CN213412719U

CN213412719U - Plastic part nut embedding structure

Info

Publication number: CN213412719U
Application number: CN202021869739.3U
Authority: CN
Inventors: 侯泽宏
Original assignee: Shenzhen Dongchuang Technology Co Ltd
Current assignee: Shenzhen Dongchuang Technology Co Ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-06-11
Anticipated expiration: 2030-08-28

Abstract

The utility model relates to a plastic part nut is planted and is buried structure. The plastic part body is provided with a raised nut column, the nut column and the plastic part body are formed by the same material through integral injection molding, a nut is embedded into the nut column along the axial direction of the nut column, and the inner wall of the nut column is completely attached to the outer surface of the nut; the outer end of the nut is flush with the outer end face of the nut column, and the diameter of the outer end of the nut is smaller than that of the inner end of the nut; the outer diameters of the nut columns are equal from the outer end of the nut to the inner end of the nut. The utility model discloses a set up the nut both ends diameter different, let the nut post can pile up more plastics in the outer end, also be exactly that the nut post is thicker in the outer end, consequently after the cooling, even there is stress in nut post outer end, also not easy because stress cracking, the yields of plastic part obtains improving, is favorable to reduction in production cost.

Description

Plastic part nut embedding structure

Technical Field

The utility model relates to an injection molding structure especially relates to a plastic part nut is planted and is buried structure.

Background

Injection molding is a method for producing and molding industrial products. The products are generally produced by rubber injection molding and plastic injection molding. The injection molding can be classified into injection molding and die casting. An injection molding machine (an injection machine or an injection molding machine for short) is a main molding device for making thermoplastic plastics or thermosetting materials into plastic products with various shapes by using a plastic molding die. Injection molding is accomplished by an injection molding machine and a mold.

Injection molding processes sometimes require metal nuts to be embedded directly into the raised nut posts of the plastic part during molding. The existing nuts are all of standard symmetrical structures (the outer diameters are consistent), so that after the nut column is cooled, the stresses of the root part and the outer end of the nut column are different, the stress of the outer end of the nut column is larger, and the outer end of the nut column is easy to crack due to the stress and needs to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's above defect, and provide a plastic part nut and plant and bury structure, make the nut post be difficult to because stress cracking improves the yields.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a nut embedding structure for a plastic part is characterized in that a raised nut column is arranged on a plastic part body, the nut column and the plastic part body are formed by the same material through integral injection molding, a nut is embedded into the nut column along the axial direction of the nut column, and the inner wall of the nut column is completely attached to the outer surface of the nut; the outer end of the nut is flush with the outer end face of the nut column, the inner end of the nut faces the joint of the nut column and the plastic part body, and the diameter of the outer end of the nut is smaller than that of the inner end of the nut; the outer diameters of the nut columns are equal from the outer end of the nut to the inner end of the nut.

The inner end of the nut is provided with a convex first ring, and the outer diameter of the first ring is larger than the diameter of the outer end of the nut.

A second convex ring is arranged outside the middle position of the nut, the outer diameter of the second ring is equal to that of the first ring, and the thickness of the first ring is larger than that of the second ring.

An annular groove is formed between the first ring and the second ring, an annular boss which is placed in the annular groove is arranged on the nut post, and the annular boss is matched with the annular groove to fix the nut in the nut post.

The nut is a metal nut.

Compared with the prior art, the utility model beneficial effect be: through setting up the nut both ends diameter difference, let the nut post can pile up more plastics in the outer end, also be exactly the nut post is thicker in the outer end, consequently after the cooling, even there is stress in the nut post outer end, also not easy because stress cracking, the yields of plastic part obtains improving, is favorable to reduction in production cost.

Drawings

Fig. 1 is an illustration of the plastic part of the present invention.

Fig. 2 is a sectional view of the implant structure of the present invention.

It should be noted that, the products shown in the above views are all appropriately reduced/enlarged according to the size of the drawing and the clear view, and the size of the products shown in the views is not limited.

Detailed Description

In order to more fully understand the technical content of the present invention, the technical solution of the present invention will be further described and explained with reference to the specific embodiments.

The embodiment of the utility model provides a structure that nut 20 plants and buries on plastic part 100. Fig. 1 shows an external view of a plastic member 100 for an external cover. The plastic part 100 of fig. 1 is provided with a plurality of nut columns 10, and a metal nut 20 is embedded in each of the nut columns 10.

Fig. 2 shows a cross-sectional view of the structure in which the nut 20 is embedded in the plastic part 100. As shown in fig. 2, the plastic part 100 is provided with a raised nut post 10 on its body. The nut column 10 and the body of the plastic part 100 are formed by injection molding of the same material. The nut 20 is embedded in the nut post 10 axially along the nut post 10. The nut 20 is also embedded and fixed in the nut post 10 at the same time when the plastic member 100 is injection molded, so that the inner wall of the nut post 10 is completely adhered to the outer surface of the nut 20. The outer end 29 of the nut 20 is flush with the outer end face 19 of the nut post 10, while the inner end 28 of the nut 20 is directed towards and close to the plane of the joint 18 of the nut post 10 and the body of the plastic 100. The outer end 29 of the nut 20 is smaller in diameter than the inner end 28 of the nut 20. In particular, the inner end 28 of the nut 20 is provided with a convex first ring 21, the outer diameter of the first ring 21 being larger than the diameter of the outer end 29 of the nut 20. While the outer diameter of the nut post 10 remains equal from the outer end 29 of the nut 20 to the inner end 28 of the nut 20, the nut post 10 is relatively thicker at the location corresponding to the outer end 29 of the nut 20 and is also more resistant to the effects of stress.

In addition, as shown in fig. 2, a second ring 22 protruding outward is provided outside the middle position of the nut 20. The outer diameter of the second ring 22 is equal to the outer diameter of the first ring 21, but the thickness of the first ring 21 is greater than the thickness of the second ring 22. An annular groove 212 is provided between the first ring 21 and the second ring 22. The nut post 10 is provided with an annular boss 11 which is arranged in the annular groove 212, and the nut 20 can be clamped and fixed in the nut post 10 by the annular boss 11 and the annular groove 212 in a matching way, so that the nut 20 is prevented from being pulled out by external force.

The utility model discloses a setting up 20 both ends diameters of nut different, letting nut post 10 can pile up more plastics in the outer end, also be nut post 10 thicker in the outer end, consequently after the cooling, even there is stress in nut post 10 outer end, also not easy because stress cracking, the yields of plastic part 100 obtains improving, is favorable to reduction in production cost.

The above description is only for the purpose of illustrating the technical content of the present invention by way of example, so as to facilitate the understanding of the reader, but does not represent that the embodiments of the present invention are limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention.

Claims

1. A nut embedding structure for a plastic part is characterized in that a raised nut column is arranged on a plastic part body, the nut column and the plastic part body are formed by integrally injecting the same material, the nut is embedded into the nut column along the axial direction of the nut column, and the inner wall of the nut column is completely attached to the outer surface of the nut; the outer end of the nut is flush with the outer end face of the nut column, the inner end of the nut faces to the plane of the joint of the nut column and the plastic part body, and the diameter of the outer end of the nut is smaller than that of the inner end of the nut; the outer diameters of the nut columns are equal from the outer end of the nut to the inner end of the nut.

2. The plastic nut implanting structure as claimed in claim 1, wherein the inner end of the nut is provided with a first ring protruding outward, and the outer diameter of the first ring is larger than the outer end diameter of the nut.

3. The implant structure of claim 2, wherein a second ring protruding outward is provided outside the middle position of the nut, the second ring has an outer diameter equal to that of the first ring, and the first ring has a thickness greater than that of the second ring.

4. The plastic nut implanting structure as claimed in claim 3, wherein an annular groove is formed between the first ring and the second ring, and the nut post has an annular projection embedded in the annular groove, the annular projection cooperating with the annular groove to fix the nut in the nut post.

5. The plastic nut implanting structure according to claim 1, wherein the nut is a metal nut.