufacturing aerosol generating products, so as to solve the technical problems in the related art that the aerosol generating products manufactured by the extrusion method have a relatively simple shape and low aerosol extraction efficiency.
- an extrusion die for manufacturing an aerosol-generating product comprising:
- a plurality of first molding columns are disposed on the first side wall, and the plurality of first molding columns are disposed along the first side wall.
- the circumferential arrangement of a mold cavity is spaced apart, and each of the first molding columns protrudes into the first mold cavity, so that the first extrusion gap is defined between two adjacent first molding columns.
- a width dimension of a side of the first molding column close to the first side wall is smaller than a width dimension of a side of the first molding column away from the first side wall.
- the first forming column includes a rod portion and a main body portion, the rod portion is located between the first side wall and the main body portion; and a width dimension of the rod portion is smaller than a width dimension of the main body portion.
- a distance between two adjacent main body parts gradually increases or remains unchanged.
- the width of the first forming column gradually decreases or remains unchanged from a side close to the first side wall to a side far from the first side wall.
- the first forming columns have the same shape; or, among all the first forming columns, at least some of the first forming columns have different shapes.
- the plurality of first molding pillars are evenly distributed or non-evenly distributed along the circumference of the first cavity.
- the extrusion gap includes a second extrusion gap and a third extrusion gap
- the extrusion mold includes a second molding column having a plurality of the second extrusion gaps
- the second molding column is arranged in the first cavity and extends along the extrusion direction of the extrusion mold, and the second molding column and the plurality of the first molding columns define the third extrusion gap connected to each of the first extrusion gaps
- the second extrusion gap passes through the second molding column along the extrusion direction, and each of the second extrusion gaps is connected to the third extrusion gap.
- one side of each of the second extrusion gaps is connected to the third extrusion gap, and the other side opposite to each of the second extrusion gaps is connected to each other at the center of the second molding column.
- the extrusion gap includes a fourth extrusion gap
- the second molding column is provided with a second cavity having a second side wall, a plurality of the second extrusion gaps surround the circumference of the second cavity and are respectively connected to the second cavity
- the extrusion die includes a third molding column arranged in the second cavity, the third molding column extends along the extrusion direction, and is limited by the second side wall.
- the fourth extrusion gap is determined.
- the extrusion gap includes a fifth extrusion gap
- the extrusion mold includes a fourth molding column arranged in the first cavity, the fourth molding column extends along the extrusion direction of the extrusion mold, and the fourth molding column and a plurality of the first molding columns define the fifth extrusion gap connected to each of the first extrusion gaps.
- the width dimensions of all the extrusion gaps are the same.
- the width dimension of at least one of the extrusion gaps is smaller than the width dimension of another of the extrusion gaps, wherein the width dimension of the extrusion gap with the smallest width dimension is not less than 70% of the width dimension of the extrusion gap with the largest width dimension.
- the width of each extrusion gap is 0.1 mm to 1.2 mm.
- the extrusion die includes a first die, and the first die is provided with the first cavity and a plurality of the first molding columns.
- one end of the first cavity has a discharge port, and a plurality of the first molding columns are disposed at the discharge port.
- the extrusion gap includes a second extrusion gap and a third extrusion gap
- the extrusion die includes a second die provided with a second molding column
- the second molding column has a plurality of the second extrusion gaps
- the second extrusion gaps penetrate the second molding column along the extension direction of the second molding column, and each of the second extrusion gaps penetrates the outer side wall of the second molding column;
- the second mold is connected to the first mold, the second molding column extends into the first mold cavity, and the second molding column and the plurality of first molding columns define the third extrusion gap respectively connected to the first extrusion gaps and the second extrusion gaps.
- the extrusion gap includes a fourth extrusion gap
- the second molding column is provided with a second cavity having a second sidewall, and a plurality of the second extrusion gaps surround the circumference of the second cavity;
- the extrusion die includes a third die provided with a third molding column, the third die is connected to the second die, the third molding column extends into the second cavity, and defines the fourth extrusion gap between the third molding column and the second side wall.
- the extrusion gap includes a fifth extrusion gap
- the extrusion mold includes a fourth mold provided with a fourth molding column
- the fourth mold is connected to the first mold
- the fourth molding column extends into the first cavity
- An embodiment of the present application provides an extrusion die for manufacturing an aerosol-generating product, wherein the extrusion die is provided with a first cavity and a plurality of first molding columns, wherein the plurality of first molding columns are provided on a first side wall of the first cavity and are arranged at intervals along the circumference of the first cavity. Each first molding column protrudes into the first cavity so that a first extrusion gap is defined between two adjacent first molding columns.
- part of the material passes through the first extrusion gap so that at least one protruding structure can be formed on the outer peripheral side of the extruded aerosol-generating medium, that is, the cross-sectional shape of the aerosol-generating medium is no longer a conventional circle or polygon, but is in a form in which a part of the outer contour protrudes outward.
- space for aerosol release can be increased on the peripheral side of the aerosol generating medium.
- the space on the opposite sides of the protrusion structure along the circumference of the aerosol generating medium is the increased space for aerosol release.
- the spacing space formed between two adjacent protrusion structures is the increased space for aerosol release.
- FIG1 is a schematic structural diagram of a first extrusion die according to an embodiment of the present application, and also shows an aerosol generating medium;
- FIG2 is an exploded view of the extrusion die shown in FIG1 ;
- FIG3 is a schematic structural diagram of the extrusion die shown in FIG1 from another perspective
- FIG4 is a structural schematic diagram of the extrusion die shown in FIG1 from another viewing angle
- FIG5 is a partial enlarged view of the extrusion die at A shown in FIG4;
- FIG6 is a schematic structural diagram of the first mold shown in FIG1 ;
- FIG7 is a schematic structural diagram of the second mold shown in FIG1 ;
- FIG8 is a schematic structural diagram of the third mold shown in FIG1 ;
- FIG9 is a cross-sectional view of the extrusion die shown in FIG1 ;
- FIG10 is a schematic structural diagram of the aerosol generating medium shown in FIG1 ;
- FIG11 is a schematic cross-sectional view of the aerosol generating medium shown in FIG10 ;
- FIG12 is a schematic structural diagram of a second extrusion die according to an embodiment of the present application.
- FIG13 is a schematic cross-sectional view of an aerosol generating medium extruded by the extrusion die shown in FIG12 ;
- FIG14 is a schematic structural diagram of a third extrusion die according to an embodiment of the present application.
- FIG15 is an exploded view of the extrusion die shown in FIG14;
- FIG16 is a schematic structural diagram of the extrusion die shown in FIG14 from another perspective
- FIG17 is a cross-sectional view of the extrusion die shown in FIG14;
- FIG18 is a schematic cross-sectional view of an aerosol generating medium extruded by the extrusion die shown in FIG14 ;
- FIG19 is a schematic structural diagram of a fourth extrusion die according to an embodiment of the present application.
- FIG20 is an exploded view of the extrusion die shown in FIG19;
- FIG21 is a schematic structural diagram of the extrusion die shown in FIG19 from another perspective
- Fig. 22 is a cross-sectional view of the extrusion die shown in Fig. 19;
- FIG. 23 is a schematic cross-sectional view of an aerosol generating medium extruded from the extrusion die shown in FIG. 19 .
- the embodiment of the present application provides an extrusion die 10 for manufacturing an aerosol generating product. Please refer to FIGS. 1 to 6 .
- the extrusion die 10 includes a first cavity 10 a and a plurality of first molding columns 10 d.
- the first cavity 10a has a first side wall 10b, and at least one extrusion gap 10c is provided in the first cavity 10a, and the extrusion gap 10c includes a first extrusion gap 10c1.
- a plurality of first molding columns 10d are arranged on the first side wall 10b and are arranged at intervals along the circumference of the first cavity 10a. Each first molding column 10d protrudes into the first cavity 10a, so that a first extrusion gap 10c1 is defined between two adjacent first molding columns 10d.
- the aerosol generating product is used in conjunction with an electronic atomization device having a heating component.
- the aerosol generating product mainly includes an aerosol generating medium 20.
- the heating component heats and atomizes the aerosol generating medium 20 to generate an aerosol for users to inhale or use for medicine, beauty, etc.
- the heating methods include central heating and circumferential heating.
- the central heating method refers to the heating component being inserted into the aerosol generating medium 20 to bake and heat the aerosol generating medium 20 from the inside to the outside.
- the circumferential heating method refers to the heating component being arranged at the periphery of the aerosol generating medium 20 to bake and heat the aerosol generating medium 20 from the outside to the inside.
- These heating methods may specifically be resistance heating, electromagnetic heating, infrared heating, microwave heating, laser heating, etc., which are not specifically limited here.
- the extrusion die 10 provided in the embodiment of the present application is used in conjunction with an extruder, such as a hydraulic plunger extruder, a twin-screw extruder, a single-screw extruder, etc., to manufacture all or part of an aerosol-generating product by extruding the material.
- an extruder such as a hydraulic plunger extruder, a twin-screw extruder, a single-screw extruder, etc.
- Extrusion molding refers to a processing method in which the material is added to the extruder, and the material is pushed forward by the screw through the action between the barrel and the screw of the extruder, and continuously passes through the extrusion die at the outlet of the extruder to form various cross-section products or semi-finished products.
- the material formed by extrusion molding is in the shape of strips.
- the embodiment of the present application is described by taking the extrusion die 10 used to manufacture the aerosol generating medium 20 in the aerosol generating product as an example.
- the aerosol generating product may have only the aerosol generating medium 20, or it may be a combination of the aerosol generating medium 20 and other structures.
- the aerosol generating product may also be provided with a functional segment at one end of the aerosol generating medium 20.
- the functional segment may have only a filtering function, or it may have filtering and cooling functions. In some embodiments, all or part of the functional segment may also be manufactured using the extrusion die 10 in the embodiment of the present application.
- the aerosol generating medium 20 can be made of an atomizing medium itself, such as a smoke flavoring medium.
- the aerosol generating medium 20 can also include a substrate and an atomizing medium disposed on the substrate.
- the substrate can be, for example, high-temperature resistant carbon fiber. In this way, by providing the substrate, the strength of the aerosol generating medium 20 can be improved, and the aerosol generating medium 20 can also withstand a certain degree of high temperature without generating odor.
- the aerosol generating medium 20 may include plant components, auxiliary components, smoke generating agent components, adhesive components, and the like.
- the plant component is one or more combinations of powders formed by crushing tobacco raw materials, tobacco leaf fragments, tobacco stems, tobacco dust, and aromatic plants.
- the plant component is the core source of the flavor of the product. Endogenous substances in plant ingredients, such as nicotine, enter the human blood through atomization, promoting the pituitary gland to produce dopamine, thereby obtaining physiological satisfaction.
- the auxiliary agent component can be one or more combinations of inorganic fillers, lubricants, and emulsifiers.
- the inorganic filler includes one or more combinations of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talc, and diatomaceous earth.
- the inorganic filler can provide a skeleton support for the plant component, and the inorganic filler also has micropores, which can increase the porosity of the wall material after the plant component is formed, thereby increasing the aerosol release rate.
- the lubricant includes one or more combinations of candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, and palmitic acid.
- the lubricant can increase the fluidity of the particles, reduce the friction between the particles, make the overall density of the particle distribution more uniform, and also reduce the pressure required for mold molding and reduce the wear of the mold.
- Emulsifiers include one or more combinations of polyglycerol fatty acid esters, Tween-80, and polyvinyl alcohol. Emulsifiers can slow down the loss of flavor substances during storage to a certain extent, increase the stability of flavor substances, and improve the sensory quality of products. Emulsifiers (also known as surfactants) can reduce the interfacial tension of water-soluble and water-insoluble components in the mixed system, and form a relatively strong film on the surface of the droplets or form a double electric layer on the surface of the droplets due to the charge given by the emulsifier, preventing the droplets from aggregating with each other and maintaining a uniform emulsion. Emulsifying and homogenizing two immiscible components can improve the consistency of product quality.
- the smoke-generating agent component may include, for example: a monohydric alcohol (such as menthol); a polyhydric alcohol (such as propylene glycol, triethylene glycol, 1,3-butylene glycol and glycerol); an ester of a polyhydric alcohol (such as monoacetin, diacetin or triacetin); a monocarboxylic acid; a polycarboxylic acid (such as lauric acid, myristic acid) or an aliphatic ester of a polycarboxylic acid (such as dimethyl dodecanedioate, dimethyl tetradecanedioate, erythritol, 1,3-butylene glycol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl laurate, Triactin, meso-ery
- a monohydric alcohol such as menthol
- a polyhydric alcohol such as propylene glycol, triethylene glycol, 1,
- the adhesive component is a natural plant extract, a non-ionized modified viscous polysaccharide, including
- the adhesive includes one or more combinations of tamarind polysaccharide, pullulan, seaweed polysaccharide, locust bean gum, guar gum, and xyloglucan.
- the adhesive closely contacts the interface of the product component materials by wetting, generating intermolecular attraction, thereby playing the role of bonding the powder and liquid of the component materials.
- the use of natural plant extraction and non-ionic adhesives can avoid the release of harmful substances such as methanol, formaldehyde, and acrolein caused by colloid modification, thereby improving the safety of the product.
- the aerosol generating medium 20 may be a particle combination, which is a reconstituted tobacco medium, for example, a reconstituted tobacco medium containing components such as a smoke generating agent and tobacco.
- the aerosol generating medium 20 of the particle combination is an integrated medium after being heated and inhaled or after stopping the heating, and is not prone to disintegration and falling, thus solving the problems of the thin sheet, filament or loose particle aerosol generating matrix in the prior art, such as the loosening of thin sheets, the falling off of filament components and particle components, and the difficulty in cleaning.
- the first side wall 10b of the first cavity 10a forms an outer contour of the first cavity 10a.
- the extrusion gap 10c is a passage through which the material passes during the extrusion process.
- first molding columns 10d which protrude from the first side wall 10b into the first cavity 10a, and a first extrusion gap 10c1 is defined between two adjacent first molding columns 10d, that is, there are at least one first extrusion gap 10c1.
- the number of the protruding structures 22 located on the outer peripheral side of the aerosol generating medium 20 is also relatively large. These protruding structures 22 are arranged around the outer peripheral side of the aerosol generating medium 20 to form a tooth shape.
- the first forming columns 10d have the same appearance, that is, all the first forming columns 10d have the same size and shape. In other embodiments, at least some of the first forming columns 10d among all the first forming columns 10d may have different appearances, that is, the appearances of all the first forming columns 10d may be different, that is, at least one of the size and shape of each first forming column 10d may be different from that of the other first forming columns 10d.
- first forming columns 10d may have different appearances, that is, Some of the first forming pillars 10 d have at least one of size and shape different from other first forming pillars 10 d , while other first forming pillars 10 d have the same size and shape.
- the plurality of first molding columns 10d may be uniformly distributed along the circumference of the first cavity 10a as shown in FIG3 , that is, the spacing between each two adjacent first molding columns 10d at the same position is the same, or in other words, all the first extrusion gaps 10c1 have the same size and shape.
- the plurality of first molding columns 10d may also be non-uniformly distributed along the circumference of the first cavity 10a, that is, the spacing between at least some of the two adjacent first molding columns 10d at the same position is different from the spacing between the other two adjacent first molding columns 10d at the same position, or in other words, at least one of the size and shape of at least some of the first extrusion gaps 10c1 is different from that of other first extrusion gaps 10c1.
- the aerosol generating medium extruded by an extrusion die is generally a cylindrical shape with a circular cross-section or a prism shape with a polygonal cross-section.
- the shape of the aerosol generating medium is relatively simple, so the shape of the final aerosol generating product is also relatively simple.
- the shape of the aerosol generating product has a great influence on the heating effect and the inhalation experience. During the heating process of the current aerosol generating product, the aerosol cannot be released in time, and the aerosol extraction efficiency is low.
- the extrusion die 10 of the embodiment of the present application is provided with a first cavity 10a and a plurality of first molding columns 10d, and the plurality of first molding columns 10d are arranged on the first side wall 10b of the first cavity 10a and are arranged at intervals along the circumference of the first cavity 10a.
- Each first molding column 10d protrudes into the first cavity 10a, so that a first extrusion gap 10c1 is defined between two adjacent first molding columns 10d.
- part of the material passes through the first extrusion gap 10c1, so that at least one protruding structure 22 can be formed on the outer peripheral side of the extruded aerosol generating medium 20, that is, the cross-sectional shape of the aerosol generating medium 20 is no longer a conventional circle or polygon, but is in a form in which a part of the outer contour protrudes outward.
- the protrusion structure 22 By providing the protrusion structure 22, the space for aerosol release can be increased on the outer peripheral side of the aerosol generating medium 20.
- the space on the opposite sides of the protrusion structure 22 along the circumference of the aerosol generating medium 20 is the increased space for aerosol release.
- the interval space formed between two adjacent protrusion structures 22 is the increased space for aerosol release.
- a width dimension D01 of a side of the first molding column 10 d close to the first sidewall 10 b may be smaller than a width dimension D02 of a side of the first molding column 10 d away from the first sidewall 10 b .
- the width dimension of the first molding column 10 d refers to the distance between two opposite surfaces of the first molding column 10 d along the circumferential direction of the extrusion die 10 .
- the width dimension D11 of the first extrusion gap 10c1 shown in FIG5 on the side close to the first side wall 10b is greater than the width dimension D12 of the first extrusion gap 10c1 on the side away from the first side wall 10b. Accordingly, referring to FIG11, the width dimension of the protrusion structure 22 on the aerosol generating medium 20 away from the center of the aerosol generating medium 20 is relatively wide, while the width dimension of the protrusion structure 22 on the aerosol generating medium 20 close to the center of the aerosol generating medium 20 is relatively narrow. This arrangement can further increase the space for aerosol release.
- the first forming column 10d may include a rod portion 10d1 and a main body portion 10d2, and the rod portion 10d1 is located between the first side wall 10b and the main body portion 10d2.
- the width dimension of the rod portion 10d1 is smaller than the width dimension of the main body portion 10d2.
- the projection of the first extrusion gap 10c1 is roughly "T"-shaped, and accordingly, the protruding structure 22 on the aerosol generating medium 20 forms a "T" shape composed of a lateral extension section 221 and a vertical extension section 222 as shown in Figures 10 and 11, thereby, a larger space can be formed on both sides of the "T"-shaped protruding structure 22 on the aerosol generating medium 20, and the aerosol release and flow are also smoother.
- the spacing between two adjacent main body portions 10d2 may also remain unchanged from the side close to the first side wall 10b to the side far from the first side wall 10b. That is, the region of the first extrusion gap 10c1 between two adjacent main body portions 10d2 is a structure of equal width, or in other words, the vertical extension section 222 on the protruding structure 22 of the aerosol generating medium 20 is a structure of equal width as shown in FIG. 11 , and such a vertical extension section 222 can reduce the probability of cracking or breaking at the junction of the protruding structure 22 and the medium main body 21.
- the spacing between two adjacent main body portions 10d2 may gradually increase from the side close to the first side wall 10b to the side away from the first side wall 10b, that is, the width dimension of the area of the first extrusion gap 10c1 located between the two adjacent main body portions 10d2 gradually increases from the side close to the first side wall 10b to the side away from the first side wall 10b, or in other words, the vertical extension section 222 on the protruding structure 22 of the aerosol generating medium 20 extends from the side close to the first side wall 10b to the side away from the first side wall 10b as shown in FIG. 12 .
- the width of the section 221 gradually increases from one end to the end away from the lateral extension section 221 , thereby making the width of the portion where the vertical extension section 222 is connected to the dielectric body 21 relatively large, thereby better preventing the protruding structure 22 and the dielectric body 21 from cracking or even breaking.
- the width of the first molding column 10d may also gradually increase from the side close to the first sidewall 10b to the side far from the first sidewall 10b, which is equivalent to the width of the first molding column 10d changing continuously.
- the width dimension of the first molding column 10d is not limited to the width dimension on the side close to the first side wall 10b being smaller than the width dimension on the side away from the first side wall 10b.
- the width dimension of the first molding column 10d may gradually decrease from the side close to the first side wall 10b to the side away from the first side wall 10b, which is equivalent to the width dimension of the portion where the protruding structure 22 and the medium body 21 are connected being relatively large.
- a plurality of protruding structures 22 may together form a wave shape.
- the width of the first molding column 10d may remain unchanged from the side close to the first side wall 10b to the side far from the first side wall 10b, that is, the first molding column 10d is a structure of equal width, for example, the first molding column 10d may be rectangular.
- the extrusion gap 10c may include a second extrusion gap 10c2 and a third extrusion gap 10c3, and the extrusion die 10 includes a second molding column 10e having a plurality of second extrusion gaps 10c2, the second molding column 10e is disposed in the first cavity 10a, and extends along the extrusion direction of the extrusion die 10, and the second molding column 10e and the plurality of first molding columns 10d define a third extrusion gap 10c3 connected to each first extrusion gap 10c1.
- the second extrusion gap 10c2 penetrates the second molding column 10e along the extrusion direction, and each second extrusion gap 10c2 is connected to the third extrusion gap 10c3.
- part of the material passes through the third extrusion gap 10c3 to form the first annular structure 211 shown in Figures 10, 11 and 18.
- the first annular structure 211 is a part of the medium body 21 of the aerosol generating medium 20.
- the outer surface of the first annular structure 211 facing the protruding structure 22 is equivalent to the outer side wall of the medium body 21.
- Part of the material passes through the second extrusion gap 10c2 to form the support ribs 212 located inside the medium body 21 as shown in Figures 10, 11 and 18, and the area between the support ribs 212 forms the airflow channel 20a located inside the medium body 21.
- the airflow channel 20a inside the medium 20 can increase the flow velocity of the airflow in the aerosol generating medium 20, thereby increasing the impact force of the airflow, allowing the aerosol to be evenly mixed, and further increasing the extraction efficiency and uniformity of the aerosol in the aerosol generating medium 20.
- the supporting ribs 212 can play a good supporting role inside the aerosol generating medium 20, so as to increase the cross-sectional size of the airflow channel 20a as much as possible and improve the stability of the overall structure of the aerosol generating medium 20.
- each second extrusion gap 10c2 is connected to the third extrusion gap 10c3, and the other side opposite to each second extrusion gap 10c2 can be connected to each other at the center position of the second molding column 10e, which is equivalent to the support ribs 212 of the aerosol generating medium 20 in Figure 18 radially spreading from the center position of the second molding column 10e to the surrounding areas.
- the aerosol generating medium 20 of this structural form has higher strength and better stability, and the cross-sectional size of the airflow channel 20a is also relatively large.
- the second extrusion gaps 10c2 may also be arranged in other forms.
- the second extrusion gaps 10c2 may be arranged in parallel or crosswise, as long as they can be connected to the third extrusion gap 10c3.
- the extrusion gap 10c may further include a fourth extrusion gap 10c4, the second molding column 10e may be provided with a second cavity 10e1 having a second sidewall 10e2, and a plurality of second extrusion gaps 10c2 surround the circumference of the second cavity 10e1 and are respectively connected to the second cavity 10e1.
- the extrusion die 10 includes a third molding column 10f provided in the second cavity 10e1, the third molding column 10f extends along the extrusion direction, and defines a fourth extrusion gap 10c4 between the third molding column 10f and the second sidewall 10e2.
- each second extrusion gap 10c2 is connected to the fourth extrusion gap 10c4 respectively.
- part of the material passes through the fourth extrusion gap 10c4 to form the second annular structure 213 located inside the medium body 21 as shown in Figures 10 and 11.
- An airflow channel 20a is formed inside the second annular structure 213.
- Each support rib 212 is connected to the second annular structure 213 respectively.
- Other airflow channels 20a are defined between the first annular structure 211, the second annular structure 213 and two adjacent support ribs 212.
- This structural form of the aerosol generating medium 20 also has the characteristics of high strength, good stability, and a relatively large cross-sectional size of the airflow channel 20a.
- the heating element can also be inserted into the second annular structure.
- the aerosol generating medium 20 is baked and heated from the inside to the outside.
- the extrusion gap 10c may include a fifth extrusion gap 10c5
- the extrusion mold 10 may be provided with a fourth molding column 10g in the first cavity 10a, the fourth molding column 10g extends along the extrusion direction of the extrusion mold 10, and the fourth molding column 10g and the plurality of first molding columns 10d define a fifth extrusion gap 10c5 connected to each of the first extrusion gaps 10c1.
- part of the material passes through the fifth extrusion gap 10c5 and can also form the first annular structure 211 shown in Figure 23, except that the medium body 21 of the aerosol generating medium 20 has no supporting ribs 212 inside, but only an air flow channel 20a with a larger cross-sectional size.
- the pressures at the various extrusion gaps 10c cannot be kept relatively uniform, that is, the pressures at some extrusion gaps 10c are relatively high, while the pressures at other extrusion gaps 10c are relatively low.
- the material is easily extruded from the extrusion gaps 10c with lower pressures, but is difficult or even impossible to extrude from the extrusion gaps 10c with higher pressures. Therefore, in order to ensure that the pressures at the various extrusion gaps 10c are relatively uniform, so as to avoid the material being extruded only from the extrusion gaps 10c with lower pressures,
- the widths of all the extrusion gaps 10c should be substantially the same or similar.
- the width dimension of at least one extrusion gap 10c may be smaller than the width dimension of another extrusion gap 10c, and the width dimension of the extrusion gap 10c refers to the distance between two opposite side walls of the extrusion gap 10c.
- the width dimension of the extrusion gap 10c with the smallest width dimension is not less than 70% of the width dimension of the extrusion gap 10c with the largest width dimension.
- the width dimension of the extrusion gap 10c with the smallest width dimension may be equal to 0.7mm, or may be greater than 0.7mm and less than 1mm.
- the width dimension of at least one of the extrusion gaps 10c corresponding to the width dimensions D11, D12 of the first extrusion gap 10c1, the width dimension D2 of the second extrusion gap 10c2, the width dimension D3 of the third extrusion gap 10c3, and the width dimension D4 of the fourth extrusion gap 10c4 in FIG. 5 may be smaller than the width dimension of another extrusion gap 10c.
- the width dimension D1 of the first extrusion gap 10c1 is relatively small. Therefore, any one of the second extrusion gap 10c2, the third extrusion gap 10c3 and the fourth extrusion gap 10c4 can be used as the extrusion gap 10c with the largest width dimension, and the first extrusion gap 10c1 is the extrusion gap 10c with the smallest width dimension.
- the width dimension D1 of the first extrusion gap 10c1 is not less than 70% of the width dimension D2 of the second extrusion gap 10c2.
- the width dimension of the extrusion gap 10c has only one value, which is equivalent to the width dimensions of the extrusion gap 10c at all positions being the same; if the extrusion gap 10c with the smallest width dimension is a non-equal-width structure, that is, the width dimensions of the extrusion gap 10c at some positions are relatively large, and the width dimensions at some positions are relatively small, then the width dimension of the extrusion gap 10c refers to the minimum value of all its width dimensions.
- the width dimension of the extrusion gap 10c has only one value. If the extrusion gap 10c with the largest width dimension is a structure of non-equal width, then the width dimension of the extrusion gap 10c refers to the maximum value of all its width dimensions.
- the width dimension of the extrusion gap 10 c with the smallest width dimension may be 70%, 80%, 85%, 90%, or 95% of the width dimension of the extrusion gap 10 c with the largest width dimension.
- the width dimensions of all the extrusion gaps 10c on the extrusion die 10 may also be the same. Taking the extrusion die 10 shown in Figure 5 as an example, the width dimension D1 of the first extrusion gap 10c1, the width dimension D2 of the second extrusion gap 10c2, the width dimension D3 of the third extrusion gap 10c3 and the width dimension D4 of the fourth extrusion gap 10c4 in Figure 5 may all be the same.
- each extrusion gap 10c has an equal width structure, and the width dimension of each extrusion gap 10c is also the same, which is equivalent to the aerosol generating medium 20 and the parts corresponding to each extrusion gap 10c have the same width dimension.
- the width dimension of each extrusion gap can be in the range of 0.1mm to 1.2mm.
- the width dimension of each extrusion gap can be 0.1mm, 0.3mm, 0.5mm, 0.75mm, 0.9mm, 1.1mm, and 1.2mm.
- the extrusion die 10 may include a first die 11 , and the first die 11 is provided with a first cavity 10 a and a plurality of first molding columns 10 d .
- one end of the first cavity 10a has a discharge port.
- the outlet is an outlet through which the material is extruded from the extrusion die 10 .
- a plurality of first forming columns 10 d may be provided at the outlet. That is, the material forms a convex structure 22 when passing through the outlet.
- the extrusion die 10 may include a second die 12 provided with a second molding column 10e, the second molding column 10e having a plurality of second extrusion gaps 10c2, the second extrusion gaps 10c2 passing through the second molding column 10e along the extension direction of the second molding column 10e, and each second extrusion gap 10c2 passing through the outer side wall of the second molding column 10e.
- the second die 12 is connected to the first die 11, and the second molding column 10e extends into the first cavity 10a. It can be understood that after extending into the first cavity 10a, the extension direction of the second molding column 10e is the same direction as the extrusion direction of the extrusion die 10.
- a third extrusion gap 10c3 is defined between the second molding column 10e and the plurality of first molding columns 10d, which is connected to each first extrusion gap 10c1 and each second extrusion gap 10c2 respectively.
- the second mold 12 and the first mold 11 may be detachably connected, for example, the second mold 12 and the first mold 11 shown in FIG1 are fastened and connected by bolts 15.
- the second mold 12 and the first mold 11 may also be non-detachably connected, for example, the second mold 12 may be welded to the first mold 11.
- the second molding column 10e extends into the first cavity 10a, thereby forming a third extrusion gap 10c3.
- the second molding column 10e is provided with a second cavity 10e1 having a second sidewall 10e2, and a plurality of second extrusion gaps 10c2 surround the circumference of the second cavity 10e1.
- the extrusion die 10 further includes a third die 13 provided with a third molding column 10f, the third die 13 is connected to the second die 12, the third molding column 10f extends into the second cavity 10e1, and defines a fourth extrusion gap 10c4 between the third molding column 10f and the second sidewall 10e2.
- the third mold 13 and the second mold 12 can also be detachably connected.
- the bolt 15 shown in Figure 1 passes through the first mold 11, the second mold 12 and the third mold 13 at the same time to fasten the first mold 11, the second mold 12 and the third mold 13.
- the third mold 13 and the second mold 12 can also be fastened together by the bolt 15 alone.
- the third mold 13 and the second mold 12 may also be non-detachably connected.
- the third mold 13 may be welded to the second mold 12 .
- the extrusion mold 10 includes a fourth mold 14 provided with a fourth molding column 10g, the fourth mold 14 is connected to the first mold 11, the fourth molding column 10g extends into the first cavity 10a, and defines a fifth extrusion gap 10c5 connected to each first extrusion gap 10c1 between the fourth molding column 10g and the plurality of first molding columns 10d.
- the fourth mold 14 and the first mold 11 may also be detachably connected, for example, the fourth mold 14 shown in FIG19 is fastened to the first mold 11 by bolts 15.
- the fourth mold 14 and the first mold 11 may also be non-detachably connected, for example, the fourth mold 14 may be welded to the first mold 11.
- the second mold 12, the third mold 13 and the fourth mold 14 can all be used in conjunction with the first mold 11 to combine different extrusion molds 10.
- the first mold 11, the second mold 12, the third mold 13 and the fourth mold 14 are all detachable structures, only one first mold 11 is needed to be used in conjunction with the second mold 12, the third mold 13 and the fourth mold 14.
- the versatility of the first mold 11 can be improved, thereby reducing the cost of the extrusion mold 10.
- the extrusion die 10 may not be provided with the first die 11, the second die 12, the third die 13 and the fourth die 14.
- the extrusion die 10 may be an integrated structure on which corresponding molding columns and extrusion gaps 10c are formed.
- the description with reference to the terms “in one embodiment”, “in some embodiments”, “in other embodiments”, “in yet other embodiments”, or “exemplary” etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application.
- the schematic representation of the above terms does not necessarily refer to the same embodiment or example.
- the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.
- those skilled in the art may combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.
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Abstract
Description
Claims (17)
- 一种用于制造气溶胶生成制品的挤出模具,包括:具有第一侧壁的第一型腔,所述第一型腔内具有至少一种挤出间隙,所述挤出间隙包括第一挤出间隙;设置在所述第一侧壁上的多个第一成型柱,多个所述第一成型柱沿所述第一型腔的周向间隔设置,且各所述第一成型柱均向所述第一型腔内凸出,以使相邻的两个所述第一成型柱之间限定出所述第一挤出间隙。
- 根据权利要求1所述的挤出模具,所述第一成型柱靠近所述第一侧壁一侧的宽度尺寸小于所述第一成型柱远离所述第一侧壁一侧的宽度尺寸。
- 根据权利要求2所述的挤出模具,所述第一成型柱包括杆部和主体部,所述杆部位于所述第一侧壁与所述主体部之间;所述杆部的宽度尺寸小于所述主体部的宽度尺寸。
- 根据权利要求3所述的挤出模具,从靠近所述第一侧壁的一侧至远离所述第一侧壁的一侧,相邻两个所述主体部之间的间距逐渐增大或保持不变。
- 根据权利要求1所述的挤出模具,从靠近所述第一侧壁的一侧至远离所述第一侧壁的一侧,所述第一成型柱的宽度尺寸逐渐减小或保持不变。
- 根据权利要求1-5任意一项所述的挤出模具,各所述第一成型柱的外形相同;或,所有所述第一成型柱中,至少部分所述第一成型柱的外形不同。
- 根据权利要求1-5任意一项所述的挤出模具,多个所述第一成型柱沿所述第一型腔的周向均匀分布或非均匀分布。
- 根据权利要求1-5任意一项所述的挤出模具,所述挤出间隙包括第 二挤出间隙和第三挤出间隙,所述挤出模具包括具有多个所述第二挤出间隙的第二成型柱,所述第二成型柱设置在所述第一型腔内,且沿所述挤出模具的挤出方向延伸,所述第二成型柱与多个所述第一成型柱之间限定出与各所述第一挤出间隙连通的所述第三挤出间隙;所述第二挤出间隙沿所述挤出方向贯穿所述第二成型柱,且各所述第二挤出间隙均与所述第三挤出间隙连通。
- 根据权利要求8所述的挤出模具,各所述第二挤出间隙的一侧分别与所述第三挤出间隙连通,各所述第二挤出间隙相对的另一侧在所述第二成型柱的中心位置处相互连通;和/或,所述挤出间隙包括第四挤出间隙,所述第二成型柱设置有具有第二侧壁的第二型腔,多个所述第二挤出间隙环绕在所述第二型腔的周侧,且分别与所述第二型腔连通;所述挤出模具包括设置在所述第二型腔内的第三成型柱,所述第三成型柱沿所述挤出方向延伸,且与所述第二侧壁之间限定出所述第四挤出间隙。
- 根据权利要求1-5任意一项所述的挤出模具,所述挤出间隙包括第五挤出间隙,所述挤出模具包括设置在所述第一型腔内的第四成型柱,所述第四成型柱沿所述挤出模具的挤出方向延伸,且所述第四成型柱与多个所述第一成型柱之间限定出与各所述第一挤出间隙连通的所述第五挤出间隙。
- 根据权利要求1-5任意一项所述的挤出模具,所有所述挤出间隙的宽度尺寸均相同;或,所有所述挤出间隙中,至少一种所述挤出间隙的宽度尺寸小于另一种所述挤出间隙的宽度尺寸,其中,宽度尺寸最小的所述挤出间隙的宽度尺寸不小于宽度尺寸最大的所述挤出间隙的宽度尺寸的70%。
- 根据权利要求11所述的挤出模具,各所述挤出间隙的宽度尺寸为0.1mm~1.2mm。
- 根据权利要求1-5任意一项所述的挤出模具,所述挤出模具包括第一模具,所述第一模具设置有所述第一型腔和多个所述第一成型柱。
- 根据权利要求13所述的挤出模具,所述第一型腔的一端具有出料口,多个所述第一成型柱设置在所述出料口处。
- 根据权利要求13所述的挤出模具,所述挤出间隙包括第二挤出间隙和第三挤出间隙,所述挤出模具包括设置有第二成型柱的第二模具,所述第二成型柱具有多个所述第二挤出间隙,所述第二挤出间隙沿所述第二成型柱的延伸方向贯穿所述第二成型柱,且各所述第二挤出间隙均贯穿所述第二成型柱的外侧壁;所述第二模具与所述第一模具连接,所述第二成型柱伸入所述第一型腔内,所述第二成型柱与多个所述第一成型柱之间限定出分别与各所述第一挤出间隙和各所述第二挤出间隙连通的所述第三挤出间隙。
- 根据权利要求15所述的挤出模具,所述挤出间隙包括第四挤出间隙,所述第二成型柱设置有具有第二侧壁的第二型腔,多个所述第二挤出间隙环绕在所述第二型腔的周侧;所述挤出模具包括设置有第三成型柱的第三模具,所述第三模具与所述第二模具连接,所述第三成型柱伸入所述第二型腔,且与所述第二侧壁之间限定出所述第四挤出间隙。
- 根据权利要求13所述的挤出模具,所述挤出间隙包括第五挤出间隙,所述挤出模具包括设置有第四成型柱的第四模具,所述第四模具与所述第一模具连接,所述第四成型柱伸入所述第一型腔内,且与多个所述第一成型柱之间限定出与各所述第一挤出间隙连通的所述第五挤出间隙。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP24835219.7A EP4725678A1 (en) | 2023-07-04 | 2024-06-18 | Extrusion mold for fabricating aerosol-generating article |
| KR1020267000404A KR20260021038A (ko) | 2023-07-04 | 2024-06-18 | 에어로졸 생성 제품을 제조하기 위한 압출 금형 |
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| CN202310817076.2 | 2023-07-04 | ||
| CN202310817076.2A CN119261151A (zh) | 2023-07-04 | 2023-07-04 | 一种用于制造气溶胶生成制品的挤出模具 |
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| Application Number | Title | Priority Date | Filing Date |
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| US19/436,251 Continuation US20260124798A1 (en) | 2023-07-04 | 2025-12-30 | Extrusion mold for fabricating aerosol-generating article |
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| WO2025007736A1 true WO2025007736A1 (zh) | 2025-01-09 |
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| PCT/CN2024/099850 Ceased WO2025007736A1 (zh) | 2023-07-04 | 2024-06-18 | 一种用于制造气溶胶生成制品的挤出模具 |
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| EP (1) | EP4725678A1 (zh) |
| KR (1) | KR20260021038A (zh) |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105124764A (zh) * | 2015-09-06 | 2015-12-09 | 叶菁 | 非燃烧型低温卷烟用相变控温式燃料组件及其热塑性缠绕挤出复合制备方法 |
| CN105705048A (zh) * | 2013-09-25 | 2016-06-22 | R.J.雷诺兹烟草公司 | 用于吸烟制品的气溶胶生成系统的热生成设备和相关的吸烟制品 |
| CN109730368A (zh) * | 2019-03-25 | 2019-05-10 | 云南巴菰生物科技有限公司 | 一种加热不燃烧卷烟及其生产方法 |
-
2023
- 2023-07-04 CN CN202310817076.2A patent/CN119261151A/zh active Pending
-
2024
- 2024-06-18 KR KR1020267000404A patent/KR20260021038A/ko active Pending
- 2024-06-18 WO PCT/CN2024/099850 patent/WO2025007736A1/zh not_active Ceased
- 2024-06-18 EP EP24835219.7A patent/EP4725678A1/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105705048A (zh) * | 2013-09-25 | 2016-06-22 | R.J.雷诺兹烟草公司 | 用于吸烟制品的气溶胶生成系统的热生成设备和相关的吸烟制品 |
| CN105124764A (zh) * | 2015-09-06 | 2015-12-09 | 叶菁 | 非燃烧型低温卷烟用相变控温式燃料组件及其热塑性缠绕挤出复合制备方法 |
| CN109730368A (zh) * | 2019-03-25 | 2019-05-10 | 云南巴菰生物科技有限公司 | 一种加热不燃烧卷烟及其生产方法 |
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| KR20260021038A (ko) | 2026-02-12 |
| CN119261151A (zh) | 2025-01-07 |
| EP4725678A1 (en) | 2026-04-15 |
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