CN220348665U

CN220348665U - Forming die of porous ceramic matrix

Info

Publication number: CN220348665U
Application number: CN202321698134.6U
Authority: CN
Inventors: 刘斌; 宋文正; 肖小朋; 聂革; 赵贯云; 赵波洋
Original assignee: Shenzhen Woody Vapes Technology Co Ltd
Current assignee: Shenzhen Woody Vapes Technology Co Ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2024-01-16
Anticipated expiration: 2033-06-30

Abstract

The utility model discloses a forming die of a porous ceramic matrix, which comprises: the front mould is provided with a first runner for injecting ceramic slurry; and the rear mould is provided with at least two second flow passages and at least two forming cavities, the at least two second flow passages are respectively communicated with the first flow passages, and the at least two forming cavities are respectively in one-to-one correspondence and are communicated with the at least two second flow passages. The porous ceramic matrix is obtained by one-step molding by the molding die, and the whole ceramic matrix can be cut by a subsequent cutting process to obtain a plurality of single porous ceramic matrixes, so that the production efficiency of the porous ceramic matrixes can be improved. In addition, because the porous ceramic matrix of a whole piece is obtained by molding, the whole piece can be placed on the jig when the heating film printing process is carried out, and the single porous ceramic matrix is not required to be repeatedly placed on the jig, so that the labor force can be saved, and the production efficiency is improved.

Description

Forming die of porous ceramic matrix

Technical Field

The utility model relates to the technical field of atomizing cores, in particular to a forming die of a porous ceramic matrix.

Background

At present, the existing tobacco oil atomization products in the market mainly comprise cotton cores and ceramic cores, the cotton core atomization products mainly adopt a method of wrapping corrosion sheets with oil-guiding cotton to realize conduction and heating of tobacco oil, and the tobacco oil atomization products have the advantages of simplicity in processing and manufacturing, good taste reduction degree and the like. The ceramic core atomization product is mainly prepared into an oil guide body by using ceramic powder through a high-temperature sintering process, a heating film is prepared on a ceramic atomization surface through a thick film screen printing process, and the ceramic core atomization product and the heating film are combined through high-temperature sintering to prepare a complete atomization core, so that the oil guide atomization function is realized, and the oil guide body has the advantages of fine smoke, long service life, high automation rate and the like.

However, the porous ceramic matrix of the existing ceramic atomized core product is usually produced by single injection molding, and the yield of injection molding is low because of single injection molding. In addition, when the atomization core is degreased and sintered, the atomization core is singly placed on a corresponding mold to print a heating film, and the production efficiency is lower because the atomization core is singly placed.

Disclosure of Invention

The utility model mainly aims to provide a forming die for a porous ceramic matrix, and aims to solve the technical problems of low yield and low production efficiency of the existing porous ceramic atomization core product.

In order to achieve the above object, the present utility model provides a forming mold for a porous ceramic substrate, comprising:

the front mold is provided with a first runner for injecting ceramic slurry, and the first runner penetrates through two opposite sides of the front mold along the thickness direction of the front mold;

the rear mould is provided with at least two second flow passages and at least two forming cavities, the at least two second flow passages are respectively communicated with the first flow passages, the at least two second flow passages and the at least two forming cavities extend along the width direction of the rear mould, the at least two forming cavities are respectively in one-to-one correspondence and are communicated with the at least two second flow passages, and a finished product formed through the forming cavities can be divided into at least two single porous ceramic matrixes.

In some embodiments, the first flow channel gradually expands from an end of the front mold away from the rear mold toward an end near the rear mold.

In some embodiments, the second flow channel gradually expands from its end proximal to the first flow channel toward its end distal from the first flow channel.

In some embodiments, the second flow path is disposed at an incline, with an end of the second flow path adjacent the molding cavity being higher than an end of the second flow path adjacent the first flow path.

In some embodiments, a third flow passage for receiving cold material is further provided on the rear mold, the third flow passage penetrates through one face of the rear mold close to the front mold and extends in the thickness direction of the rear mold, and the third flow passage is respectively communicated with the first flow passage and the at least two second flow passages.

In some embodiments, the front mold is further provided with at least two convex plates for forming a parting line on the finished product, and each convex plate is respectively positioned between a forming cavity and a second flow passage.

In some embodiments, an ejection mechanism is further provided on the rear mold for ejecting the molded product from the rear mold.

In some embodiments, the ejection mechanism comprises a top plate, a plurality of ejector rods vertically arranged on the top plate and a reset assembly, wherein one ends of the ejector rods respectively penetrate through bottom walls of at least two molding cavities.

In some embodiments, the rear mold is further provided with a fixing mechanism for fixing the finished product, and the fixing mechanism is in connection fit with the finished product when the finished product is formed so as to prevent the finished product from being separated from the rear mold when the die is opened.

In some embodiments, the fixing mechanism is a pull rod disposed on the top plate, one end of the pull rod away from the top plate is provided with a reverse hook structure, and one end of the pull rod away from the top plate penetrates into the third flow passage.

Compared with the prior art, the embodiment of the utility model has the beneficial technical effects that:

the porous ceramic matrix is obtained by one-step molding by the molding die, and the whole ceramic matrix can be cut by a subsequent cutting process to obtain a plurality of single porous ceramic matrixes, so that the production efficiency of the porous ceramic matrixes can be improved. In addition, because the porous ceramic matrix of a whole piece is obtained by molding, the whole piece can be placed on the jig when the heating film printing process is carried out, and the single porous ceramic matrix is not required to be repeatedly placed on the jig, so that the labor force can be saved, and the production efficiency is improved.

The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural view of a forming mold for a porous ceramic substrate according to an embodiment of the present utility model;

fig. 2 is a schematic structural view of a molding cavity of a molding mold for a porous ceramic substrate according to an embodiment of the present utility model;

FIG. 3 is a schematic view of the structure of the front mold of the forming mold of the porous ceramic substrate according to the embodiment of the present utility model;

fig. 4 is a schematic perspective view of a rear mold of a forming mold for a porous ceramic substrate according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a molded green sheet of a molding die for a porous ceramic substrate according to an embodiment of the present utility model;

fig. 6 is a schematic perspective view of a molded green sheet of a molding die for a porous ceramic substrate according to an embodiment of the present utility model.

Reference numerals illustrate:

11. a front mold; 101. a first flow passage; 102. a convex plate; 12. a first template; 13. a positioning ring; 21. a rear mold; 201. a second flow passage; 202. a third flow passage; 211. a molding cavity; 22. a second template; 23. a first support block; 24. a second support block; 25. a guide post; 3. an ejection mechanism; 31. a top plate; 311. a cover plate; 312. a bottom plate; 32. a push rod; 33. a reset assembly; 4. embryo pieces; 51. a first nozzle material; 52. and a second nozzle material.

Detailed Description

In order to further describe the technical means and effects adopted for achieving the preset aim of the utility model, the following detailed description refers to the specific implementation, structure, characteristics and effects according to the application of the utility model with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 6, an embodiment of the present utility model provides a molding die for a porous ceramic substrate, including:

a front mold 11 provided with a first flow passage 101 for injecting ceramic slurry, the first flow passage 101 penetrating opposite sides of the front mold 11 in a thickness direction of the front mold 11;

the rear mold 21 is provided with at least two second runners 201 and at least two forming cavities 211, the at least two second runners 201 are respectively communicated with the first runners 101, the at least two second runners 201 and the at least two forming cavities 211 extend along the width direction of the rear mold 21, the at least two forming cavities 211 are respectively in one-to-one correspondence and are communicated with the at least two second runners 201, and a finished product formed through the forming cavities 211 can be divided into at least two single porous ceramic matrixes.

The existing atomization core product adopts a mode of respectively and independently injection molding a plurality of single porous ceramic matrixes, the injection molding yield is low, the efficiency of tray filling during degreasing and sintering is low, only single porous ceramic matrixes can be placed, the single porous ceramic matrixes are required to be placed to corresponding jigs for printing during heating film printing, the labor consumption is high, the fatigue is easy, and the automation cost is high.

In this embodiment, the forming mold of the porous ceramic substrate may include a front mold 11 and a rear mold 21 adapted to the front mold 11, specifically, the front mold 11 is provided with a first flow channel 101 for injecting ceramic slurry, and the first flow channel 101 penetrates opposite sides of the front mold 11 along the thickness direction of the front mold 11 (the direction indicated by the arrow in fig. 1);

the rear mold 21 is provided with at least two second runners 201 and at least two forming cavities 211, specifically, at least two forming cavities 211 can be arranged on the side surface of the rear mold 21 facing the front mold 11, at least two second runners 201 are respectively communicated with the first runners 101, at least two second runners 201 and at least two forming cavities 211 extend along the width direction of the rear mold 21, at least two forming cavities 211 are respectively corresponding to and communicated with at least two second runners 201 one by one, a finished product obtained by forming the forming cavities 211 can be divided into at least two single porous ceramic matrixes, specifically, a finished product obtained by forming the forming cavities 211 is a large-sized blank 4 as shown in fig. 4-6, the large-sized blank 4 formed by the forming cavities 211 can be divided into at least two porous ceramic matrixes, and the porous ceramic matrixes can be manufactured into porous ceramic atomized cores. The embodiment can adopt the steps of degreasing and sintering the large-sized blank 4, printing a heating film, then carrying out back firing, and finally cutting the printed large-sized blank 4 to obtain the finished ceramic atomized core, so that a single porous ceramic matrix is not required to be placed on a corresponding jig for printing when the heating film is printed, the labor consumption is reduced, the automatic production is facilitated, and the cost of the automatic production is reduced.

Therefore, the forming die of the porous ceramic matrix of the embodiment enlarges the cavity area under the condition that the size of the integral frame of the die is unchanged, solves the problem of low production efficiency of the ceramic atomizing core and high labor cost, and improves the injection molding efficiency of the ceramic atomizing core and the printing efficiency of the heating film and the degreasing sintering loading capacity due to the quality stability problem caused by the artificial fatigue.

The manufacturing steps of the ceramic atomizing core in the embodiment are as follows:

s1: drying the granulated ceramic raw material for standby;

s2: installing a forming die of the porous ceramic matrix on an injection molding machine, and preliminarily adjusting the die opening stroke and the ejection stroke of the die;

s3: adding the dried ceramic raw material into a hopper of an injection molding machine, and setting injection molding process parameters;

s4: semi-automatic injection molding is further carried out, and full-automatic production is carried out after the large-sized blank 4 is sent to be qualified;

s5: further degreasing and sintering to obtain a sintered large-sized blank 4;

s6: further printing a heating film on the burned large-sized blank 4, and then performing back firing to obtain the large-sized blank 4 with the printed heating film;

s7: and cutting the printed large green sheet 4 to obtain the ceramic atomization core.

The forming cavity 211 has a pattern corresponding to the ceramic atomizing core, and different patterns can be customized to meet different design requirements.

The porous ceramic matrix has the corresponding dimensions of 10mm, 3mm and 2mm in length, width and height, and is subjected to degreasing sintering treatment, heating film printing and back firing to obtain the ceramic atomizing core.

The blank 4 has the corresponding dimensions of 50mm, 50mm and 2mm respectively, and the blank 4 is an integral large blank 4 comprising a plurality of porous ceramic matrixes, so that the method can be better applied to the manufacturing step flow of the ceramic atomizing core in the embodiment.

In some embodiments, the first flow channel 101 gradually expands from an end of the front mold 11 away from the rear mold 21 toward an end near the rear mold 21; this structure can form certain draft angle, and convenient drawing of patterns, and when the shaping was accomplished, front mould 11 and back mould 21 separation, the product was to keep on back mould 21, and when the die sinking, front mould 11 gradually upwards moved, and the interval between first runner 101 and first mouth of a river material 51 (as shown in fig. 6, first mouth of a river material 51 is the waste material that forms in first runner 101) is bigger and bigger, avoids both to take place the friction when the drawing of patterns, leads to the product that the shaping obtained to break away from back mould 21.

In some embodiments, the second flow channel 201 is gradually enlarged from one end thereof close to the first flow channel 101 to one end thereof far from the first flow channel 101, and the structure can form a certain draft angle so as to facilitate demolding.

In some embodiments, the second flow channel 201 is disposed obliquely, and an end of the second flow channel 201 near the forming cavity 211 is higher than an end of the second flow channel 201 near the first flow channel 101; when the slurry is injected, a plurality of layers, at least two layers, one of which is a solidified layer and the second of which is a flowing layer flowing in the middle, are formed, so that the deeper the molding cavity of the second flow channel 201 is, the larger the space in which the middle can flow is, the faster the flow speed is, and the pressure when the slurry is injected from the outside can be reduced. In addition, the shallower the second runner 201 near one end of the forming cavity 211, the thinner the connection between the second gate material 52 (as shown in fig. 6, the second gate material 52 is the waste material formed in the second runner 201) and the product, facilitating cutting.

In some embodiments, a third runner 202 for receiving cold material is further provided on the rear mold 21, the third runner 202 penetrates through one surface of the rear mold 21 close to the front mold 11 and extends along the thickness direction of the rear mold 21, and the third runner 202 is respectively communicated with the first runner 101 and at least two second runners 201; when the slurry is injected from the first flow channel 101, there may be some slurry with a temperature not raised to a preset temperature, so that the material in the front part is usually injected into the third flow channel 202 first, so as to avoid the problem that cold material enters the forming cavity 211, and improve the product quality.

In some embodiments, at least two convex plates 102 for forming parting lines on the finished product are further disposed on the front mold 11, each convex plate 102 is located between a forming cavity 211 and a second flow channel 201, and the convex plates 102 can form parting lines between the second nozzle material 52 and the product, so as to facilitate cutting.

In some embodiments, the rear mold 21 is further provided with an ejection mechanism 3 for ejecting the molded product from the rear mold 21.

Specifically, the forming die of the porous ceramic matrix further comprises a first template 12 and a second template 22, the first template 12 is arranged on one side, far away from the rear die 21, of the front die 11, the first template 12 is used for fixing the front die 11, the second template 22 is arranged on one side, far away from the front die 11, of the rear die 21, the second template 22 is used for fixing the rear die 21, the first template 12 is provided with a filling hole communicated with a runner, the filling hole is used for guiding molten ceramic liquid injected by an injection molding machine to the runner, when the forming die of the porous ceramic matrix is installed on the injection molding machine, the first template 12 and the second template 22 are both installed on the injection molding machine, the front die 11 is fixed on the injection molding machine through the first template 12, the rear die 21 is fixed on the injection molding machine through the second template 22, and the injection molding machine drives the first template 12 and the second template 22 to relatively move to realize die opening and die closing;

a first supporting block 23 and a second supporting block 24 are erected between the second template 22 and the rear mold 21 side by side and at intervals, an installation space can be constructed between the first supporting block 23 and the second supporting block 24, an ejection mechanism 3 capable of ejecting the blank 4 formed by the forming cavity 211 during mold opening is arranged in the installation space between the first supporting block 23 and the second supporting block 24, and the large-sized blank 4 formed by the forming cavity 211 is ejected during mold opening through the ejection mechanism 3.

In some embodiments, the ejection mechanism includes a top plate 31, a plurality of ejector rods 32 vertically disposed on the top plate 31, and a reset assembly 33, one end of each of the plurality of ejector rods penetrates the bottom walls of at least two molding cavities 211.

Specifically, the top plate 31 is connected with a driving mechanism of the injection molding machine, the ejector rod 32 is provided with a fixing part and a push rod, one surface of the push rod, far away from the molding cavity 211, of the rear mold 21 penetrates through the molding cavity 211, one end, far away from the fixing part, of the push rod is matched with the inner wall of the molding cavity 211, one end, far away from the fixing part, of the push rod is prevented from affecting the molding effect, the reset assembly 33 can be a spring, the reset assembly 33 is sleeved on the push rod, the push rod can be reset when the mold is closed, the fixing part is fixedly arranged on the top plate 31, and when the mold is opened, the driving mechanism of the injection molding machine pushes the top plate 31 to enable the push rod to eject the blank 4 in the molding cavity 211.

In some embodiments, the top plate 31 includes a cover plate 311 and a bottom plate 312, and the fixing portion is clamped between the cover plate 311 and the bottom plate 312, so that the fixing portion can be fixed.

In some embodiments, the rear mold 21 is further provided with a fixing mechanism for fixing the finished product, and the fixing mechanism is in connection and cooperation with the finished product when the finished product is formed so as to prevent the finished product from being separated from the rear mold 21 when the mold is opened.

In some embodiments, the fixing mechanism is a pull rod disposed on the top plate 31, an end of the pull rod away from the top plate 31 is provided with a barb structure, and an end of the pull rod away from the top plate penetrates into the third flow channel 202.

Specifically, the pull rod of the fixing mechanism may be one of the plurality of ejector rods 32, and since the end of the rod far away from the top plate 31 is provided with the inverted hook structure, the effect of fixing the finished product can be achieved when the die is opened, for example, when the finished product is formed, the bottom of the finished product, namely the cold material part, and the ejector rods 32 form the inverted hook structure, so that the effect of fixing the finished product is achieved. During ejection, the finished product can be ejected from the rear mold 21,

In some embodiments, the forming mold of the porous ceramic matrix further comprises a guide pillar 25, the second template 22 is provided with a fixing hole, the guide pillar 25 is arranged in the fixing hole, the rear mold 21 is provided with a through hole, the front mold 11 is provided with a guide hole, the guide pillar 25 sequentially extends into the guide hole through the through hole, and the guide pillar 25 guides the movement between the rear mold 21 and the front mold 11, so that the mold closing precision is improved; and/or, the side surface of the first template 12 far away from the front mould 11 is provided with a positioning ring 13, the positioning ring 13 and the filling hole are coaxially arranged, and the injection nozzle of the injection molding machine and the forming mould of the porous ceramic matrix are conveniently positioned through the positioning ring 13.

The embodiment of the utility model discloses a forming die of a porous ceramic matrix, which comprises: a front mold 11 provided with a first flow passage 101 for injecting ceramic slurry, the first flow passage 101 penetrating opposite sides of the front mold 11 in a thickness direction of the front mold 11; the utility model discloses a method for manufacturing a finished product, which comprises the steps of forming a finished product, namely, a large-sized green ceramic blank 4 of a finished product formed by the forming cavity 211, namely, the production efficiency of the porous ceramic matrix is improved, the finished product can be divided into at least two single porous ceramic matrixes by the forming cavity 211, the porous ceramic matrixes can be manufactured into porous ceramic atomized cores, the depth of the forming cavity 211 is the same as that of the forming cavity 211 in an injection molding mode of directly adopting a plurality of single porous ceramic matrixes, the projection area of the forming cavity 211 in the depth direction is the same as that of the forming cavity formed by the single porous ceramic matrixes, and on the premise that the projection area of the forming cavity 211 in the depth direction is the same as that of the forming cavity formed by the single porous ceramic matrixes, the number of the finished product is increased.

On the premise of no conflict, the technical features can be freely combined and overlapped.

While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. A porous ceramic matrix forming die, comprising:

a front mold (11) provided with a first runner (101) for injecting ceramic slurry, wherein the first runner (101) penetrates through two opposite surfaces of the front mold (11) along the thickness direction of the front mold (11);

the rear mould (21) is provided with at least two second flow passages (201) and at least two forming cavities (211), the at least two second flow passages (201) are respectively communicated with the first flow passages (101), the at least two second flow passages (201) and the at least two forming cavities (211) extend along the width direction of the rear mould (21), the at least two forming cavities (211) are respectively in one-to-one correspondence and are communicated with the at least two second flow passages (201), and a finished product formed by the forming cavities (211) can be divided into at least two single porous ceramic matrixes.

2. The porous ceramic matrix molding die according to claim 1, wherein the first runner (101) gradually expands from an end of the front die (11) away from the rear die (21) toward an end near the rear die (21).

3. The porous ceramic matrix forming die according to claim 1 or 2, wherein the second runner (201) gradually enlarges from its end close to the first runner (101) toward the end far from the first runner (101).

4. A porous ceramic matrix forming die according to claim 3, characterized in that the second runner (201) is arranged obliquely, and the end of the second runner (201) close to the forming cavity (211) is higher than the end of the second runner (201) close to the first runner (101).

5. The forming die of a porous ceramic matrix according to claim 1, wherein a third runner (202) for receiving cold material is further provided on the rear die (21), the third runner (202) penetrates through one surface of the rear die (21) close to the front die (11) and extends along the thickness direction of the rear die (21), and the third runner (202) is respectively communicated with the first runner (101) and at least two second runners (201).

6. The porous ceramic matrix forming mold according to claim 1, wherein the front mold (11) is further provided with at least two convex plates (102) for forming parting lines on the finished product, and each convex plate (102) is respectively located between one forming cavity (211) and one second runner (201).

7. The porous ceramic matrix forming die according to claim 5, wherein an ejection mechanism (3) for ejecting the formed finished product from the rear die (21) is further provided on the rear die (21).

8. The porous ceramic matrix forming die according to claim 7, wherein the ejection mechanism (3) comprises a top plate (31), a plurality of ejector rods (32) vertically arranged on the top plate (31) and a reset assembly (33), and one ends of the ejector rods (32) respectively penetrate through bottom walls of at least two forming cavities (211).

9. The porous ceramic matrix forming die according to claim 8, wherein the rear die (21) is further provided with a fixing mechanism for fixing a finished product, the fixing mechanism being in connection with the finished product when the finished product is formed so as to prevent the finished product from being separated from the rear die (21) when the die is opened.

10. The porous ceramic matrix forming die according to claim 9, wherein the fixing mechanism is a pull rod arranged on the top plate (31), one end of the pull rod, which is far away from the top plate (31), is provided with a reverse hook structure, and one end of the pull rod, which is far away from the top plate (31), penetrates into the third runner (202).