CN220008632U - Mold cavity bottom with heat insulation design - Google Patents
Mold cavity bottom with heat insulation design Download PDFInfo
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- CN220008632U CN220008632U CN202321379291.0U CN202321379291U CN220008632U CN 220008632 U CN220008632 U CN 220008632U CN 202321379291 U CN202321379291 U CN 202321379291U CN 220008632 U CN220008632 U CN 220008632U
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- heat insulation
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- mold cavity
- cavity bottom
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- 238000009413 insulation Methods 0.000 title claims abstract description 100
- 238000002347 injection Methods 0.000 claims abstract description 55
- 239000007924 injection Substances 0.000 claims abstract description 55
- 238000001816 cooling Methods 0.000 claims abstract description 29
- 238000005516 engineering process Methods 0.000 claims description 8
- 238000007493 shaping process Methods 0.000 claims description 8
- 238000010146 3D printing Methods 0.000 claims description 5
- 206010040844 Skin exfoliation Diseases 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 5
- 230000035618 desquamation Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 238000005266 casting Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The mold cavity bottom with the heat insulation design comprises a mold cavity bottom body, wherein an injection section and a molding area are sequentially arranged in the middle of the mold cavity bottom body along the axial direction, the mold cavity bottom body is provided with a cooling channel surrounding the outer side of the molding area, a heat insulation structure is arranged between the cooling channel and the injection section, the heat insulation structure at least comprises a circle of heat insulation channel, and the heat insulation channel is completely and hermetically arranged in the mold cavity bottom body; through set up thermal-insulated passageway between cooling channel and injection section, can separate the heat conduction of injection section to cooling channel through thermal-insulated structure, the heat conduction area between injection section and the cooling channel reduces, reduces the heat conduction speed of both to ensure that the temperature of hot runner nozzle and injection section can not be too low, avoid causing hot runner nozzle to block up, runner deckle edge and the at the bottom of the blank desquamation scheduling problem.
Description
Technical Field
The utility model belongs to the technical field of molds, and particularly relates to a mold cavity bottom with a heat insulation design.
Background
The inventor has developed a die cavity bottom of bottle base mould before, see the chinese patent document of patent application number 202021412351.0 in particular, including die cavity bottom body, the middle part of die cavity bottom body is equipped with die cavity injection section, pouring passageway and die cavity bottom shaping district in proper order along the axial, be equipped with the cooling channel on the die cavity bottom body, the cooling channel encircles pouring passageway and die cavity bottom shaping district outside setting, be equipped with at least one heat insulating groove in the die cavity injection section, the heat insulating groove encircles along the pouring passageway outside setting in the die cavity injection section, the degree of depth of heat insulating groove extends along the injection molding direction of pouring passageway, the heat insulating groove is located between cooling channel and the pouring passageway. The heat insulation groove is arranged in the injection section of the die cavity, and is positioned between the cooling channel and the pouring channel to play a role in reducing the heat conduction speed, so that the temperature of the hot runner nozzle and the pouring channel is ensured not to be too low, and the problems of blockage of the hot runner nozzle, casting burrs, peeling of the blank bottom and the like are avoided; after the cooling design can be conveniently enhanced, the cooling rate of the blank bottom is improved, and meanwhile, the heat insulation groove is utilized to ensure that the pouring channel has proper forming temperature, so that the forming period of bottle blanks is shortened, and the production efficiency is improved.
However, the heat insulation structure is limited by the processing technology before, the heat insulation groove can only be formed in the mold cavity injection section in a machining mode, and is communicated with the mold cavity injection section, and because the mold cavity bottom needs to be guaranteed to have certain structural strength, certain intervals are required to be kept between the heat insulation groove and the pouring channel and the mold cavity bottom forming area, so that certain wall thickness is guaranteed, the heat insulation groove cannot extend to a position close to the mold cavity bottom forming area during processing, and the heat insulation effect of the part of the mold cavity injection section close to the mold cavity bottom forming area is poor.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides a mold cavity bottom with a heat insulation design.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a die cavity end with thermal-insulated design, includes the die cavity end body, the middle part of die cavity end body is equipped with injection section and shaping district in proper order along the axial, the die cavity end body is equipped with the cooling channel around the shaping district outside, cooling channel with be provided with thermal-insulated structure between the injection section, thermal-insulated structure includes the thermal-insulated passageway of round at least, thermal-insulated passageway seals completely and sets up in the die cavity end body.
In the utility model, the injection section comprises a die cavity injection section and a pouring channel, and the heat insulation channel at least comprises a first heat insulation section which is arranged along the outer side of the pouring channel in a surrounding way.
In the utility model, the heat insulation channel at least comprises a second heat insulation section, and the second heat insulation section is arranged along the outer side of the die cavity injection section in a surrounding way.
In the utility model, the die cavity injection section comprises a pressure maintaining section and a pressurizing section, the second heat insulation section at least comprises a first heat insulation section and a second heat insulation section, the first heat insulation section is arranged along the outer side of the pressurizing section in a surrounding manner, and the second heat insulation section is arranged along the outer side of the pressure maintaining section in a surrounding manner.
In the utility model, the heat insulation structure comprises two or more circles of heat insulation channels, and the heat insulation channels are sequentially arranged at intervals from inside to outside along the radial direction between the injection section and the cooling channel.
In the utility model, the first heat insulation section is integrally connected with the first heat insulation section.
In the present utility model, the heat insulating passage is a continuous passage structure in the circumferential direction.
In the present utility model, the heat insulating passage is constituted by a passage structure divided into a plurality of sections in the circumferential direction.
In the utility model, the heat insulation channel is formed in the die cavity bottom body based on a 3D printing technology.
In the utility model, the inside of the heat insulation channel is in a vacuum state.
The beneficial effects of the utility model are as follows: by arranging the heat insulation channel between the cooling channel and the injection section, heat of the injection section can be prevented from being conducted to the cooling channel through the heat insulation structure, the heat conduction area between the injection section and the cooling channel is reduced, and the heat conduction speed of the injection section and the cooling channel is reduced, so that the temperature of the hot runner injection nozzle and the injection section is ensured not to be too low, and the problems of blockage of the hot runner injection nozzle, casting gate burrs, peeling of blank bottoms and the like are avoided; in addition, the heat insulation channel is integrally formed by a 3D printing technology, is not limited by a processing technology, can be arranged in the die cavity bottom body in a completely closed state, can be arranged by extending to a position close to a die cavity bottom forming area to the maximum extent, and has the maximum heat insulation effect; and the two ends of the heat insulation channel are respectively spaced from the forming area and the injection section by a certain distance, so that the bottom of the die cavity can be ensured to have a certain structural strength.
Drawings
FIG. 1 is a schematic diagram of a first embodiment;
FIG. 2 is a schematic view showing a continuous hollow cylindrical structure of an insulation channel according to an embodiment;
FIG. 3 is a schematic view of an embodiment in which an insulating passageway is a discontinuous hollow cylindrical structure;
FIG. 4 is a schematic view showing a continuous hollow elliptic cylindrical structure of an insulating channel according to an embodiment;
FIG. 5 is a schematic view of an embodiment in which the insulating passageway is a discontinuous hollow oval cylindrical structure;
FIG. 6 is a schematic view showing a continuous hollow prismatic structure of an insulating passageway according to an embodiment;
FIG. 7 is a schematic view of an embodiment in which the insulating passageway is a discontinuous hollow prismatic structure;
FIG. 8 is a schematic view of a hollow truncated cone or hollow column frustum-shaped structure of an insulating channel according to an embodiment;
fig. 9 is a schematic structural diagram of a second embodiment;
FIG. 10 is a schematic view of the mounting structure between the cavity bottom and the hot runner nozzle according to the second embodiment;
fig. 11 is a schematic structural view of the third embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
Embodiment one:
as shown in fig. 1 to 8, this embodiment discloses a mold cavity bottom with heat insulation design, including mold cavity bottom body 1, the middle part of mold cavity bottom body 1 is equipped with injection section 2 and shaping district 3 along the axial in proper order, mold cavity bottom body 1 is equipped with around the cooling channel 4 in shaping district 3 outside, cooling channel 4 with be provided with heat insulation structure between injection section 2, heat insulation structure includes round heat insulation channel 5 at least, heat insulation channel 5 seals completely and sets up in mold cavity bottom body 1. Through set up thermal-insulated passageway 5 between cooling channel 4 and injection section 2, can separate the heat conduction of injection section 2 to cooling channel 4 through thermal-insulated structure, the heat conduction area between injection section 2 and the cooling channel 4 reduces, reduces the heat conduction speed of both to ensure that the temperature of hot runner nozzle 6 and injection section 2 can not be too low, avoid causing hot runner nozzle 6 to block up, runner deckle edge and the at the bottom of the blank desquamation scheduling problem.
In this embodiment, the specific structure of the heat insulation channel 5 may be configured according to the structure of the cavity bottom body 1 and the heat insulation requirement. The heat insulation channel 5 may be a continuous channel structure in the circumferential direction; or may be constituted by a multi-stage divided channel structure in the circumferential direction; preferably a continuous channel structure. The heat insulation channel 5 may have a hollow cylindrical shape, a hollow elliptic cylindrical shape, a hollow prismatic shape, a hollow truncated cone shape, a hollow cylindrical truncated cone shape, or the like. Of course, the central axis of the heat insulating passage 5 may coincide with the central axis of the cavity bottom body 1 or may be offset from the central axis of the cavity bottom body 1. Preferably, the distance between the insulating channel 5 and the cooling channel 4 is equal to the distance between the insulating channel 5 and the injection section 2.
In this embodiment, the heat insulation channel 5 is formed in the cavity bottom body 1 based on 3D printing technology. The heat insulation channel 5 is integrally formed by a 3D printing technology, is not limited by a processing technology, can be arranged in the die cavity bottom body 1 in a completely closed state, and can be arranged by extending to a position close to the die cavity bottom forming area 3 to the maximum extent, so that the heat insulation effect is maximized; and the two ends of the heat insulation channel 5 are respectively spaced from the forming area 3 and the injection section 2 by a certain distance, so that the bottom of the die cavity can be ensured to have a certain structural strength.
In this embodiment, the inside of the heat insulation channel 5 is in a vacuum state; further enhancing the heat conduction blocking effect of the insulating channel 5.
Embodiment two:
the embodiment of the present utility model is substantially the same as that of the first embodiment, except that: as shown in fig. 9 and 10, the injection section 2 includes a cavity injection section 21 and a pouring channel 22, and the heat insulation channel 5 includes at least a first heat insulation section 51 and a second heat insulation section 52, wherein the first heat insulation section 51 is disposed around the outside of the pouring channel 22, and the second heat insulation section 52 is disposed around the outside of the cavity injection section 21. Thereby, corresponding heat insulation sections are configured for different functional areas in the injection section 2, so that the injection section 2 is ensured to have an adaptive heat insulation structure, and the heat insulation effect is enhanced.
In this embodiment, the cavity injection section 21 includes a pressure maintaining section 211 and a pressurizing section 212, the second heat insulation section 52 includes at least a first heat insulation section 521 and a second heat insulation section 522, the first heat insulation section 521 is circumferentially disposed along an outer side of the pressurizing section 212, and the second heat insulation section 522 is circumferentially disposed along an outer side of the pressure maintaining section 211. When the bottle blank is injected, the hot runner injection nozzle 6 stretches into the die cavity injection section 21 to be matched, and under the blocking effect of the first heat insulation section 51 and the second heat insulation section 52, the temperature of the hot runner injection nozzle 6 and the temperature of the injection section 2 can be ensured not to be too low, so that the problems of blockage of the hot runner injection nozzle 6, casting gate burrs, blank bottom peeling and the like are effectively avoided. In addition, the cooling efficiency of the blank bottom can be further improved due to the enhanced heat insulation effect, so that the molding period of bottle blanks is shortened, and the production efficiency is improved.
As a preferred embodiment, the first insulation segment 521 is integrally connected to the first insulation segment 51.
In this embodiment, the front projection of the first heat-insulating section 51 on the cavity bottom body 1 completely covers the pouring channel 22; can ensure that the first heat insulation section 51 provides better heat conduction blocking effect for the pouring channel 22, and the first heat insulation section 51 extends to the length L of the axial direction of the die cavity bottom body 1 1 Length L of casting channel 22 extending in axial direction of cavity bottom body 1 2 . Preferably, the first heat-insulating section 51 has an axial extension L between the end of the pouring channel 22 adjacent to the molding zone 3 and the end thereof adjacent to the molding zone 3 3 ，L 3 =（0.5～0.6）L 2 。
Embodiment III:
the embodiment of the present utility model is substantially the same as that of the first embodiment, except that: as shown in fig. 11, the heat insulation structure comprises two or more heat insulation channels 5, the heat insulation channels 2 and the cooling channels 4 are arranged at intervals from inside to outside along the radial direction, and the heat insulation effect of the injection segment 2 is gradually enhanced along with the increase of the number of the heat insulation channels 5 in the cavity bottom body 1.
The foregoing is only a preferred embodiment of the present utility model, and all technical solutions for achieving the object of the present utility model by substantially the same means are included in the scope of the present utility model.
Claims (10)
1. The utility model provides a die cavity end with thermal-insulated design, includes the die cavity end body, the middle part of die cavity end body is equipped with injection section and shaping district along the axial in proper order, the die cavity end body is equipped with the cooling channel around the shaping district outside, cooling channel with be provided with thermal-insulated structure between the injection section, its characterized in that: the heat insulation structure at least comprises a circle of heat insulation channels, and the heat insulation channels are completely sealed and arranged in the die cavity bottom body.
2. A mold cavity floor with an insulating design as claimed in claim 1, wherein: the injection section comprises a die cavity injection section and a pouring channel, wherein the heat insulation channel at least comprises a first heat insulation section, and the first heat insulation section is arranged along the outer side of the pouring channel in a surrounding mode.
3. A mold cavity floor with an insulating design as claimed in claim 2, wherein: the heat insulation channel at least further comprises a second heat insulation section, and the second heat insulation section is arranged along the outer side of the die cavity injection section in a surrounding mode.
4. A mold cavity base having an insulating design as recited in claim 3, wherein: the die cavity injection section comprises a pressure maintaining section and a pressurizing section, the second heat insulation section at least comprises a first heat insulation section and a second heat insulation section, the first heat insulation section is arranged along the outer side of the pressurizing section in a surrounding mode, and the second heat insulation section is arranged along the outer side of the pressure maintaining section in a surrounding mode.
5. A mold cavity bottom having an insulating design as in claim 4, wherein: the first insulation segment is integrally connected with the first insulation segment.
6. A mold cavity floor with an insulating design according to any one of claims 1-5, wherein: the heat insulation structure comprises two or more circles of heat insulation channels, and the heat insulation channels are sequentially arranged between the injection section and the cooling channels at intervals from inside to outside along the radial direction.
7. A mold cavity bottom having an insulating design as in claim 6, wherein: the insulating channel is a circumferentially continuous channel structure.
8. A mold cavity bottom having an insulating design as in claim 6, wherein: the heat insulation channel is formed by a multi-section separated channel structure in the circumferential direction.
9. A mold cavity bottom having an insulating design as in claim 6, wherein: the heat insulation channel is formed in the die cavity bottom body based on a 3D printing technology.
10. A mold cavity bottom having an insulating design as in claim 6, wherein: the inside of the heat insulation channel is in a vacuum state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321379291.0U CN220008632U (en) | 2023-05-31 | 2023-05-31 | Mold cavity bottom with heat insulation design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321379291.0U CN220008632U (en) | 2023-05-31 | 2023-05-31 | Mold cavity bottom with heat insulation design |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220008632U true CN220008632U (en) | 2023-11-14 |
Family
ID=88679512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321379291.0U Active CN220008632U (en) | 2023-05-31 | 2023-05-31 | Mold cavity bottom with heat insulation design |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220008632U (en) |
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2023
- 2023-05-31 CN CN202321379291.0U patent/CN220008632U/en active Active
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