CN117799103A - Improved sole mould - Google Patents
Improved sole mould Download PDFInfo
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- CN117799103A CN117799103A CN202410227845.8A CN202410227845A CN117799103A CN 117799103 A CN117799103 A CN 117799103A CN 202410227845 A CN202410227845 A CN 202410227845A CN 117799103 A CN117799103 A CN 117799103A
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- 238000001816 cooling Methods 0.000 claims abstract description 53
- 239000000498 cooling water Substances 0.000 claims abstract description 35
- 238000000465 moulding Methods 0.000 claims abstract description 25
- 238000005507 spraying Methods 0.000 claims abstract description 23
- 239000007921 spray Substances 0.000 claims abstract description 17
- 230000002093 peripheral effect Effects 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims description 28
- 238000010146 3D printing Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 14
- 238000007493 shaping process Methods 0.000 description 22
- 238000009826 distribution Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000429 assembly Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to the technical field of sole molds, in particular to an improved sole mold, which is characterized in that: the mold cooling device comprises a mold body and a mold cooling device arranged below the mold body, wherein the mold body comprises a lower mold, a sole model is arranged on the lower mold, a micro-hollow structure communicated with a molding cavity in the sole model is arranged on the mold wall of the sole model, the mold cooling device further comprises a side spraying component for spraying cooling water on the outer peripheral surface of the sole model, and part of cooling water sprayed on the outer peripheral surface of the sole model penetrates into the outer surface of the molded sole in the molding cavity through the micro-hollow structure. The utility model can spray cooling water on the peripheral surface of the mold wall of the sole mold, can cool the mold body and simultaneously can directly cool the molded sole in the sole mold, thereby effectively ensuring the integral cooling effect.
Description
Technical Field
The utility model relates to the technical field of sole molds, in particular to an improved sole mold.
Background
EVA sole refers to the sole of using EVA material to make, utilizes EVA sole make-up machine to put the EVA material of putting in the sole mould and pass through high temperature extrusion cooling shaping to obtain, and the sole mould just can go on the die sinking after the cooling when using to the temperature is too high when preventing the die sinking, and inside product warp, leads to product quality to reduce.
To solve this problem, the utility model patent with publication number CN215619366U provides a shoe mold with a rapid cooling structure. According to the shoe mold with the rapid cooling structure, the split-flow spraying device capable of storing water and maintaining pressure is arranged at the bottom of the mold, so that the mold is cooled from a plurality of points, and the mold cooling speed and the mold opening efficiency are improved. However, in actual use, it is found that the cooling water is sprayed from the bottom of the mold, the outer circumferential surface of the sole model of the mold cannot be directly cooled by spraying the cooling water, and when the mold is cooled, so that the product in the mold is cooled indirectly, and the mold cannot be cooled, and meanwhile, the corresponding cooling effect is also directly achieved on the product in the mold, so that the mold needs to be further improved.
Disclosure of Invention
The utility model aims to solve the technical problem of providing an improved sole mould which can spray cooling water on the peripheral surface of the mould wall of a sole mould, can cool and cool a formed sole in the sole mould directly while cooling the mould body, and effectively ensures the integral cooling effect.
In order to solve the technical problems, the utility model adopts the following technical scheme: the improved sole mold comprises a mold body and a mold cooling device arranged below the mold body, wherein the mold body comprises a lower mold, a sole mold is arranged on the lower mold, a micro-hollow structure communicated with a molding cavity in the sole mold is arranged on a mold wall of the sole mold, the mold cooling device further comprises a side spraying component for spraying cooling water on the outer peripheral surface of the sole mold, and part of cooling water sprayed on the outer peripheral surface of the sole mold penetrates into the outer surface of the molded sole in the molding cavity through the micro-hollow structure.
Further, the micro-hollowed structure comprises a plurality of micropores, and the micropores penetrate through the inner side and the outer side of the mold wall of the sole mold.
Further, the micro-hollowed structure comprises an inner hole and an outer hole which are communicated, the inner diameter of the outer hole is larger than that of the inner hole, the inner hole is a plurality of and is arranged on the inner surface of a molding die cavity of the sole model, and the outer hole is a plurality of and is arranged on the outer circumferential surface of the die wall of the sole model.
Further, the inner diameter of the inner hole is 0.1-0.2mm, the inner diameter of the outer hole is 2.5-3.5mm, and the depth of the inner hole is 0.2-0.4 times of the thickness of the mould wall of the sole mould.
Further, the inner hole is communicated with the outer hole through a plurality of communication channels, the communication channels are arranged in the mold wall of the sole mold and are equidistant from the inner surface of the molding mold cavity, the communication channels are vertically arranged, and the communication channels are uniformly arranged at intervals along the circumferential direction of the sole mold.
Further, the upper and lower ends of the communication channel extend upwards and downwards to the positions close to the upper and lower ends of the sole model respectively, and the upper and lower ends of the communication channel are communicated with the corresponding outer holes.
Further, the inner hole is communicated with the outer hole through a communication cavity, the communication cavity is arranged in the mold wall of the sole mold, and the communication cavity is arranged at equal intervals with the inner surface of the molding mold cavity.
Further, the outer holes are divided into a plurality of circles from top to bottom, the outer holes of the upper circle and the lower circle at the outermost side are outlet holes, the outer holes of the other circles at the inner side are inlet holes, and the side spraying assembly sprays cooling water towards the inlet holes.
Further, the sole model is manufactured by 3D printing, and the sole model is detachably connected with the lower die.
Further, the side spraying components are arranged at the periphery of the sole model, each side spraying component comprises a side cooling spray head and a side flow channel, the side flow channels are communicated with the closed flow channels on the mold cooling device, and the side cooling spray heads are multiple and fixedly installed on the side flow channels.
From the above description, the improved sole mold provided by the utility model has the following beneficial effects: through the setting of side spraying subassembly, through directly spouting the cooling water to the die wall outer peripheral face of sole model, can further promote the quick cooling effect to the sole model, and because the die wall thickness of sole model is relatively thinner, can make the better transmission of low temperature of spouting the cooling water to the shaping sole in the sole model on, with the cooling effect of better realization to the shaping sole in the sole model, cooperate micro hollow structure's setting simultaneously, on not influencing the normal fashioned basis of sole, thereby spout the partial cooling water accessible micro hollow structure infiltration to the shaping sole surface in the shaping die cavity on the outer peripheral face of sole model, thereby make the cooling water can directly produce the contact with shaping sole surface, thereby can realize carrying out cooling to the mould body, also can directly carry out cooling to the shaping sole in the sole model, and make the inside steam of sole model accessible micro hollow structure discharge, in order to avoid the hot air to be stuffy in the shaping die cavity of sole model, thereby whole cooling effect has been promoted greatly.
Drawings
Fig. 1 is a schematic perspective view of an improved sole mold according to the present utility model.
Fig. 2 is a schematic perspective view of a sole model according to a first embodiment.
Fig. 3 is a schematic view showing a partial structure of a sole model in a second embodiment.
Fig. 4 is a schematic perspective view of a sole model in a third embodiment.
Fig. 5 is a schematic view showing an internal structure of a sole model in a third embodiment.
Fig. 6 is a schematic view showing an internal structure of a sole model in a fourth embodiment.
Fig. 7 is a schematic perspective view of a side spraying assembly.
In the figure: 1-a die body; 11-lower die; 12-sole model; 121-a molding cavity; 2-a mold cooling device; 21-side spraying assembly; 211-side cooling spray heads; 212-side flow channels; 22-closing the flow channel; 23-a base; 24-diverter trays; 25-force-bearing columns; 26-cooling the spray head; 27-linker; 31-micropores; 32-inner holes; 33-outer aperture; 34-communicating channels; 35-communicating the cavity.
Detailed Description
The utility model is further described below by means of specific embodiments.
Example 1
As shown in fig. 1, 2 and 7, the improved sole mold according to the present utility model comprises a mold body 1 and a mold cooling device 2 disposed below the mold body 1, wherein the mold body 1 comprises a lower mold 11, a sole mold 12 is disposed on the lower mold 11, a micro-hollow structure communicating with a molding cavity 121 in the sole mold 12 is disposed on a mold wall of the sole mold 12, the mold cooling device 2 further comprises a side spraying assembly 21 for spraying cooling water on an outer peripheral surface of the sole mold 12, and part of the cooling water sprayed on the outer peripheral surface of the sole mold 12 penetrates into an outer surface of a molded sole in the molding cavity 121 through the micro-hollow structure.
Through the setting of side spouting subassembly 21, through directly right the die wall outer peripheral face of sole model 12 spouts cooling water, can further promote right the quick cooling effect of sole model 12, and because the die wall thickness of sole model 12 is thinner relatively, can make the lower temperature that spouts cooling water better transmit to on the shaping sole in the sole model 12 to better realization is right the cooling effect of shaping sole in the sole model 12, simultaneously the cooperation micro-hollow structure's setting, on the basis that does not influence the sole normal shaping, spout to partial cooling water on the outer peripheral face of sole model 12 accessible micro-hollow structure infiltration reaches thereby make the cooling water can directly produce the contact with shaping sole surface in shaping die cavity 121 on, can realize when cooling down to the mould body 1 also can directly be right the shaping sole in the sole model 12 cools down, and make the steam in the sole model 12 can be through micro-hollow structure discharges, so that the shaping effect of sole 12 in the big die cavity 121 has been avoided to the shaping of sole 12 is big has promoted.
Specifically, the micro-hollowed structure includes a plurality of micro-holes 31, the micro-holes 31 penetrate through the inner side and the outer side of the mold wall of the sole mold 12, so that part of cooling water sprayed onto the outer circumferential surface of the sole mold 12 can penetrate into the outer surface of the molded sole in the molding cavity 121 through the plurality of micro-holes 31, and thus directly contact with the outer surface of the molded sole to realize cooling, and correspondingly, in practical application, a sufficient number of micro-holes 31 can be arranged to further ensure uniformity of cooling of the molded sole in the molding cavity 121.
Preferably, the sole model 12 is manufactured by 3D printing, compared with a direct casting method, the sole model 12 with a finer micro-hollow structure can be manufactured better, the overall cooling effect can be better ensured while the sole molding is not affected, the sole model 12 is detachably connected with the lower die 11, correspondingly, the sole model 12 and the lower die 11 can be connected by bolts so as to realize the detachable connection of the two, and the sole model 12 can be conveniently detached and replaced, in addition, only the sole model 12 is manufactured by adopting a 3D printing method, and the lower die 11 can be manufactured by adopting other manufacturing methods, such as casting molding.
Correspondingly, the mold cooling device 2 comprises a base 23, a flow distribution disc 24, a force bearing column 25 and a cooling spray nozzle 26, wherein the flow distribution disc 24 and the force bearing column 25 are arranged on the base 23, the force bearing column 25 is used for supporting the mold body 1, the flow distribution disc is provided with a closed flow passage 22, the bottom of the base 23 is provided with a joint 27 communicated with the closed flow passage 22, the inlet at the bottom of the cooling spray nozzle 26 is communicated with the closed flow passage 22, and the spraying direction of the cooling spray nozzle 26 faces the mold body 1.
Preferably, the side spraying assemblies 21 are disposed around the sole model 12, specifically, the side spraying assemblies 21 include side cooling spray heads 211 and side channels 212, the side channels 212 are communicated with the closed channels 22 on the mold cooling device 2, the side cooling spray heads 211 are multiple and fixedly installed on the side channels 212, preferably, the number of the side cooling spray heads 211 is 2-6, and the side channels 212 are in a T shape.
Example two
As shown in fig. 3, the present embodiment is different from the first embodiment in that: the micro-hollowed-out structure comprises an inner hole 32 and an outer hole 33 which are communicated, the inner diameter of the outer hole 33 is larger than that of the inner hole 32, the inner holes 32 are a plurality of and are arranged on the inner surface of the molding die cavity 121 of the sole model 12, and the outer holes 33 are a plurality of and are arranged on the outer circumferential surface of the die wall of the sole model 12. In practical applications, since the inner diameter of the inner hole 32 is smaller than the inner diameter of the outer hole 33, a plurality of inner holes 32 may be disposed corresponding to and communicating with one outer hole 33, and of course, one inner hole 32 may be disposed corresponding to and communicating with one outer hole 33.
In the case of determining the thickness of the mold wall of the sole mold 12, by arranging the inner hole 32 in cooperation with the outer hole 33, and by arranging the inner hole 32 with a smaller inner diameter on the inner surface of the molding cavity 121 of the sole mold 12 and arranging the outer hole 33 with a larger inner diameter on the outer circumferential surface of the mold wall of the sole mold 12, the depth of the inner hole 32 is greatly reduced, and because impurities are contained in water or EVA materials in the sole mold 12 remain, the inner hole 32 is sometimes blocked, and by arranging the inner hole 32 with a smaller depth, the subsequent cleaning of the inner hole 32 is facilitated, and the smoothness of the inner hole 32 is well ensured, effectively avoid influencing the entering of cooling water because of hole 32 is plugged up, in addition, through setting up the internal diameter of outer hole 33 great, be favorable to more cooling water to get into through outer hole 33 in the die wall of sole model 12, further promote to the cooling effect of sole model 12, through setting up the internal diameter of hole 32 less, when guaranteeing that the cooling water can get into smoothly and contact the shaping sole surface, the shaping quality of assurance shaping sole that can be better is difficult for being formed with a plurality of coarser granule archs on the outer peripheral face of shaping sole, the aesthetic property of assurance shaping sole outward appearance that can be better, and the outer peripheral face of better convenient shaping sole takes shape.
Preferably, the inner diameter of the inner hole 32 is 0.1-0.2mm, the inner diameter of the outer hole 33 is 2.5-3.5mm, and the depth of the inner hole 32 is 0.2-0.4 times the thickness of the mold wall of the sole mold 12.
Other technical features are the same as those of the first embodiment.
Example III
As shown in fig. 4 and 5, the difference between the present embodiment and the second embodiment is that: on the basis of the second embodiment, the inner holes 32 are communicated with the outer holes 33 through the communication channels 34, the communication channels 34 are a plurality of and are arranged in the mold walls of the sole mold 12, the communication channels 34 are equidistantly arranged with the inner surfaces of the molding cavities 121, so that uniformity of depths of the inner holes 32 and uniformity of cooling of finished soles in the molding cavities 121 are better ensured, the communication channels 34 are vertically arranged, the communication channels 34 are uniformly arranged at intervals along the circumferential direction of the sole mold 12, the communication of the inner holes 32 and the outer holes 33 is facilitated through the arrangement of the communication channels 34, more flexible spaces are reserved on the arrangement of the respective numbers of the inner holes 32 and the outer holes 33, the number of the inner holes 32 is more, the number of the outer holes 33 is less, and when cooling water enters and contacts the outer surfaces of the molded soles, the uniformity of cooling water can be better ensured for the soles 12 and the cooling effect of the inner soles can be better ensured when the cooling water enters the inner walls of the sole mold 12 and the sole mold 12, and the cooling effect of the sole mold 12 is better.
In addition, the upper and lower ends of the communication channel 34 extend upward and downward to be close to the upper and lower ends of the sole model 12, respectively, and the upper and lower ends of the communication channel 34 are communicated with the corresponding outer holes 33.
Preferably, the plurality of outer holes 33 are divided into a plurality of circles from top to bottom, the outer holes 33 of the two circles located at the outermost side are outlet holes, the outer holes 33 of the other circles located at the inner side are inlet holes, and the side spraying assembly 21 sprays cooling water towards the inlet holes, so that when the cooling water with a certain pressure enters from the inlet holes, the cooling water can flow out from the outlet holes at the upper side and the lower side along the communication channels 34, the cooling water can flow in the mold wall of the sole mold 12, the flow speed of the cooling water in the mold wall of the sole mold 12 is improved, the heat of the sole mold 12, the heat of the surface of the molded sole and the hot air emitted from the inside of the sole mold 12 can be better taken away, and the cooling effect on the sole mold 12 and the molded sole is further improved.
Furthermore, it is preferred that several of said outer holes 33 are divided into 3-6 turns.
Other technical features are specifically the same as those of the second embodiment.
Example IV
As shown in fig. 6, the present embodiment differs from the third embodiment in that: the inner holes 32 are communicated with the outer holes 33 through the communicating cavities 35, the communicating cavities 35 are arranged in the mold walls of the sole mold 12, and the communicating cavities 35 are arranged at equal intervals with the inner surfaces of the molding mold cavities 121, so that the depth consistency of the inner holes 32 and the uniformity of cooling the finished soles in the molding mold cavities 121 are better ensured, the mold walls of the sole mold 12 integrally form a cavity structure through the arrangement of the communicating cavities 35, the inner holes 32 are communicated with the outer holes 33, the inner holes 32 are more uniformly distributed on the inner surfaces of the sole mold 12, and the mold walls of the sole mold 12 can be better cooled when cooling water enters the communicating cavities 35.
Other technical features are specifically the same as those of the third embodiment.
The foregoing is merely a few specific embodiments of the present utility model, but the design concept of the present utility model is not limited thereto, and any insubstantial modification of the present utility model by using the concept should be construed as infringement of the protection scope of the present utility model.
Claims (10)
1. Improved generation sole mould, include the mould body and locate mould cooling device of mould body below, the mould body includes the lower mould, be equipped with sole model, its characterized in that on the lower mould: the mold cooling device comprises a mold wall of a sole mold, a mold cooling device and a side spraying assembly, wherein the mold wall of the sole mold is provided with a micro-hollow structure communicated with a molding mold cavity in the sole mold, the side spraying assembly is used for spraying cooling water on the outer peripheral surface of the sole mold, and part of cooling water sprayed on the outer peripheral surface of the sole mold penetrates into the outer surface of the molded sole in the molding mold cavity through the micro-hollow structure.
2. The improved shoe sole mold of claim 1, wherein: the micro-hollowed-out structure comprises a plurality of micro-holes, and the micro-holes penetrate through the inner side and the outer side of the mold wall of the sole mold.
3. The improved shoe sole mold of claim 1, wherein: the micro-hollowed structure comprises an inner hole and an outer hole which are communicated, the inner diameter of the outer hole is larger than that of the inner hole, the inner holes are a plurality of and are arranged on the inner surface of the molding die cavity of the sole model, and the outer holes are a plurality of and are arranged on the outer circumferential surface of the die wall of the sole model.
4. An improved sole mold according to claim 3, wherein: the inner diameter of the inner hole is 0.1-0.2mm, the inner diameter of the outer hole is 2.5-3.5mm, and the depth of the inner hole is 0.2-0.4 times of the thickness of the mould wall of the sole mould.
5. An improved sole mold according to claim 3, wherein: the inner hole is communicated with the outer hole through a plurality of communication channels, the communication channels are arranged in the mold wall of the sole mold and are equidistant from the inner surface of the molding mold cavity, the communication channels are vertically arranged, and the communication channels are uniformly arranged at intervals along the circumferential direction of the sole mold.
6. The improved shoe sole mold of claim 5, wherein: the upper end and the lower end of the communication channel extend upwards and downwards to be close to the upper end and the lower end of the sole model respectively, and the upper end and the lower end of the communication channel are communicated with the corresponding outer holes.
7. An improved sole mold according to claim 3, wherein: the inner hole is communicated with the outer hole through a communication cavity, the communication cavity is arranged in the mold wall of the sole mold, and the communication cavity is arranged at equal intervals with the inner surface of the molding mold cavity.
8. An improved sole mold according to claim 3, wherein: the outer holes are divided into a plurality of circles which are arranged from top to bottom, the outer holes of the upper circle and the lower circle which are positioned at the outermost side are outlet holes, the outer holes of the other circles which are positioned at the inner side are inlet holes, and the side spraying assembly sprays cooling water towards the inlet holes.
9. The improved shoe sole mold of claim 1, wherein: the sole model is manufactured by 3D printing, and the sole model is detachably connected with the lower die.
10. The improved shoe sole mold of claim 1, wherein: the side spraying components are arranged at the periphery of the sole model and comprise side cooling spray heads and side flow channels, the side flow channels are communicated with closed flow channels on the mold cooling device, and the side cooling spray heads are multiple and fixedly installed on the side flow channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410227845.8A CN117799103A (en) | 2024-02-29 | 2024-02-29 | Improved sole mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410227845.8A CN117799103A (en) | 2024-02-29 | 2024-02-29 | Improved sole mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117799103A true CN117799103A (en) | 2024-04-02 |
Family
ID=90423866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410227845.8A Pending CN117799103A (en) | 2024-02-29 | 2024-02-29 | Improved sole mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117799103A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3322408A1 (en) * | 1983-06-22 | 1985-01-10 | Bata Industries Ltd., Batawa, Ontario | Device and process for manufacturing shoe soles |
| CN1291542A (en) * | 1999-08-31 | 2001-04-18 | 刘坤钟 | Cooling method and mould for shaping foamed sole |
| CN209079286U (en) * | 2018-10-27 | 2019-07-09 | 福建省晋江泉发骑士鞋业有限公司 | A kind of ETPU sole forming die |
| CN213797923U (en) * | 2020-08-11 | 2021-07-27 | 泉州铭伟模具有限公司 | Sole mould convenient to cool |
| CN215619366U (en) * | 2021-08-28 | 2022-01-25 | 福建晋江市光宇鞋模有限公司 | Shoe mold with quick cooling structure |
| CN216682925U (en) * | 2021-11-18 | 2022-06-07 | 福建鑫瑞新材料科技有限公司 | Improved structure of shoemaking mould |
| CN114851615A (en) * | 2022-04-13 | 2022-08-05 | 泉州通晟模具有限公司 | Double-layer sole manufacturing mold and using method thereof |
| CN219214171U (en) * | 2022-02-16 | 2023-06-20 | 东莞市振飞自动化机械有限公司 | Sole thermoforming device |
-
2024
- 2024-02-29 CN CN202410227845.8A patent/CN117799103A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3322408A1 (en) * | 1983-06-22 | 1985-01-10 | Bata Industries Ltd., Batawa, Ontario | Device and process for manufacturing shoe soles |
| CN1291542A (en) * | 1999-08-31 | 2001-04-18 | 刘坤钟 | Cooling method and mould for shaping foamed sole |
| CN209079286U (en) * | 2018-10-27 | 2019-07-09 | 福建省晋江泉发骑士鞋业有限公司 | A kind of ETPU sole forming die |
| CN213797923U (en) * | 2020-08-11 | 2021-07-27 | 泉州铭伟模具有限公司 | Sole mould convenient to cool |
| CN215619366U (en) * | 2021-08-28 | 2022-01-25 | 福建晋江市光宇鞋模有限公司 | Shoe mold with quick cooling structure |
| CN216682925U (en) * | 2021-11-18 | 2022-06-07 | 福建鑫瑞新材料科技有限公司 | Improved structure of shoemaking mould |
| CN219214171U (en) * | 2022-02-16 | 2023-06-20 | 东莞市振飞自动化机械有限公司 | Sole thermoforming device |
| CN114851615A (en) * | 2022-04-13 | 2022-08-05 | 泉州通晟模具有限公司 | Double-layer sole manufacturing mold and using method thereof |
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