CN220008065U - Injection molding open pore structure - Google Patents
Injection molding open pore structure Download PDFInfo
- Publication number
- CN220008065U CN220008065U CN202320958114.1U CN202320958114U CN220008065U CN 220008065 U CN220008065 U CN 220008065U CN 202320958114 U CN202320958114 U CN 202320958114U CN 220008065 U CN220008065 U CN 220008065U
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- Prior art keywords
- injection molding
- sinking table
- mounting hole
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- model
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 50
- 239000011148 porous material Substances 0.000 title abstract description 9
- 238000004080 punching Methods 0.000 claims abstract description 10
- 230000007704 transition Effects 0.000 claims abstract description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 6
- 238000003466 welding Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005206 flow analysis Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000010354 integration Effects 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
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses an open pore structure of an injection molding piece, which comprises an injection molding piece body, wherein the injection molding piece body is provided with a sinking table, the depth of the sinking table is 0-20mm, an included angle a between a flanging of the sinking table and the normal direction of the injection molding piece body is more than or equal to 3 degrees, the sinking table is provided with a mounting hole, the periphery b of the mounting hole is in transition of round corners, and the round corners are more than or equal to 1mm. The utility model has simple structure, the sinking table is integrally molded on the existing injection molding body, after injection molding, punching is carried out on the sinking table, the appearance quality of the injection molding in the injection molding process is ensured, the defect of generating welding marks is avoided, and the requirement of installing environmental parts is met.
Description
Technical Field
The utility model belongs to the field of injection molding parts, and particularly relates to an open pore structure of an injection molding part.
Background
In order to meet the requirements of increasingly novel modeling and assembly integrated design, more injection molding parts on automobiles need to be integrated with environmental parts, such as integration design of a fender, a side lamp and a camera, tail gate, lamp and license plate matching, bumper and trailer matching and the like, in order to meet the installation requirements of the environmental parts, opening design needs to be carried out on the injection molding parts, but for the injection molding parts, whether the injection molding parts are provided with mounting holes through direct injection molding of an injection molding die on the outer surface or injection molding of mounting holes at a sinking table, defects of weld marks can be generated, so that aesthetic feeling of the appearance of the automobile body is reduced, and the technical problem that the problem of weld marks caused by opening holes can be avoided when the injection molding parts are installed with the environmental parts is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The utility model aims to solve the problems and provide an open pore structure of an injection molding part, wherein the open pore structure is formed by integrally injecting a sinking table at a position of the injection molding part, which is required to be provided with a mounting hole, after injection molding, a design method of a punching process is adopted at the sinking table, so that the appearance quality of the injection molding part in the injection molding process is ensured, the defect of generating welding marks is avoided, the precision is ensured, and the requirement of mounting with environmental parts is met.
In order to achieve the above purpose, the utility model provides an injection molding piece open pore structure, which comprises an injection molding piece body, wherein the injection molding piece body is provided with a sinking table, the sinking table and the injection molding piece body are integrally injection molded, the sinking table is punched with a mounting hole, the periphery b of the mounting hole is in round corner transition, and the punching direction of the mounting hole is in the same direction.
As further optimization, the included angle a between the flanging of the sinking table and the normal direction of the injection molding part body is more than or equal to 3 degrees.
As a further optimization, the depth of the sinking platform is 0-20mm.
As a further optimization, the round angle is larger than or equal to 1mm.
Advantages and beneficial effects of the utility model
According to the utility model, the sinking table structure is designed at the position where the environmental part is required to be installed on the plastic part body, the material flow direction is changed from convergence to smooth flow in the integral injection molding process of the plastic part body and the sinking table, the welding mark defect caused by material flow convergence is avoided through die flow analysis, and after the plastic part is cooled, a punching process is assisted on the sinking table, so that the problem of appearance quality caused by the hole opening of the injection molding part is solved, the installation precision is ensured, and the requirement on the installation of the environmental part is met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only embodiments of the present utility model, and other drawings may be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an injection molding sinking table without holes provided by an embodiment of a fender according to the utility model;
FIG. 2 is a cross-sectional view taken along the direction A-A of FIG. 1 in accordance with the present utility model;
FIG. 3 is a schematic view of a fender of the present utility model after punching at an injection molding sinking table;
FIG. 4 is a cross-sectional view taken along the direction B-B in FIG. 3 in accordance with the present utility model;
FIG. 5 is an enlarged view of the mounting hole C of FIG. 3 (this mounting hole being punched in the same direction) in accordance with the present utility model;
fig. 6 is a schematic view of the mounting hole of the present utility model punched in multiple directions.
Detailed Description
The utility model takes a plastic fender as an example for description, the injection molding fender is an appearance part, an injection molding mounting hole can be converged at an opening to generate weld mark defects due to material flow factors, if the opening of the injection molding is definitely set to not accept the weld mark defects, the open pore structure can be used for solving the weld mark risks of the appearance of a product.
As shown in figures 1-5, an open pore structure of an injection molding part comprises an injection molding part body 1, the thickness of the injection molding part body 1 is designed to be 3-3.2mm, a sinking table 2 is integrally injected on the injection molding part body 1, the depth of the sinking table 2 is 0-20mm, the included angle a of the flanging of the sinking table 2 with the normal direction of the injection molding part body 1 is more than or equal to 3 degrees, the included angle a is more than or equal to 3 degrees, the injection molding part body 1 and the sinking table 2 are convenient to demold, if a mounting hole 3 collides with surrounding parts, the minimum limiting included angle a can be set to 1 degree, the sinking table 2 is provided with the mounting hole 3, the periphery b of the mounting hole 3 is in a fillet transition, the fillet is more than or equal to 1mm, an operator is prevented from being scratched when the sinking table is installed with surrounding parts, the mounting hole 3 is punched in the same direction through a punching machine, the graph of punching in the same direction is as shown in figure 5, the rest of the sinking table 2 is positioned on the same horizontal plane, the mounting precision is high, and if the graph of punching is punched in the same direction, the graph in the same horizontal plane, the punching direction is shown in figure 6, the rest of the sinking table is not capable of being mounted on the same horizontal plane, and the surrounding parts cannot be mounted on the surrounding parts.
The utility model is obtained by testing the existing injection molding part fender of various vehicle types such as ULAI ES6, ES8, BMW X5 and the like, and carrying out product standard alignment, die flow analysis, sample verification and mass production summarization on the basis of the existing fender design project.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the embodiments of the present utility model, and are not limited thereto; although embodiments of the present utility model have been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions.
Claims (4)
1. An injection molding open cell structure, its characterized in that: including injection molding body (1), have on injection molding body (1) and sink platform (2), sink platform (2) and injection molding body (1) integrative injection molding, it has mounting hole (3) to sink to punch on platform (2), b is the fillet transition around mounting hole (3), the direction of punching a hole of mounting hole (3) is same direction.
2. An injection molded part open cell structure according to claim 1, wherein: the included angle a between the flanging of the sinking table (2) and the normal direction of the injection molding body (1) is more than or equal to 3 degrees.
3. An injection molded part open cell structure according to claim 1, wherein: the depth of the sinking table (2) is 0-20mm.
4. An injection molded part open cell structure according to claim 1, wherein: the round angle is more than or equal to 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320958114.1U CN220008065U (en) | 2023-04-25 | 2023-04-25 | Injection molding open pore structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320958114.1U CN220008065U (en) | 2023-04-25 | 2023-04-25 | Injection molding open pore structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220008065U true CN220008065U (en) | 2023-11-14 |
Family
ID=88671198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320958114.1U Active CN220008065U (en) | 2023-04-25 | 2023-04-25 | Injection molding open pore structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220008065U (en) |
-
2023
- 2023-04-25 CN CN202320958114.1U patent/CN220008065U/en active Active
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