CN212875876U

CN212875876U - Molding block

Info

Publication number: CN212875876U
Application number: CN202022053840.8U
Authority: CN
Inventors: 杨通举; 陈人武; 覃炳燊; 陈徐
Original assignee: Dongguan Zhengkun Precision Products Co ltd
Current assignee: Dongguan Zhengkun Precision Products Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-04-02
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses a forming block, which comprises a stainless steel main body, wherein the main body consists of a first part, a second part and a third part, and the first part and the third part are distributed in parallel; one end of the second part is vertically connected with the first part, and the other end of the second part is vertically connected with the third part; the left side face and the right side face of the third portion are respectively provided with an anti-falling lug, the anti-falling lugs are in a group, a gap is reserved in the middle, and the anti-falling lugs are distributed in an up-and-down symmetrical mode. The molding block and the plastic mobile phone shell are combined into a whole, and then the molding block can be welded and tapped after being milled to the designed size.

Description

Molding block

Technical Field

The utility model belongs to the technical field of the hardware fitting and specifically relates to indicate a shaping piece.

Background

Most of the mobile phone shell is made of plastic materials and is manufactured by adopting an injection molding process. The mobile phone shell is used for protecting components inside the mobile phone, and the performance of the mobile phone cannot be affected, so that the mobile phone shell needs to have certain elasticity, falling resistance, shock resistance and good heat dissipation, and particularly, the existing mobile phone is lighter and thinner, the quality of the existing mobile phone is also lighter, and the corresponding mobile phone shell is also thinner. The plastic mobile phone shell with the characteristics brings the strength of the plastic mobile phone shell to be lowered, and tapping and welding cannot be performed on the plastic mobile phone shell. However, the mobile phone often needs to be fixed by screws and welded during assembly, so that the plastic mobile phone shell cannot meet the requirements. In order to solve the problem that the plastic mobile phone shell cannot be used for tapping and welding, a molding block is required to be provided, the molding block can be combined with the plastic mobile phone shell, and the molding block can be used for tapping and welding.

Disclosure of Invention

In view of the above, the present invention is directed to the deficiency of the prior art, and the main objective of the present invention is to provide a forming block, which not only has a simple structure and can be tightly and firmly combined with a plastic mobile phone housing, but also can be used for tapping and welding on the forming block, thereby overcoming the deficiencies of the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the application example provides a forming block, which comprises a stainless steel main body, wherein the thickness T of the main body is between 1 and 2 mm; the main body consists of a first part, a second part and a third part, wherein the length L1 of the first part is between 3 and 5mm, and the width W1 is between 1.0 and 1.4 mm; the length L2 of the second part is between 1.1 and 1.5mm, and the width W2 is between 1.5 and 2.5 mm; the length L3 of the third part is between 3-5mm, and the width W3 is between 1.3-1.7 mm; the first part and the third part are distributed in parallel; one end of the second part is vertically connected with the first part, and the other end of the second part is vertically connected with the third part; the left side face and the right side face of the third portion are respectively provided with an anti-falling lug, the length L4 of the anti-falling lugs is between 0.3 mm and 0.6mm, the width W4 of the anti-falling lugs is between 0.2 mm and 0.5mm, the anti-falling lugs are in a group, a gap is reserved between the anti-falling lugs, and the anti-falling lugs are distributed in an up-and-down symmetrical mode.

Preferably, in the molding block, a perpendicular connection point of the first portion and the second portion is located in the middle of the first portion, and a perpendicular connection point of the second portion and the third portion is located in the middle of the third portion.

Furthermore, the forming block is provided with an inclined plane on the left side surface and an inclined plane on the right side surface respectively, and the inclined planes are positioned between the upper anti-falling lug and the lower anti-falling lug.

Preferably, the outer peripheral surface of the third portion of the forming block is provided with a milling line.

Preferably, in the molding block, the first portion, the second portion, the third portion, and each corner of the anti-drop protrusion have a rounded structure.

Furthermore, the molding block, the first portion, the second portion, the third portion and the anti-dropping bump are of an integrally molded structure.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme, become the mould piece and combine in plastic cell phone case injection moulding an organic whole. The first part, the second part and the third part on the main body are simple in structure, so that the main body can be tightly combined with the plastic mobile phone shell, and particularly the formed forming block and the plastic mobile phone shell are firmly combined into a whole and are not easy to loosen due to the arranged anti-falling convex block. Because the forming block is made of stainless steel, welding and tapping can be performed on the forming block.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is an overall schematic diagram of an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of an embodiment of the present invention.

The attached drawings indicate the following:

10. main body 11, first part

12. Second part, 13, corner position

20. Third portion 21, anti-slip projection

22. Gap 23, inclined plane

24. Milling tangent line 25, left side

26. The right side surface.

Detailed Description

Referring to fig. 1 to 2, a specific structure of a preferred embodiment of the present invention is shown, which is a forming block.

The stainless steel forming block and the plastic mobile phone shell are combined in an injection molding mode, so that welding and tapping can be carried out on the forming block. The first part, the second part and the third part which are arranged on the main body are simple in structure, so that the plastic mobile phone shell can be tightly combined, and particularly the anti-falling lug which is arranged can enable the forming block to be firmly combined with the plastic mobile phone shell into a whole and not to be easily loosened.

For better understanding of the above technical solutions, the following detailed description is made with reference to the accompanying drawings.

Examples

As shown in fig. 1 to 2, the forming block comprises a body 10 made of stainless steel, the thickness T of the body 10 is between 1 and 2 mm; the main body 10 is composed of a first part 11, a second part 12 and a third part 20, wherein the length L1 of the first part 11 is between 3 and 5mm, and the width W1 is between 1.0 and 1.4 mm; the length L2 of the second part 12 is between 1.1-1.5mm, and the width W2 is between 1.5-2.5 mm; the length L3 of the third part 20 is between 3-5mm, and the width W3 is between 1.3-1.7 mm; the first part 11 and the third part 20 are distributed in parallel; one end of the second part 12 is vertically connected to the first part 11, and the other end is vertically connected to the third part 20; the left side surface 25 and the right side surface 26 of the third part 20 are respectively provided with anti-falling lugs 21, the length L4 of the anti-falling lugs 21 is between 0.3 and 0.6mm, the width W4 is between 0.2 and 0.5mm, the anti-falling lugs 21 are in a group, a gap 22 is reserved between the two anti-falling lugs, and the anti-falling lugs are distributed in an up-and-down symmetrical manner. After the stainless steel forming block is combined with the plastic mobile phone shell in an injection molding mode, the first part 11 and the third part 20 are distributed in parallel; one end of the second part 12 is vertically connected to the first part 11, so that the molding block cannot rotate after being combined by injection molding. Because the first part 11, the second part 12 and the third part 20 are all in a columnar structure and have simple structures, the first part 11, the second part 12 and the third part 20 cannot rotate after being combined by injection molding, and can be tightly combined with a plastic mobile phone shell. The anti-falling lugs 21 arranged on the left side surface 25 and the right side surface 26 of the third part 20 can prevent the forming blocks from being pulled out and loosened after injection molding and combination. Two anti-falling lugs 21 are in a group, a gap 22 is reserved in the middle, the anti-falling lugs are distributed in an up-and-down symmetrical mode, plastic can flow in the gap 22 during injection molding, steam pockets are avoided, and injection molding quality is guaranteed. After the molding block is combined with the plastic mobile phone shell in an injection molding mode, tapping and welding can be carried out on the molding block, or after the molding block is combined with the plastic mobile phone shell in an injection molding mode, the molding block is milled and cut firstly, and then tapping and welding are carried out.

Preferably, in the molding block, a perpendicular connection point of the first portion 11 and the second portion 12 is located in the middle of the first portion 11, and a perpendicular connection point of the second portion 12 and the third portion 20 is located in the middle of the third portion 20. The perpendicular connection points of the second portion 12 to the first and

third portions

11, 20 are both intermediate and therefore symmetrically disposed, which provides for even forces.

Furthermore, in the forming block, the left side surface 25 and the right side surface 26 are respectively provided with an inclined surface 23, and the inclined surface 23 is located between the upper and lower anti-falling lugs 21. The inclined surface 23 is convenient to arrange, so that gas can be discharged along the inclined surface 23 when injection molding is carried out, and bubbles are prevented from being generated.

Preferably, in the molding block, a milled line 24 is provided on the outer peripheral surface of the third portion 20. The mill cut line 24 may be used as a marker for viewing when milling.

Preferably, in the molding block, each corner position 13 of the first portion 11, the second portion 12, the third portion 20, and the anti-slip bump 21 is a rounded structure. The design of corner position 13 can avoid sharp-pointed edges and corners to cut for the fillet structure on the one hand, and on the other hand fillet structure can increase the stress surface, avoids stress concentration.

Furthermore, the molding block, the first portion 11, the second portion 12, the third portion 20, and the anti-slip bump 21 are integrally molded. First portion 11, second portion 12, third portion 20, anticreep lug 21 are integrated into one piece's structure for the shaping piece structure is firm, and the wholeness is strong.

To sum up, the utility model discloses a design focus lies in, and it combines through moulding plastics with the shaping piece of stainless steel and plastic cell phone case, makes can weld and attack the tooth on the shaping piece. The first part 11, the second part 12 and the third part 20 arranged on the main body 10 are simple in structure and can be tightly combined with the plastic mobile phone shell, and particularly the anti-falling lug 21 can enable the forming block to be firmly combined with the plastic mobile phone shell into a whole and not to be easily loosened.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. A shaped block, comprising: comprises a body of stainless steel having a thickness T of between 1 and 2 mm; the main body consists of a first part, a second part and a third part, wherein the length L1 of the first part is between 3 and 5mm, and the width W1 is between 1.0 and 1.4 mm; the length L2 of the second part is between 1.1 and 1.5mm, and the width W2 is between 1.5 and 2.5 mm; the length L3 of the third part is between 3-5mm, and the width W3 is between 1.3-1.7 mm; the first part and the third part are distributed in parallel; one end of the second part is vertically connected with the first part, and the other end of the second part is vertically connected with the third part; the left side face and the right side face of the third portion are respectively provided with an anti-falling lug, the length L4 of the anti-falling lugs is between 0.3 mm and 0.6mm, the width W4 of the anti-falling lugs is between 0.2 mm and 0.5mm, the anti-falling lugs are in a group, a gap is reserved between the anti-falling lugs, and the anti-falling lugs are distributed in an up-and-down symmetrical mode.

2. A forming block according to claim 1, characterized in that: the vertical connection point of the first part and the second part is positioned in the middle of the first part, and the vertical connection point of the second part and the third part is positioned in the middle of the third part.

3. A forming block according to claim 1, characterized in that: the left side face and the right side face are respectively provided with an inclined face which is positioned between the upper anti-falling lug and the lower anti-falling lug.

4. A forming block according to claim 1, characterized in that: and a milling tangent line is arranged on the peripheral surface of the third part.

5. A forming block according to claim 1, characterized in that: and the corner positions of the first part, the second part, the third part and the anti-falling lug are of a round angle structure.

6. A forming block according to claim 1, characterized in that: the first part, the second part, the third part and the anti-falling lug are of an integrally formed structure.