CN215039882U - Injection molding structure with boss - Google Patents
Injection molding structure with boss Download PDFInfo
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- CN215039882U CN215039882U CN202120739574.6U CN202120739574U CN215039882U CN 215039882 U CN215039882 U CN 215039882U CN 202120739574 U CN202120739574 U CN 202120739574U CN 215039882 U CN215039882 U CN 215039882U
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- injection molding
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- boss portion
- core
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Abstract
The utility model discloses an injection moulding structure with boss, include: a component body formed by injection molding; the part body is integrally formed with the boss part, and the boss part is arranged opposite to a core-pulling needle of the injection molding machine. When the part body is in the injection molding cavity, the boss part and the core pulling needle are oppositely arranged. The technical effect of the technical scheme is as follows: since the core pulling needle is fixed to the metal member in the component through the corresponding guide hole, the boss portion must be formed by flowing the solution into the guide hole because the boss portion and the core pulling needle are oppositely arranged. Although the present invention protects the location and structure of the boss portion, it essentially also implies how the boss portion is shaped. The technical scheme can effectively prevent cracks or gaps from appearing on the surface of the product, and effectively improves the integrity of the surface of the product.
Description
Technical Field
The utility model relates to an injection moulding makes technical field, concretely relates to injection moulding structure with boss.
Background
In the injection molding process, the injection molding machine injects the melted raw materials into a mold, and then the mold is cooled and molded to form a product; the loose core is generally used for positioning the product in the process. The metal piece pre-placed in the die melting cavity can shake due to factors such as pressure, speed and the like of glue injection in the injection molding process, so that the installation effect of a product and the metal piece cannot be achieved; the core pulling needle is rented by abutting the metal piece in the melting cavity, so that the metal piece is not shaken, the metal piece can be effectively combined with a product, and finally the core pulling needle is withdrawn.
However, although the metal piece and the glue solution are combined, the glue solution can be integrally formed with the metal piece after being cooled. However, in the process of withdrawing the core-pulling needle, a gap is generated or a crack is generated on the surface of the product, and therefore, a new technical solution is needed to solve the technical problem.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model discloses an injection moulding structure with boss, through set up boss portion on the part body, and boss portion sets up with the needle of loosing core relatively to hole or space or the crackle that produces when the needle of loosing core withdraws from can be avoided, thereby the metalwork of having avoided the part parcel exposes in the air.
Specifically, the utility model discloses an injection moulding structure with boss, include: a component body formed by injection molding; the part body is integrally formed with the boss part, and the boss part is arranged opposite to a core-pulling needle of the injection molding machine. When the part body is in the injection molding cavity, the boss part and the core pulling needle are oppositely arranged.
The technical effect of the technical scheme is as follows: since the core pulling needle is fixed to the metal member in the component through the corresponding guide hole, the boss portion must be formed by flowing the solution into the guide hole because the boss portion and the core pulling needle are oppositely arranged. Although the present invention protects the location and structure of the boss portion, it essentially also implies how the boss portion is shaped. The technical scheme can effectively prevent cracks or gaps from appearing on the surface of the product, and effectively improves the integrity of the surface of the product.
Specifically, the core-pulling needle withdraws from the die when the solution is not completely solidified, namely, the metal piece can be fixed, and cracks or gaps can be effectively avoided on the surface of the product.
Preferably, the number of the boss portions is plural, and the plural boss portions are located on the same plane of the component body. When a plurality of bosses that leave after loosing core and fix the metalwork in to the part body, can effectively improve the location effect to the metalwork to avoid the offset of metalwork and part body.
Preferably, the boss portion is cylindrical, and an axis of the boss portion is perpendicular to a surface of the component body facing the boss portion.
Preferably, the boss part and the axial direction of the core pulling needle are positioned on the same straight line. Further, the diameter of the boss part is the same as that of the core drawing needle. The core-pulling needle is withdrawn from the guide hole in the mold, and then the solution flows into the guide hole and forms the boss portion.
Preferably, the height of the boss portion in the axial direction thereof is between 0.05 and 0.15 mm.
Preferably, a plurality of positioning pins are arranged on the component body. Furthermore, a plurality of mounting holes are formed in the component body. The installation of the component body is facilitated.
Preferably, a metal part is fixed in the part body, and a part valley is arranged on the outer peripheral surface of the metal part.
In addition, the present application also provides an injection molding machine for producing the above injection molding structure with a boss, comprising:
the mould assembly is provided with an injection molding cavity for producing the part body, and the mould assembly is provided with an injection molding hole communicated with the injection molding cavity;
the injection molding machine comprises an injection molding machine body, wherein a liquid supply end of the injection molding machine body penetrates through the injection molding hole and extends into the injection molding cavity, the core pulling needle is arranged on the injection molding machine body and penetrates through a guide hole of the mold assembly and extends into the injection molding cavity, and the core pulling is pressed against a metal piece in the injection molding cavity.
In the technical scheme, the core pulling is pressed against the metal piece, so that the molten liquid in the injection molding cavity is solidified and then integrally formed with the metal piece.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly described below.
FIG. 1 is a schematic perspective view of an injection-molded structure having a boss according to examples 1 and 2;
FIG. 2 is a schematic structural view in a top view of an injection-molded structure having a boss according to examples 1 and 2;
fig. 3 is a schematic structural view of injection molding of the injection molding structure having the bosses in embodiment 1, embodiment 2, and embodiment 3.
Wherein reference numerals referred to in the drawings are as follows:
11-a component body; 12-a boss portion; 13-a core-pulling needle; 14-a locating pin; 15-mounting holes; 16-a metal part; 17-a mould assembly; 18-injection molding of the cavity.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 3, the present embodiment discloses an injection molding structure having a boss, including: a component body 11, the component body 11 being formed by injection molding; a boss portion 12, the boss portion 12 being integrally formed with the component body 11, and the boss portion 12 being provided opposite to a core back needle 13 of the injection molding machine.
The technical effect of the technical scheme is as follows: since the core pulling needle 13 is fixed to the metal member 16 in the component through the corresponding guide hole, the boss portion 12 must be formed by flowing the solution into the guide hole because the boss portion 12 and the core pulling needle 13 are disposed opposite to each other. Although the present invention protects the location and configuration of the boss portion 12, it essentially implies how the boss portion 12 is formed. The technical scheme can effectively prevent cracks or gaps from appearing on the surface of the product, and effectively improves the integrity of the surface of the product. Specifically, the core-pulling needle 13 is withdrawn from the mold when the solution is not completely solidified, that is, the metal piece 16 can be fixed, and cracks or gaps on the surface of the product can be effectively avoided.
In one embodiment of the present embodiment, the number of the boss portions 12 is plural, and the plural boss portions 12 are located on the same surface of the component body 11. When the plurality of core drawing pins 13 are used for fixing the metal piece 16 in the component body 11, the boss part 12 is left, so that the positioning effect of the metal piece 16 can be effectively improved, and the position deviation of the metal piece 16 and the component body 11 is avoided.
As an embodiment of the present embodiment, a metal fitting 16 is fixed to the member body 11, and a member valley is provided on an outer peripheral surface of the metal fitting 16.
As an embodiment of the present embodiment, the boss portion 12 is cylindrical, and the axis of the boss portion 12 is perpendicular to a surface of the member body 11 facing the boss portion 12.
In one embodiment of the present embodiment, the axial direction of the boss 12 and the axial direction of the core pulling needle 13 are located on the same straight line. Further, the boss portion 12 has the same diameter as the core back needle 13. The core-pulling pin 13 is withdrawn from the guide hole in the mold, and then the solution flows into the guide hole and forms the boss portion 12.
As an embodiment of the present embodiment, the height of the boss portion 12 in the axial direction thereof is between 0.05 and 0.15 mm.
Example 2
As shown in fig. 1 and 2, for effective installation of the component body 11, the component body 11 of the present embodiment is provided with a plurality of positioning pins 14. Furthermore, the component body 11 is provided with a plurality of mounting holes 15. The mounting of the component body 11 is facilitated.
Example 3
As shown in fig. 3, the present embodiment proposes an injection molding machine for producing the above injection molding structure having a boss, comprising:
the mould component 17 is provided with an injection molding cavity 18 used for producing the component body 11, and the mould component 17 is provided with an injection molding hole communicated with the injection molding cavity 18;
the injection molding machine comprises an injection molding machine body, wherein a liquid supply end of the injection molding machine body penetrates through an injection molding hole and extends into an injection molding cavity 18, a core pulling needle 13 is arranged on the injection molding machine body, the core pulling needle 13 penetrates through a guide hole of a mold assembly 17 and extends into the injection molding cavity 18, and the core pulling needle 13 compresses a metal piece 16 in the injection molding cavity 18.
In the technical scheme, the metal piece 16 is compressed by the core-pulling needle 13, so that the molten liquid in the injection molding cavity 18 is solidified and then integrally formed with the metal piece 16.
For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (10)
1. An injection molding structure having a boss, comprising:
a component body formed by injection molding;
the part body is integrally formed with the boss part, and the boss part is arranged opposite to a core-pulling needle of the injection molding machine.
2. An injection molding structure with a boss according to claim 1, wherein the number of the boss portions is plural, and plural boss portions are located on the same plane of the component body.
3. An injection molding structure with a boss according to claim 2, wherein the boss portion is cylindrical, and an axis of the boss portion is perpendicular to a face of the component body facing the boss portion.
4. The injection molding structure with a boss according to claim 3, wherein the boss portion is located on the same line as an axial direction of the core pulling pin.
5. The injection molding structure with a boss according to claim 4, wherein a diameter of the boss portion is the same as a diameter of the core pulling pin.
6. An injection molding structure with a boss according to claim 4, wherein the height of the boss portion in its axial direction is between 0.05-0.15 mm.
7. The injection molding structure with a boss according to claim 2, wherein a plurality of positioning pins are provided on the component body.
8. The injection molding structure with a boss according to claim 7, wherein the component body is provided with a plurality of mounting holes.
9. The injection molding structure with a boss according to claim 1, wherein a metal piece is fixed in the component body.
10. An injection molding machine for producing the injection molding structure having the boss according to any one of claims 1 to 9, characterized by comprising:
the mould assembly is provided with an injection molding cavity for producing the part body, and the mould assembly is provided with an injection molding hole communicated with the injection molding cavity;
the injection molding machine comprises an injection molding machine body, wherein a liquid supply end of the injection molding machine body penetrates through the injection molding hole and extends into the injection molding cavity, the core pulling needle is arranged on the injection molding machine body and penetrates through a guide hole of the mold assembly and extends into the injection molding cavity, and the core pulling is pressed against a metal piece in the injection molding cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120739574.6U CN215039882U (en) | 2021-04-12 | 2021-04-12 | Injection molding structure with boss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120739574.6U CN215039882U (en) | 2021-04-12 | 2021-04-12 | Injection molding structure with boss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215039882U true CN215039882U (en) | 2021-12-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120739574.6U Active CN215039882U (en) | 2021-04-12 | 2021-04-12 | Injection molding structure with boss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215039882U (en) |
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2021
- 2021-04-12 CN CN202120739574.6U patent/CN215039882U/en active Active
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