CN207696946U - The improved structure of light-conducting board mold glue-feeder - Google Patents
The improved structure of light-conducting board mold glue-feeder Download PDFInfo
- Publication number
- CN207696946U CN207696946U CN201721683830.4U CN201721683830U CN207696946U CN 207696946 U CN207696946 U CN 207696946U CN 201721683830 U CN201721683830 U CN 201721683830U CN 207696946 U CN207696946 U CN 207696946U
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- China
- Prior art keywords
- glue
- feeder
- cavity
- guide plate
- preceding mould
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- Expired - Fee Related
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- 239000007787 solid Substances 0.000 claims 1
- 239000003292 glue Substances 0.000 abstract description 15
- 239000012141 concentrate Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 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
- 238000010068 moulding (rubber) Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model discloses a kind of improved structures of light-conducting board mold glue-feeder, including front cavity, preceding mould mold insert, rear cavity, rear mold core；The rear mold core fixing sleeve is set in rear cavity, and the top surface at rear cavity glue-feeder sinks, and forms a lower deep gouge；The described preceding mould mold insert fixation is nested in front cavity and the bottom surface of preceding mould mold insert is higher by the bottom surface of front cavity, the bottom surface of preceding mould mold insert stretch at rear cavity glue-feeder and with the lower deep gouge grafting at rear cavity glue-feeder.Utility model will be done at front and back mode glue-feeder one insert touch structure, make light guide plate by side into glue, it is changed to intermediate into glue, since there are step in the upper and lower surfaces with light guide plate, when hand is broken or cuts the mouth of a river, make stress will not concentrate with light guide plate one side, be effectively improved the damaging problem of the left and right ends of glue-feeder when light guide plate is detached with the mouth of a river, the bright spot so as to improve the backlight assembly of high screen accounting is bad.
Description
Technical field
The utility model is related to a kind of injection molds, more particularly to a kind of improved structure of light-conducting board mold glue-feeder.
Background technology
Light guide plate is the key building block of backlight assembly, and mobile phone development trend Mobile phone screen accounting requires more and more at present
Height promotes the mobile phone of same size, used in backlight assembly light-emitting zone accounting it is also increasing, as shown in Figure 1, due to
The light-emitting zone 10 of backlight assembly is determined that the border width of shading glue is narrower by the border width S of the shading glue of backlight assembly,
Screen accounting is higher, to improve 10 accounting of light-emitting zone of backlight assembly, need to the border width of shading glue be made more and more narrow, such as
Shown in Fig. 2, because the border width of shading glue 20 is more and more narrow, shading glue is caused to cover the width H of light guide plate 30 by pervious big
In 0.25MM, only 0.2~0mm by now.As shown in figure 3, because the production technology of light guide plate 30 is injection molding, the mouth of a river 40
It is to be broken by hand or cut-off knife is cut, as shown in Figure 3, Figure 4, existing glue-feeder 50 is located at 30 injection molding cavity of light guide plate of light-conducting board mold
The upper surface side of body, through being broken by hand with the mouth of a river 40 or when cut-off knife is cut after 30 injection molding of light guide plate, due to the mouth of a river 40 with
Guide-lighting panel products same plane causes 50 position of glue-feeder that light guide plate 30 is connected with the mouth of a river 40 to be also easy to produce damaged and formed dotted
Hole will produce bright spot when light is mapped to herein using the backlight assembly of the light guide plate, original shading glue border width is more than
When 0.25MM, this bright spot can be hidden and be override, do not influenced product quality, still, be generally less than in existing shading glue border width
When 0.2MM, this bright spot can not be hidden and be override, seriously affect the optical effect of product.
In view of this, the designer for light-conducting board mold glue inlet structure design on do not attain improve caused by it is many
Missing and inconvenient deeply design, and actively research improvement has a fling at and develops and design the utility model.
Utility model content
The purpose of this utility model is to provide a kind of light-conducting board molds being effectively improved light guide plate surface quality into glue
The improved structure of mouth.
To achieve the above object, the technical solution of the utility model is：
The utility model is a kind of improved structure of light-conducting board mold glue-feeder, including front cavity, preceding mould mold insert, rear mold
Benevolence, rear mold core；The front cavity is bonded to each other with rear cavity, and cavity is formed between front cavity and rear cavity；After described
Mold core fixation is nested in rear cavity, and the top surface at rear cavity glue-feeder sinks, and forms a lower deep gouge；The preceding mould edge
Part fixation is nested in front cavity and the bottom surface of preceding mould mold insert is higher by the bottom surface of front cavity, and rear cavity is stretched into the bottom surface of preceding mould mold insert
At glue-feeder and with the lower deep gouge grafting at rear cavity glue-feeder.
The depth of deep gouge is the 1/4~1/3 of light guide plate product thickness under at the rear cavity glue-feeder；The preceding mould
The distance that mold insert bottom surface is higher by front cavity bottom surface is the 1/4~1/3 of light guide plate product thickness.
After adopting the above scheme, the utility model will be done at the front and back mode glue-feeder of light-conducting board mold one insert touch structure,
Make light-conducting board mold into rubber moulding formula, by light guide plate side upper surface side into glue, be changed among light guide plate side into glue,
Since there are step in the upper and lower surfaces with light guide plate, when hand is broken or cuts the mouth of a river, stress is made not concentrate and light guide plate one
Side can be effectively improved the problem of breakages of the left and right ends of glue-feeder when light guide plate is detached with the mouth of a river forms dotted hole, to
The bright spot for improving the backlight assembly of high screen accounting is bad.
The utility model is further described in the following with reference to the drawings and specific embodiments.
Description of the drawings
Fig. 1 is backlight assembly schematic diagram；
Fig. 2 is Fig. 1 along line A-A sectional schematic diagram；
Fig. 3 is the glue-feeder schematic diagram of existing light-conducting board mold；
Fig. 4 is Fig. 3 partial enlarged views at A；
Fig. 5 is the glue-feeder schematic diagram of the utility model light-conducting board mold；
Fig. 6 is Fig. 5 partial enlarged views at A；
Fig. 7 is the utility model light-conducting board mold into glue modular construction exploded view；
Fig. 8 is Fig. 7 partial enlarged views at A；
Fig. 9 is Fig. 7 partial enlarged views at B；
Figure 10 is the utility model light-conducting board mold into glue component shaft side figure；
Figure 11 is Figure 10 along line A-A sectional schematic diagram；
Figure 12 is Figure 11 partial schematic diagrams at A.
Specific implementation mode
As shown in Fig. 7-Figure 12, the utility model is a kind of improved structure of light-conducting board mold glue-feeder, including front cavity
1, preceding mould mold insert 2, rear cavity 3, rear mold core 4.
The front cavity 1 is bonded to each other with rear cavity 3, and cavity is formed between front cavity 1 and rear cavity 3；Described
The fixation of mold core 4 afterwards is nested in rear cavity 3, and the top surface at 3 glue-feeder 31 of rear cavity sinks, and forms a lower deep gouge 32, after
The depth of deep gouge 32 is the 1/4~1/3 of light guide plate product thickness under at 3 glue-feeder 31 of mode..The preceding mould mold insert 2 is fixed
It is nested in front cavity 1 and the bottom surface of preceding mould mold insert 2 is higher by the bottom surface of front cavity 1, preceding 2 bottom surface of mould mold insert is higher by 1 bottom of front cavity
The distance H in face is the 1/4~1/3 of light guide plate product thickness.The bottom surface of preceding mould mold insert 2 stretch at 3 glue-feeder of rear cavity and with it is rear
32 grafting of lower deep gouge at 3 glue-feeder 31 of mode.
The operation principle of the utility model：
As Figure 7-9, glue-feeder position corresponding to preceding mould mold insert 2, which is added before original on the basis of mould mold insert, does a dimpling
Structure is played, a micro groove is done in 31 position of glue-feeder corresponding to rear cavity 3（Lower deep gouge 32）Structure, as shown in figs. 10-12, preceding mould
When benevolence 1 and rear cavity 3 assemble, group is patched at the bulge-structure of preceding mould mold insert 2 and the groove location of rear cavity 3 of front cavity 1
It closes, so that product glue-feeder 60 is located at the centre of 30 side of guide-lighting panel products, as shown in Figure 5,6.
The above, only the utility model preferred embodiment, therefore the utility model implementation cannot be limited with this
Range all should still belong to this reality that is, according to equivalent changes and modifications made by present utility model application the scope of the claims and description
In the range of being covered with new patent.
Claims (2)
1. a kind of improved structure of light-conducting board mold glue-feeder, it is characterised in that：Including front cavity, preceding mould mold insert, rear cavity, after
Mold core；The front cavity is bonded to each other with rear cavity, and cavity is formed between front cavity and rear cavity；The rear mold core is solid
Surely it is nested in rear cavity, the top surface at rear cavity glue-feeder sinks, and forms a lower deep gouge；The preceding mould mold insert is fixed
It is nested in front cavity and the bottom surface of preceding mould mold insert is higher by the bottom surface of front cavity, rear cavity glue-feeder is stretched into the bottom surface of preceding mould mold insert
Place and with the lower deep gouge grafting at rear cavity glue-feeder.
2. the improved structure of light-conducting board mold glue-feeder according to claim 1, it is characterised in that：The rear cavity into
The depth of lower deep gouge is the 1/4~1/3 of light guide plate product thickness at Jiao Kou；The preceding mould mold insert bottom surface is higher by front cavity bottom surface
Distance be light guide plate product thickness 1/4~1/3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721683830.4U CN207696946U (en) | 2017-12-06 | 2017-12-06 | The improved structure of light-conducting board mold glue-feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721683830.4U CN207696946U (en) | 2017-12-06 | 2017-12-06 | The improved structure of light-conducting board mold glue-feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207696946U true CN207696946U (en) | 2018-08-07 |
Family
ID=63024991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721683830.4U Expired - Fee Related CN207696946U (en) | 2017-12-06 | 2017-12-06 | The improved structure of light-conducting board mold glue-feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207696946U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109501137A (en) * | 2018-11-21 | 2019-03-22 | Oppo（重庆）智能科技有限公司 | Mold, light guide plate and its processing method, display screen and electronic equipment |
-
2017
- 2017-12-06 CN CN201721683830.4U patent/CN207696946U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109501137A (en) * | 2018-11-21 | 2019-03-22 | Oppo（重庆）智能科技有限公司 | Mold, light guide plate and its processing method, display screen and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180807 |