Die deflector and extrusion die for manufacturing aerosol-generating articles

Abstract

The embodiment of the utility model provides a mold guide plate and an extrusion mold used for manufacturing aerosol generating products, the mold guide plate comprises a plurality of discharging channels, and at least part of the discharging channels are different in flowing resistance. According to the mold guide plate, the forming quality can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of molds, in particular to a mold flow guide plate and an extrusion mold for manufacturing aerosol generating articles. BACKGROUND

[0002] In related technologies, in order to improve production efficiency, some extrusion molds for manufacturing aerosol generating articles by extrusion method are provided with multiple mold cores, and materials are extruded from each mold core, so that multiple aerosol generating articles can be extruded at the same time.

[0003] However, in the extrusion process, the extrusion speed at each mold core is difficult to keep consistent, and therefore, in related technologies, the color difference of aerosol generating articles extruded by the extrusion mold with multiple mold cores is large, and the quality is uneven, and problems such as wrinkling, peeling, not forming, and eccentric air passage hole are prone to occur. CONTENT OF THE INVENTION

[0004] Therefore, an embodiment of the present application aims to provide a mold flow guide plate and an extrusion mold for manufacturing aerosol generating articles, which can improve the forming quality.

[0005] To achieve the above-mentioned purpose, an embodiment of the present application provides a mold flow guide plate, which comprises multiple material outlet channels, and the flow resistance of at least part of the material outlet channels is different.

[0006] In an embodiment, the cross-sectional area of at least part of the material outlet channels perpendicular to the extension direction is different.

[0007] In an embodiment, the number of the material outlet channels is at least three, and each material outlet channel penetrates the mold flow guide plate along the first direction relative to both sides;

[0008] Each material outlet channel is arranged along a second direction perpendicular to the first direction, and the cross-sectional area of each material outlet channel gradually increases from the middle to both sides along the second direction; or,

[0009] The mold flow guide plate comprises multiple flow guide regions arranged along a second direction perpendicular to the first direction, each flow guide region is provided with the material outlet channel, and the number of the material outlet channels in at least one flow guide region is greater than one; the cross-sectional area of the material outlet channels in the same flow guide region is the same, and the cross-sectional area of the material outlet channels in different flow guide regions gradually increases from the middle to both sides along the second direction.

[0010] In an embodiment, the length dimension of at least part of the material outlet channels along the extension direction is different.

[0011] In one embodiment, the number of the discharge channels is at least three, and each of the discharge channels extends through the mold flow guide plate along the first direction to opposite sides;

[0012] Each of the discharge channels is arranged along a second direction perpendicular to the first direction, and the length dimension of each of the discharge channels gradually decreases from the middle to the sides along the second direction; or,

[0013] The mold flow guide plate comprises a plurality of flow guide regions arranged along a second direction perpendicular to the first direction, each of the flow guide regions is provided with the discharge channels, and the number of the discharge channels in at least one of the flow guide regions is greater than one; the length dimensions of the discharge channels in the same flow guide region are the same, and the length dimensions of the discharge channels in different flow guide regions gradually decrease from the middle to the sides along the second direction.

[0014] In one embodiment, each of the discharge channels extends through the mold flow guide plate along the first direction to opposite sides, and the mold flow guide plate comprises a plate body and a boss protruding from one side of the plate body along the first direction; the boss comprises a first section and two second sections respectively located on opposite sides of the first section along a second direction perpendicular to the first direction; the first section and each of the second sections are provided with the discharge channels; the boss has a thickness dimension protruding from the plate body, and the thickness dimension of each of the second sections gradually decreases in a direction away from the first section along the second direction.

[0015] The first section is of an equal thickness structure, and the thickness dimension of the first section is greater than or equal to the maximum thickness dimension of the second sections; or,

[0016] The thickness dimension of the first section gradually decreases from the middle to the sides along the second direction, and the minimum thickness dimension of the first section is greater than or equal to the maximum thickness dimension of the second sections.

[0017] In one embodiment, each of the discharge channels extends through the mold flow guide plate along the first direction to opposite sides, and the mold flow guide plate comprises a plate body and a boss protruding from one side of the plate body along the first direction; the boss comprises at least three equal thickness sections arranged along a second direction perpendicular to the first direction, the thickness dimension of the same equal thickness section protruding from the plate body is the same, the thickness dimensions of different equal thickness sections gradually decrease from the middle to the sides along the second direction, and each of the equal thickness sections is provided with the discharge channels.

[0018] In one embodiment, the discharge channel comprises a first sub-section and a second sub-section, the first sub-section is located upstream of the second sub-section along the material flow direction, the cross-sectional area of the first sub-section gradually increases from one end away from the second sub-section to one end close to the second sub-section, and the second sub-section is of an equal cross-section structure; or,

[0019] The cross-sectional area of the discharge channel gradually decreases along the material flow direction.

[0020] In one embodiment, a plurality of the discharge channels are arranged in multiple rows, and adjacent two rows of the discharge channels are aligned or staggered.

[0021] In one embodiment, the discharge channel extends in a straight line; or,

[0022] The discharge channel is in a curve shape with a curvature not equal to 0 in at least a partial region along the extension direction.

[0023] Another embodiment of the present application provides an extrusion die for manufacturing an aerosol generating article, comprising:

[0024] The die flow guide plate as described above;

[0025] A die core corresponding to each of the discharge channels, and each of the die cores is arranged downstream of the corresponding discharge channel along the material flow direction.

[0026] In one embodiment, the extrusion die comprises a die core mounting plate, the die core mounting plate has mounting holes corresponding to the discharge channels, and each of the die cores is arranged in the corresponding mounting hole.

[0027] In one embodiment, at least part of the die cores are arranged eccentrically with respect to the corresponding discharge channels.

[0028] Embodiments of the present application provide a die flow guide plate and an extrusion die for manufacturing an aerosol generating article, the die flow guide plate is provided with a plurality of discharge channels, by adjusting the flow resistance of each discharge channel, the flow resistances of at least part of the discharge channels are different, the flow rates of the materials in each discharge channel can be kept substantially consistent during the extrusion process, thereby, the extrusion speeds of the materials at each die core of the extrusion die can be kept substantially consistent, and the forming quality of the extruded aerosol generating substrate can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 A structure diagram of a first extrusion die according to an embodiment of the present application;

[0030] Figure 2 A view of A of Figure 1 ​

[0031] Figure 3 B view of Figure 1

[0032] Figure 4 Structure diagram of the mold flow guide plate shown in Figure 1

[0033] Figure 5 Structure diagram of the mold core mounting plate shown in Figure 1

[0034] Figure 6 Structure diagram of the mold flow guide plate shown in another view Figure 4

[0035] Figure 7 C-C sectional view of Figure 6

[0036] Figure 8 Structure diagram of the mold flow guide plate shown in another view Figure 4

[0037] Figure 9 Structure diagram of the second mold flow guide plate of the embodiment of the present application

[0038] Figure 10 Structure diagram of the mold flow guide plate shown in another view Figure 9

[0039] Figure 11 D-D sectional view of Figure 10

[0040] Figure 12 Structure diagram of the third mold flow guide plate of the embodiment of the present application

[0041] Figure 13 E-E sectional view of Figure 12

[0042] Figure 14 Sectional view of the fourth mold flow guide plate of the embodiment of the present application, with the dotted arrow indicating the material flow direction

[0043] Figure 15 Structure diagram of the second extrusion die of the embodiment of the present application

[0044] Figure 16 Structure diagram of the aerosol generating substrate extruded by the extrusion die shown in Figure 1

[0045] ​​​​​​​​​​Reference Signs List

[0046] 100, extrusion die; 10, die flow guide; 10a, discharge channel; 10a1, first sub-section; 10a2, second sub-section; 11, plate body; 12, boss; 121, first section; 122, second section; 123, constant thickness section; 20, die core; 30, die core mounting plate; 30a, mounting hole; 200, aerosol generating substrate. DETAILED DESCRIPTION

[0047] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms such as "first direction" is based on the orientation or positional relationship shown in the drawings, and the orientation or positional relationship indicated by the terms such as "second direction" is based on the orientation or positional relationship shown in the drawings. Figure 7 The orientation terms are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the embodiments of the present application. Figure 6 And Figure 7 The orientation terms are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the embodiments of the present application.

[0048] The embodiments of the present application provide an extrusion die 100 for manufacturing an aerosol generating article.

[0049] The aerosol generating article is used in cooperation with an electronic atomization device having a heating element, and specifically, the aerosol generating article includes an aerosol generating substrate 200 (see Figure 16 The heating element heats and atomizes the aerosol generating substrate 200 to generate an aerosol for a user to smoke or for medical, cosmetic, etc.

[0050] There are various heating methods for the heating element, and exemplarily, the heating methods include center heating and perimeter heating. The center heating method refers to inserting the heating element into the inside of the aerosol generating substrate 200 to bake and heat the aerosol generating substrate 200. The perimeter heating method refers to arranging the heating element at the periphery of the aerosol generating substrate 200 to bake and heat the aerosol generating substrate 200. These heating methods can be resistance heating, electromagnetic heating, infrared heating, microwave heating, laser heating, etc., which are not limited here.

[0051] The extrusion die 100 is used in cooperation with an extruder, such as a hydraulic ram extruder, a twin-screw extruder, a single-screw extruder, etc., to manufacture all or part of the aerosol generating article by extruding and molding the material.

[0052] Extrusion molding refers to a processing method in which material is added to an extruder, the material is pushed forward by the screw through the action between the barrel and the screw of the extruder, and various cross-section products or semi-products are made by continuously passing through the extrusion die 100 at the outlet of the extruder. The material formed by extrusion molding is in the form of a strip.

[0053] The embodiments of the present application are described by taking the extrusion die 100 for manufacturing the aerosol generating substrate 200 in the aerosol generating article as an example. It should be noted that the aerosol generating article can only have the aerosol generating substrate 200, or can be a combination of the aerosol generating substrate 200 and other structures. For example, according to needs, the aerosol generating article can also be provided with a functional section at one end or both ends of the aerosol generating substrate 200. The functional section can only have a filtering function, or can have both filtering and temperature reducing functions. In some embodiments, the functional section can also be made of the extrusion die 100 in the embodiments of the present application.

[0054] The specific structure of the aerosol generating substrate 200 is not limited here. For example, the aerosol generating substrate 200 can be made of the atomization medium itself, for example, made of a smoking flavor medium. In other embodiments, the aerosol generating substrate 200 can also include a substrate and an atomization medium arranged on the substrate. The substrate can be, for example, a high-temperature-resistant carbon fiber. In this way, by arranging the substrate, the strength of the aerosol generating substrate 200 can be improved, and a certain degree of high temperature can also be withstood without producing an odor.

[0055] The specific composition of the aerosol generating substrate 200 is not limited here. For example, in an embodiment, the aerosol generating substrate 200 can include plant components, additive components, smoking agent components, adhesive components, etc.

[0056] In an embodiment, the plant component is one or more combinations of powders formed after crushing treatment of tobacco raw materials, tobacco fragments, tobacco stems, tobacco fines, and flavor plants. The plant component is the core source of product flavor. Endogenous substances in the plant component, such as nicotine, enter the human body through atomization, promote the pituitary gland to produce dopamine, and thus obtain a physiological satisfaction feeling.

[0057] In an embodiment, the additive component can be one or more combinations of inorganic fillers, lubricants, and emulsifiers. The inorganic fillers include one or more combinations of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talc powder, and diatomite. The inorganic filler can provide skeletal support for the plant component, and at the same time, the inorganic filler also has micropores, which can improve the porosity of the wall material after the plant component is formed, thereby improving the aerosol release rate.

[0058] The lubricant includes one or more of combinations of candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, palmitic acid. The lubricant can increase the flowability of the particles, reduce the friction between the particles, make the overall density of the particles more uniform, and reduce the pressure required for molding and the wear of the mold.

[0059] The emulsifier includes one or more of combinations of polyglycerin fatty acid ester, Tween-80, polyvinyl alcohol. The emulsifier can slow down the loss of flavoring substances during storage, increase the stability of the flavoring substances, and improve the sensory quality of the product. The emulsifier (also known as a surfactant) can reduce the interfacial tension between water-soluble and water-insoluble components in the mixed system, and form a relatively strong film on the surface of the droplets or a double electric layer due to the charges given by the emulsifier, preventing the droplets from aggregating with each other and maintaining a uniform emulsion. The emulsification of two incompatible components can improve the consistency of the product quality.

[0060] The function of the smoking agent component is to generate a large amount of steam when heated, thereby increasing the amount of smoke of the smoking article. In an embodiment, the smoking agent may, for example, include one or more of combinations of monohydric alcohols (such as menthol), polyhydric alcohols (such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol), esters of polyhydric alcohols (such as glycerol monoacetate, glycerol diacetate, or glycerol triacetate), monocarboxylic acids, polycarboxylic acids (such as lauric acid, myristic acid), or fatty esters of polycarboxylic acids (such as dimethyl dodecanedioate, dimethyl tetradecanedioate, erythritol, 1,3-butanediol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl laurate, Triactin, meso-erythritol, glycerol diacetate, diethyl suberate, triethyl citrate, benzyl benzoate, benzyl phenyl acetate, ethyl vanillate, glycerol tributyrate, lauryl acetate).

[0061] In an embodiment, the binder component is a natural plant extract, a non-ionic modified viscous polysaccharide, including one or more of combinations of tamarind polysaccharide, pullulan, fucoidan, locust bean gum, guar gum, xyloglucan. The binder is in close contact with the interface of the material of the product components by wetting, generating intermolecular attraction, thereby playing a role in binding the powders, liquids, and the like of the component materials. At the same time, the use of natural plant extracts and non-ionic binders can avoid the release of harmful substances such as methanol, formaldehyde, and propylene aldehyde caused by colloid modification, and improve the safety of the product.

[0062] Exemplarily, the aerosol generating substrate 200 can be a granular combination body, which is a reconstituted tobacco medium, for example, a reconstituted tobacco medium containing components such as smoke generating agents and tobacco. The aerosol generating substrate 200 of the granular combination body is an integrated medium during heated smoking or after the heating is stopped, and is not prone to disintegration and falling. The problems such as flake loosening, filamentous components, granular components falling off, and difficulty in cleaning of the flaky, filamentous or scattered granular aerosol generating substrate in the prior art are solved.

[0063] Please refer to Figures 1 to 14 The extrusion die 100 of the embodiment of the present application comprises a die flow guide plate 10 and a die core 20.

[0064] The die flow guide plate 10 comprises a plurality of discharge channels 10a, and flow resistances of at least some of the plurality of discharge channels 10a are different.

[0065] The discharge channel 10a is a channel for the material to pass through during the extrusion process.

[0066] The number of the discharge channels 10a can be two or more than two.

[0067] The distribution mode of the discharge channels 10a on the die flow guide plate 10 is not limited. For example, the discharge channels 10a can be arranged in one row, and when the number of the discharge channels 10a is relatively large, the discharge channels 10a can also be arranged in multiple rows. Exemplarily, Figures 2 to 4 The discharge channels 10a shown are arranged in two rows. For the discharge channels 10a arranged in multiple rows, the adjacent two rows of discharge channels 10a can be staggered as shown, Figures 2 to 4 and in other embodiments, the adjacent two rows of discharge channels 10a can also be aligned.

[0068] In addition, Figures 2 to 4 The discharge channels 10a shown are arranged in a straight line, and in other embodiments, the discharge channels 10a can also be arranged in various shapes such as a wave shape, a circular shape, an elliptical shape, a racetrack shape, and the like. The discharge channels 10a can also be randomly distributed on the die flow guide plate 10.

[0069] The discharge channels 10a can extend along a straight line as shown, Figure 7 that is, the extension direction of the straight-through air passage is a straight line.

[0070] In other embodiments, the discharge channel 10a can also be in a curved shape with a curvature not equal to 0 in at least a partial region along the extension direction. For example, along the extension direction of the discharge channel 10a, the discharge channel 10a can be in a structure with both curved segments with a curvature not equal to 0 and straight segments with a curvature equal to 0, or in a structure with only curved segments with a curvature not equal to 0 and no straight segments with a curvature equal to 0. That is, from the starting point to the ending point of the discharge channel 10a along the extension direction, the discharge channel 10a is not completely straight.

[0071] The shape of the cross section of the discharge channel 10a (the cross section refers to a section of the discharge channel 10a perpendicular to the extension direction of the discharge channel 10a itself, Figure 6 The shape of the cross section of the discharge channel 10a is not limited, for example, the shape of the cross section of the discharge channel 10a can be circular, oval, track-shaped, polygonal (including but not limited to triangular, square, prismatic, etc.), special-shaped, etc., wherein the special-shaped refers to other symmetrical or asymmetrical shapes other than the shapes listed above.

[0072] The flow resistance refers to the force that hinders the smooth flow of fluid due to the viscous action of the fluid and the interaction with the solid wall or the flow channel geometry during the movement of the fluid.

[0073] According to specific conditions, the flow resistance of part of the discharge channels 10a can be different from that of other discharge channels 10a, or the flow resistance of all the discharge channels 10a can be different.

[0074] The greater the flow resistance, the smaller the flow rate of the material in the discharge channel 10a, and the smaller the flow resistance, the greater the flow rate of the material in the discharge channel 10a.

[0075] Please continue to refer to Figure 2 and Figure 3 The mold cores 20 correspond to the discharge channels 10a one by one, and each mold core 20 is arranged downstream of the corresponding discharge channel 10a along the material flow direction.

[0076] The mold cores 20 are used to extrude the aerosol generating substrate 200. Each mold core 20 is arranged downstream of the corresponding discharge channel 10a along the material flow direction, which means that the material first enters the discharge channel 10a and then flows from the discharge channel 10a to the mold core 20. That is, the material entering the discharge channel 10a is extruded from the mold core 20 to form the aerosol generating substrate 200

[0077] The number of mold cores 20 is consistent with the number of discharge channels 10a, that is, one mold core 20 is arranged downstream of each discharge channel 10a along the material flow direction. Exemplarily, Figure 2 and Figure 3The shown mold flow guide plate 10 is provided with nine discharge channels 10a, and one mold core 20 is arranged at each discharge channel 10a, that is, the number of mold cores 20 is also nine, and the material is extruded from each mold core 20, so that nine aerosol generating substrates 200 can be extruded at the same time.

[0078] For the convenience of installing the mold core 20, see the examples of Figure 1 and Figure 5 The extrusion mold 100 can be provided with a mold core mounting plate 30, which has mounting holes 30a corresponding to the discharge channels 10a, and each mold core 20 is arranged in the corresponding mounting hole 30a.

[0079] The extrusion mold 100 is provided with a mold flow guide plate 10 having a plurality of discharge channels 10a, and the flow resistance of at least part of the plurality of discharge channels 10a is different. The purpose is to make the flow rate of the material in each discharge channel 10a substantially consistent during the extrusion process, so that the discharge volume of each discharge channel 10a in unit time (that is, the volume of material flowing out of the discharge channel 10a in unit time) can be substantially consistent, and thus the extrusion speed of the material at each mold core 20 can be substantially consistent.

[0080] Specifically, in the related art, for the extrusion mold with multiple mold cores, since the positions of the mold cores are different, the extrusion pressure of the extruder is difficult to be uniformly distributed at each mold core during the extrusion process, which leads to the difficulty in keeping the extrusion speed of each mold core consistent, and further causes the aerosol generating substrate extruded from each mold core to have large color difference, uneven quality, and prone to problems such as wrinkling, peeling, not forming, airway hole eccentricity, etc.

[0081] The extrusion die 100 of the embodiment of the present application is provided with the die flow guide plate 10 having a plurality of discharge channels 10a. Since the die flow guide plate 10 needs to be passed by the material, the distribution of the extrusion pressure of the extruder at each discharge channel 10a is substantially the same as the distribution at each die core 20. Therefore, in specific applications, the positions of the discharge channels 10a on the die flow guide plate 10 can be arranged according to the distribution of the extrusion pressure of the extruder. For example, the die core 20 subjected to a larger extrusion pressure can be correspondingly provided with a discharge channel 10a with a smaller flow resistance, and the die core 20 subjected to a smaller extrusion pressure can be correspondingly provided with a discharge channel 10a with a smaller flow resistance. By adjusting the flow resistance of each discharge channel 10a, the flow rates of the materials in the discharge channels 10a can be substantially kept consistent, so that the discharge volumes of the discharge channels 10a per unit time (i.e. the volumes of the materials flowing out of the discharge channels 10a per unit time) can be substantially kept consistent. For example, the error of the discharge volumes of the discharge channels 10a per unit time can be controlled within a range of 0-10% (including the end values), such as 0, 3%, 5%, 8%, 10%, etc. More preferably, the error of the discharge volumes of the discharge channels 10a per unit time can be controlled within a range of 0-5% (including the end values). Thus, the extrusion speeds of the materials at the die cores 20 can be substantially kept consistent, and the problems such as large color difference, wrinkling, peeling, unshaping, and eccentric air passage hole of the extruded aerosol generating substrate 200 at the die cores 20 can be avoided. Therefore, the die flow guide plate 10 of the embodiment of the present application can effectively improve the forming quality of the extruded aerosol generating substrate 200.

[0082] In addition, it should be noted that, for the extrusion method in the prior art, when the extruder extrudes materials with different formulations respectively (each time only one kind of material with the same formulation is extruded), the extrusion speeds of the materials with different formulations at the die cores can have large differences. Therefore, for the materials with large differences, the extrusion die 100 of the embodiment of the present application can be respectively provided with die flow guide plates 10 with flow resistance adapted to the materials. That is, when one kind of material is extruded, the die flow guide plate 10 corresponding to the material is used, and when another kind of material is extruded, another die flow guide plate 10 corresponding to the material is used, so that the extrusion speeds of the materials with different formulations at the die cores 20 can be substantially kept consistent.

[0083] In an embodiment, referring to Figure 3 , Figures 6 to 13 , the cross-sectional areas of at least part of the discharge channels 10a can be different. That is, the flow resistance of the discharge channels 10a can be changed by changing the cross-sectional areas of at least part of the discharge channels 10a.

[0084] According to specific conditions, the cross-sectional area of some of the discharge channels 10a can be different from that of the other discharge channels 10a, or the cross-sectional area of all the discharge channels 10a can be different.

[0085] The discharge channels 10a can be of an equal cross-section structure, or of a variable cross-section structure.

[0086] For the variable cross-section structure, see Figure 13 , the discharge channels 10a can include a first sub-section 10a1 and a second sub-section 10a2, the first sub-section 10a1 being located upstream of the second sub-section 10a2 along the material flow direction, that is, the material entering the discharge channels 10a flows from the first sub-section 10a1 to the second sub-section 10a2, or the mold core 20 is located at one end of the second sub-section 10a2 away from the first sub-section 10a1.

[0087] See Figure 13 , the cross-sectional area of the first sub-section 10a1 can gradually decrease from one end away from the second sub-section 10a2 to one end close to the second sub-section 10a2, that is, the closer to the second sub-section 10a2, the smaller the cross-sectional area of the first sub-section 10a1, and the second sub-section 10a2 is of an equal cross-section structure. Such a discharge channel 10a can guide the flow through the first sub-section 10a1, thereby facilitating the material to be guided to the second sub-section 10a2.

[0088] In other embodiments, the cross-sectional area of the discharge channels 10a can also gradually decrease along the material flow direction.

[0089] For the discharge channels 10a of the variable cross-section structure, the cross-sectional area of the discharge channels 10a refers to the smallest cross-sectional area of the discharge channels 10a.

[0090] The greater the cross-sectional area of the discharge channels 10a, the smaller the flow resistance of the discharge channels 10a, and the smaller the cross-sectional area of the discharge channels 10a, the greater the flow resistance of the discharge channels 10a.

[0091] In an embodiment, see Figure 3 , Figures 6 to 12 , the number of the discharge channels 10a can be at least three, each of the discharge channels 10a extending through the mold flow guide plate 10 along opposite sides in the first direction, the plurality of discharge channels 10a can be arranged along a second direction perpendicular to the first direction, and the cross-sectional area of each of the discharge channels 10a gradually increases from the middle to the sides in the second direction.

[0092] The arrangement of the discharge channels 10a in the second direction is not limited. For example, the discharge channels 10a can be arranged in the second direction in an aligned manner, i.e., all the discharge channels 10a are arranged in a straight line. Alternatively, the discharge channels 10a can be arranged in the second direction in a staggered manner, for example, as shown in FIG. 2, the discharge channels 10a are arranged in multiple rows, and the discharge channels 10a in adjacent rows are staggered. Figure 6 As the staggered discharge channels 10a have a relative positional relationship in the second direction, all the discharge channels 10a are arranged in the second direction.

[0093] The discharge channels 10a can be symmetrically arranged in the first direction. The cross-sectional areas of the two symmetrically arranged discharge channels 10a can be the same.

[0094] For example, referring to FIG. 2, the nine discharge channels 10a are arranged at positions 1-9. The discharge channels 10a at positions 1 and 9 are symmetrically arranged relative to the discharge channel 10a at position 5, and the cross-sectional areas of the two discharge channels 10a at positions 1 and 9 can be the same. The discharge channels 10a at positions 2 and 8 are symmetrically arranged relative to the discharge channel 10a at position 5, and the cross-sectional areas of the two discharge channels 10a at positions 2 and 8 can be the same. The discharge channels 10a at positions 3 and 7 are symmetrically arranged relative to the discharge channel 10a at position 5, and the cross-sectional areas of the two discharge channels 10a at positions 3 and 7 can be the same. The discharge channels 10a at positions 4 and 6 are symmetrically arranged relative to the discharge channel 10a at position 5, and the cross-sectional areas of the two discharge channels 10a at positions 4 and 6 can be the same. The cross-sectional areas of the discharge channels 10a gradually increase from position 5 to position 1, and also gradually increase from position 5 to position 9. Figure 6 Figure 6 For ease of description, the arrangement positions of the nine discharge channels 10a in FIG. 2 can be respectively identified by numbers 1-9. The discharge channels 10a at positions 1 and 9 are symmetrically arranged relative to the discharge channel 10a at position 5, and the cross-sectional areas of the two discharge channels 10a at positions 1 and 9 can be the same. The discharge channels 10a at positions 2 and 8 are symmetrically arranged relative to the discharge channel 10a at position 5, and the cross-sectional areas of the two discharge channels 10a at positions 2 and 8 can be the same. The discharge channels 10a at positions 3 and 7 are symmetrically arranged relative to the discharge channel 10a at position 5, and the cross-sectional areas of the two discharge channels 10a at positions 3 and 7 can be the same. The discharge channels 10a at positions 4 and 6 are symmetrically arranged relative to the discharge channel 10a at position 5, and the cross-sectional areas of the two discharge channels 10a at positions 4 and 6 can be the same. The cross-sectional areas of the discharge channels 10a gradually increase from position 5 to position 1, and also gradually increase from position 5 to position 9.

[0095] Specifically, the multiple discharge channels 10a are arranged in the second direction, and the mold cores 20 corresponding to the discharge channels 10a are also arranged in the second direction. For the mold cores 20 arranged in the second direction, the farther from the middle position, the smaller the extrusion pressure on the mold core 20 and the corresponding discharge channel 10a. Therefore, the cross-sectional areas of the discharge channels 10a gradually increase from the middle to both sides in the second direction, so that the flow resistance of the feed channels near the middle position is relatively large, and the flow resistance of the feed channels near both sides is relatively small, thereby enabling the discharge volume of the material from each discharge channel 10a per unit time to be substantially consistent.

[0096] ​In another embodiment, the mold flow guide 10 can also include a plurality of flow guide regions arranged along the second direction, each flow guide region is provided with a discharge passage 10a, and the number of discharge passages 10a in at least one flow guide region is greater than one. The cross-sectional areas of the discharge passages 10a in the same flow guide region are the same, and the cross-sectional areas of the discharge passages 10a in different flow guide regions gradually increase from the middle to both sides along the second direction. That is, the cross-sectional areas of the discharge passages 10a can also not completely gradually increase from the middle to both sides along the second direction, and at least one flow guide region can be provided with two or more discharge passages 10a, and the cross-sectional areas of the discharge passages 10a in the same flow guide region are the same.

[0097] For example, referring to Figure 10 , In the mold flow guide 10 in Figure 10 , there are seven flow guide regions (one dashed box represents one flow guide region), and for the sake of description, the seven flow guide regions are respectively marked as X1-X7, wherein there are three discharge passages 10a in the flow guide region X4, the cross-sectional areas of the three discharge passages 10a are the same, there is one discharge passage 10a in each of the flow guide regions X1-X3 and X5-X7, and the cross-sectional areas of the discharge passages 10a in each flow guide region gradually increase in the order of the flow guide regions X4-X1 and also gradually increase in the order of the flow guide regions X4-X7.

[0098] It can be understood that the number of discharge passages 10a in any one of the flow guide regions X1-X3 and the flow guide regions X5-X7 can also be greater than one, and when the number of discharge passages 10a in any one of the flow guide regions X1-X3 and the flow guide regions X5-X7 is greater than one, there can also be only one discharge passage 10a in the flow guide region X4.

[0099] This arrangement can also make the flow resistance of the feeding passages close to the middle position relatively large, and the flow resistance of the feeding passages close to both sides relatively small, so that the discharge volume of the material from each discharge passage 10a per unit time can be substantially consistent.

[0100] In one embodiment, referring to Figures 6 to 8 , Figure 13 , the length dimension L of at least part of the discharge passages 10a along the extension direction can be different, that is, the flow resistance of the discharge passage 10a can be changed by changing the length dimension L of at least part of the discharge passage 10a along the extension direction.

[0101] According to specific conditions, the length dimension L of some of the discharge channels 10a in the extending direction can be different from the length dimension L of the other discharge channels 10a in the extending direction, or the length dimension L of all the discharge channels 10a in the extending direction can be different.

[0102] The greater the length dimension L of the discharge channel 10a in the extending direction, the greater the flow resistance of the discharge channel 10a, and the smaller the length dimension L of the discharge channel 10a in the extending direction, the smaller the flow resistance of the discharge channel 10a.

[0103] In an embodiment, referring to Figures 5 to 7 For the number of discharge channels 10a being at least three, and each discharge channel 10a penetrating the mold flow guide plate 10 on the opposite sides of the mold flow guide plate 10 in the first direction, each discharge channel 10a can be arranged in a second direction perpendicular to the first direction, and the length dimension L of each discharge channel 10a gradually decreases from the middle to the sides in the second direction.

[0104] The discharge channels 10a can also be symmetrically arranged in the first direction, and the length dimension L of the two symmetrically arranged discharge channels 10a can be the same.

[0105] For example, still referring to the mold flow guide plate 10 shown in Figure 5 The discharge channels 10a at positions 1 and 9 are symmetrically arranged relative to the discharge channel 10a at position 5, and the length dimension L of the two discharge channels 10a can be the same, the discharge channels 10a at positions 2 and 8 are symmetrically arranged relative to the discharge channel 10a at position 5, and the length dimension L of the two discharge channels 10a at the two positions can be the same, the discharge channels 10a at positions 3 and 7 are symmetrically arranged relative to the discharge channel 10a at position 5, and the length dimension L of the two discharge channels 10a at the two positions can be the same, and the discharge channels 10a at positions 4 and 6 are symmetrically arranged relative to the discharge channel 10a at position 5, and the length dimension L of the two discharge channels 10a at the two positions can be the same. The length dimension L of the discharge channels 10a gradually decreases from position 5 to position 1, and also gradually decreases from position 5 to position 9.

[0106] The gradual decrease of the length dimension L of each discharge channel 10a in the second direction from the middle to the sides can also make the flow resistance of the feed channel near the middle position relatively large, and the flow resistance of the feed channel near the two sides relatively small, so that the discharge volume of the material from each discharge channel 10a per unit time can be substantially consistent.

[0107] In another embodiment, the mold flow guide plate 10 can also include a plurality of flow guide regions arranged along the second direction, each flow guide region is provided with a discharge passage 10a, and the number of discharge passages 10a in at least one flow guide region is greater than one; the length dimension L of the discharge passages 10a in the same flow guide region is the same, and the length dimension L of the discharge passages 10a in different flow guide regions gradually decreases from the middle to both sides along the second direction. That is, the length dimension L of each discharge passage 10a can also not completely gradually decrease from the middle to both sides along the second direction, and at least one flow guide region can be provided with two or more discharge passages 10a, and the length dimension L of the discharge passages 10a in the same flow guide region is the same.

[0108] For example, still taking the mold flow guide plate 10 shown in Figure 10 as an example, there are three discharge passages 10a in the flow guide region X4, and the length dimension L of the three discharge passages 10a is the same, and there is one discharge passage 10a in each of the flow guide regions X1-X3 and X5-X7, and the length dimension L of the discharge passage 10a in each flow guide region gradually decreases in the order of the flow guide regions X4-X1 and X4-X7.

[0109] This arrangement can also make the flow resistance of the feeding passages close to the middle position relatively large, and the flow resistance of the feeding passages close to both sides relatively small, so that the discharge volume of the material from each discharge passage 10a per unit time can be substantially consistent.

[0110] In an embodiment, referring to Figures 6 to 10 , the mold flow guide plate 10 includes a plate body 11 and a boss 12 protruding from one side of the plate body 11 along the first direction, and the boss 12 includes a first section 121 and two second sections 122, and the two second sections 122 are respectively located on the opposite sides of the first section 121 along the second direction. For the mold flow guide plate 10 through which each discharge passage 10a penetrates along the opposite sides of the first direction, the first section 121 and each second section 122 can be provided with a discharge passage 10a, that is, part of the discharge passages 10a penetrates the plate body 11 and the first section 121, and part of the discharge passages 10a penetrates the plate body 11 and each second section 122.

[0111] The first section 121 can be provided with one or more than one discharge passage 10a, and each second section 122 can also be provided with one or more than one discharge passage 10a.

[0112] All the discharge channels 10a on the mold flow guide plate 10 can penetrate through the plate body 11 and the boss 12, which is equivalent to all the discharge channels 10a being arranged on the boss 12. Alternatively, part of the discharge channels 10a on the mold flow guide plate 10 can only penetrate through the plate body 11 but not the boss 12, which is equivalent to part of the discharge channels 10a being arranged on the plate body 11 but not on the boss 12.

[0113] Please continue to refer to Figure 7 The boss 12 has a thickness dimension H protruding from the plate body 11. For example, please refer to Figure 7 and Figure 8 The thickness dimension H of each second section 122 can gradually decrease in the second direction away from the first section 121. The thickness dimension H of the first section 121 gradually decreases from the middle to both sides in the second direction, and the minimum thickness dimension H of the first section 121 is greater than or equal to the maximum thickness dimension H of the second section 122. That is, both the first section 121 and the second section 122 have a non-constant thickness structure with varying thickness dimensions H.

[0114] Please refer to Figure 7 and Figure 8 The first section 121 can be smoothly transitioned to the second section 122, which means that the junction between the first section 121 and the second section 122 is relatively smooth without obvious protrusions or depressions, or in other words, the curvature of the first section 121 and the curvature of the second section 122 have continuity. For example, the shape of the cross section of the boss 12 parallel to the first direction can be a regular shape such as a circular arc or an elliptical arc.

[0115] Since the first section 121 and the two second sections 122 are both provided with discharge channels 10a, and the minimum thickness dimension H of the first section 121 is greater than or equal to the maximum thickness dimension H of the second section 122, such a boss 12 can facilitate the length dimension L of the discharge channel 10a arranged on the second section 122 to be less than the length dimension L of the discharge channel 10a arranged on the first section 121, thereby allowing the length dimension L of the discharge channel 10a arranged on the boss 12 to gradually decrease from the middle to both sides in the second direction.

[0116] For example, please refer to Figure 9 The first section 121 can also have a constant thickness structure, and the thickness dimension H of the first section 121 is greater than or equal to the maximum thickness dimension H of the second section 122. That is, the thickness dimension H of the first section 121 does not change, and the thickness dimension H of the first section 121 is a fixed value.

[0117] When the first section 121 is provided with more than one discharge channel 10a, the discharge channels 10a located on the first section 121 can have the same length dimension L.

[0118] When the thickness dimension H of the first section 121 is equal to the maximum thickness dimension H of the second section 122, the shape of the cross section of the boss 12 parallel to the first direction can be trapezoidal, for example.

[0119] The boss 12 can also facilitate the length dimension L of the discharge passage 10a provided on the second section 122 being less than the length dimension L of the discharge passage 10a provided on the first section 121, so that the length dimension L of the discharge passage 10a provided on the boss 12 can also generally gradually decrease from the middle to the two sides along the second direction.

[0120] In one embodiment, referring to Figure 14 The boss 12 can include at least three equal-thickness sections 123 arranged along the second direction, and the same equal-thickness section 123 protrudes from the thickness dimension H of the plate body 11 by the same thickness dimension H, that is, the thickness dimension H of the same equal-thickness section 123 does not change, and the thickness dimension H is a fixed value. The thickness dimension H of different equal-thickness sections 123 gradually decreases from the middle to the two sides along the second direction, that is, the boss 12 can be stepped and gradually decrease from the middle to the two sides along the second direction. Each equal-thickness section 123 is provided with a discharge passage 10a.

[0121] Each equal-thickness section 123 can be provided with one or more discharge passages 10a.

[0122] All the discharge passages 10a on the mold flow guide plate 10 can all penetrate the plate body 11 and the boss 12, which is equivalent to all the discharge passages 10a being provided on the boss 12. Some of the discharge passages 10a on the mold flow guide plate 10 can also only penetrate the plate body 11 without penetrating the boss 12, which is equivalent to some of the discharge passages 10a being provided on the plate body 11 without being provided on the boss 12.

[0123] Since the thickness dimension H of different equal-thickness sections 123 gradually decreases from the middle to the two sides along the second direction, the length dimension L of the discharge passage 10a provided on each equal-thickness section 123 can also gradually decrease from the middle to the two sides along the second direction.

[0124] It should be noted that according to specific conditions, at least part of the discharge passages 10a can have different cross-sectional areas, and all the discharge passages 10a can have the same length dimension L along the extension direction. At least part of the discharge passages 10a can also have different length dimensions L along the extension direction, and all the discharge passages 10a can have different cross-sectional areas. At least part of the discharge passages 10a can also have different cross-sectional areas, and at least part of the discharge passages 10a can also have different length dimensions L along the extension direction.

[0125] In one embodiment, referring to Figure 15At least some of the mold cores 20 can be eccentrically set with the corresponding discharge channel 10a. That is to say, depending on the specific situation, some of the mold cores 20 can be eccentrically set with the corresponding discharge channel 10a, or all of the mold cores 20 can be eccentrically set with the corresponding discharge channel 10a.

[0126] Specifically, in some cases, when all the die cores 20 are concentrically set with the corresponding discharge channel 10a, the aerosol matrix 200 extruded from at least some of the die cores 20 may have wrinkles. The reason for the wrinkles is that the extrusion speed at some locations of the die cores 20 is too fast, which causes material to accumulate and thus produce wrinkles.

[0127] For the mold core 20 that may produce wrinkles, the mold core 20 can be set eccentrically with the corresponding discharge channel 10a. By using the mold guide plate 10 to block the position on the mold core 20 with a faster extrusion speed, the extrusion speed at that position can be reduced, so that the extrusion speed of the entire mold core 20 can be roughly balanced, thereby effectively solving the problem of wrinkles in the aerosol generation matrix 200.

[0128] For example, please refer to Figure 15 ,for Figure 15 As shown in the diagram, depending on the molding of the aerosol generating matrix 200, the wrinkled areas of the aerosol generating matrix 200 extruded from the five lower mold cores 20 are closer to the lower ends of these five mold cores 20, while the wrinkled areas of the aerosol generating matrix 200 extruded from the four upper mold cores 20 are closer to the upper ends of these four mold cores 20. Therefore, by adjusting the relative position of the discharge channel 10a and the mold cores 20, the mold guide plate 10 can block part of the lower end of the five lower mold cores 20 and part of the upper end of the four upper mold cores 20, thereby effectively solving the problem of wrinkling in the aerosol generating matrix 200.

[0129] It should be noted that the eccentric setting of the mold core 20 and the corresponding discharge channel 10a is not limited to... Figure 15 As shown, the specific position of the eccentric setting of the mold core 20 and the corresponding discharge channel 10a needs to be adjusted according to the actual location where wrinkles appear in the aerosol generation matrix 200.

[0130] Understandably, if the aerosol generated by the die core 20 produces matrix 200 with almost no wrinkling, the die core 20 can also... Figure 3 The corresponding discharge channel 10a is set concentrically as shown.

[0131] In the description of the application, the description of the terms "in an embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. means that the particular feature, structure, material or characteristic being described is included in at least one embodiment or example of the application. The illustrative appearances of the above-mentioned terms in various places in the specification are not necessarily referring to the same embodiment or example. Moreover, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Furthermore, the application can be implemented in any suitable combination of hardware and / or software for any real or theoretical computer system dependent on the particular needs and requirements of the application being implemented. Moreover, the different embodiments or examples of the application can be combined with each other and / or combined with the features of the different embodiments or examples without departing from the scope of the application.

[0132] The above description is merely illustrative of the application, and is not intended to limit the application. The application can be modified and varied in various ways, and it is therefore intended that the application encompass all such modifications and variations as fall within the scope of the application. Any modification or equivalent arrangement made during the life of the application shall be covered by the application.

Claims

1. A mold deflector for manufacturing an aerosol-generating article, characterized in that, The mold flow guide plate comprises a plurality of discharge channels, and flow resistances of at least some of the plurality of discharge channels are different.

2. The mold guide of claim 1, wherein Cross-sectional areas of at least some of the discharge channels perpendicular to the extending direction are different.

3. The mold guide of claim 2, wherein, The number of the discharge channels is at least three, and each of the discharge channels extends through the mold flow guide plate along opposite sides in a first direction; Each of the discharge channels is arranged along a second direction perpendicular to the first direction, and cross-sectional areas of each of the discharge channels gradually increase from the middle to the sides along the second direction; or The mold flow guide plate comprises a plurality of flow guide regions arranged along a second direction perpendicular to the first direction, each of the flow guide regions is provided with the discharge channels, and the number of the discharge channels in at least one of the flow guide regions is greater than one; the cross-sectional areas of the discharge channels in the same flow guide region are the same, and the cross-sectional areas of the discharge channels in different flow guide regions gradually increase from the middle to the sides along the second direction.

4. The mold guide of any of claims 1-3, wherein, Lengths of at least some of the discharge channels along the extending direction are different.

5. The mold guide of claim 4, wherein, The number of the discharge channels is at least three, and each of the discharge channels extends through the mold flow guide plate along opposite sides in a first direction; Each of the discharge channels is arranged along a second direction perpendicular to the first direction, and the length of each of the discharge channels gradually decreases from the middle to the sides along the second direction; or The mold flow guide plate comprises a plurality of flow guide regions arranged along a second direction perpendicular to the first direction, each of the flow guide regions is provided with the discharge channels, and the number of the discharge channels in at least one of the flow guide regions is greater than one; the length of the discharge channels in the same flow guide region is the same, and the length of the discharge channels in different flow guide regions gradually decreases from the middle to the sides along the second direction.

6. The mold guide of claim 4, wherein, Each of the discharge channels extends through the mold flow guide plate along opposite sides in a first direction, and the mold flow guide plate comprises a plate body and a boss protruding from one side of the plate body along the first direction; the boss comprises a first section and two second sections respectively located on opposite sides of the first section along a second direction perpendicular to the first direction; the first section and each of the second sections are provided with the discharge channels; the boss has a thickness dimension protruding from the plate body, and the thickness dimension of each of the second sections gradually decreases in a direction away from the first section along the second direction; The first section is of an equal thickness structure, and the thickness dimension of the first section is greater than or equal to the maximum thickness dimension of the second sections; or The thickness dimension of the first section gradually decreases from the middle to the sides along the second direction, and the minimum thickness dimension of the first section is greater than or equal to the maximum thickness dimension of the second sections.

7. The mold guide of claim 4, wherein Each of the discharge channels is arranged on opposite sides of the mold flow guide plate in a first direction, the mold flow guide plate comprises a plate body and a boss protruding from one side of the plate body in the first direction, the boss comprises at least three equal-thickness segments arranged in a second direction perpendicular to the first direction, the same equal-thickness segment has the same thickness dimension protruding from the plate body, the thickness dimensions of different equal-thickness segments gradually decrease from the middle to both sides along the second direction, and each of the equal-thickness segments is provided with the discharge channel.

8. The mold guide of any of claims 1-3, wherein, The discharge channel comprises a first sub-segment and a second sub-segment, the first sub-segment is located upstream of the second sub-segment in the material flow direction, the cross-sectional area of the first sub-segment gradually increases from one end away from the second sub-segment to one end close to the second sub-segment, and the second sub-segment has an equal cross-section structure; or, The cross-sectional area of the discharge channel gradually decreases in the material flow direction.

9. The mold guide of any of claims 1-3, wherein, A plurality of the discharge channels are arranged in multiple rows, and adjacent two rows of the discharge channels are aligned or staggered.

10. The mold guide of any of claims 1-3, wherein, The discharge channel extends in a straight line; or, The discharge channel has a curved shape with a curvature not equal to 0 in at least part of the extension direction.

11. An extrusion die for manufacturing an aerosol-generating article, characterized in that, Comprise: The mold flow guide plate according to any one of claims 1-10; A mold core corresponding to the discharge channel, and each of the mold cores is arranged downstream of the corresponding discharge channel in the material flow direction.

12. The extrusion die of claim 11, wherein, The extrusion die comprises a mold core mounting plate, the mold core mounting plate has mounting holes corresponding to the discharge channels, and each of the mold cores is arranged in the corresponding mounting hole.

13. The extrusion die of claim 11 or 12, wherein, At least part of the mold cores are arranged eccentrically with the corresponding discharge channels.

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