CN107601829A - A kind of 3D glass-forming dies structure - Google Patents
A kind of 3D glass-forming dies structure Download PDFInfo
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- CN107601829A CN107601829A CN201711053885.1A CN201711053885A CN107601829A CN 107601829 A CN107601829 A CN 107601829A CN 201711053885 A CN201711053885 A CN 201711053885A CN 107601829 A CN107601829 A CN 107601829A
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- glass
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- pin
- stainless steel
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Abstract
The invention discloses a kind of 3D glass-forming dies structure, belong to mould applications, including punch-pin setting up and down and cavity plate, the 3D glass clamps are in the centre of the punch-pin and cavity plate, the punch-pin is provided with two grooves parallel with the 3D glass side and positioned at the 3D glass both sides, the cavity plate is provided with the Ka Jiao corresponding with two grooves, the limited step that the inside grooves are provided with peak vertical direction distance is 0.03~0.05mm on the 3D glass left/right side.The beneficial effects of the invention are as follows：Limited step is set in inside grooves, so making glass, limited step can play position-limiting action to its two side, prevent glass from deflecting in shaping；But because glass heating has expansion, step plane is 0.03~0.05mm with peak vertical direction distance on the 3D glass left/right side, can prevent glass edge from occurring imprinting or causing fragment.
Description
Technical field
The present invention relates to mould applications, more particularly to a kind of 3D glass-forming dies structure.
Background technology
3D bend glasses (front and rear covers) are more used with the rise and communication 5G epoch, smart mobile phone of 3D Curved screens,
The 5G epoch will abandon existing metal back cover completely, and shield glass material will not be produced to signal by using.
In 3D bend glass forming processes, the profile of glass shaping is critically important management and control essence for 3D curved surfaces
Degree, once glass is eccentric in forming process, then glass contours are just inclined toward one side, and precision can not just ensure, all for 3D
The eccentricity control of bend glass is particularly important；Research at present for 3D bend glass eccentricity controls is also considerably less, such as notification number
A kind of Microcrystalized glass substrate make-up appts. for magnetic disc, including big pressure are disclosed for CN2601253Y utility model patent
Power forcing press, upper mould and the bed die corresponding with mould on this with drift connection, is uniformly distributed on upper mould side provided with three
, the card base made of elastic material, the side outer edge surface tight fit of the card base and bed die.This method can control offset
Within 0.1~0.3mm, but it is the effect of card base made of the flexible material used, does not consider the hot swollen of glass
Swollen situation, it is not used in the sophisticated product very high to offset requirement.
For another example notification number be CN204434470U disclose it is a kind of be used to preparing the mould of bend glass plate, including in
Heart flat board and at least one peripheral curved surface lath；The material of the mould is graphite, and the mould includes die
On the lower mould containing first surface die cavity, for being matched to the spacing center of glass plate, containing briquetting through hole and with the center
Upper mould, on die containing can be with the second curved surface die cavity of the first surface die cavity male-female engagement and the briquetting can be arranged on
Forming press, closing piece in through hole, and the closing piece is used to fix the upper mould, center, glass plate and lower mould.Although it is being produced
Product both sides are provided with center, but it is only limitted to the right position management and control to flat sheet, does not consider thermal expansion problem, still
It is not used in the sophisticated product very high to offset requirement.
The content of the invention
To overcome the product offset that product 3D glass-forming dies are produced in the prior art big, precision controlling less than
Position, the problems such as product defect rate is high, the invention provides a kind of 3D glass-forming dies structure, including punch-pin setting up and down and recessed
Mould, the 3D glass clamps are parallel with the 3D glass side provided with two in the centre of the punch-pin and cavity plate, the punch-pin
And it is provided with the Ka Jiao corresponding with two grooves, the groove positioned at the groove of the 3D glass both sides, the cavity plate
The limited step that inside is provided with peak vertical direction distance is 0.03~0.05mm on the 3D glass left/right side.
Limited step is set in inside grooves, so making glass, limited step can play limit to its two side in shaping
Position effect, prevents glass from deflecting；But because glass heating has expansion, step plane and the 3D glass left/right side
Peak vertical direction distance is 0.03~0.05mm on face, can prevent glass edge from occurring imprinting or causing fragment.
Further, parallel with the limited step put down is provided with the card angle with the limited step corresponding position
Platform.
Further, on the platform and the 3D glass left/right side perigee distance vertical direction distance for 0~
0.1mm。
Further, the platform smoothly connects with the supporting surface being used on the cavity plate below the shaping of supporting glass plate material
Connect, its face in smoothing junction can be arc-shaped curved surface, the platform can design it is as far as possible lower, specifically with the 3D glass it is left/
Perigee distance vertical direction distance is 0~0.1mm on right flank, on the premise of can so extending ensureing formed product,
Make the specific broader expansion space in the side of glass two, avoid causing the side of glass two extruding to injure.
Further, the side of punch-pin two is provided with two lock seamings parallel with the groove, and one is located in the lock seaming
It is used for the locked groove for fixing the punch-pin and the cavity plate more than individual.
Further, be provided with the locking angle on the cavity plate with the locked groove corresponding position, the outline of the locking angle with it is described
The Internal periphery of locked groove overlaps.
Locked groove and the locking angle are designed, the punch-pin and the cavity plate can be fixed, prevent punch-pin and cavity plate being molded
During there is displacement, influence the quality of 3D glass products.
Further, the material of main part of the cavity plate and the punch-pin be stainless steel fibre skeleton and powder of stainless steel filling and
Into.
Further, the stainless steel fibre skeleton is three-dimensional woven fabric, and it is by stainless steel filament fiber according to punch-pin or recessed
The shape of mould, formed through weaving braiding.
Using stainless steel fibre skeleton, the anti-deformation nature of the integrally-built stability of three-dimensional woven fabric, Ke Yiti are utilized
High mould is particularly the stability and mechanical property with glass product contact plane under heated stress, prevents die surface
Deformation, the smoothness of glass surface is improved, reduce the angularity of glass body.
Further, a diameter of 0.01~0.10 μm of the stainless steel filament fiber, being averaged for the powder of stainless steel are straight
Footpath is 0.005~0.015 μm, and the surface roughness of the cavity plate/punch-pin is 0.002~0.003 μm.
Further, the weight ratio of the stainless steel filament fiber and the powder of stainless steel is 1：(0.5~2).
Further, the powder of stainless steel is cast on the stainless steel fibre skeleton by the way of being sprayed after melting,
And by moulding process, obtain described punch-pin/cavity plate.
Further, the punch-pin, cavity plate are with being provided with one layer of heating plate, institute at 4~8cm of the adjacent lateral extent of 3D glass
It is parallel with plane where the 3D glass to state heating plate.
Further, the punch-pin, cavity plate side adjacent with the 3D glass are coated with one layer of heat conducting film, the heat conducting film
Material metal thermal conductive material, specific formula are 40~70wt% iron oxide, 10~20wt% copper powders, 0.5~4wt% silver powder, 5
~10wt% zinc, surplus are magnesium and impurity, and wherein impurity content is no more than 0.5%.
Further, a diameter of 1~10 micron of the heat conduction intramembranous particles.
Further, the roughness of the heat conducting film is 0.01~0.02 μm.
Further, the heating plate laid inside has more than one layer of electromagnetic induction coil, and electromagnetic induction coil is to punch-pin
Heated with the heat conducting film on cavity plate, the temperature of heat conducting film is higher than the softening melting temperature of glass, so as to prevent molten
Glass is adhered on heat conducting film when filling die cavity, influences the filling of die cavity.
Further, described three layers of electromagnetic induction coil of heating plate laid inside, between adjacent two layers electromagnetic induction coil
Distance is 1~2cm, and the electric current of the electromagnetic induction coil described from inside to outside is 3A, 5A and 10A successively.
Heat conducting film is heated using three layers of electromagnetic induction coil, the uniformity to heat conducting film heating can be improved, and
And due to the heating feature of electromagnetic induction coil, the accurate heating to heat conducting film is successfully realized, improves the heating effect of mould
Rate.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) limited step is set in inside grooves, so making glass, limited step can play to its two side in shaping
Position-limiting action, prevent glass from deflecting；But because glass heating has expansion, step plane and the 3D glass left/right
Peak vertical direction distance is 0.03~0.05mm on side, can prevent glass edge from occurring imprinting or causing fragment；
(2) platform and the supporting surface being used on the cavity plate below the shaping of supporting glass plate material are in smoothing junction, its
Face in smoothing junction can be arc-shaped curved surface, the platform can design it is as far as possible lower, specifically with the 3D glass left/right side
Upper perigee distance vertical direction distance is 0~0.1mm, so can make glass on the premise of formed product extension is ensured
The specific broader expansion space in two sides, avoids causing the side of glass two extruding to injure；
(3) locked groove and the locking angle are designed, the punch-pin and the cavity plate can be fixed, prevent punch-pin and cavity plate into
Occur displacement during type, influence the quality of 3D glass products；
(4) stainless steel fibre skeleton is used, can be with using the integrally-built stability of three-dimensional woven fabric and anti-deformation nature
Stability and mechanical property of the mould particularly under heated stress with glass product contact plane are improved, prevents mould table
Facial disfigurement, the smoothness of glass surface is improved, reduce the angularity of glass body.
Brief description of the drawings
Fig. 1 is preferably punch-pin stereogram of the invention；
Fig. 2 is preferably cavity plate stereogram of the invention；
Fig. 3 is preferably 3D bend glasses stereogram of the invention；
Fig. 4 is preferably die profile of the invention；
Fig. 5 is the enlarged drawing that A is marked in Fig. 4.
Each mark meaning is as follows in figure：
1st, punch-pin；11st, groove；12nd, lockstitch a border；13rd, locked groove；14th, limited step；2nd, cavity plate；21st, Ka Jiao；22nd, the locking angle；23、
Platform；3rd, 3D glass；31st, main part；32nd, curvature portion；4th, heating plate；41st, electromagnetic induction coil.
Embodiment
Below in conjunction with drawings and examples, the present invention will be described in further detail.It is it should be appreciated that described herein
Specific embodiment only to explain the present invention, is not intended to limit the present invention.
As Figure 1-4,3D glass-forming dies structure includes punch-pin 1 setting up and down and cavity plate 2, and the 3D glass 3 presss from both sides
In the centre of the punch-pin 1 and cavity plate 2, the punch-pin 1 be provided with two it is parallel with the side of 3D glass 3 and be located at the 3D
The groove 11 of the both sides of glass 3, the cavity plate 2 are provided with the card angle 21 corresponding with two grooves 11, and the 3D glass 3 wraps
Include main part 31 and be located at the curvature portion 32 of the main part both sides.
Described 1 liang of side of punch-pin is provided with two lock seamings 12 parallel with the groove 11, and one is located in the lock seaming 12
It is used for the locked groove 13 for fixing the punch-pin 1 and the cavity plate 2 more than individual.
The locking angle 22, outline and the locked groove of the locking angle 22 are provided with cavity plate 2 with the corresponding position of locked groove 13
13 Internal periphery overlaps.
It is readily appreciated that, designs locked groove and the locking angle, the punch-pin and the cavity plate can be fixed, prevents punch-pin and recessed
There is displacement in forming process in mould, influences the quality of 3D glass products.
As a preferred embodiment, the punch-pin 1, cavity plate 2 and 4~8cm of the adjacent lateral extent of 3D glass 3
Place is provided with one layer of heating plate 4, and the heating plate 4 is parallel with the place plane of 3D glass 3.
The punch-pin 1, cavity plate 2 are coated with one layer of heat conducting film, the material of the heat conducting film with the 3 adjacent side of 3D glass
Metal thermal conductive material, specific formula be 40~70wt% iron oxide, 10~20wt% copper powders, 0.5~4wt% silver powder, 5~
10wt% zinc, surplus are magnesium and impurity, and wherein impurity content is no more than 0.5%.The heat conducting film surface roughness is 0.01
~0.02 μm.
The metal thermal conductive material obtained using being formulated above, its surface is smooth, and thermal conductivity is high, and is stripped in 3D glass
When, 3D glass surfaces will not be adhered to die surface, influence the demoulding and properties of product.
The laid inside of heating plate 4 has more than one layer of an electromagnetic induction coil 41, electromagnetic induction coil 41 to punch-pin and
Heat conducting film on cavity plate is heated, and the temperature of heat conducting film is higher than the softening melting temperature of glass, so as to prevent molten glass
Glass is adhered on heat conducting film when filling die cavity, influences the filling of die cavity.
As a preferred embodiment, the material of main part of the cavity plate 2 and the punch-pin 1 is stainless steel fibre skeleton
Formed with powder of stainless steel filling.
The stainless steel fibre skeleton is three-dimensional woven fabric, its shape by stainless steel filament fiber according to punch-pin or cavity plate
Shape, formed through weaving braiding.
, it is surprising that using stainless steel fibre skeleton, the anti-shape of the integrally-built stability of three-dimensional woven fabric is utilized
Become performance, stability and mechanical property of the mould particularly under heated stress with glass product contact plane can be improved
Can, die surface area distortions are prevented, improve the smoothness of glass surface, reduce the angularity of glass body.
A diameter of 0.01~0.10 μm of the stainless steel filament fiber, the average diameter of the powder of stainless steel are
0.005~0.015 μm, the surface roughness of the cavity plate/punch-pin is 0.02~0.03 μm.
The weight ratio of stainless steel filament fiber and the powder of stainless steel is 1：(0.5~2).
Powder of stainless steel is cast on the stainless steel fibre skeleton by the way of being sprayed after melting, and by being molded work
Skill, obtain described punch-pin/cavity plate.
As a preferred embodiment, one in a small amount of Cr, Ni, Mo, Sr and Sb is mixed into powder of stainless steel
Kind or multiple element powder, the diameter of wherein each element powder are distributed between 0.002~0.02 μm.
As a preferred embodiment, after Cr, Ni, Mo, Sr and Sb and powder of stainless steel mixing, percentage by weight is
(Fe+C)：Cr：Ni：Mo：Sr：Sb=(60~70)：(15~20)：(5~10)：(2~5)：(5~10)：(5~10).
Other alloy powders are added in powder of stainless steel, after cast, obtained mould is wear-resistant, hot dimensionally stable
Property, thermal fatigue property have larger lifting.
As shown in figure 5, the inside of groove 11 is provided with the peak M vertical directions of curvature portion 32 with the 3D glass 3
Distance is 0.03~0.05mm limited step 14.
Surprisingly, setting limited step in inside grooves, so make glass in shaping, limited step energy
Position-limiting action is played to its two side, prevents glass from deflecting；But because glass heating has expansion, step plane and institute
It is 0.03~0.05mm to state on 3D glass left/right side peak vertical direction distance, can prevent glass edge occur imprinting or
Person causes fragment.
In the card angle 21 platform parallel with the limited step 14 is provided with the corresponding position of limited step 14
23。
Platform 23 and minimum point N on the curvature portion 32 on the 3D glass 3 is 0~0.1mm apart from vertical direction distance.
The platform 23 and the supporting surface being used on the cavity plate 2 below the shaping of supporting glass plate material are in smoothing junction, its
Face in smoothing junction can be arc-shaped curved surface, the platform 23 can design it is as far as possible lower, specifically with the 3D glass left/right side
Perigee distance vertical direction distance is 0~0.1mm on face, so can make glass on the premise of formed product extension is ensured
The specific broader expansion space in the side of glass two, avoids causing the side of glass two extruding to injure, will can be produced by the above method
The eccentric fraction defective of product is controlled within 2%.
The preferred embodiments of the present invention have shown and described in described above, as previously described, it should be understood that the present invention is not office
Be limited to form disclosed herein, be not to be taken as the exclusion to other embodiment, and available for various other combinations, modification and
Environment, and can be changed in the scope of the invention is set forth herein by the technology or knowledge of above-mentioned teaching or association area
It is dynamic., then all should be appended by the present invention and the change and change that those skilled in the art are carried out do not depart from the spirit and scope of the present invention
In scope of the claims.
Claims (10)
1. a kind of 3D glass-forming dies structure, including punch-pin setting up and down and cavity plate, the 3D glass clamps in the punch-pin and
The centre of cavity plate, it is characterised in that the punch-pin be provided with two it is parallel with the 3D glass side and be located at the 3D glass
The groove of both sides, the cavity plate are provided with the Ka Jiao corresponding with two grooves, and the inside grooves are provided with and the 3D
The limited step that peak vertical direction distance is 0.03~0.05mm on glass left/right side.
A kind of 2. 3D glass-forming dies structure according to claim 1, it is characterised in that in the card angle with the limit
Position step corresponding position is provided with the platform parallel with the limited step.
3. a kind of 3D glass-forming dies structure according to claim 2, it is characterised in that the platform and the 3D glass
Perigee distance vertical direction distance is 0~0.1mm on glass left/right side.
4. a kind of 3D glass-forming dies structure according to claim 3, it is characterised in that set on the side of punch-pin two
There are two lock seamings parallel with the groove, more than one is located in the lock seaming and is used to fix the punch-pin and the cavity plate
Locked groove.
A kind of 5. 3D glass-forming dies structure according to claim 4, it is characterised in that on the cavity plate with the lock
Groove corresponding position is provided with the locking angle, and the outline of the locking angle overlaps with the Internal periphery of the locked groove.
6. a kind of 3D glass-forming dies structure according to claim 5, it is characterised in that the cavity plate and the punch-pin
Material of main part for stainless steel fibre skeleton and powder of stainless steel filling form.
A kind of 7. 3D glass-forming dies structure according to claim 6, it is characterised in that the stainless steel fibre skeleton
For three-dimensional woven fabric, its shape by stainless steel filament fiber according to punch-pin or cavity plate, formed through weaving braiding.
A kind of 8. 3D glass-forming dies structure according to claim 7, it is characterised in that the stainless steel filament fiber
A diameter of 0.1~1.0 μm, the average diameter of the powder of stainless steel is 0.05~0.15 μm.
A kind of 9. 3D glass-forming dies structure according to claim 8, it is characterised in that the stainless steel filament fiber
Weight ratio with the powder of stainless steel is 1：(0.5~2).
10. a kind of 3D glass-forming dies structure according to claim 9, it is characterised in that the powder of stainless steel is adopted
It is cast in the mode sprayed after melting on the stainless steel fibre skeleton, and by moulding process, obtains described punch-pin/recessed
Mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711053885.1A CN107601829B (en) | 2017-10-31 | 2017-10-31 | 3D glass forming die structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711053885.1A CN107601829B (en) | 2017-10-31 | 2017-10-31 | 3D glass forming die structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107601829A true CN107601829A (en) | 2018-01-19 |
| CN107601829B CN107601829B (en) | 2020-10-30 |
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ID=61084609
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711053885.1A Expired - Fee Related CN107601829B (en) | 2017-10-31 | 2017-10-31 | 3D glass forming die structure |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108726853A (en) * | 2018-06-30 | 2018-11-02 | 深圳市东方碳素实业有限公司 | A kind of mold for hot bending automobile bend glass |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102822402A (en) * | 2010-03-26 | 2012-12-12 | 贝卡尔特公司 | Knitted fabric of steel fibers |
| CN106077665A (en) * | 2016-06-29 | 2016-11-09 | 华南理工大学 | A kind of method of Metal screen cloth wound sintering pressure processing and manufacturing structural metallic materials |
| CN206279078U (en) * | 2016-11-18 | 2017-06-27 | 蓝思科技（长沙）有限公司 | A kind of hot bending die for improving bend glass lens surface quality |
-
2017
- 2017-10-31 CN CN201711053885.1A patent/CN107601829B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102822402A (en) * | 2010-03-26 | 2012-12-12 | 贝卡尔特公司 | Knitted fabric of steel fibers |
| CN106077665A (en) * | 2016-06-29 | 2016-11-09 | 华南理工大学 | A kind of method of Metal screen cloth wound sintering pressure processing and manufacturing structural metallic materials |
| CN206279078U (en) * | 2016-11-18 | 2017-06-27 | 蓝思科技（长沙）有限公司 | A kind of hot bending die for improving bend glass lens surface quality |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108726853A (en) * | 2018-06-30 | 2018-11-02 | 深圳市东方碳素实业有限公司 | A kind of mold for hot bending automobile bend glass |
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| Publication number | Publication date |
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| CN107601829B (en) | 2020-10-30 |
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