CN219171547U - Injection molding structure of hollow ultrathin-wall metal product - Google Patents
Injection molding structure of hollow ultrathin-wall metal product Download PDFInfo
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- CN219171547U CN219171547U CN202223566493.4U CN202223566493U CN219171547U CN 219171547 U CN219171547 U CN 219171547U CN 202223566493 U CN202223566493 U CN 202223566493U CN 219171547 U CN219171547 U CN 219171547U
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Abstract
The utility model relates to an injection molding structure of a hollow ultrathin-wall metal product. The existing hollow thin-wall metal product is generally formed by adopting a deep drawing forming process, and cannot form a metal product with the wall thickness of 0.25mm, the length of 55 x and the width of 8 x and the height of 20mm at one time. The utility model comprises a product main body and is characterized in that a material connecting structure is arranged on the product main body, the material connecting structure comprises a top material connecting structure arranged on the upper part of the product main body and a material connecting door plate structure arranged on the lower part of the product main body, and a large water gap glue opening is formed in the bottom of the material connecting door plate structure. The utility model increases the design of the casting-in material connecting structure and increases the inner/outer wide draft angle of the product; the added casting material structure meets the sintering support, and simultaneously has lower cost and convenient removal of the material structure.
Description
Technical Field
The utility model relates to an injection molding structure of a hollow ultrathin-wall metal product.
Background
As shown in fig. 1, the existing hollow thin-wall metal product is generally formed by adopting a deep drawing forming process, but the process cannot form a metal product with a wall thickness of 0.25mm and a length of 55 x and a width of 8 x and a height of 20mm at one time without improving the primary injection structure of the product. In addition, the product formed by the deep drawing molding process has larger deformation, and the size and the appearance can not meet the use requirements.
Disclosure of Invention
Aiming at the problems, the utility model provides a hollow ultrathin-wall metal product injection molding structure, which is designed to increase a casting material structure, meets the minimum deformation, meets the product size and appearance requirements, and improves the product yield.
The utility model adopts the following technical scheme: the hollow ultrathin-wall metal product injection molding structure comprises a product main body and is characterized in that a material connecting structure is arranged on the product main body, the material connecting structure comprises a top material connecting structure arranged on the upper part of the product main body and a material connecting door plate structure arranged on the lower part of the product main body, and a large water gap glue opening is formed in the bottom of the material connecting door plate structure.
Injection molding of the thin-wall product, wherein a large water gap type glue feeding point is adopted for feeding glue, the glue feeding point is a 2-side glue feeding point, the glue feeding point is arranged at a position where the thin-wall product is added, and after injection of molten materials, the glue feeding point and the thin-wall product are formed in an integral glue feeding position; and cutting off the glue inlet flow passage, fixing the formed thin-wall product on a positioning jig, cutting off the glue inlet flow passage by adopting a punching jig, and cutting off a connecting material structure by wire cutting after high-temperature sintering, thereby realizing a qualified product.
Two outer side parts of the material connecting door plate structure are provided with sub-runners, the two sub-runners are connected to the main runner, and a plurality of sub-runner inlet gates are formed in the sub-runners.
Preferably, the sub-runner is in a U-shaped cladding material connecting door plate structure.
Preferably, the material connecting door plate is structurally provided with a large water gap glue opening which is consistent with the opening at the lower end of the product main body.
Preferably, the top connecting structure is provided with a plurality of injection molding exhaust holes. The injection molding exhaust hole can also be used for positioning a mold core to prevent dislocation of products.
The utility model increases the design of the casting-in material connecting structure and increases the inner/outer wide draft angle of the product; the added casting material structure meets the sintering support, and simultaneously has lower cost and convenient removal of the material structure. The sintered product needs to meet the minimum deformation, the product size and appearance requirements, and the product yield is improved.
Drawings
FIG. 1 is a schematic structural view of the product of the present utility model.
FIG. 2 is a schematic diagram of the added material structure of the present utility model.
Fig. 3 is a schematic diagram of a MIM molded runner design according to the present utility model.
In the figure: 1. the product main body 2, the material connecting door plate structure 3, the sub-channel 4, the main channel 5 and the top material connecting structure.
Detailed Description
The utility model will be further illustrated with reference to specific examples.
The hollow ultra-thin wall metal product injection molding structure shown in fig. 2 and 3 comprises a product main body 1, wherein a material connecting structure is arranged on the product main body and comprises a top material connecting structure 5 arranged on the upper part of the product main body and a material connecting door plate structure 2 arranged on the lower part of the product main body, and a large water gap glue mouth is formed in the bottom of the material connecting door plate structure. In order to facilitate smooth demolding, draft angle can be increased in the inner/outer width of the product. The material connecting door plate structure 2 is designed to meet sintering support. The structure has relatively low cost and is convenient for subsequent operation to remove the connecting material structure.
As shown in fig. 3, two outer side parts of the connecting door plate structure are provided with sub-runners 3, the two sub-runners are connected to a main runner 4, and a plurality of sub-runner inlets are formed in the sub-runners. And removing the sub-runner 3 and the main runner 4 through a punching jig after the MIM injection molded product. The diameters of the sub-runners and the main runner 4 are large, so that the feeding materials can flow into the die cavity rapidly.
Specifically, the subchannel is of a U-shaped cladding material connecting door plate structure.
Specifically, the top is opened on the structure and is had the exhaust hole of moulding plastics that three interval set up, even material door plant structurally open and have big mouth of a river glue mouth and the lower extreme opening of product main part unanimous. And a large water gap glue opening is arranged, so that the high-speed injection molding machine is convenient to fill full products
Specifically, a plurality of injection molding exhaust holes are formed in the top connecting structure. The injection molding exhaust hole can also be used for positioning a mold core to prevent dislocation of products.
The specific implementation process of the utility model is as follows:
1) On the premise of ensuring that MIM can be normally injection-molded, filled and well demoulded, a casting-in material connecting structure is designed, and the inner/outer width of a product is increased in draft angle;
2) The designed material connecting structure meets the sintering support, and has the advantages of low cost and easy operation;
3) The sintered product needs to meet the minimum deformation, the product size and appearance requirements, and the product yield is improved;
and the product injection-molded by MIM is subjected to sintering by removing the sub-runner 3 and the main runner 4 through a punching jig and keeping the material connecting structure and the supporting main body 1.
The MIM injection molding blank is subjected to high-temperature sintering, and then the product is placed on the fixed jig and cut off through a wire cutting process, so that a final product body is obtained, and the MIM injection molding blank has the advantages of simplicity in operation, high efficiency and low cost.
It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present utility model, and such equivalents are intended to fall within the scope of the claims appended hereto.
Claims (5)
1. The utility model provides a cavity class ultra-thin wall metal product injection moulding structure, includes product main part (1), its characterized in that set up in the product main part and link the material structure, link the material structure including setting up at the top on product main part upper portion and link material structure (5), still including setting up in the even material door plant structure (2) of product main part lower part, even material door plant structure open in the bottom and have big mouth of a river.
2. The injection molding structure of the hollow ultra-thin-wall-like metal product according to claim 1, wherein the two outer side parts of the connecting door plate structure are provided with a sub-runner (3), the two sub-runners are connected to a main runner (4), and a plurality of sub-runner inlets are formed in the sub-runner.
3. The injection molding structure of a hollow ultra-thin wall-like metal product according to claim 2, wherein the sprue is in a "U" shape and covers the material door plate structure.
4. The injection molding structure of the hollow ultra-thin-wall-like metal product according to claim 1 or 3, wherein the connecting door plate is structurally provided with a large water gap glue opening consistent with the lower end opening of the product main body.
5. The injection molding structure of a hollow ultra-thin wall-like metal product according to claim 1, wherein the top connecting structure is provided with a plurality of injection molding exhaust holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223566493.4U CN219171547U (en) | 2022-12-30 | 2022-12-30 | Injection molding structure of hollow ultrathin-wall metal product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223566493.4U CN219171547U (en) | 2022-12-30 | 2022-12-30 | Injection molding structure of hollow ultrathin-wall metal product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219171547U true CN219171547U (en) | 2023-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223566493.4U Active CN219171547U (en) | 2022-12-30 | 2022-12-30 | Injection molding structure of hollow ultrathin-wall metal product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219171547U (en) |
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2022
- 2022-12-30 CN CN202223566493.4U patent/CN219171547U/en active Active
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