CN109020173A - A kind of positive pressure bend glass molding die and its heating equipment - Google Patents
A kind of positive pressure bend glass molding die and its heating equipment Download PDFInfo
- Publication number
- CN109020173A CN109020173A CN201810966282.9A CN201810966282A CN109020173A CN 109020173 A CN109020173 A CN 109020173A CN 201810966282 A CN201810966282 A CN 201810966282A CN 109020173 A CN109020173 A CN 109020173A
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- Prior art keywords
- positive pressure
- air
- molding die
- mold
- bend glass
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- 239000011521 glass Substances 0.000 title claims abstract description 73
- 238000010438 heat treatment Methods 0.000 title claims abstract description 51
- 238000000465 moulding Methods 0.000 title claims abstract description 30
- 239000007770 graphite material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 13
- 238000001816 cooling Methods 0.000 abstract description 10
- 230000009477 glass transition Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 63
- 230000000694 effects Effects 0.000 description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 11
- 229910002804 graphite Inorganic materials 0.000 description 11
- 239000010439 graphite Substances 0.000 description 11
- 230000008569 process Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000006121 base glass Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007496 glass forming Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003856 thermoforming Methods 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
- C03B23/0302—Re-forming glass sheets by bending by press-bending between shaping moulds between opposing full-face shaping moulds
-
- 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
- C03B23/0307—Press-bending involving applying local or additional heating, cooling or insulating means
Landscapes
- 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 present invention discloses a kind of positive pressure bend glass molding die and its heating equipment, it include upper mold and lower mold, in addition also there is upper heating plate and lower heating plate, by adding positive pressure hole in upper mold, in addition gas port is added on the corresponding position of upper heating plate, when carrying out Glass Transition molding, barotropic gas is injected to mould inside by the channel that gas port and positive pressure hole are formed, enable the internal glass for being in softening to be close to forming cavity to be cooled and shaped, thoroughly solve because be bonded in cooling procedure it is not firm cause molding fail, the generation of substandard products.
Description
Technical field
The present invention relates to glass processing field, in particular to a kind of glass-forming die and its heating equipment.
Background technique
In glass bending field, traditional glass bending forms preferably control because glass is thicker during forming,
Precision prescribed is low.And in the production of current mobile phone bend glass, it is required that bend glass reaches specific curve form
In the case of, the thickness of bend glass is reduced as much as possible.
The mobile phone glass of general processing curve, usually heats the original sheet glass processed, makes it soft
Change point to be nearby bent, to reach the curve form of needs, because glass itself is very thin, too fast heating and too fast cooling are all
It will lead to the direct fragmentation of glass, so that raw material is scrapped.So in current processing technology, it usually needs the glass of processing is usual
It is followed by mold, is successively stopped in heating zone in process equipment, softened zone, shaping area and cooling zone, guarantees that glass to the greatest extent may be used
It can rapidly heat up, it is not chipping, and can reduce production energy consumption.
But during cooling, it has been found that, glass can not be bonded mold completely sometimes, so that being cooled and shaped
During shape do not formed fully according to the cavity geometry in mold, to produce substandard products.Current is existing
As CN2017112734616 discloses a kind of permeability type bend glass molding die and curve glass forming apparatus in technology,
In disclose a kind of mold with negative pressure, which is to offer negative pressure cavity in the forming cavity of lower mold, utilizes mold
It is the porous property of graphite, by carrying out vacuumize process in the forming cavity in cooling procedure to lower mold, so that being subjected to
The glass of thermoforming is tightly attached on mold, solves the problems, such as that existing glass can not be bonded mold completely.But this method is again
It is that absorption upper layer is carried out by the porous characteristic of graphite because negative pressure cavity is in lower section there is another question
Glass, if the thickness that is, between negative pressure cavity and forming cavity is too big, suction-operated is unobvious；If thick between negative pressure cavity and forming cavity
Degree is too small, then seriously affects the service life of graphite jig, directly enhance production cost, if in addition as draped over one's shoulders in the patent
The part-structure thickness of dew is small and part-structure is thicker, then uneven to glass absorption dynamics, still results in substandard products generation.
Summary of the invention
The problem to be solved in the present invention is how to solve that mold progress can not be bonded completely in glass in cooling procedure
It is cooled and shaped, and increases negative pressure cavity and have the unconspicuous technical problem of adsorption effect of reduced lifetime either.
To solve the above-mentioned problems, the present invention provides a kind of positive pressure bend glass molding die, include upper mold and
Lower mold, the upper mold inside, which is provided with, presents a theatrical performance as the last item on a programme, and forming cavity is provided in the lower mold, the upper mold is under
Mold is cooperated by presenting a theatrical performance as the last item on a programme with the mutually chimeric realization of forming cavity, is provided with positive pressure hole, the positive pressure hole in the upper mold
For from top mold surface to the through-hole on surface of presenting a theatrical performance as the last item on a programme.By adding positive pressure hole in upper mold, it is therefore an objective to by the hole, from outside
Barotropic gas is injected inside the airtight cavity formed when cooperating to upper mold and lower mold, i.e. the air pressure of the upper surface of glass is greater than
The air pressure of its lower surface can make its molding effect more preferably so glass can be tightly attached on lower mold, because of air pressure
It is direct and glass contact, so that the effect of glass gluing is obvious, and pressure is uniform, in addition will not also reduce making for graphite jig
Use the service life.
Preferably, the lower mold is graphite material.Graphite jig itself has porous characteristic, intracavitary high pressure gas
Body can be discharged slowly, can be realized the effect of " side is cooling, side decompression ".In addition property is steady under the graphite condition of high temperature
It is fixed, it is easy to process, it can guarantee the molding precision of glass.
Preferably, positive pressure air-dispersing slot is provided in the lower mold, the positive pressure air-dispersing slot is not connected to forming cavity.
The effect of positive pressure air-dispersing slot is to speed up intracavitary high pressure gas and uniformly sheds, and utilizes the porous characteristic of graphite, the intracorporal height of chamber
Press gas molecule can be by the porous structure of graphite to external diffusion, because diffusion velocity is inversely proportional with graphite thickness, in
Between be provided with positive pressure air-dispersing slot and can accelerate gas and uniformly dissipate.
Preferably, there is multiple positive pressure air-dispersing slots, the positive pressure air-dispersing slot equidistant arrangement.The air-dispersing slot energy of equidistant arrangement
Enough accelerate intracavitary overall gas divergence speed.
Preferably, there are multiple positive pressure air-dispersing slots, the positive pressure air-dispersing slot head and the tail connect.End to end positive pressure air-dispersing
Slot can guarantee the equalization of the air pressure in air-dispersing slot, so that speed when distributing from intracavitary gas is identical, guarantee that intracavity gas dissipates
Lose velocity balance.
Preferably, positive pressure hole has multiple, and the positive pressure hole is uniformly distributed.Multiple positive pressure holes enable to positive pressure to be added
When, disperse impact of the barotropic gas to glass part, the pressure for allowing the glass in soft state to be subject to is more evenly.
A kind of positive pressure bend glass molding die heating equipment includes upper heating plate and lower heating plate, which is characterized in that
There is gas port in the upper heating plate, further include having positive pressure pipeline, the positive pressure pipeline is connect with gas port.On mold
Positive pressure hole and the gas port of upper heating plate be mutually matched, the two forms a complete connected pathways, can allow positive pressure
Gas directly passes through, and in addition upper mold and the contact surface flatness of upper heating plate are higher, and the two is in positive pressure hole and gas port
When with setting, that is, the phenomenon that completing connection, be not in gas leakage.
Preferably, the gas port has multiple, further includes having air flue adapter, and the positive pressure pipeline and air flue turn
The air inlet connection of device is connect, the gas outlet of the air flue adapter is connect with each gas port respectively.The work of air flue adapter
Be by outside transport barotropic gas be uniformly dispersed into different gas ports, can make positive pressure pressurize process more evenly,
The excessive part to softening glass of local air flow is reduced to impact.
The present invention has the following beneficial effects:
1. bend glass assembly significant effect.Because bend glass upper surface uses air pressure to carry out full side to glass as pressure
Position ground pressing, and be gas directly contact provide pressure, so will not occur portion pressing shakiness and impression it is overweight
Problem, and in the case where air pressure reduces, it can also come into full contact with, guarantee continuing for pressure, i.e., so that glass and forming cavity
Fitting continuous and effective, glass be cooled and shaped significant effect.
2. not influencing die life.It is attached to the delicate forming cavity of mold because being to add positive pressure hole using upper mold
Close position is not changed, and will not influence the normal service life of lower mold.
3. releasing pressure automatically.Using the porous characteristic of graphite material, gas can uniformly be discharged during cooling, in addition
Positive pressure air-dispersing slot is added, reasonably intracavitary high pressure gas is equably carried out to accelerate to distribute, after environment is to molding in reduction high pressure
Glass influence.
4. process is soft.The cooperation of multiple gas ports and positive pressure hole is utilized in pressure process, pressure effect is uniform, reduces
Local assault of the barotropic gas to softening glass.
Detailed description of the invention
Fig. 1 is the first perspective view of mold of a kind of positive pressure bend glass molding die of the present invention and its heating equipment.
Fig. 2 is the second perspective view of mold of a kind of positive pressure bend glass molding die of the present invention and its heating equipment.
Fig. 3 is that the perspective view after the mold combination of a kind of positive pressure bend glass molding die of the present invention and its heating equipment cuts open
Face structural schematic diagram.
Fig. 4 is the heating work cross-section structure signal of a kind of positive pressure bend glass molding die of the present invention and its heating equipment
Figure.
Fig. 5 is the air flue adapter perspective cross section knot of a kind of positive pressure bend glass molding die of the present invention and its heating equipment
Structure schematic diagram.
Fig. 6 is the inside air guide of the air flue adapter of a kind of positive pressure bend glass molding die of the present invention and its heating equipment
Pipeline perspective diagram.
Fig. 7 is the air-dispersing slot arrangement mode signal of a kind of positive pressure bend glass molding die of the present invention and its heating equipment
Figure.
Detailed description of the invention: 1 is upper mold, and 11 be positive pressure hole, and 12 is present a theatrical performance as the last item on a programme, and 2 be lower mold, and 21 be forming cavity, and 22 be air-dispersing
Slot, 3 be upper heating plate, and 31 be gas port, and 4 be lower heating plate, and 5 are positive pressure pipeline, and 6 be air flue converter, and 61 be air inlet, 62
It is air slot for gas outlet, 63.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention are more
It is easily readily appreciated by one skilled in the art, to make apparent define to protection scope of the present invention.
Embodiment 1
In the present embodiment, barotropic gas selects nitrogen as barotropic gas, and for mould structure as shown in attached drawing 1 ~ 3, mold includes upper
Mold 1 and lower mold 2, the manufacture material of mold are graphite.Include positive pressure hole 11 in upper mold 1 and present a theatrical performance as the last item on a programme 12, presenting a theatrical performance as the last item on a programme 12 sets
It sets in the lower surface of upper mold 1, the upper surface and lower surface that upper mold 1 is arranged in are run through in positive pressure hole 11, and are set in the mold
On heart position.It further include having locking foot, locking foot is arranged on the quadrangle of upper mold 1.It include 21 He of forming cavity in lower mold 2
Air-dispersing slot 22, forming cavity 21 is specifically located at the one side of lower mold 2, and the another side of lower mold 2 is then arranged in air-dispersing slot 22, dissipates
It is not interconnected between air drain 22 and forming cavity 21.Air-dispersing slot 22 specifically has 4, and joins end to end and to form the ring of a class rectangle
Shape slot.It further include having locking groove, the quadrangle of lower mold 2 is arranged in locking groove, can cooperate and engage with locking foot, and it is fixed to have
The effect of position and fastening upper/lower die 2.
Placement relationship between the structure and heating equipment and mold of heating equipment is as shown in Fig. 4, and heating equipment is specific
It include upper heating plate 3 and lower heating plate 4, upper heating plate 3 is that the position in the positive pressure hole 11 of upper mold 1 is provided with gas port 31,
Enable gas port 31 and positive pressure hole 11 to complement each other to form barotropic gas channel, and is then provided with positive pressure on gas port 31
Pipeline 5,5 one end of positive pressure pipeline are connect with gas port 31, and the other end is then connect with external barotropic gas supply equipment.Mold setting
Between upper heating plate 3 and lower heating plate 4, and the setting of upper mold 1, in upper 3 side of heating plate, lower mold 2 is arranged in lower heating plate
4 sides.
In progress in use, base glass to be softened is put into mold first, because glass is planar structure at this time,
Width is larger, is stuck in the wider top of forming cavity 21, has certain interval with 21 lower part of forming cavity at this time, which has gas
Body；And present a theatrical performance as the last item on a programme at this time 12 and glass contact, the gap presented a theatrical performance as the last item on a programme between 12 and glass still have gas.It completes after placing, by band
There is the upper mold 1 of base glass to be heated with lower mold 2, when close to the softening point for reaching glass, mold is placed on this
In the invention heating equipment, that is, it is placed between heating plate 3 and lower heating plate 4 to continue through heating plate and continue heating and rises
Temperature.When placing, need positive pressure hole 11 and gas port 31 carrying out contraposition matching, because of the contact of upper heating plate 3 and upper mold 1
Facial plane degree is high, so that two holes are capable of forming a channel, and air-tightness is good.When glass starts softening, 12 meetings of presenting a theatrical performance as the last item on a programme will soften
Glass indentation forming cavity 21 in, the gas in forming cavity 21 can be extruded partially, another part can hinder glass and molding
The fitting of 21 surface volume of chamber, influences to form.At this point, by external barotropic gas by guide pipeline, using gas port 31 and just
Hole 11 is pressed, upper mold 1 is directly entered and is combined the inside cavity formed with lower mold 2.At this point, barotropic gas is in softened glass
Above glass, and the glass contact with entire soft state, because the upper surface air pressure of soft state glass is greater than lower surface,
The glass of soft state is pressed downward, on the one hand extra air can be squeezed out, on the other hand can oppress the glass of soft state
The tightly surface of assembly chamber 21 makes it according to molding surface forming.
After completing molding, it can stop heating, be cooled down.In cooling procedure, because whole structure is not scattered,
Good leak tightness continues to oppress glass so intracavitary barotropic gas does not still disperse, so that glass is in cooling procedure
In can also fit closely forming cavity 21.On the other hand, in order to make it is subsequent leave do not make glass receive air pressure pressure change
It is excessive, so needing to carry out gradually air-dispersing to intracavitary high enterprise's gas.Graphite itself has porous characteristic, is stopping injecting
After barotropic gas, gas and air-dispersing can be carried out from each orientation of mold, there is air-dispersing slot 22, Neng Gou in the lower section of lower mold 2
During air-dispersing, allows gas to rapidly enter air-dispersing slot 22, achieve the effect that air-dispersing.
After being down to certain temperature, upper/lower die 2 will continue to cool down with molding bend glass, work as upper mold
1 when leaving heating plate 3, and positive pressure hole 11 is connected to extraneous gas, but because at this time the positive pressure environment of inside cavity already close to
The air pressure change that normal external environment, i.e. glass are born is little.
Embodiment 2
In the present embodiment, the difference from embodiment 1 is that, the positive pressure hole 11 in upper mold 1 is with 24 and evenly distributed, corresponding
Upper heating plate 3 in gas port 31 also be 24.Further include having air flue converter 6, air flue converter 6 as shown in attached drawing 5 ~ 6,
Include 1 air inlet 61 and 24 gas outlet 62, in inside there is air slot 63 to be attached.
Air flue converter 6 is arranged between guide pipeline and upper heating plate 3, the air inlet of guide pipeline and air flue converter 6
Mouth 61 connects, and the gas port 31 of gas outlet 62 and upper heating plate 3 aligns, and gas port 31 and the contraposition of positive pressure hole 11, i.e. venthole,
Gas port 31 and positive pressure hole 11 form a channel.When carrying out barotropic gas addition, extraneous gas provides device to guide pipeline
Barotropic gas is provided, barotropic gas can enter inside air slot 63 by air inlet 61, because barotropic gas can be to all directions
Movement can be moved equably to each gas outlet 62, and led to by what gas outlet 62, gas port 31 and positive pressure hole 11 were formed
Road enters inside cavity, so that inside cavity air inlet uniformity.
Embodiment 3
In the present embodiment, the difference from embodiment 1 is that, the barotropic gas of selection is helium, and the arrangement mode of air-dispersing slot 22 is
A plurality of 22 equidistant arrangement of air-dispersing slot, as shown in Fig. 7, which can be improved air-dispersing effect whole in forming cavity 21,
So that air-dispersing effect is more evenly.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Mode within the knowledge of a person skilled in the art can also be without departing from the purpose of the present invention
Various changes can be made.
Claims (8)
1. a kind of positive pressure bend glass molding die includes upper mold (1) and lower mold (2), the upper mold (1) inside
It is provided with present a theatrical performance as the last item on a programme (12), is provided with forming cavity (21) in the lower mold (2), the upper mold (1) and lower mold (2) are logical
Cross the mutually chimeric realization cooperation of present a theatrical performance as the last item on a programme (12) and forming cavity (21), which is characterized in that be provided with positive pressure in the upper mold (1)
Hole (11), the positive pressure hole (11) are the through-hole from upper mold (1) surface to (12) surface of presenting a theatrical performance as the last item on a programme.
2. a kind of positive pressure bend glass molding die according to claim 1, which is characterized in that the lower mold (2)
For graphite material.
3. a kind of positive pressure bend glass molding die according to claim 2, which is characterized in that the lower mold (2)
In be provided with positive pressure air-dispersing slot (22), the positive pressure air-dispersing slot (22) is not connected to forming cavity (21).
4. a kind of positive pressure bend glass molding die according to claim 3, which is characterized in that have multiple positive pressure air-dispersings
Slot (22), described positive pressure air-dispersing slot (22) equidistant arrangement.
5. a kind of positive pressure bend glass molding die according to claim 3, which is characterized in that have multiple positive pressure air-dispersings
Slot (22), positive pressure air-dispersing slot (22) head and the tail connect.
6. a kind of positive pressure bend glass molding die according to claim 1, which is characterized in that the positive pressure hole (11)
It is uniformly distributed with multiple, described positive pressure holes (11).
7. a kind of positive pressure bend glass molding die heating equipment includes upper heating plate (3) and lower heating plate (4), feature
It is that there are gas port (31) in the upper heating plate (3), further include having positive pressure pipeline (5), the positive pressure pipeline (5)
It is connect with gas port (31).
8. a kind of positive pressure bend glass molding die heating equipment according to claim 7, which is characterized in that described leads
Stomata (31) have it is multiple, further include having air flue adapter, the air flue converter (6) includes air inlet (61), air guide
Slot (63) and multiple gas outlets (62), the air inlet (61) is connect with gas outlet (62) part by air slot (63), described
Positive pressure pipeline (5) connect with the air inlet (61) of air flue adapter, the gas outlet (62) of the air flue adapter respectively with
Each gas port (31) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810966282.9A CN109020173A (en) | 2018-08-23 | 2018-08-23 | A kind of positive pressure bend glass molding die and its heating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810966282.9A CN109020173A (en) | 2018-08-23 | 2018-08-23 | A kind of positive pressure bend glass molding die and its heating equipment |
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| Publication Number | Publication Date |
|---|---|
| CN109020173A true CN109020173A (en) | 2018-12-18 |
Family
ID=64627084
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810966282.9A Pending CN109020173A (en) | 2018-08-23 | 2018-08-23 | A kind of positive pressure bend glass molding die and its heating equipment |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109836033A (en) * | 2019-01-04 | 2019-06-04 | 秦皇岛博硕光电设备股份有限公司 | Hot air forming method, hot gas move molding machine and hot gas moves formation system |
| CN110091533A (en) * | 2019-05-21 | 2019-08-06 | 福建省锐驰电子科技有限公司 | A kind of high production technology for stretching curved surface panel of PMMA abnormity |
| CN110143752A (en) * | 2019-06-27 | 2019-08-20 | Oppo广东移动通信有限公司 | Hot-pressing mold, curved glass hot-pressing forming method and application thereof |
| CN111825314A (en) * | 2019-04-18 | 2020-10-27 | 富泰华工业（深圳）有限公司 | Glass bending method and mold |
| CN112142304A (en) * | 2019-06-27 | 2020-12-29 | Oppo（重庆）智能科技有限公司 | Die-casting die, shell die-casting system, manufacturing method, shell and electronic equipment |
| CN112679078A (en) * | 2019-10-18 | 2021-04-20 | 东捷科技股份有限公司 | Curved glass forming equipment |
| CN113021863A (en) * | 2019-12-25 | 2021-06-25 | 深圳市万普拉斯科技有限公司 | Air explosion film pasting die, air explosion film pasting system and film pasting method using air explosion film pasting die |
| CN115611501A (en) * | 2022-09-21 | 2023-01-17 | 广东华中科技大学工业技术研究院 | Hot bending machine applying precise electric cylinder |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112142304A (en) * | 2019-06-27 | 2020-12-29 | Oppo（重庆）智能科技有限公司 | Die-casting die, shell die-casting system, manufacturing method, shell and electronic equipment |
| CN112679078A (en) * | 2019-10-18 | 2021-04-20 | 东捷科技股份有限公司 | Curved glass forming equipment |
| CN112679078B (en) * | 2019-10-18 | 2022-10-28 | 东捷科技股份有限公司 | Curved glass forming equipment |
| CN113021863A (en) * | 2019-12-25 | 2021-06-25 | 深圳市万普拉斯科技有限公司 | Air explosion film pasting die, air explosion film pasting system and film pasting method using air explosion film pasting die |
| CN115611501A (en) * | 2022-09-21 | 2023-01-17 | 广东华中科技大学工业技术研究院 | Hot bending machine applying precise electric cylinder |
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Effective date of registration: 20230418 Address after: No.377, intelligent First Street, Songbei District, Harbin City, Heilongjiang Province Applicant after: HEILONGJIANG TETONG ELECTRIC Co.,Ltd. Address before: 516221 Jiangjun Road, Qiuchang Chayuan village, Huiyang District, Huizhou City, Guangdong Province Applicant before: HUIZHOU NIUKAWO TECHNOLOGY CO.,LTD. |
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Application publication date: 20181218 |