CN111134373A - Injection molding heating assembly, injection mold and injection molding method - Google Patents
Injection molding heating assembly, injection mold and injection molding method Download PDFInfo
- Publication number
- CN111134373A CN111134373A CN202010044946.3A CN202010044946A CN111134373A CN 111134373 A CN111134373 A CN 111134373A CN 202010044946 A CN202010044946 A CN 202010044946A CN 111134373 A CN111134373 A CN 111134373A
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- Prior art keywords
- base
- heating element
- heating
- injection molding
- injection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 147
- 238000001746 injection moulding Methods 0.000 title claims abstract description 47
- 238000002347 injection Methods 0.000 title claims abstract description 15
- 239000007924 injection Substances 0.000 title claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000002002 slurry Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 12
- 238000000465 moulding Methods 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000003566 sealing material Substances 0.000 claims description 2
- 230000000391 smoking effect Effects 0.000 abstract description 12
- 235000019504 cigarettes Nutrition 0.000 abstract description 7
- 239000004696 Poly ether ether ketone Substances 0.000 description 7
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 7
- 229920002530 polyetherether ketone Polymers 0.000 description 7
- 238000009413 insulation Methods 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention belongs to the technical field of novel smoking set heating elements, and particularly relates to an injection molding heating assembly, an injection mold for the heating assembly and an injection molding method. The heating component comprises a heating body (1) and a base (2); wherein the heating element (1) comprises a heating element shell and a heating circuit arranged in the heating element shell, and the tail end of the heating circuit is provided with a heating circuit pin (4) protruding out of the heating element shell; the lower part of the heating element (1) is annularly and fixedly held by the base (2), and a contact part of the heating element (1) and the base (2) has no gap; the heating circuit pin (4) is exposed outside the base (2). The invention also discloses an injection mold and an injection molding method for the heating assembly. The invention designs the base and the heating element formed by injection molding of the heating element for the first time, can realize the sealing of the joint of the heating element and the base, prevent the residues of the smoked cigarettes from permeating downwards, and improve the service performance of the smoking set.
Description
Technical Field
The invention belongs to the technical field of novel smoking set heating elements, and particularly relates to an injection molding heating assembly, an injection mold for the heating assembly and an injection molding method.
Background
In the field of heating cigarette smoking sets, a heating assembly which is mostly used in current research or products comprises a heating element and a base for fixing the heating element, wherein the base is provided with a through hole for the heating element to pass through, and the shape of the through hole is generally matched with the shape of the heating element, and can be any shape such as a circle, a rectangle, a slit and the like. The heating body and the base have different material requirements. The heating element is made of a material having good thermal conductivity and high strength, and is not easily bent, such as metal or ceramic. The base of the heating body is required to be made of insulating materials, and the heat insulation effect is good. Therefore, the heating element and the base are generally prepared separately and independently, and when used, the heating element and the base are connected. Moreover, the connected mode between them is mostly interlude formula machinery concatenation or pressfitting, and this need not to make the gap appear between the base of heat-generating body and the heat-generating body, and along with live time's extension, the residue after the heating cigarette suction, like tar will permeate heat-generating body base below, further corrodes control panel or other parts.
Therefore, it is desirable to provide a solution to the problem of the infiltration of the residue of the composite heat generating body downward during the suction.
Disclosure of Invention
The present invention has been made to solve the above problems.
A first aspect of the present invention provides an injection molded heat generating component, comprising: a heating element 1 and a base 2;
wherein: the heating element 1 comprises a heating element shell and a heating line arranged in the heating element shell, wherein the tail end of the heating line is provided with a heating line pin 4 protruding out of the heating element shell;
the lower part of the heating element 1 is annularly and fixedly held by the base 2, and the contact part of the heating element 1 and the base 2 has no gap;
the heating line pin 4 is exposed outside the base 2.
The heating line pin 4 is connected with a power supply to provide electric power required by heating, and can be used for measuring the temperature of the heating element and playing a role in transmitting a control signal.
Preferably, the contact portion between the heating element 1 and the base 2 is sealed only by the close contact between the heating element 1 and the base 2 without any additional sealing material or sealing member.
Preferably, the base 2 is a cylinder, a sealing ring groove 5 is arranged on the outer peripheral surface of the base, and a sealing ring is arranged in the sealing ring groove 5. The sealing ring is used for preventing cigarette residues from permeating downwards from the outer edge of the base 2.
Preferably, the circumferential edge of the base 2 is provided with a positioning slot 21. The positioning groove 21 is used for guiding and positioning the heating body 1, so that the installation positions and the directions in different smoking sets are kept consistent.
Preferably, the bottom of the base 2 is further provided with a fixing column 3. The fixing column 3 is used for fixing the heating component to the part of the smoking set.
Preferably, a portion of the heat-generating body 1 surrounded by the base 2 is provided with a projection.
Preferably, the heat generator housing is selected from metal or ceramic, and has good thermal conductivity. The heating circuit can generate a stable heat source to heat the smoking article to generate smoke for human body smoking. When the material of the outer shell of the heating element is metal, the outer shell is insulated from the heating circuit and the heating circuit pin 4. The insulation means may be an insulation layer provided at the contact position of the two.
Preferably, the base 2 is selected from a material that does not deform at 320 degrees celsius.
Preferably, the heating element 1 further includes a temperature measurement line, and the temperature measurement pin is also the heating line pin 4.
The heating element 1 has a rod-like or sheet-like structure with a tip. The heating body 1 can adopt any existing smoking set heating body or heating sheet.
Preferably, the base 2 is selected from a material that does not deform at 320 degrees celsius, i.e. a material that withstands a temperature of 320 degrees celsius.
Preferably, the base 2 is made of a high temperature resistant material, the high temperature resistance is the temperature which can be borne by the heating element 1 at the working temperature, and the working temperature of the heating element 1 is 280-480 ℃. At this time, the temperature of the base 2 itself is about 200-320 ℃, and the base 2 is selected from materials that do not deform at 200-320 ℃. The base 2 is preferably of PEEK material.
A second aspect of the present invention provides an injection mold for the heat generating component of the first aspect, the mold comprising: a mould base 7, a heating element placing part 6, a base forming part 8 and an injection molding pipeline 9;
a heating element placing part 6 is arranged on the die base 7, and the size and the shape of the heating element placing part are matched with the size of the heating element 1; the mould base 7 is also provided with a base forming part 8 which is arranged below the heating element placing part 6, is communicated with the heating element placing part 6 through fluid and has the same size and shape as the base 2;
the injection moulding duct 9 is in fluid communication with the base formation 8.
The die base 7 is a supporting body of the whole die, and is made of a material with a high density, such as stainless steel, T10, CrWMn, Cr12MoV, T8 and the like.
The base molding part 8 is provided with a herringbone injection molding pipeline 9 beside the base molding part 8, the base molding part 8 is communicated with the injection molding pipeline 9, and the herringbone injection molding pipeline 9 is used for inputting injection molding slurry into the base molding part 8.
A third aspect of the present invention provides an injection molding method for a heat generating component according to the first aspect, using the injection mold according to the second aspect, comprising the steps of:
the heating element 1 containing the heating line and the heating line pins 4 is placed on the heating element placing part 6, then prepared injection molding slurry is sent into the injection molding pipeline 9, the injection molding slurry enters the base forming part 8 along the injection molding pipeline 9, the base forming part 8 is filled with the injection molding slurry, and the injection molding slurry is cooled and taken out to obtain the heating assembly of the first aspect.
Preferably, the temperature of the base 2 during injection molding is 380-400 ℃.
The technical scheme can be freely combined on the premise of no contradiction.
The invention has the following beneficial effects:
1. in the prior art, the base and the heating element are generally prepared separately and independently. The invention designs the heating element with the base and the heating body integrally formed for the first time, the base and the heating body are integrally formed in a mode of injection molding the base in the mold, the sealing of the joint of the heating body and the base can be realized, the situation that the smoked cigarette residues permeate downwards is prevented, the parts below the base of the heating body are better protected, and the use performance of the smoking set is improved.
2. In the preferred technical scheme, the base is a concave cylinder, a sealing ring groove is formed in the concave part in the middle of the base, a sealing ring is arranged in the sealing ring groove, so that cigarette residues can be prevented from permeating downwards from the outer edge of the base, and the sealing effect of the base is further improved.
3. Compared with the technology of independently preparing the heating body and the base and then splicing or pressing. The invention has simple preparation process and good sealing durability of the heating element and the base.
Drawings
Fig. 1 is a schematic view of the entire structure of a heating element according to embodiment 1.
FIG. 2 is a schematic structural view of an injection mold according to embodiment 2.
The reference signs are:
1-heating element, 2-base, 3-fixed column, 4-heating circuit pin/temperature measuring pin, 5-sealing ring groove, 21-positioning groove, 6-heating element placing part, 7-mould base, 8-base forming part and 9-injection moulding pipeline.
Detailed Description
The present invention will be further described with reference to the following embodiments.
Example 1
A heating component for molding a base through in-mold injection is shown in figure 1 and mainly comprises a heating body 1, a base 2, a fixing column 3, a temperature measuring pin and a heating circuit pin 4.
Wherein: the heating element 1 comprises a heating element shell and a heating line arranged in the heating element shell, wherein the tail end of the heating line is provided with a heating line pin 4 protruding out of the heating element shell;
the lower part of the heating element 1 is annularly and fixedly held by the base 2, and the contact part of the heating element 1 and the base 2 has no gap;
the heating line pin 4 is exposed outside the base 2.
The heating body 1 comprises a temperature measuring circuit and a heating circuit, the heating body shell is made of ceramic materials, and the heating body 1 can generate a stable heat source to heat a smoking article to generate smoke for the suction of a human body.
The base 2 is formed by injection molding in a PEEK material die and can endure the temperature within 300 ℃ for a long time.
The base 2 is a cylinder concave type, a sealing ring groove 5 is arranged in the middle of the base 2 and used for placing a sealing ring and preventing cigarette residues from permeating downwards from the outer edge of the base 2.
The edge of base 2 is equipped with constant head tank 21 along vertical direction for to the heating body guiding orientation, make mounted position and direction keep unanimous in different smoking set.
And the fixing column 3 is used for stabilizing the heating body, so that the heating body is not easy to shake during installation.
Example 2
An injection mold for a heating element according to embodiment 1 mainly includes a mold base 7, a heating element placement portion 6, a base molding portion 8, and an injection molding pipe 9. See fig. 2.
The die base 7 is a bearing body of the whole die and is made of stainless steel.
A heating element placing part 6 is arranged on the die base 7, and the size of the heating element placing part is matched with that of the heating element 1; the mould base 7 is also provided with a base forming part 8 which is arranged below the heating element placing part 6 and is communicated with the heating element placing part 6 in a fluid way, and the size and the shape of the base forming part are consistent with those of the base 2.
The base molding part 8 is provided with a herringbone injection molding pipeline 9 beside the base molding part 8, the base molding part 8 is communicated with the injection molding pipeline 9, and the herringbone injection molding pipeline 9 is used for inputting injection molding slurry into the base molding part 8. The injection molding temperature of the base 2 was 380 ℃.
The injection molding pipeline 9 is a rubber pipe capable of resisting the high temperature of 400 ℃.
Example 3
An injection molding method for the heat generating component described in embodiment 1, using the injection mold described in embodiment 2, wherein the injection molding process of the base 2 is as follows: putting the heating body 1 on the heating body placing part 6 in advance, then keeping the prepared PEEK slurry at the temperature of 380 ℃ and sending the prepared PEEK slurry into the inverted Y-shaped injection molding pipeline 9, enabling the injection molding PEEK to enter the base forming part 8 along the injection molding pipeline 9, filling the base forming part 8 with the PEEK slurry, and then cooling and taking out the PEEK slurry to obtain the base integrally-formed heating body.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An injection molded heating element, comprising: a heating element (1) and a base (2);
wherein: the heating element (1) comprises a heating element shell and a heating circuit arranged in the heating element shell, wherein the tail end of the heating circuit is provided with a heating circuit pin (4) protruding outside the heating element shell;
the lower part of the heating element (1) is annularly and fixedly held by the base (2), and a contact part of the heating element (1) and the base (2) has no gap;
the heating circuit pin (4) is exposed outside the base (2).
2. The heat generating component according to claim 1, wherein the contact portion of the heat generating body (1) and the base (2) is sealed only by the close contact of the heat generating body (1) and the base (2) without any additional sealing material or sealing member.
3. The heating assembly according to claim 1, wherein the base (2) is a cylinder, a sealing ring groove (5) is formed on the outer peripheral surface of the base, and a sealing ring is arranged in the sealing ring groove (5).
4. The heating assembly according to claim 1, characterized in that the circumferential edge of the base (2) is provided with positioning slots (21).
5. The heating assembly according to claim 1, wherein the bottom of the base (2) is further provided with a fixing post (3).
6. The heat generating component according to claim 1, characterized in that a portion of the heat generating body (1) surrounded by the base (2) is provided with a projection.
7. The heating assembly of claim 1 wherein said heater housing is selected from metal or ceramic.
8. The heating element according to claim 1, characterized in that the base (2) is selected from a material that does not deform at 320 degrees celsius.
9. An injection mold for the heat-generating component of claim 1, wherein the mold comprises: a mould base (7), a heating element placing part (6), a base forming part (8) and an injection molding pipeline (9);
a heating element placing part (6) is arranged on the die base (7), and the size and the shape of the heating element placing part are matched with the size of the heating element (1); the mould base (7) is also provided with a base forming part (8) which is arranged below the heating element placing part (6) and is communicated with the fluid of the heating element placing part (6), and the size and the shape of the base forming part are consistent with those of the base (2);
the injection molding pipeline (9) is in fluid communication with the base molding part (8).
10. An injection molding method for the heat generating component according to claim 1, wherein the injection mold according to claim 9 is used, comprising the steps of:
placing a heating element (1) comprising the heating circuit and the heating circuit pin (4) on the heating element placing position (6), then sending prepared injection molding slurry into the injection molding pipeline (9), enabling the injection molding slurry to enter the base forming position (8) along the injection molding pipeline (9), filling the base forming position (8) with the injection molding slurry, cooling and taking out to obtain the heating assembly as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010044946.3A CN111134373A (en) | 2020-01-15 | 2020-01-15 | Injection molding heating assembly, injection mold and injection molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010044946.3A CN111134373A (en) | 2020-01-15 | 2020-01-15 | Injection molding heating assembly, injection mold and injection molding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111134373A true CN111134373A (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010044946.3A Pending CN111134373A (en) | 2020-01-15 | 2020-01-15 | Injection molding heating assembly, injection mold and injection molding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111134373A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112790441A (en) * | 2020-12-30 | 2021-05-14 | 深圳市基克纳科技有限公司 | Heating assembly of atomizing device |
| WO2021232250A1 (en) * | 2020-05-19 | 2021-11-25 | 深圳市华诚达精密工业有限公司 | Heating device and manufacturing method therefor, and heat-not-burn cigarette |
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| CN109770434A (en) * | 2019-02-27 | 2019-05-21 | 深圳市博迪科技开发有限公司 | A kind of heater |
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| CN110621176A (en) * | 2017-05-26 | 2019-12-27 | 韩国烟草人参公社 | Heater unit and aerosol generating device provided with same |
| CN211746991U (en) * | 2020-01-15 | 2020-10-27 | 深圳市博迪科技开发有限公司 | Injection moulding's heating element and injection mold |
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2020
- 2020-01-15 CN CN202010044946.3A patent/CN111134373A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110621176A (en) * | 2017-05-26 | 2019-12-27 | 韩国烟草人参公社 | Heater unit and aerosol generating device provided with same |
| CN207630427U (en) * | 2017-12-26 | 2018-07-20 | 东莞市泽上塑胶电子有限公司 | A kind of rapid shaping hot runner mould |
| CN209152369U (en) * | 2018-10-12 | 2019-07-26 | 深圳市丽福科技有限责任公司 | Heat generating device and electronic cigarette |
| CN209788473U (en) * | 2018-11-28 | 2019-12-17 | 冉卫敏 | Heating element of electronic cigarette |
| CN109770434A (en) * | 2019-02-27 | 2019-05-21 | 深圳市博迪科技开发有限公司 | A kind of heater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021232250A1 (en) * | 2020-05-19 | 2021-11-25 | 深圳市华诚达精密工业有限公司 | Heating device and manufacturing method therefor, and heat-not-burn cigarette |
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