CN209971383U - Lid center integrated into one piece moulded plate subassembly behind cell-phone that can reduce rainbow line - Google Patents

Abstract

The utility model discloses a lid center integrated into one piece moulded board subassembly behind cell-phone that can reduce rainbow line, it relates to the cell-phone mould field, aims at solving traditional cell-phone dorsal scale and uses two sets of moulds to increase manufacturing cost's problem. The key points of the technical scheme are that the device comprises a cover template, a bottom template and a side template assembly which is born between the cover template and the bottom template and is connected with the cover template, wherein a mold cavity is formed among the cover template, the bottom template and the side template assembly; the side form assembly comprises two first side forms which are oppositely arranged and two second side forms which are oppositely arranged, and the cover form and the bottom form are respectively provided with a first cover groove and a first bottom groove which are matched with the first side forms, and a second cover groove and a second bottom groove which are matched with the second side forms. The utility model discloses can save one set of mould with lid and the integrative injection moulding of center behind the cell-phone, reduction in production cost can also improve cell-phone dorsal scale quality simultaneously, reduces the rainbow line.

Description

Lid center integrated into one piece moulded plate subassembly behind cell-phone that can reduce rainbow line

Technical Field

The utility model relates to a cell-phone mould field, more specifically say, it relates to a lid center integrated into one piece moulded board subassembly behind cell-phone that can reduce rainbow line.

Background

The existing mobile phone back shell mainly comprises plastic, metal, glass and ceramic, and in order to meet the increasingly improved aesthetic requirements of people, the appearance of the mobile phone back shell is also the direction of continuous research and improvement of manufacturers.

With the improvement of the process level, the defects of the plastic back shell are continuously improved, the cost is relatively low, more diversified appearances can be conveniently given, and the plastic back shell can become a mainstream material of the mobile phone back shell in the future.

At present, plastic mobile phone back shells on the market are generally divided into a rear cover and a middle frame, and the rear cover and the middle frame are respectively subjected to injection molding, but two sets of molds need to be designed and developed for producing the mobile phone back shells, so that the production cost of enterprises is increased.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a lid center integrated into one piece moulded plate subassembly behind cell-phone that can reduce the rainbow line, its lid and center behind the cell-phone that can integrated into one piece to can reduction in production cost.

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

a mobile phone rear cover middle frame integrated forming template assembly capable of reducing rainbow patterns comprises a cover template, a bottom template and a side template assembly, wherein the side template assembly is borne between the cover template and the bottom template and connected with the cover template;

the side form assembly comprises two first side forms which are oppositely arranged and two second side forms which are oppositely arranged, and the cover form and the bottom form are respectively provided with a first cover groove and a first bottom groove which are matched with the first side forms, and a second cover groove and a second bottom groove which are matched with the second side forms.

Further, be provided with on the lid template and stretch into the lid mould in the middle of the side form assembly, first side die cavity and second side die cavity have been seted up on first side form and the second side form respectively, be provided with on the die block board with the lid mould is relative and can stretch into die block in the middle of the side form assembly, the cavity that forms between lid mould, two first side die cavities, two second side die cavities and the die block is promptly the die cavity.

Furthermore, the cover plate is provided with a material injection hole communicated with the mold cavity, the bottom mold is provided with a first thimble hole and a second thimble hole respectively, and the first thimble hole and the second thimble hole are embedded with a first thimble and a second thimble respectively.

Furthermore, a first positioning block and a second positioning block are respectively arranged on the first side template and the second side template in a protruding mode, and a first positioning groove matched with the first positioning block and a second positioning groove matched with the second positioning block are respectively formed in the cover template.

Furthermore, the cover template is provided with four limiting plates which are respectively positioned at the top corners, and the bottom template is provided with limiting grooves matched with the limiting plates.

Furthermore, the bottom die plate is provided with a die hole matched with the bottom die.

Furthermore, the side wall of the bottom die is provided with a ring groove, and a rolling rod in contact with the inner wall of the die hole is embedded in the ring groove.

To sum up, the utility model discloses following beneficial effect has:

1. the cover die, the side die plate assembly and the bottom die are adopted, so that the rear cover and the middle frame can be integrally formed, a set of die is omitted, and the production cost is reduced;

2. the bottom die and the die holes are adopted, so that the product quality can be improved after compression;

3. the ring groove and the rolling rod are adopted, so that metal scraps generated by friction can be prevented from entering the die cavity, and the product quality is prevented from being influenced.

Drawings

FIG. 1 is a schematic diagram of an overall structure of an integrally formed mold plate assembly for a rear cover and a middle frame of a mobile phone, which can reduce rainbow patterns in an embodiment;

FIG. 2 is a schematic diagram of an exploded structure of an integrally formed mold plate assembly for a rear cover and a middle frame of a mobile phone capable of reducing rainbow patterns in an embodiment;

FIG. 3 is a schematic structural view of a cover template in the embodiment;

fig. 4 is a sectional view of an integrally formed mold plate assembly of a rear cover middle frame of a mobile phone capable of reducing rainbow patterns in the embodiment.

In the figure: 1. covering the template; 11. a first cover slot; 12. a second cover slot; 13. a limiting plate; 14. covering the mold; 15. a first positioning groove; 16. a second positioning groove; 17. a material injection hole; 2. a first side form; 21. a first positioning block; 22. a first side cavity; 3. a second side form; 31. a second positioning block; 32. a second side cavity; 4. bottom die; 41. a ring groove; 42. a first thimble; 43. a second thimble; 44. rolling a rod; 5. a bottom template; 51. a die hole; 52. a first bottom groove; 53. a second bottom groove; 54. a limiting groove; 6. a mold cavity.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Example (b):

a mobile phone rear cover middle frame integrated forming template assembly capable of reducing rainbow patterns refers to fig. 1 and 2 and comprises a cover template 1, a bottom template 5 and a side template assembly, wherein the side template assembly is borne between the cover template 1 and the bottom template 5 and is connected with the cover template 1; the side template assembly comprises two first side templates 2 arranged oppositely and two second side templates 3 arranged oppositely, and the cover template 1 and the bottom template 5 are respectively provided with a first cover groove 11 and a first bottom groove 52 matched with the first side templates 2, and a second cover groove 12 and a second bottom groove 53 matched with the second side templates 3; the first side formwork 2 is embedded in the first cover groove 11, the second side formwork 3 is embedded in the second cover groove 12, and the first side formwork 2 and the second side formwork 3 are connected with the cover formwork 1 through bolts (not shown in the attached drawings).

Referring to fig. 2 and 3, a first positioning block 21 and a second positioning block 31 are respectively protruded from the first side formwork 2 and the second side formwork 3, and a first positioning groove 15 matched with the first positioning block 21 and a second positioning groove 16 matched with the second positioning block 31 are respectively formed in the cover formwork 1; the first positioning block 21 is matched with the first positioning groove 15, and the second positioning block 31 is matched with the second positioning groove 16, so that the connection precision and the connection stability of the side formwork assembly and the cover formwork 1 can be improved.

Referring to fig. 2, the cover template 1 is provided with four limiting plates 13 respectively located at the top corners, the bottom template 5 is provided with a limiting groove 54 matched with the limiting plates 13, the limiting plates 13 are matched with the limiting grooves 54, and the matching accuracy and stability of the cover template 1 and the bottom template 5 can be improved.

Referring to fig. 2 to 4, a cover mold 14 extending into the middle of the side mold plate assembly is arranged on the cover mold plate 1, a first side mold cavity 22 and a second side mold cavity 32 are respectively formed on the first side mold plate 2 and the second side mold plate 3, a bottom mold 4 opposite to the cover mold 14 and capable of extending into the middle of the side mold plate assembly is arranged on the bottom mold plate 5, and a cavity formed among the cover mold 14, the two first side mold cavities 22, the two second side mold cavities 32 and the bottom mold 4 is a mold cavity 6; the cover template 1 is provided with a material injection hole 17 communicated with the mold cavity 6, the bottom mold 4 is provided with a first thimble hole and a second thimble hole respectively, a first thimble 42 and a second thimble 43 are embedded in the first thimble hole and the second thimble hole respectively, and then plastic is injected into the mold cavity 6 through the material injection hole 17, so that the mobile phone back shell with the rear cover and the middle frame integrated can be formed.

Referring to fig. 2 and 4, the bottom die plate 5 is provided with die holes 51 matched with the bottom die 4, so that the bottom die 4 can move relative to the bottom die plate 5 and be matched with a compression die for use, thereby increasing the product density, reducing the internal stress, improving the surface quality of the product and reducing the rainbow patterns; two ring grooves 41 are formed in the side wall of the bottom die 4, rolling rods 44 in contact with the inner wall of the die hole 51 are embedded in the ring grooves 41, metal scraps generated by friction between the bottom die 4 and the inner wall of the die hole 51 can be rolled into the ring grooves 41 through the rolling rods 44, and the metal scraps are prevented from entering the die cavity 6 to influence the product quality.

The working principle is as follows:

set up side form board subassembly between lid template 1 and die block board 5, side form board subassembly can form the center, then the utility model discloses a template subassembly can mould plastics integrated into one piece with back lid and center, has saved one set of mould to can reduction in production cost.

Claims (7)

1. A mobile phone rear cover middle frame integrated forming die plate assembly capable of reducing rainbow patterns is characterized by comprising a cover die plate (1), a bottom die plate (5) and a side die plate assembly which is borne between the cover die plate (1) and the bottom die plate (5) and connected with the cover die plate (1), wherein a die cavity (6) is formed among the cover die plate (1), the bottom die plate (5) and the side die plate assembly;

the side form board subassembly includes that two are relative first side form board (2) that set up and two are relative second side form board (3) that set up, cover on template (1) and die block board (5) seted up respectively with first side form board (2) complex first cover groove (11) and first kerve (52), and with second side form board (3) complex second cover groove (12) and second kerve (53).

2. The integrally formed mold plate assembly for the middle frame of the rear cover of a mobile phone capable of reducing rainbow patterns according to claim 1, wherein: be provided with on lid template (1) and stretch into lid mould (14) in the middle of the side form subassembly, first side die cavity (22) and second side die cavity (32) have been seted up on first side template (2) and second side form board (3) respectively, be provided with on die block (5) with lid mould (14) are relative and can stretch into die block (4) in the middle of the side form subassembly, the cavity that forms between lid mould (14), two first side die cavities (22), two second side die cavities (32) and die block (4) is promptly die cavity (6).

3. The integrally formed mold plate assembly for the middle frame of the rear cover of a mobile phone capable of reducing rainbow patterns according to claim 2, wherein: the cover die plate is characterized in that a material injection hole (17) communicated with the die cavity (6) is formed in the cover die plate (1), a first thimble hole and a second thimble hole are formed in the bottom die (4) respectively, and a first thimble (42) and a second thimble (43) are embedded in the first thimble hole and the second thimble hole respectively.

4. A mobile phone rear cover middle frame integrally-formed template assembly capable of reducing rainbow patterns according to any one of claims 1-3, wherein: the first side template (2) and the second side template (3) are respectively provided with a first positioning block (21) and a second positioning block (31) in a protruding mode, and the cover template (1) is respectively provided with a first positioning groove (15) matched with the first positioning block (21) and a second positioning groove (16) matched with the second positioning block (31).

5. A mobile phone rear cover middle frame integrally-formed template assembly capable of reducing rainbow patterns according to any one of claims 1-3, wherein: the cover die plate (1) is provided with four limiting plates (13) which are respectively positioned at top corners, and the bottom die plate (5) is provided with limiting grooves (54) matched with the limiting plates (13).

6. The integrally formed mold plate assembly for the middle frame of the rear cover of a mobile phone capable of reducing rainbow patterns according to claim 2 or 3, wherein: and the bottom template (5) is provided with a die hole (51) matched with the bottom die (4).

7. The integrally formed mold plate assembly for the middle frame of the rear cover of a mobile phone capable of reducing rainbow patterns according to claim 6, wherein: annular groove (41) have been seted up to die block (4) lateral wall, embedded roller (44) that are equipped with the contact of nib (51) inner wall in annular groove (41).

Images