CN218928538U - Mold cooling waterway structure for solving stress marks of thin-wall plastic products - Google Patents
Mold cooling waterway structure for solving stress marks of thin-wall plastic products Download PDFInfo
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- CN218928538U CN218928538U CN202223396703.XU CN202223396703U CN218928538U CN 218928538 U CN218928538 U CN 218928538U CN 202223396703 U CN202223396703 U CN 202223396703U CN 218928538 U CN218928538 U CN 218928538U
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Abstract
The utility model relates to the technical field of dies, in particular to a die cooling water path structure for solving stress marks of a thin-wall plastic product, which comprises a female die core, a male die core and a cooling water path, wherein the female die core is internally provided with a cooling water path I and a cooling water path II, the cooling water path I is positioned at the thick wall of the plastic product, the cooling water path II is positioned at the thin wall of the plastic product, the male die core is internally provided with a cooling water path III and a cooling water path IV, the cooling water path III is positioned at the edge of the plastic product, and the cooling water path IV is positioned at the junction of the thickness of the plastic product. Compared with the prior art, the utility model changes the cooling water path structure of the female die core, and adds the cooling water path at the junction of the male die core and the thickness of the product, so that the cooling is more uniform, the stress mark at the junction of the thickness is avoided, the molding reject ratio of the plastic product is reduced, the rejection of the stress mark and the processing time after the stress mark are reduced, the productivity is improved, and the injection molding cost is reduced.
Description
Technical Field
The utility model relates to the technical field of dies, in particular to a die cooling waterway structure for solving stress marks of thin-wall plastic products.
Background
In the mould, traditional cooling mode is the same temperature cooling of the different positions of mould master model or public mould generally, and the cooling water route of master model is general evenly distributed, and the cooling water route of public mould is according to the product shape, mainly distributes in the outer lane, and is far away from product thickness junction, leads to the cooling inhomogeneous to produce stress mark in product thickness junction, cause plastic product shaping bad, not only need increase extra process and handle stress mark, still probably lead to the condition emergence such as product scrapping.
Therefore, it is necessary to design a cooling waterway structure of a mold for solving stress marks of a thin-wall plastic product, which can make cooling more uniform, avoid stress marks at the junction of the thickness and the thickness, and reduce the molding reject ratio of the plastic product.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a mold cooling waterway structure for solving the stress marks of a thin-wall plastic product, which can lead the cooling to be more uniform, avoid the stress marks at the junction of the thickness and reduce the molding reject ratio of the plastic product.
In order to achieve the above-mentioned purpose, the present utility model provides a mold cooling waterway structure for solving stress marks of a thin-walled plastic product, comprising a female mold core, a male mold core, and a cooling waterway, wherein the female mold core is internally provided with a first cooling waterway and a second cooling waterway, the first cooling waterway is positioned at the thick wall of the plastic product, the second cooling waterway is positioned at the thin wall of the plastic product, the male mold core is internally provided with a third cooling waterway and a fourth cooling waterway, the third cooling waterway is positioned at the edge of the plastic product, and the fourth cooling waterway is positioned at the junction of the thickness of the plastic product.
The first cooling water channel and the second cooling water channel are of parallel structures, the first cooling water channel comprises three first cooling pipelines, the first cooling pipelines are connected with a first cooling water source after being adjacent end to end, and the second cooling water channel is connected with a second cooling water source.
The temperature of the first cooling water source is 80 ℃, and the temperature of the second cooling water source is 90-95 ℃.
The first cooling water channel and the second cooling water channel are in a serial structure, and after being connected in series, the first cooling water channel and the second cooling water channel are connected with the first cooling water source, and the vertical distance between the first cooling water channel and the plastic product is larger than that between the second cooling water channel and the plastic product.
The third cooling water channel and the fourth cooling water channel are in a serial structure, and are connected with the third cooling water source after being connected in series with the fourth cooling water channel.
The third cooling water channel and the fourth cooling water channel are in parallel connection, the third cooling water channel is connected with the third cooling water source, and the fourth cooling water channel is connected with the fourth cooling water source.
Compared with the prior art, the utility model changes the cooling water path structure of the female die core, and adds the cooling water path at the junction of the male die core and the thickness of the product, so that the cooling is more uniform, the stress mark at the junction of the thickness is avoided, the molding reject ratio of the plastic product is reduced, the rejection of the stress mark and the processing time after the stress mark are reduced, the productivity is improved, and the injection molding cost is reduced.
Drawings
FIG. 1 is a front view of a master mold insert according to the present utility model.
Fig. 2 is a cross-sectional view A-A of fig. 1 in accordance with the present utility model.
FIG. 3 is a diagram showing a cooling water path of a female mold insert according to the present utility model.
Fig. 4 is a front view of the male mold insert of the present utility model.
Fig. 5 is a side view of a male mold insert of the present utility model.
FIG. 6 is a diagram showing a cooling water path of the male mold insert of the present utility model.
Detailed Description
The utility model will now be further described with reference to the accompanying drawings.
Referring to fig. 1-6, the utility model provides a mold cooling water path structure for solving stress marks of a thin-wall plastic product, which comprises a female mold core, a male mold core and a cooling water path, wherein a first cooling water path 11 and a second cooling water path 12 are arranged in the female mold core 1, the first cooling water path 11 is positioned at the thick wall of the plastic product 3, the second cooling water path 12 is positioned at the thin wall of the plastic product 3, a third cooling water path 21 and a fourth cooling water path 22 are arranged in the male mold core 2, the third cooling water path 21 is positioned at the edge of the plastic product 3, and the fourth cooling water path 22 is positioned at the junction 31 between the thickness of the plastic product 3.
The first cooling water channel 11 and the second cooling water channel 12 are in parallel connection, the first cooling water channel 11 comprises three first cooling pipelines, the first cooling pipelines are connected with the first cooling water source after being adjacent end to end, and the second cooling water channel 12 is connected with the second cooling water source.
The temperature of the first cooling water source is 80 ℃, and the temperature of the second cooling water source is 90-95 ℃ so as to raise the mold temperature of the thin wall, so that the cooling of the product is synchronous.
The first cooling water channel 11 and the second cooling water channel 12 are of a serial structure, the first cooling water channel 11 is connected with the first cooling water source after being connected with the second cooling water channel 12 in series, the vertical distance between the first cooling water channel 11 and the plastic product 3 is larger than the vertical distance between the second cooling water channel 12 and the plastic product 3, and synchronous cooling at different positions can be realized by reducing the distance between the second cooling water channel 12 and the cavity even if the cooling water sources with the same temperature are adopted in the serial structure, so that stress mark defects are reduced.
The third cooling water channel 21 and the fourth cooling water channel 22 are in a serial structure, and the third cooling water channel 21 and the fourth cooling water channel 22 are connected in series and then connected with the third cooling water source.
The third cooling water channel 21 and the fourth cooling water channel 22 are in parallel connection, the third cooling water channel 21 is connected with the third cooling water source, and the fourth cooling water channel 22 is connected with the fourth cooling water source.
The cooling water channel III 21 and the cooling water channel IV 22 can adopt a water channel connection of a serial structure or a parallel structure according to actual conditions, so that the cooling water channels on the common die surface are more uniformly distributed at each position of the product, the cooling effect of each position of the product is achieved simultaneously, the cooling time of the overall product is basically consistent with that before the change, and the forming efficiency is unchanged. The design of the cooling water channel III 21 and the cooling water channel IV 22 can be specially designed and arranged according to different moulds, different product wall thicknesses and different shapes, and the cooling water channel III and the cooling water channel IV are flexible in operation and high in flexibility.
According to the utility model, according to the difference of the wall thickness of the plastic product, the cooling water channel IV 22 is additionally arranged at the junction of the thickness of the male die surface so as to combine the combined action of the female die surface, thereby ensuring the synchronous cooling of each position of the product, especially the region with large difference of the wall thickness, and avoiding the generation of stress marks.
When the injection molding machine works, after the injection molding machine is provided with the mold, after each cooling water source is connected with the corresponding cooling water channel, cooling water flows in the corresponding cooling water channel in the injection molding production process as shown in fig. 3 and 6, so that cooling of plastic products is completed, and the expected cooling effect is achieved.
The utility model changes the cooling water path structure of the female die core, and adds the cooling water path at the junction of the male die core and the thickness of the product, so that the cooling is more uniform, stress marks at the junction of the thickness are avoided, the molding reject ratio of the plastic product is reduced, the processing time after the stress marks are scrapped, the productivity is improved, and the injection molding cost is reduced.
Claims (6)
1. The utility model provides a solve mould cooling waterway structure of thin wall plastic product stress mark, includes master model benevolence, public mould benevolence, cooling waterway, its characterized in that: be provided with cooling water route one (11), cooling water route two (12) in master model benevolence (1), cooling water route one (11) are located the thick wall department of plastic product (3), and cooling water route two (12) are located the thin wall department of plastic product (3), are provided with cooling water route three (21), cooling water route four (22) in the core (2), and cooling water route three (21) are located the edge of plastic product (3), and cooling water route four (22) are located thickness handing-over department (31) of plastic product (3).
2. The mold cooling waterway structure for solving stress marks of thin-wall plastic products according to claim 1, wherein the mold cooling waterway structure is characterized in that: the first cooling water channel (11) and the second cooling water channel (12) are of parallel structures, the first cooling water channel (11) comprises three first cooling pipelines, the first cooling pipelines are connected with the first cooling water source after being adjacent end to end, and the second cooling water channel (12) is connected with the second cooling water source.
3. The mold cooling waterway structure for solving stress marks of thin-wall plastic products according to claim 2, wherein: the temperature of the first cooling water source is 80 ℃, and the temperature of the second cooling water source is 90-95 ℃.
4. The mold cooling waterway structure for solving stress marks of thin-wall plastic products according to claim 1, wherein the mold cooling waterway structure is characterized in that: the first cooling water channel (11) and the second cooling water channel (12) are in a serial structure, the first cooling water channel (11) and the second cooling water channel (12) are connected in series and then connected with the first cooling water source, and the vertical distance between the first cooling water channel (11) and the plastic product (3) is larger than the vertical distance between the second cooling water channel (12) and the plastic product (3).
5. The mold cooling waterway structure for solving stress marks of thin-wall plastic products according to claim 1, wherein the mold cooling waterway structure is characterized in that: the third cooling water channel (21) and the fourth cooling water channel (22) are in a serial structure, and the third cooling water channel (21) is connected with the third cooling water source after being connected with the fourth cooling water channel (22) in series.
6. The mold cooling waterway structure for solving stress marks of thin-wall plastic products according to claim 1, wherein the mold cooling waterway structure is characterized in that: the third cooling water channel (21) and the fourth cooling water channel (22) are in a parallel structure, the third cooling water channel (21) is connected with the third cooling water source, and the fourth cooling water channel (22) is connected with the fourth cooling water source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223396703.XU CN218928538U (en) | 2022-12-19 | 2022-12-19 | Mold cooling waterway structure for solving stress marks of thin-wall plastic products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223396703.XU CN218928538U (en) | 2022-12-19 | 2022-12-19 | Mold cooling waterway structure for solving stress marks of thin-wall plastic products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218928538U true CN218928538U (en) | 2023-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223396703.XU Active CN218928538U (en) | 2022-12-19 | 2022-12-19 | Mold cooling waterway structure for solving stress marks of thin-wall plastic products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218928538U (en) |
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2022
- 2022-12-19 CN CN202223396703.XU patent/CN218928538U/en active Active
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