CN109650704A - A kind of 3D hot bending right angle four sides contour glass and its production technology - Google Patents
A kind of 3D hot bending right angle four sides contour glass and its production technology Download PDFInfo
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- CN109650704A CN109650704A CN201910155346.1A CN201910155346A CN109650704A CN 109650704 A CN109650704 A CN 109650704A CN 201910155346 A CN201910155346 A CN 201910155346A CN 109650704 A CN109650704 A CN 109650704A
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- right angle
- hot bending
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- 239000011521 glass Substances 0.000 title claims abstract description 141
- 238000013003 hot bending Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000005516 engineering process Methods 0.000 title claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 33
- 238000010438 heat treatment Methods 0.000 claims abstract description 29
- 238000000465 moulding Methods 0.000 claims abstract description 21
- 238000000748 compression moulding Methods 0.000 claims abstract description 11
- 238000007493 shaping process Methods 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 10
- 238000005496 tempering Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 230000008602 contraction Effects 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 5
- 239000005357 flat glass Substances 0.000 claims description 5
- 239000002826 coolant Substances 0.000 claims description 2
- 230000001815 facial effect Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 description 6
- 235000013372 meat Nutrition 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- 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
- C03B23/0305—Press-bending accelerated by applying mechanical forces, e.g. inertia, weights or local forces
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention discloses a kind of 3D hot bending right angle four sides contour glass and its production technology, the glass, including integrally formed glass body plane and periphery sides, the periphery sides and glass body plane are rectangular, and the thickness of multiple periphery sides is equal.The production technology of the glass includes molding, is gradually warmed up heating, compression molding and cooling and shaping; the contour glass in integrally formed 3D hot bending right angle four sides is produced by the production technology; periphery sides are vertical in 90 ° with glass body plane by interconnecting piece; and the height of four periphery sides is consistent, the screen protecting film and side press-key frame suitable for the following mobile phone are integrated with 3D glass.And the present invention provides the production method of the contour glass in production 3D hot bending right angle four sides, so that the contour glass in 3D hot bending right angle four sides can produce on a large scale.
Description
Technical field
The present invention relates to field of glass production technology, especially a kind of 3D hot bending right angle four sides contour glass and its production
Technique.
Background technique
At present the common shape of the 3D glass of mobile phone be glass body plane and its peripheral edge angle in obtuse angle, and
The height of four peripheral edges is different, larger, the peripheral edge very little of short side of peripheral edge height of long side, such knot
Structure is the shape in order to be bonded mobile phone when 3D glass is mounted on mobile phone well.Mobile phone side press-key position is to be at present
On frame made of another material, frame is connect with 3D glass, but this structure there is frame separated with 3D glass can
Energy property, and mechanical key is after access times are more, it may appear that insensitive phenomenon.So a kind of trend of the following mobile phone
It is that frame is integrally formed by 3D glass, touch technology can be used in side press-key position.But it leads to the problem of therefrom
In, to reach the requirement of the following mobile phone, the periphery sides of 3D glass must be 90 ° vertical with glass body plane, and current
This requirement is much not achieved with 3D glass in mobile phone, because in the difficulty for producing the contour glass in integrally formed right angle four sides
When being cooling, since periphery sides are different from the cooling meat rate of glass body plane, periphery sides and mold cooling meat speed
Rate is different, will lead to periphery sides and generates slight crack or even fragmentation while cooling.
Summary of the invention
For the 3D glass of mobile phone in the prior art and its deficiency of production technology, the present invention provides a kind of 3D hot bending is straight
Angle four sides contour glass and its production technology.
The technical solution of the present invention is as follows: the glass that a kind of 3D hot bending right angle four sides is contour, including integrally formed glass master
Body plane and periphery sides, the periphery sides and glass body plane are rectangular, and the thickness of multiple periphery sides is equal.
The periphery sides are connect with glass body plane by cambered first connecting portion, and adjacent periphery sides are by having
The second connecting portion of radian connects, and the first connecting portion, second connecting portion and glass body plane and periphery sides are integrally formed.
The height of the periphery sides is in 2-5 mm.
The thickness of the glass body plane is in 0.5-1 mm, and the thickness of the periphery sides is in 0.5-1 mm.
The radian of the second connecting portion of adjacent peripheral side junction is 90 ° -135 °.
The radian of the first connecting portion is at 45 ° -90 °.
One end of the glass body plane is provided with the through-hole of corresponding mobile phone part setting.
A kind of production technology of the contour glass in 3D hot bending right angle four sides, its step are as follows,
(1) it molds: being provided with type chamber and type core, the inside of type core is plane, and the edge of inner plane is provided with width
The groove all the same with depth, before the start of production first with dry cloth wipe-off type chamber and type core, after undressed sheet glass is placed in type
It on core, then molds, the mold after molding enters in 3D glass heat pressing forming machines；
(2) heat up heating: preheating first, preheating temperature is 500-550 DEG C, and after preheating completely, mold sequentially enters subsequent add
Hot arc, heating temperature are 550-760 DEG C；
(3) compression molding: after heating completely, the hardness decline of glass becomes soft at this time, the pressurization of 3D glass heat pressing forming machines
Section applies pressure to type chamber, and the glass for being now placed in Core edge groove is bent due to being under pressure into groove；
(4) cool: mold enters the temperature descending section of 3D glass heat pressing forming machines, is cooled down by cold water, and cold water is in cooling section
Flowing, mold cool down when moving in temperature descending section in coolant duct, due to glass edge at this time be in glass
Facial planes is rectangular, and mold is different from the degree that glass is shunk while cooling, and mold is shunk comparatively fast, and also retract is slower, cold
But mold shrinkage ratio glass is fast during, and the contraction rate of mold and glass reaches the journey that glass and mold can just separate
Degree, cooling rear mold of completing exit 3D glass heat pressing forming machines, and finished product is taken out in die sinking；
(5) tempering: glass tempering after molding is handled, and eliminates the stress generated in forming process；
(6) machine-shaping: glass body plane is processed according to demand.
The length of the upper mould and lower die is 170-200 mm, and width is 100-140 mm.
The lower die of the mold is provided with exhaust passage in type core outer, can produce during heating heating and compression molding
Angry body, if mold is not provided with exhaust passage, air volume is pressed in mold, can be produced bigger effect to glass molding, and
Also there is the risk of damage to mold.
The depth of the mold groove is consistent, is 2-5 mm.
The invention has the benefit that the present invention, which passes through, the step such as molds, is gradually warmed up heating, compression molding and cooling and shaping
Suddenly the contour glass in integrally formed 3D hot bending right angle four sides is produced, periphery sides are in by interconnecting piece and glass body plane
90 ° vertical, and the height of four periphery sides is consistent, the screen protecting film and side press-key frame and 3D glass suitable for the following mobile phone
The integration of glass.And the present invention provides the production method of the contour glass in production 3D hot bending right angle four sides, so that 3D hot bending is straight
The contour glass in angle four sides can produce on a large scale.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
In figure, 1- glass body plane, 2- periphery sides, 3- first connecting portion, 4- second connecting portion, 5- through-hole.
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing:
As shown in Figure 1, the glass that a kind of 3D hot bending right angle four sides is contour, including integrally formed glass body plane 1 and periphery
Side 2, at right angles with glass body plane 1, the height of multiple periphery sides 2 is equal for the periphery sides 2.
The periphery sides 2 are connect with glass body plane 1 by cambered first connecting portion 3, and adjacent periphery sides 2 are logical
It crosses cambered second connecting portion 4 to connect, the first connecting portion 3, second connecting portion 4 and glass body plane 1 and periphery sides 2
It is integrally formed.
The height of the periphery sides 2 is in 2-5 mm.
The thickness of the glass body plane 1 is in 0.5-1 mm, and the thickness of the periphery sides 2 is in 0.5-1 mm.
The radian of the second connecting portion 4 of adjacent peripheral side junction is 90 ° -135 °.
The radian of the first connecting portion 3 is at 45 ° -90 °.
One end of the glass body plane 1 is provided with the through-hole 5 of corresponding mobile phone part setting.
A kind of production technology of the contour glass in 3D hot bending right angle four sides, its step are as follows,
Specific embodiment 1:
Molding: being provided with upper die and lower die, and upper mold is type chamber, and lower die is type core, and the inside of lower die model core is plane, flat in inside
The edge in face is provided with width and depth groove all the same, before the start of production first with the type chamber of dry cloth wiping upper mold and
The type core of lower die, after undressed sheet glass is placed on the type core of lower die, then upper die and lower die mold, mold after molding into
Enter in 3D glass heat pressing forming machines；
Heating heating: mold enters the bringing-up section of 3D glass heat pressing forming machines, and totally ten four sections of bringing-up section, first four sections are preheating section,
Preheating temperature is 500 DEG C, and after preheating completely, mold sequentially enters subsequent bringing-up section, and heating temperature is 550 DEG C；
Compression molding: after heating completely, the hardness decline of glass becomes soft at this time, the pressurized segment pair of 3D glass heat pressing forming machines
Upper mold applies pressure, and the glass for being now placed in lower die model core edge groove is bent due to being under pressure into groove；
Cool: mold enters the temperature descending section of 3D glass heat pressing forming machines, is cooled down by cold water, cooling of the cold water in cooling section
It is flowed in liquid pipe road, mold cools down when moving in temperature descending section, since glass edge is flat with inside glass at this time
Face is rectangular, therefore cooling is the committed step of final molding, since mold is different from the degree that glass is shunk while cooling, mould
Tool contraction is very fast, and also retract is slower, and mold shrinkage ratio glass is fast in cooling procedure, therefore the size of mold needs especially
Design, could make during cooling meat, and the contraction rate of mold and glass reaches just glass and mold can separate
Degree, cooling rear mold of completing exit 3D glass heat pressing forming machines, and finished product is taken out in die sinking；
Tempering: glass tempering after molding is handled, and eliminates the stress generated in forming process；
Machine-shaping: glass body plane 1 is processed according to demand.
The length of the upper mould and lower die is 170 mm, and width is 100 mm.
The lower die of the mold is provided with exhaust passage in type core outer, can produce during heating heating and compression molding
Angry body, if mold is not provided with exhaust passage, air volume is pressed in mold, can be produced bigger effect to glass molding, and
Also there is the risk of damage to mold.
The depth of the mold groove is consistent, is 2 mm.
Specific embodiment 2:
Molding: being provided with upper die and lower die, and upper mold is type chamber, and lower die is type core, and the inside of lower die model core is plane, flat in inside
The edge in face is provided with width and depth groove all the same, before the start of production first with the type chamber of dry cloth wiping upper mold and
The type core of lower die, after undressed sheet glass is placed on the type core of lower die, then upper die and lower die mold, mold after molding into
Enter in 3D glass heat pressing forming machines；
Heating heating: mold enters the bringing-up section of 3D glass heat pressing forming machines, and totally ten four sections of bringing-up section, first four sections are preheating section,
Preheating temperature is 520 DEG C, and after preheating completely, mold sequentially enters subsequent bringing-up section, and heating temperature is 600 DEG C；
Compression molding: after heating completely, the hardness decline of glass becomes soft at this time, the pressurized segment pair of 3D glass heat pressing forming machines
Upper mold applies pressure, and the glass for being now placed in lower die model core edge groove is bent due to being under pressure into groove；
Cool: mold enters the temperature descending section of 3D glass heat pressing forming machines, is cooled down by cold water, cooling of the cold water in cooling section
It is flowed in liquid pipe road, mold cools down when moving in temperature descending section, since glass edge is flat with inside glass at this time
Face is rectangular, therefore cooling is the committed step of final molding, since mold is different from the degree that glass is shunk while cooling, mould
Tool contraction is very fast, and also retract is slower, and mold shrinkage ratio glass is fast in cooling procedure, therefore the size of mold needs especially
Design, could make during cooling meat, and the contraction rate of mold and glass reaches just glass and mold can separate
Degree, cooling rear mold of completing exit 3D glass heat pressing forming machines, and finished product is taken out in die sinking；
Tempering: glass tempering after molding is handled, and eliminates the stress generated in forming process；
The length of the upper mould and lower die is 200 mm, and width is 140 mm.
The lower die of the mold is provided with exhaust passage in type core outer, can produce during heating heating and compression molding
Angry body, if mold is not provided with exhaust passage, air volume is pressed in mold, can be produced bigger effect to glass molding, and
Also there is the risk of damage to mold.
The depth of the mold groove is consistent, is 3 mm.
Specific embodiment 3:
Molding: being provided with upper die and lower die, and upper mold is type chamber, and lower die is type core, and the inside of lower die model core is plane, flat in inside
The edge in face is provided with width and depth groove all the same, before the start of production first with the type chamber of dry cloth wiping upper mold and
The type core of lower die, after undressed sheet glass is placed on the type core of lower die, then upper die and lower die mold, mold after molding into
Enter in 3D glass heat pressing forming machines；
Heating heating: mold enters the bringing-up section of 3D glass heat pressing forming machines, and totally ten four sections of bringing-up section, first four sections are preheating section,
Preheating temperature is 550 DEG C, and after preheating completely, mold sequentially enters subsequent bringing-up section, and heating temperature is 760 DEG C；
Compression molding: after heating completely, the hardness decline of glass becomes soft at this time, the pressurized segment pair of 3D glass heat pressing forming machines
Upper mold applies pressure, and the glass for being now placed in lower die model core edge groove is bent due to being under pressure into groove；
Cool: mold enters the temperature descending section of 3D glass heat pressing forming machines, is cooled down by cold water, cooling of the cold water in cooling section
It is flowed in liquid pipe road, mold cools down when moving in temperature descending section, since glass edge is flat with inside glass at this time
Face is rectangular, therefore cooling is the committed step of final molding, since mold is different from the degree that glass is shunk while cooling, mould
Tool contraction is very fast, and also retract is slower, and mold shrinkage ratio glass is fast in cooling procedure, therefore the size of mold needs especially
Design, could make during cooling meat, and the contraction rate of mold and glass reaches just glass and mold can separate
Degree, cooling rear mold of completing exit 3D glass heat pressing forming machines, and finished product is taken out in die sinking；
Tempering: glass tempering after molding is handled, and eliminates the stress generated in forming process；
The length of the upper mould and lower die is 200 mm, and width is 140 mm.
The lower die of the mold is provided with exhaust passage in type core outer, can produce during heating heating and compression molding
Angry body, if mold is not provided with exhaust passage, air volume is pressed in mold, can be produced bigger effect to glass molding, and
Also there is the risk of damage to mold.
The depth of the mold groove is consistent, is 5 mm.
The above embodiments and description only illustrate the principle of the present invention and most preferred embodiment, is not departing from this
Under the premise of spirit and range, various changes and improvements may be made to the invention, these changes and improvements both fall within requirement and protect
In the scope of the invention of shield.
Claims (10)
1. a kind of contour glass in 3D hot bending right angle four sides, it is characterised in that: including integrally formed glass body plane and outside
Surrounding edge, the periphery sides and glass body plane are rectangular, and the thickness of multiple periphery sides is equal.
2. the contour glass in 3D hot bending according to claim 1 right angle four sides, it is characterised in that: the periphery sides and glass
Subject plane is connected by cambered first connecting portion, and adjacent periphery sides are connected by cambered second connecting portion, institute
It states first connecting portion, second connecting portion and glass body plane and periphery sides is integrally formed.
3. the contour glass in 3D hot bending according to claim 1 right angle four sides, it is characterised in that: the height of the periphery sides
In 2-5 mm.
4. the contour glass in 3D hot bending according to claim 1 right angle four sides, it is characterised in that: the glass body plane
Thickness in 0.5-1 mm, the thickness of the periphery sides is in 0.5-1 mm.
5. the contour glass in 3D hot bending according to claim 1 right angle four sides, it is characterised in that: the first connecting portion
For radian at 45 ° -90 °, the radian of the second connecting portion is 90 ° -135 °.
6. the contour glass in 3D hot bending according to claim 1 right angle four sides, it is characterised in that: the glass body plane
One end be provided with the through-hole of corresponding mobile phone part setting.
7. a kind of production technology of the contour glass in 3D hot bending right angle four sides, its feature is as follows: its step are as follows,
(1) it molds: being provided with type chamber and type core, the inside of type core is plane, and the edge of inner plane is provided with width
The groove all the same with depth, before the start of production first with dry cloth wipe-off type chamber and type core, after undressed sheet glass is placed in type
It on core, then molds, the mold after molding enters in 3D glass heat pressing forming machines；
(2) heating heating: preheating first, and preheating temperature is 500-550 DEG C, and after preheating completely, mold heats again, heating temperature
It is 550-760 DEG C；
(3) compression molding: after heating completely, the hardness decline of glass becomes soft at this time, the pressurization of 3D glass heat pressing forming machines
Section applies pressure to upper mold, and the glass for being now placed in lower die model core edge groove is bent due to being under pressure into groove；
(4) cool: mold enters the temperature descending section of 3D glass heat pressing forming machines, is cooled down by cold water, and cold water is in cooling section
Flowing, mold cool down when moving in temperature descending section in coolant duct, due to glass edge at this time be in glass
Facial planes is rectangular, and mold is different from the degree that glass is shunk while cooling, and mold is shunk comparatively fast, and also retract is slower, cold
But mold shrinkage ratio glass is fast during, and the contraction rate of mold and glass reaches the journey that glass and mold can just separate
Degree, cooling rear mold of completing exit 3D glass heat pressing forming machines, and finished product is taken out in die sinking；
(5) tempering: glass tempering after molding is handled, and eliminates the stress generated in forming process,
(6) machine-shaping: glass body plane is processed according to demand.
8. the production technology of the contour glass in 3D hot bending according to claim 7 right angle four sides, it is characterised in that: the mould
The length for having upper die and lower die is 170-200 mm, and width is 100-140 mm.
9. the production technology of the contour glass in 3D hot bending according to claim 7 right angle four sides, it is characterised in that: the mould
The lower die of tool is provided with exhaust passage in type core outer.
10. the production technology of the contour glass in 3D hot bending according to claim 7 right angle four sides, it is characterised in that: described
The depth of mold groove is consistent, is 2-5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910155346.1A CN109650704A (en) | 2019-03-01 | 2019-03-01 | A kind of 3D hot bending right angle four sides contour glass and its production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910155346.1A CN109650704A (en) | 2019-03-01 | 2019-03-01 | A kind of 3D hot bending right angle four sides contour glass and its production technology |
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| Publication Number | Publication Date |
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| CN109650704A true CN109650704A (en) | 2019-04-19 |
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|---|---|---|---|
| CN201910155346.1A Pending CN109650704A (en) | 2019-03-01 | 2019-03-01 | A kind of 3D hot bending right angle four sides contour glass and its production technology |
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| CN207671909U (en) * | 2017-11-27 | 2018-07-31 | 蓝思科技（长沙）有限公司 | A kind of die assembly improving two opposite side differences in height when glass bending is molded |
| US20190127260A1 (en) * | 2016-04-13 | 2019-05-02 | Saint-Gobain Glass France | Bending of sheets of glass |
-
2019
- 2019-03-01 CN CN201910155346.1A patent/CN109650704A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101948236A (en) * | 2010-09-01 | 2011-01-19 | 廖仲明 | Corner glass piece toughening treatment process |
| CN204434470U (en) * | 2015-03-16 | 2015-07-01 | 蓝思科技（长沙）有限公司 | A kind of forming mould for the preparation of bend glass plate |
| CN104860514A (en) * | 2015-05-19 | 2015-08-26 | 青岛元盛光学有限公司 | Production technology for hot bending of bent glass |
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| US20190127260A1 (en) * | 2016-04-13 | 2019-05-02 | Saint-Gobain Glass France | Bending of sheets of glass |
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Application publication date: 20190419 |
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