CN216100177U - Mold core for improving flatness of light guide plate - Google Patents
Mold core for improving flatness of light guide plate Download PDFInfo
- Publication number
- CN216100177U CN216100177U CN202122687028.5U CN202122687028U CN216100177U CN 216100177 U CN216100177 U CN 216100177U CN 202122687028 U CN202122687028 U CN 202122687028U CN 216100177 U CN216100177 U CN 216100177U
- Authority
- CN
- China
- Prior art keywords
- light guide
- guide plate
- mold core
- flatness
- burr
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007747 plating Methods 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims description 6
- 238000005253 cladding Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 description 8
- 239000012778 molding material Substances 0.000 description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- 235000009537 plain noodles Nutrition 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
Images
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a mold core of a mold for improving the flatness of a light guide plate, and relates to the technical field of light guide plates. The die core comprises a die core base, wherein a die core connecting seat is fixedly connected to the upper surface of the die core base, a die core body is fixedly connected to the upper surface of the die core connecting seat, a plating layer is plated on the upper surface of the die core body, platforms with corresponding heights are arranged on two sides of the plating layer, the width of each platform is 0.1-0.5mm, a plurality of grooves are arranged among the platforms, the grooves are V-shaped, and the grooves are identical in structure. By arranging the platform and the groove, when the light guide plate is molded by the mold, the platform can mold a concave structure on the light guide plate, the height of the burr or the burr on one side wall of the concave structure is equal to or less than the height of the burr or the light guide plate on the other side wall, namely the height of the burr and the burr is equal to or less than the height of the light guide plate, the burr and the burr cannot damage the light-emitting surface of the light guide plate, and the flatness of the light guide plate cannot be influenced.
Description
Technical Field
The utility model belongs to the technical field of light guide plates, and particularly relates to a mold core of a mold for improving the flatness of a light guide plate.
Background
The light guide plate is characterized in that light guide points are printed on the bottom surface of an optical acrylic plate by using an optical acrylic/PC plate and then using a high-tech material with extremely high refractive index and no light absorption through laser engraving, V-shaped cross grid engraving and UV screen printing technologies. The optical-grade acrylic sheet is used for absorbing the light emitted from the lamp to stay on the surface of the optical-grade acrylic sheet, when the light irradiates each light guide point, the reflected light can be diffused towards each angle, and then the reflected light is damaged and is emitted from the front surface of the light guide plate. The light guide plate can uniformly emit light through various light guide points with different densities and sizes. The reflecting sheet is used for reflecting the light exposed from the bottom surface back to the light guide plate so as to improve the use efficiency of the light; under the condition of equal area brightness, the luminous efficiency is high and the power consumption is low.
The structure and the quality of light guide plate mainly are decided on the structure and the quality of the removal mould core of light guide plate mould, and current light guide plate mould core produces wearing and tearing in the compression action, and the flash of a knife or a sword deckle edge that the light guide plate of preparation can appear highly can surpass rectangular sand grip and go out the plain noodles height, and the flash of a knife or a sword deckle edge that produces can destroy the play plain noodles of whole light guide plate, influences the roughness of light guide plate.
In order to solve the problems, the utility model provides a mold core of a mold for improving the flatness of a light guide plate.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a mold core for improving the flatness of a light guide plate, which solves the problems that the existing mold core for the light guide plate is worn in the compression action, burrs of a manufactured light guide plate can be generated, the height of the burrs is higher than that of a strip-shaped raised line and a light emitting surface, and the generated burrs can damage the light emitting surface of the whole light guide plate to influence the flatness of the light guide plate.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model relates to a mould core for improving the flatness of a light guide plate, which comprises a mould core base, wherein the upper surface of the mould core base is fixedly connected with a mould core connecting seat, the upper surface of the mould core connecting seat is fixedly connected with a mould core body, the upper surface of the mould core body is plated with a plating layer, two sides of the plating layer are respectively provided with a platform with corresponding height, the width of the platform is 0.1-0.5mm, a plurality of grooves are arranged between the platforms, the grooves are V-shaped, the structures of the grooves are the same, when the mould is used for forming the light guide plate, the platform can form a concave structure on the light guide plate, the height of one side wall of the concave structure, namely a burr or burr, is equal to or less than the height of the other side wall, namely, the height of the burr is equal to or less than the height of the light guide plate, and the burr can not damage the light emitting surface of the light guide plate, the flatness of the light guide plate cannot be affected.
Preferably, the angle of the vertex angle of the groove is controlled to be 30-75 degrees, the width of the burr is controlled by controlling the angle of the vertex angle of the groove, and the possibility that the burr damages the light guide plate is reduced.
Preferably, the maximum width of the groove is controlled to be 10um-50um, and the resistance to fluid is reduced by controlling the maximum width of the groove, so that the flow of injection molding materials is facilitated.
Preferably, the degree of depth control of recess is at 5um-20um, through the degree of depth of control recess, cooperates the apex angle of recess and the maximum width of recess, makes the injection molding material flow unblocked, and the distribution is even, changes the packing, reduces the phenomenon that the cold glue blurs to appear, improves light guide plate injection moulding quality.
Preferably, the peak of recess is less than the height of platform, and its difference in height control is at 15um-25um, through making the recess peak be less than the platform height, makes the whole recess of injection molding material filled, is in the inside of platform, can not overflow and scatter, simultaneously, controls the height of draped over one's shoulders the burr.
Preferably, two fixing grooves are formed in the upper surface of the mold core body, the fixing grooves are located on two sides of the upper surface of the mold core body respectively, the plating layer fills the whole fixing grooves, and the plating layer fills the fixing grooves by forming the fixing grooves, so that the plating layer is fixed between the two fixing grooves, and the plating layer is effectively prevented from falling off.
Preferably, the groove is machined by CNC machining equipment.
The utility model has the following beneficial effects:
by arranging the platform and the groove, when the light guide plate is molded by the mold, the platform can mold a concave structure on the light guide plate, the height of the burr or the burr on one side wall of the concave structure is equal to or less than the height of the burr or the light guide plate on the other side wall, namely the height of the burr and the burr is equal to or less than the height of the light guide plate, the burr and the burr cannot damage the light-emitting surface of the light guide plate, and the flatness of the light guide plate cannot be influenced.
Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is a top view of the present invention;
fig. 5 is a schematic cross-sectional view taken along line a-a in fig. 4.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a mold core base; 2. a mold core connecting seat; 3. a mold core body; 4. plating; 5. a platform; 6. a groove; 7. and fixing the grooves.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "middle", "outer", "inner", and the like, indicate orientations or positional relationships, are used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-5, the utility model relates to a mold core for improving the flatness of a light guide plate, which comprises a mold core base 1, wherein a mold core connecting seat 2 is fixedly connected to the upper surface of the mold core base 1, a mold core body 3 is fixedly connected to the upper surface of the mold core connecting seat 2, a plating layer 4 is plated on the upper surface of the mold core body 3, platforms 5 with corresponding heights are arranged on two sides of the plating layer 4, the width of each platform 5 is 0.1-0.5mm, a plurality of grooves 6 are arranged among the platforms 5, the grooves 6 are in a V shape, and the grooves 6 have the same structure.
Through setting up platform 5 and recess 6, when mould shaping light guide plate, platform 5 can be on the light guide plate shaping sunk structure, and a lateral wall of sunk structure shavings or unedged highly equals or is less than the height that the opposite side lateral wall highly equals or is less than the light guide plate promptly, shavings unedged highly equals or is less than the height of light guide plate promptly, shavings unedged just can't destroy the play plain noodles of light guide plate, can't influence the roughness of light guide plate.
Further, the angle of the apex angle of the groove 6 is controlled to be 30-75 °.
The width of burrs of the flash is controlled by controlling the angle of the top angle of the groove 6, so that the possibility that the burrs of the flash damage the light guide plate is reduced.
Further, the maximum width of the groove 6 is controlled to be 10um to 50 um.
By controlling the maximum width of the groove 6, the resistance to the fluid is reduced, and the flow of the injection molding material is facilitated.
Further, the depth of the groove 6 is controlled to be 5um-20 um.
Through the degree of depth of control recess 6, the apex angle of cooperation recess 6 and the maximum width of recess 6 make the injection molding material flow unblocked, distribute evenly, change the packing, reduce the phenomenon that the cold glue blurs, improve light guide plate injection moulding quality.
Further, the highest point of the groove 6 is lower than the height of the platform 5, and the height difference is controlled to be 15um-25 um.
Through making 6 peaks of recess be less than 5 height of platform, make whole recess 6 of injection molding material filled, be in the inside of platform 5, can not overflow and scatter, simultaneously, control flash of a knife or a sword deckle edge height.
Further, two fixed slots 7 have been seted up to mold core body 3 upper surface, and a plurality of fixed slots 7 are located mold core body 3 upper surface both sides respectively, and whole fixed slot 7 is filled to cladding material 4.
By arranging the fixing grooves 7, the plating layer 4 fills the fixing grooves 7, so that the plating layer 4 is fixed between the two fixing grooves 7, and the plating layer 4 is effectively prevented from falling off.
Further, the groove 6 is machined by CNC machining equipment.
As shown in fig. 1 to 5, this embodiment is a method for using a mold core for improving the flatness of a light guide plate, comprising: firstly, a mold core base 1, a mold core connecting seat 2 and a mold core body 3 are fixedly connected, then a fixing groove 7 is arranged on the mold core body 3, plating layer 4 is plated on the upper surface of the mold core body 3, the plating layer 4 is a nickel plating layer, after the plating layer 4 is finished, precise CNC equipment is used, the platform 5 and the groove 6 are arranged, after the groove 6 and the platform 5 are arranged, the plating layer 4 and the groove 6 thereon are cleaned, then the light guide plate is processed, by arranging the platform 5 and the groove 6, when the light guide plate is molded by the mold, the platform can mold a concave structure on the light guide plate, the height of one side wall of the concave structure, namely the burr or the burr, is equal to or less than the height of the other side wall, namely the height of the light guide plate, the height of the burr is equal to or less than the height of the light guide plate, and the burr can not damage the light emitting surface of the light guide plate and affect the flatness of the light guide plate.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The utility model provides an improve light guide plate roughness mould mold core, includes mold core base (1), its characterized in that: fixed surface is connected with mold core connecting seat (2) on mold core base (1), and fixed surface is connected with mold core body (3) on mold core connecting seat (2), cladding material (4) have been plated to mold core body (3) upper surface, cladding material (4) both sides all are equipped with highly corresponding platform (5), the width of platform (5) is 0.1-0.5mm, and is a plurality of be provided with between platform (5) a plurality of recess (6), a plurality of recess (6) are "V" shape, and are a plurality of the structure of recess (6) is the same.
2. The mold core for improving the flatness of a light guide plate according to claim 1, wherein the angle of the top angle of the groove (6) is controlled to be 30 ° to 75 °.
3. The mold core for improving the flatness of the light guide plate according to claim 1, wherein the maximum width of the groove (6) is controlled to be 10um-50 um.
4. The mold core for improving the flatness of the light guide plate according to claim 1, wherein the depth of the groove (6) is controlled to be 5-20 um.
5. The mold core for improving the flatness of the light guide plate of the mold according to claim 1, wherein the highest point of the groove (6) is lower than the height of the platform (5), and the height difference is controlled to be 15um-25 um.
6. The mold core of the mold for improving the flatness of the light guide plate according to claim 1, wherein two fixing grooves (7) are formed in the upper surface of the mold core body (3), the fixing grooves (7) are respectively located on two sides of the upper surface of the mold core body (3), and the plating layer (4) fills the whole fixing grooves (7).
7. The light guide plate flatness improving mold core according to claim 1, wherein the groove (6) is machined by CNC machining equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122687028.5U CN216100177U (en) | 2021-11-04 | 2021-11-04 | Mold core for improving flatness of light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122687028.5U CN216100177U (en) | 2021-11-04 | 2021-11-04 | Mold core for improving flatness of light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216100177U true CN216100177U (en) | 2022-03-22 |
Family
ID=80713121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122687028.5U Expired - Fee Related CN216100177U (en) | 2021-11-04 | 2021-11-04 | Mold core for improving flatness of light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216100177U (en) |
-
2021
- 2021-11-04 CN CN202122687028.5U patent/CN216100177U/en not_active Expired - Fee Related
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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: 20220322 |
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| CF01 | Termination of patent right due to non-payment of annual fee |