CN108002694B - Glass hot-bending die - Google Patents
Glass hot-bending die Download PDFInfo
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- CN108002694B CN108002694B CN201610932038.1A CN201610932038A CN108002694B CN 108002694 B CN108002694 B CN 108002694B CN 201610932038 A CN201610932038 A CN 201610932038A CN 108002694 B CN108002694 B CN 108002694B
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- China
- Prior art keywords
- glass
- glass plate
- upper mold
- section
- surface camber
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention discloses a kind of glass hot-bending dies, comprising: upper mold；Lower die, the lower die include: lower surface camber section and lower plane section, are provided with ejection slot in the lower surface camber section；Expanded spheres, the expanded spheres are arranged in the ejection slot, and as temperature increases, the expanded spheres volume expansion simultaneously holds up glass plate embryo material.The point of bend glass after molding can be greatly reduced in glass hot-bending die according to the present invention, it is made to meet the requirement of display panel.
Description
Technical field
The present invention relates to bend glass field shaping technique, in particular to a kind of glass hot-bending die.
Background technique
With the raising that people require the beauty and rugged performance of mobile phone, application of the bend glass on mobile phone gradually at
It is ripe, it uses gravity-bending method substantially at present, i.e., glass plate is heated to glass transition temperature, then glass plate is in molding die
It is bent under the action of self gravity, but the hysteresis quality of glass heating often makes glass forming temperature higher and higher, due to
The viscosity with temperature of glass plate increases and becomes smaller, and mobility also accordingly enhances, and surface generates point and increases, profile tolerance deviation
It is larger, it is allowed to not be able to satisfy the requirement of display panel.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, the present invention mentions
The point of bend glass after molding can be greatly reduced in a kind of glass hot-bending die out, the glass hot-bending die, make its satisfaction
The requirement of display panel.
Glass hot-bending die according to the present invention, comprising: upper mold；Lower die, the lower die include: lower surface camber section and lower plane
Section, ejection slot is provided in the lower surface camber section；Expanded spheres, the expanded spheres are arranged in the ejection slot, with temperature liter
Height, the expanded spheres volume expansion simultaneously hold up glass plate embryo material.
The point of bend glass after molding can be greatly reduced in glass hot-bending die according to the present invention, make its satisfaction
The requirement of display panel.
In addition, glass hot-bending die according to the present invention can also have following additional distinguishing feature:
According to one embodiment of present invention, the ejection slot is multiple, and multiple ejection slots are evenly distributed on institute
It states in lower surface camber section.
According to one embodiment of present invention, the step for being used to support the glass plate embryo material is provided in the lower die
Portion.
According to one embodiment of present invention, when the upper mold and the lower die do not mold, the upper mold and the glass
Glass plate embryo material is contacted to heat the glass plate embryo material.
According to one embodiment of present invention, the glass hot-bending die further include: die sleeve, the upper mold and the die sleeve
After molding in place, prepsetting gap is formed between the upper mold and the lower die, the glass plate embryo material setting is between described preset
In gap.
According to one embodiment of present invention, the upper mold is made of graphite material.
According to one embodiment of present invention, the upper mold includes: top-surface camber section and upper planar section, the top-surface camber section with
The lower surface camber section face, the upper planar section and the lower plane section face.
According to one embodiment of present invention, the ripple glaze of strip is provided in the top-surface camber section.
According to one embodiment of present invention, the ripple glaze is multiple, and multiple ripple glazes are along the top-surface camber
The arcuate directions interval of section is uniformly distributed.
According to one embodiment of present invention, the expanded spheres are glass marble.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the schematic diagram of the warm-up phase of glass hot-bending die according to an embodiment of the present invention；
Fig. 2 is the schematic diagram of the matched moulds stage of glass hot-bending die according to an embodiment of the present invention；
Fig. 3 is the schematic diagram of the formative stage of glass hot-bending die according to an embodiment of the present invention；
Fig. 4 is the schematic diagram of lower die according to an embodiment of the present invention；
Fig. 5 is the schematic diagram of upper mold according to an embodiment of the present invention.
Appended drawing reference:
Glass hot-bending die 100,
Upper mold 110, top-surface camber section 111, ripple glaze 111a, upper planar section 112,
Lower die 120, lower surface camber section 121, lower plane section 122, stage portion 123 eject slot 101,
Expanded spheres 130, die sleeve 140.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
It is described in detail below with reference to glass hot-bending die 100 of the Fig. 1 to Fig. 5 to the embodiment of the present invention.
Glass hot-bending die 100 according to an embodiment of the present invention may include upper mold 110, lower die 120 and expanded spheres 130.
Wherein, upper mold 110 and lower die 120 are used to form bend glass, and lower die 120 includes lower surface camber section 121 and lower plane
Section 122 is provided with ejection slot 101 in lower surface camber section 121, and the setting of expanded spheres 130 is in ejection slot 101.
When upper mold 110 and lower die 120 do not preheat, expanded spheres 130 are hidden in ejection slot 101, with the promotion of temperature,
130 volume expansion of expanded spheres, expanded spheres 130 exceed the cambered surface of lower surface camber section 121, hold up glass plate embryo material 200 to correct glass
The curvature of plate embryo material 200.
Optionally, expanded spheres 130 are glass marble, and expanded spheres 130 and glass plate embryo material 200 are glass material, therefore
After glass plate embryo material 200 and expanded spheres 130 are heated, adhesive reduction each other facilitates expanded spheres 130 and glass plate embryo
200 separation of material, and expanded spheres 130 contact with glass plate embryo material 200 and do not allow to be also easy to produce point, improve glass plate embryo material 200
Form result.
In addition, expanded spheres 130 during expansion, can squeeze the bending part of glass plate embryo material 200 gradually to rectify
The curvature of positive glass plate embryo material 200.
Expanded spheres 130 can reduce the contact area with glass plate embryo material 200, and then further reduced glass plate embryo material
Point on 200.Expanded spheres 130 disassemble in which can be convenient from ejection slot 101, can after expanded spheres 130 are damaged
The expanded spheres 130 of damage to be removed and replace upper new expanded spheres 130.
In some embodiments of the invention, as shown in Figs 1-4, ejection slot 101 is multiple, and multiple ejection slots 101 are equal
It is even to be distributed in lower surface camber section 121.Corresponding with multiple ejection slots 101, the quantity of expanded spheres 130 is also multiple, multiple expansions
Ball 130 together forms curved surface dot matrix, and multiple expanded spheres 130 hold up glass plate embryo material 200 jointly, correct glass plate embryo material 200
Curvature.
As shown in Figure 1, the stage portion 123 for being used to support glass plate embryo material 200 is provided in lower die 120, in glass plate embryo
Material 200 was not heated or at the initial stage that upper mold 110 and lower die 120 preheat, and glass plate embryo material 200 can be supported on stage portion
On 123, as the temperature rises, glass plate embryo material 200 softens, under the effect of gravity with 110 gravity of upper mold
Under effect, a part of glass plate embryo material 200 bends, and then forms curved face part.
When upper mold 110 and lower die 120 do not mold, upper mold 110 is contacted with glass plate embryo material 200 to heat glass plate embryo material
200.Specifically, it first has to preheat glass plate embryo material 200, it, can be with since glass plate embryo material 200 is nonmetal parts
Heating upper mold 110 and lower die 120 are first passed through, glass plate embryo material is then transferred heat to by upper mold 110 and lower die 120 again
200.Upper mold 110 is contacted with glass plate embryo material 200, and lower die 120 is contacted by stage portion 123 with glass plate embryo material 200, Ke Yifang
Just glass plate embryo material 200 is transferred heat to.
In some embodiments of the invention, as shown in Figure 1-3, glass hot-bending die 100 further includes die sleeve 140, upper mold
After 110 mold in place with die sleeve 140, prepsetting gap is formed between upper mold 110 and lower die 120, at this time the shape of glass plate embryo material 200
Shape basically forms, and glass plate embryo material 200 is arranged in prepsetting gap.
It is preheated firstly the need of to glass plate embryo material 200, after being preheating to certain temperature, continues to heat glass plate embryo material
200 make glass plate embryo material 200 reach glass transition temperature, and glass plate embryo material 200 softens, in self gravity and lower die 120
It is formed under the action of mold clamping force.
Due to the presence of die sleeve 140, upper mold 110 cannot further decline, and then be formed between upper mold 110 and lower die 120
Prepsetting gap, the glass plate embryo material 200 shaped substantially are arranged in prepsetting gap.
In some embodiments of the invention, upper mold 110 is made of graphite material, and graphite material can preferably transmit heat
Amount, and then improve the heating speed of glass plate embryo material 200.
Upper mold 110 includes top-surface camber section 111 and upper planar section 112, top-surface camber section 111 and 121 face of lower surface camber section, upper flat
Face section 112 and 122 face of lower plane section.In specific example of the invention, top-surface camber section 111 is two, and two top-surface cambers
The two sides of upper planar section 112 are arranged in section 111；Lower surface camber section 121 is two, and two lower surface camber sections 121 are arranged in lower plane
The two sides of section 122.
Further, the ripple glaze 111a of strip is provided in top-surface camber section 111.Ripple glaze 111a is multiple and more
A ripple glaze 111a is uniformly distributed along the arcuate directions interval of top-surface camber section 111.
Ripple glaze 111a can reduce the contact area of top-surface camber section 111 Yu glass plate embryo material 200, to further decrease
The formation of point.Ripple glaze 111a can correct the curvature of curved surface of glass plate embryo material 200 together with expanded spheres 130.
Glass plate embryo material and expanded spheres 130 are made of identical material, in specific example of the invention, glass plate embryo material
200 and expanded spheres 130 be made of alumina silicate glass.
The preheating temperature range of upper mold 110 can be at 550-650 DEG C, and the preheating temperature range of lower die 120 can be in 680-
780℃.During heating glass plate embryo material 200, the temperature of upper mold 110 is made to be less than or equal to the temperature (temperature difference of lower die 120
At 0-150 DEG C), the temperature of lower die 120 is less than or equal to the glass transition temperature of glass plate embryo material 200, and (temperature difference is in 150-300
℃)。
The forming process of the bend glass of the embodiment of the present invention is described below in detail.
It is spaced apart between upper mold 110 and lower die 120, glass plate embryo material 200 is arranged in the stage portion 123 of lower die 120, glass
The preheating that glass plate embryo material 200 contacts respectively with upper mold 110 and lower die 120 to realize glass plate embryo material 200；The preheating of upper mold 110
Temperature range is at 550-650 DEG C, and the heat range of lower die 120 is at 680-780 DEG C.
Then glass plate embryo material 200 is heated, so that the temperature of glass plate embryo material 200 reaches glass transition temperature (690-
720 DEG C), glass plate embryo material 200 is bent under the effect of gravity；Then upper mold 110 and die sleeve 140 mold, so that glass
The bending part of plate embryo material 200 further forms, while forming prepsetting gap between upper mold 110 and lower die 120, preliminary molding
Glass plate embryo material 200 is arranged in prepsetting gap.
As the temperature of lower die 120 improves, 130 volume expansion of expanded spheres in lower die 120, and then exceed ejection slot 101,
Glass plate embryo material 200 is held up, the curvature of glass plate embryo material 200, reduction and glass are corrected together with the ripple glaze 111a of upper mold 110
The contact area of plate embryo material 200, and then achieve the purpose that reduce point.Simultaneously because the curvature portion with glass plate embryo material 200
Contact form is dotted line contact, therefore the contact area of glass plate embryo material 200 and upper mold 110 and lower die 120 reduces, and then reduces
The temperature of glass plate embryo material 200, further reduces the formation of point.
The curved surface roughness of glass plate embryo material 200 can be greatly reduced in the glass hot-bending die 100 of the embodiment of the present invention, mention
The high Forming Quality of glass plate embryo material 200.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (9)
1. a kind of glass hot-bending die characterized by comprising
Upper mold；
Lower die, the lower die include: lower surface camber section and lower plane section, are provided with ejection slot in the lower surface camber section；
Glass marble, the glass marble are arranged in the ejection slot, and as temperature increases, the glass marble volume expansion is simultaneously held up
Glass plate blank material.
2. glass hot-bending die according to claim 1, which is characterized in that the ejection slot is multiple, and multiple described
Ejection slot is evenly distributed in the lower surface camber section.
3. glass hot-bending die according to claim 1, which is characterized in that be provided in the lower die described in being used to support
The stage portion of glass plate blank material.
4. glass hot-bending die according to claim 1, which is characterized in that do not molded in the upper mold and the lower die
When, the upper mold is contacted with the glass plate blank material to heat the glass plate blank material.
5. glass hot-bending die according to claim 1, which is characterized in that further include: die sleeve, the upper mold and the mould
After set molding in place, prepsetting gap is formed between the upper mold and the lower die, the glass plate blank material setting is described default
In gap.
6. glass hot-bending die according to claim 1, which is characterized in that the upper mold is made of graphite material.
7. glass hot-bending die according to claim 1, which is characterized in that the upper mold includes: top-surface camber section and upper flat
Face section, the top-surface camber section and the lower surface camber section face, the upper planar section and the lower plane section face.
8. glass hot-bending die according to claim 7, which is characterized in that be provided with strip in the top-surface camber section
Ripple glaze.
9. glass hot-bending die according to claim 8, which is characterized in that the ripple glaze is multiple, and multiple described
Ripple glaze is uniformly distributed along the arcuate directions interval of the top-surface camber section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610932038.1A CN108002694B (en) | 2016-10-31 | 2016-10-31 | Glass hot-bending die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610932038.1A CN108002694B (en) | 2016-10-31 | 2016-10-31 | Glass hot-bending die |
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| Publication Number | Publication Date |
|---|---|
| CN108002694A CN108002694A (en) | 2018-05-08 |
| CN108002694B true CN108002694B (en) | 2019-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610932038.1A Active CN108002694B (en) | 2016-10-31 | 2016-10-31 | Glass hot-bending die |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000084621A (en) * | 1998-09-09 | 2000-03-28 | Showa Alum Corp | Forming method for roll bond panel |
| JP2002346646A (en) * | 2001-05-18 | 2002-12-03 | Fujitsu General Ltd | Press work machine |
| CN2808899Y (en) * | 2005-05-14 | 2006-08-23 | 福耀玻璃工业集团股份有限公司 | Glass plate molding mould |
| CN202226771U (en) * | 2011-08-23 | 2012-05-23 | 信义汽车玻璃(东莞)有限公司 | Glass hot-bending die |
| CN102557402A (en) * | 2010-12-11 | 2012-07-11 | 富泰华工业（深圳）有限公司 | Forming method of curved glass plate and adopted mould thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005343720A (en) * | 2004-06-01 | 2005-12-15 | Nippon Sheet Glass Co Ltd | Method and apparatus for manufacturing curved glass plate |
-
2016
- 2016-10-31 CN CN201610932038.1A patent/CN108002694B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000084621A (en) * | 1998-09-09 | 2000-03-28 | Showa Alum Corp | Forming method for roll bond panel |
| JP2002346646A (en) * | 2001-05-18 | 2002-12-03 | Fujitsu General Ltd | Press work machine |
| CN2808899Y (en) * | 2005-05-14 | 2006-08-23 | 福耀玻璃工业集团股份有限公司 | Glass plate molding mould |
| CN102557402A (en) * | 2010-12-11 | 2012-07-11 | 富泰华工业（深圳）有限公司 | Forming method of curved glass plate and adopted mould thereof |
| CN202226771U (en) * | 2011-08-23 | 2012-05-23 | 信义汽车玻璃(东莞)有限公司 | Glass hot-bending die |
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| Publication number | Publication date |
|---|---|
| CN108002694A (en) | 2018-05-08 |
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