CN105731772A - Glass cover plate hot bending die and hot bending preparation system and process of glass cover plate - Google Patents
Glass cover plate hot bending die and hot bending preparation system and process of glass cover plate Download PDFInfo
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- CN105731772A CN105731772A CN201610076268.2A CN201610076268A CN105731772A CN 105731772 A CN105731772 A CN 105731772A CN 201610076268 A CN201610076268 A CN 201610076268A CN 105731772 A CN105731772 A CN 105731772A
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- glass cover
- plate
- hot bending
- processed
- plate hot
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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
- C03B23/0305—Press-bending accelerated by applying mechanical forces, e.g. inertia, weights or local forces
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
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Abstract
The invention provides a glass cover plate hot bending die and a hot bending preparation system and process of a glass cover plate.The glass cover plate to be processed is provided, the glass cover plate hot bending die comprises a lower die body, a cavity and four or more glass balls, the cavity is formed in the lower die body, the four glass balls are evenly distributed between the cavity and the lower die body, the glass cover plate to be processed is arranged on the cavity, and when the glass cover plate hot bending die is heated to be close to and lower than the lowest softening temperature of the glass cover plate to be processed, the glass cover plate to be processed and the glass balls are softened and deformed after being pressed.Due to the arrangement of the glass balls, the action of force originally exerted on the glass cover plate to be processed is dispersed evenly, so that the problem that the local area of the glass cover plate to be processed is uneven or concentrate in stress due to excessively large pressure is reduced.
Description
[technical field]
The present invention relates to glass cover-plate preparation field, particularly relate to a kind of glass cover-plate hot bending die, glass cover-plate hot bending preparation system and technique thereof.
[background technology]
Namely glass cover-plate protects glass, and along with the upgrading of product requirement, market is also more and more higher for the requirement of glass screen.At present, glass dry plate is generally divided into flat glass cover plate and non-plane glass cover plate by market, and wherein, its zone line that non-plane glass cover plate refers to can be a plane or cambered surface, and adopts cambered surface transition in the marginal portion of glass cover-plate.The advantage of non-plane glass cover plate is in that the good looking appearance degree of significant increase mobile phone and improves user's experience when using screen contact action, therefore obtain and be increasingly widely applied, the higher the requirement equally also processing technique of glass cover-plate proposed.
The preparation of existing non-plane glass cover plate is generally adopted cold working mode, the edge of flat glass is ground polishing and obtains cambered surface edge, adopt cold working preparation method easily to make processing obtain and tiny crackle occurs in non-plane glass cover plate, greatly have impact on yields prepared by glass cover-plate.It would therefore be highly desirable to the preparation technology of glass cover-plate is improved.
[summary of the invention]
For the defect overcoming current non-plane glass cover plate to prepare, the present invention provides a kind of easy and simple to handle, glass cover-plate hot bending die, glass cover-plate hot bending preparation system and technique thereof that quality of finished stability is high.
The present invention solves that above-mentioned technical problem proposes a technical scheme: a kind of glass cover-plate hot bending die, glass cover-plate to be processed is provided, described glass cover-plate hot bending die includes a counterdie, one die cavity and at least four glass bead, described die cavity is arranged within described counterdie, four described glass beads uniformly divide between described die cavity and described counterdie, described glass cover-plate to be processed is located on described die cavity, when described glass cover-plate hot bending die being heated to close and lower than described glass cover-plate to be processed minimum softening temperature, described glass cover-plate to be processed and the softening of described glass bead deformation after pressurized.
Preferably, the upper surface of the lower surface of described die cavity and described counterdie is oppositely arranged, the lower surface of described die cavity includes at least four the first circular groove, and the upper surface of described counterdie includes at least four the second circular groove, and described first circular groove and described second circular groove match setting.
Preferably, when the top-surface camber of described glass bead contacts with described first circular groove and the lower surface camber of described glass bead contacts with described second circular groove, between lower surface and the upper surface of described counterdie of described die cavity, there is gap.
Preferably, the height sum of the height of described first circular groove and described second circular groove is less than the diameter of described glass bead, and the diameter of described glass bead is 6-12mm.
Preferably, described glass cover-plate hot bending die farther includes mould on, and described upper mould includes the upper surface of a boss, the lower surface of described boss and described die cavity and is oppositely arranged, and described boss is suitable with described glass cover-plate size to be processed.
Preferably, the lower surface of described boss is plane or cambered surface with the upper surface of described die cavity.
Preferably, described boss includes four cambered surface limits, and described counterdie includes an indent platform, and the inside upper part of described indent platform includes at least one arc groove, setting is mated on described cambered surface limit with described arc groove, and described glass cover-plate edge to be processed contacts with described arc groove.
Preferably, described arc groove is shaped as rectangle frame, C type frame；Or described arc groove is for be arrangeding in parallel and opposite sides.
The present invention solves that above-mentioned technical problem proposes another technical scheme: a kind of glass cover-plate hot bending preparation system, described glass cover-plate hot bending preparation system includes glass cover-plate hot bending die described above, described glass cover-plate hot bending preparation system farther includes at least one heating workshop section, a pressing section, cooling workshop section and a transporter, and described glass cover-plate hot bending die is driven and sequentially enters described heating workshop section, described pressing section and described cooling workshop section by described transporter and is heated, presses and cooling down operation.
The present invention solves that above-mentioned technical problem proposes another technical scheme: a kind of glass cover-plate hot bending preparation technology, one glass cover-plate to be processed is provided, one counterdie, a die cavity and at least four glass bead are provided, described glass cover-plate hot bending preparation technology at least comprises the steps: step 1, and the upper surface at described counterdie puts glass bead described at least four；Step 2, is placed on described glass bead by described die cavity, and described die cavity lower surface is parallel with the upper surface of described counterdie；Step 3, puts described glass cover-plate to be processed at described die cavity upper surface；And step 4, described glass cover-plate to be processed is heated after-applied pressure, described glass cover-plate to be processed and the softening of described glass bead deformation after pressurized.
With relative to prior art, described glass cover-plate hot bending die provided by the present invention, described glass cover-plate hot bending preparation system and described glass cover-plate hot bending preparation technology can be used for the preparation (such as 2.5D glass cover-plate and 3D glass cover-plate) of non-plane glass cover plate, by arranging at least four glass bead (as being six) under described glass cover-plate to be processed, and make described glass cover-plate to be processed and described glass bead jointly by under the state of thermal softening, deform after pressurized, setting due to described glass bead, the former power effect (such as stress) being applied on described glass cover-plate to be processed can be made dispersed, thus the local reducing described glass cover-plate to be processed is subject to excessive pressure and the problem that inequality or stress are concentrated occurs.
[accompanying drawing explanation]
Fig. 1 is the structural representation of first embodiment of the invention glass cover-plate hot bending die.
Fig. 2 is the top view of the upper mould of glass cover-plate hot bending die shown in Fig. 1.
Fig. 3 is the upward view of the counterdie of glass cover-plate hot bending die shown in Fig. 1.
Fig. 4 A is the top view of the counterdie of glass cover-plate hot bending die shown in Fig. 1.
Fig. 4 B is counterdie shown in Fig. 4 A along the generalized section in A-A direction.
Fig. 5 A is the enlarged diagram at C place shown in Fig. 4 B.
Fig. 5 B is the enlarged diagram of B place shown in Fig. 1.
Fig. 6 is the top view of a variant embodiment of counterdie shown in Fig. 4 A.
Fig. 7 is the top view of the positioner of glass cover-plate hot bending die shown in Fig. 1.
Fig. 8 is the enlarged diagram of D place shown in Fig. 1.
Fig. 9 is the structural representation of second embodiment of the invention glass cover-plate hot bending preparation system.
Figure 10 A-Figure 10 C is the view adopting glass cover-plate hot bending die provided by the invention that glass cover-plate hot bending is processed.
[detailed description of the invention]
In order to make the purpose of the present invention, technical scheme and advantage are clearly understood, below in conjunction with accompanying drawing and embodiment, the present invention are further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
It should be strongly noted that in the present invention, when element is referred to as " being arranged at " or " being located at " another element, it can directly on another element or can also there is centering elements.Term as used herein " vertically ", " level ", " on " and D score and similar statement are for illustrative purposes only, it is not intended that the restriction present invention.
Refer to Fig. 1 and Fig. 2, first embodiment of the invention provides a glass cover-plate hot bending die 10, described glass cover-plate hot bending die 10 to can be used for that by hot bending process, flat glass cover plate (not shown) is prepared edge to have certain non-plane glass cover plate.
Described glass cover-plate hot bending die 10 includes mould 20, die cavity 30, counterdie 40, positioner 50 and a buffer unit 60 on one, wherein, described upper mould 20 is arranged on described die cavity 30, described die cavity 30 can be contained within described counterdie 40, and described positioner 50 is arranged between described upper mould 20 and described die cavity 30.
Described upper mould 20 is a flat board with a boss 21, and mould 20 includes through hole 22 at least four on described, and in the present embodiment, described upper through hole 22 is four, and described upper through hole 22 is separately positioned on four corners on described upper mould 20 surface.Four corners of the lower surface of described boss 21 are respectively provided with a cambered surface limit 211.The lower surface of described boss 21 is burnishing surface, and the lower surface of described boss 21 contacts with described glass cover-plate.
In the present invention, the lower surface of described boss 21 can be plane or cambered surface.
Refer to Fig. 3, described die cavity 30 is a flat board being dimensioned slightly smaller than glass cover-plate size to be processed, described die cavity 30 includes upper and lower major surfaces (non-label), and the upper surface of described die cavity 30 is burnishing surface, and the upper surface of described die cavity 30 contacts with described glass cover-plate.The thickness of described die cavity 30 is 8-30mm, and the thickness of described die cavity 30 is more preferably 8-20mm.The following table of described die cavity 30 forms at least four the first circular hole groove 31 towards described die cavity 30 inner recess, and the height of described first circular hole groove 31 can be 2-7mm, and in the present embodiment, the quantity of described first circular hole groove 31 is six.
In the present invention, the upper surface of described die cavity 30 is plane or cambered surface.
Refer to Fig. 4 A, described counterdie 40 is a concave structure, described counterdie 40 includes indent platform 401 and a frame 402, described indent platform 401 is arranged within described frame 402, described indent platform 401 farther includes two fixed vias 43 and at least six the second circular hole groove 42, described second circular hole groove 42 is uniformly arranged on the corresponding both sides of described indent platform 401 respectively, in some preferably embodiment, described second circular hole groove 42 is arranged on the dual-side that described indent platform 401 is longer, the height of described second circular hole groove 42 is about 2-7mm.
Four corners of described frame 402 farther include four lower through-holes 41, described lower through-hole 41 matches with described upper through hole 22, by described lower through-hole 41 and described on insert latch or screw etc. between through hole 22, can make to align between described upper mould 20 with described counterdie 40 and be connected.
In the present embodiment, described counterdie 40 farther include first arc groove 44 being arranged on described frame 402 inside upper part, described first arc groove 44 is a rectangular ring structure.
Refer to Fig. 4 B and Fig. 5 A, it it is the generalized section of the first arc groove 44, the globoidal structure of described first arc groove 44 is that the cambered surface angle of described first arc groove 44 is expressed as a1 slightly below the height of the other end towards the height of the one end within described counterdie 40.Described first cambered surface groove 44 be shaped as rectangle frame.Four edges adopting the non-plane glass cover plate that described first cambered surface groove 44 prepares are cambered surface.
As shown in Figure 5 B, being the cambered surface limit 211 of the described boss 21 of described upper mould 20, the cambered surface angle on described cambered surface limit 211 is a2.
In some preferably embodiment, described first cambered surface groove 44 matches with described cambered surface limit 211.Selecting of described cambered surface angle a1 and described cambered surface angle a2 is relevant with the edge cambered surface of described glass cover-plate to be processed, owing to described first cambered surface groove 44 and described cambered surface limit 211 correspond respectively to the outer surface of described glass cover-plate to be processed, (inner surface of described glass cover-plate is the one side towards display module, and the outer surface of described glass cover-plate is the described glass cover-plate one side towards user with inner surface.)
As shown in Figure 6, a variant embodiment for counterdie 40 of the present invention, in this variant embodiment, described counterdie 40 ' is distinctive in that with above-mentioned counterdie 40: described counterdie 40 ' includes two symmetrically arranged described first fixed structures 401 ' and two symmetrically arranged described second fixed structures 402 ', separately positioned between described first fixed structure 401 ' and described second fixed structure 402 '.Described counterdie 40 ' includes two the second cambered surface grooves 44 ' being arranged on described first fixed structure 401 ' inside upper part, the features of shape of described cambered surface groove 44 ' is for being set in parallel in opposite sides, and the globoidal structure feature of described second cambered surface groove 44 ' is identical with described first cambered surface groove 44.The edge adopting the opposite sides of the non-plane glass cover plate that described second cambered surface groove 44 ' prepares is cambered surface.
In some embodiments of the invention, described first arc groove 44 can be also C type frame etc., is not herein limited by restriction.
Described positioner 50 is for fixed placement glass cover-plate on described die cavity 30, and described positioner 50 can be set directly on described die cavity 30, for as described in the corresponding projection in key hole on glass cover-plate, TV hole site.As shown in Figure 7, if without hole on glass cover-plate to be processed, then can adopt location-plate 501 that described glass cover-plate is fixed, described location-plate 501 includes four positioning through hole 51, there is the flat board 52 of opening and be arranged on the deformable list structure 53 of described opening (non-label) inner side, described positioning through hole 51 be positioned at described in there are four corners of flat board 52 of opening.The size of described opening inner side and described glass cover-plate to be processed matches, when described location-plate 501 coordinates with described glass cover-plate to be processed, described deformable list structure 53 deforms upon, so that described glass cover-plate to be processed more can be combined closely with described location-plate 501.In certain embodiments, described positioning through hole 51 and described upper through hole 22, described lower through-hole 41 match setting can pass through to insert latch or screw etc. and be attached.
Refer to Fig. 8, described buffer unit 60 includes at least four glass bead 601, in the cavity that second circular hole groove 42 of the first circular hole groove 31 and described counterdie 40 that described glass bead 601 is arranged on described die cavity 30 complements each other to form, after described glass bead 601 is placed in described first circular hole groove 31 and described second circular hole groove 42, still there is between described die cavity 30 and described counterdie 40 certain space d1.
In the present invention, the height sum of the height of described first circular groove 31 and described second circular groove 42 is less than the diameter of described glass bead 601.The diameter of described glass bead 601 is 6mm-12mm, and the diameter of described glass bead 601 is preferably 7mm-10mm, and in the present embodiment, the diameter of described glass bead 601 is 8mm.
The quantity of described glass bead 601 is preferably six, eight, ten etc., in the present embodiment, the quantity of described glass bead 601 is chosen as six, described first circular groove 31, described second circular groove 42 quantity and position and described glass bead 601 match.Described glass bead 601 is uniformly distributed power transmission after can making described glass cover-plate pressurized to be processed and is more uniformly distributed.
In some embodiments of the invention, the material of described glass bead 601 can be calcium soda-lime glass, lead bearing glass, coloured glass etc..
Refer to Fig. 9, the second embodiment of the present invention provides a glass cover-plate hot bending preparation system 90, described glass cover-plate hot bending preparation system 90 includes multiple described glass cover-plate hot bending die 10, and described glass cover-plate hot bending preparation system 90 is for being heated described glass cover-plate to be processed, press and cooling down operation.Heating workshop section 91, pressing section 91, temperature that described glass cover-plate hot bending preparation system 90 includes setting gradually adjusts workshop section 93,1 first and cools down workshop section 94 and one second cooling workshop section 95.Described glass cover-plate hot bending preparation system 90 farther includes an actuating device, described actuating device can drive described glass cover-plate hot bending die 10 sequentially pass through described heating workshop section 91, described pressing section 91, described temperature adjust workshop section 93, described first cooling workshop section 94 and described second cooling workshop section 95.
Wherein, described heating workshop section 91 includes at least three the first heating station 911, described at least three, the heating upper limit of the first heating station 911 increases successively, in the present embodiment, the quantity of described first heating station 911 is chosen as four, and the heating upper limit of four described first heating stations 911 is followed successively by 600 DEG C, 650 DEG C, 730 DEG C and 750 DEG C.In the present invention, the heating upper limit of described heating workshop section 91 can be adjusted according to the material of described glass cover-plate to be processed, when as described in glass cover-plate to be processed be soda-lime glass time, four described first heating station 911 heating upper limit are 600 DEG C, and when described glass cover-plate to be processed is high lead glass, described four described first heating station 911 heating upper limit are then about 700 DEG C.
In described heating workshop section 91, the heating upper limit of multiple described first heating stations 911 not easily exceedes the minimum softening of described glass cover-plate to be processed.The too high surface easily making described glass cover-plate to be processed of temperature forms pit, makes the quality variation of the glass cover-plate finished product after whole hot bending.
The present invention some preferably in embodiment, described first heating station 911 farther includes on one heater block 912 and once heater block 913, described upper heater block 912 and described lower heater block 913 are all for being made up of at least three heating rod (not shown), as in the present embodiment, the quantity of the heating rod of described upper heater block 912 and described lower heater block 913 is 5, the temperature of described heating rod is increased to both sides by middle part, as being 1000 DEG C, 900 DEG C, 750 DEG C, 900 DEG C and 1000 DEG C.
The distribution mode of four described first heating station 911 temperature is conducive to the described glass cover-plate hot bending die 10 entering described heating workshop section 91 to be subject to uniform and stable heating.
Described pressing section 92 can be divided into the first shaping station 921 and the second shaping station 922, described first shaping station 921 has a cylinder (not shown) to drive with described second shaping station 922 respectively, realize the pressing to described upper mould 20, as shown in FIG., described first shaping station 921 includes pressure part 923, described pressing down section part 923 is by described air cylinder driven, progressively it is pressed downward against, the upper surface of described pressing down section part 923 and described upper mould 20, and progressively press down described upper mould 20, make temperature close to and during lower than the minimum softening temperature of described glass cover-plate to be processed, deform after described glass cover-plate pressurized to be processed.The structure of described second shaping station 921 and operation principles are identical with described first shaping station 922, do not repeat them here.
The time that described glass cover-plate hot bending die 10 carries out pressing in described first shaping station 921 with described second shaping station 922 can be adjusted according to the material of described glass cover-plate to be processed and thickness, may generally be 30s-200s.
Described temperature adjusts workshop section 93 and is distinctive in that with the described structure heating workshop section 91 and principle thereof, and described temperature adjusts the heating-up temperature heating-up temperature lower than described heating workshop section 91 of workshop section 93.
The present invention described heating workshop section 91 in temperature step up, make the glass cover-plate described to be processed being placed in described glass cover-plate hot bending die 10 progressively heat up and reach close to and lower than its minimum softening temperature.Described glass cover-plate to be processed is after completing hot bending and compressive deformation, and the described temperature of the entrance present invention adjusts temperature in workshop section 93 and progressively declines, and makes described glass cover-plate to be processed progressively lower the temperature and hardened forming.
Described first cooling workshop section 94 and described second cooling workshop section 95 are for lowering the temperature to described glass cover-plate hot bending die 10 further, in the present embodiment, described first cooling workshop section 94 and described second cooling workshop section 95 adopt water cooling mode, make the described heat-bending glass cover plate of described glass cover-plate hot bending die 10 and interior storing thereof cool down molding further.Wherein, described first cooling workshop section 94 cools down workshop section 95 with described second and is distinctive in that: described first cooling workshop section 94 adjusts workshop section 93 with described temperature and is connected, the chilling temperature of described first cooling workshop section 94 is subject to described temperature and adjusts the impact of workshop section 93, therefore, the chilling temperature of described first cooling workshop section 94 is higher than the chilling temperature of described second cooling workshop section 95.
In the present embodiment, adjust workshop section 93, first from described temperature and cool down workshop section 94 to described second cooling workshop section 95, temperature is gradually reduced, so that the described heat-bending glass cover plate of described glass cover-plate hot bending die 10 and interior storing thereof is progressively lowered the temperature, thus avoiding crackle occurring owing to cooling down rapidly or makes the glass cover-plate of hot bending that the problems such as stress concentration to occur, and affect the quality of heat-bending glass cover plate finished product.
In the present invention, in order to make described glass cover-plate hot bending die 10 obtain more excellent glass bending effect, in the present invention, described glass cover-plate hot bending preparation system 90 farther includes a control module (not shown) and and drives module (not shown), described control module is used for controlling described driving module, and described driving module adjusts workshop section 93, described first cooling workshop section 94 and described second the cooling unlatching of workshop section 95, Guan Bi for driving described heating workshop section 91, described pressing section 91, described temperature.
The present invention some preferably in embodiment, moving up and down between described upper mould 20 with described counterdie 40 can realize automation mechanized operation with coordinating, as adopted pneumatic means (not shown) to be driven, so that between described counterdie 20 and described counterdie 40 can pressing more accurately, improve yields prepared by described non-plane glass cover plate.
Adopt the preparation process that glass cover-plate hot bending die 10 of the present invention carries out non-plane glass cover plate as follows:
Step 1, places described counterdie 40 in a support platform (not shown), and the center of described support platform is provided with two cylinders, described cylinder may pass through counterdie 40 two described in fixed via 43.Continue toward described counterdie 40 the second circular hole groove 42 in place described glass bead 601 one by one after, after described die cavity 30 is placed on the described indent platform 401 of described counterdie 40, described counterdie 40 and described indent platform 401 are taken out from described support platform.
Step 2, is placed on glass cover-plate to be processed on described die cavity 30, and adopts described positioner 50 to position, described positioner 50 can be as described in the projection of location-plate 501 or die cavity 30 upper surface as described in being arranged on.Now, the upper surface of the lower surface of described glass cover-plate to be processed and described die cavity 30, the lower surface of described glass cover-plate to be processed is slightly larger than described die cavity 30, and the lower surface edge place of described glass cover-plate to be processed extends to the first arc groove 44 place of described counterdie 40；After using latch or screw to be connected with described counterdie 40 by described counterdie 20 and fix, described glass cover-plate hot bending die is inserted in described glass cover-plate hot bending preparation system 90.
Step 3, described glass cover-plate hot bending die 10 is driven by the transporter 96 of described glass cover-plate hot bending preparation system 90, sequentially pass through described heating workshop section 91, described pressing section 91, described temperature adjust workshop section 93, described first cooling workshop section 94 and described second cooling workshop section 95 after, complete glass bending technological operation.
Process workshop section 91 described first to adjust in workshop section 93 with described temperature, all include being arranged on described in the described multiple hot plate of glass cover-plate hot bending die about 10, the variations in temperature of described heating rod and second embodiment of the invention, do not repeat them here.
In described pressing section 91, described glass cover-plate hot bending preparation system 90 applies pressure to described glass cover-plate hot bending die 10, so that described upper mould 20 moves down.Now, owing to described glass cover-plate hot bending die 10 adjusts workshop section 92 through described heating workshop section 91 with described temperature, described glass cover-plate hot bending die 10 be gradually heating to close to and lower than described glass cover-plate to be processed assigned temperature (for as described in the minimum softening temperature of glass cover-plate to be processed) and progressively soften, it is arranged on described in described die cavity 30 described glass bead 601 between counterdie 40 and uprises due to temperature, also progressively deliquescing.Owing to the described cambered surface limit 211 of described upper mould 20 matches with the described first cambered surface groove 44 of described counterdie 40, described glass cover-plate edge to be processed is subject to pressurizing and deformation, and matches with the intrados of described first cambered surface groove 44.While described cover-plate glass to be processed is pressurized, described glass bead 601 is owing to being subject to the downforce from described die cavity 30, and described glass bead 601 also progressively deforms, and is disperseed by the former stress being applied on described cover-plate glass to be processed.
Step 4, after completing above-mentioned steps 3, described glass cover-plate hot bending die 10 is taken out from described glass cover-plate hot bending preparation system 90, the latch of the described upper mould 20 of fixing described glass cover-plate hot bending die 10 and described counterdie 40 or screw are taken out, and described upper mould 20 is taken out, by described counterdie 40, described die cavity 30 is placed on described support platform, the cylinder of described support platform is by described die cavity 30 jack-up, the non-plane glass side edge thereof place of hot bending separates with the first arc groove 44 of described counterdie 40, so that the non-plane glass cover plate of described hot bending takes out.After completing the non-plane glass cover plate taking-up of described hot bending, after described die cavity 30 is taken out from described counterdie 40, being removed from the second circular hole groove 42 of described counterdie 40 by described glass bead 601 after compressive deformation further, the hot bending to complete a glass cover-plate operates.
In practical operation, described step 3 and described step 4 can continuously perform, described heating workshop section 91 and described temperature adjust the temperature remained constant of workshop section 92, described glass cover-plate hot bending preparation system 90 can insert 10 described glass cover-plate hot bending dies 10 simultaneously, it is ensured that glass bending Product Process quality stability and raising production efficiency.In above-mentioned steps 1, that inserts described glass bead 601 in described glass cover-plate hot bending die 10 specifically comprises the following steps that after placing described glass bead 601 one by one in six of described die cavity 40 described second circular hole grooves 42, described die cavity 30 is inserted in the indent platform 401 of described die cavity 40 together with described glass cover-plate to be processed, now, the lower surface camber of described glass bead 601 contacts with described second circular hole groove 42, the top-surface camber of described glass bead 601 contacts with described first circular hole groove 31, and the upper surface of the upper surface of described die cavity 30 and described die cavity 40 is substantially flush.
In above-mentioned steps 3, as adopted the first cambered surface groove 44, described glass cover-plate edge to be processed can be all on-plane surface by plane deformation, and such as the second cambered surface groove 44 ' as described in adopting, then the both sides of the edge of described glass cover-plate to be processed are on-plane surface by plane deformation.In some embodiments that the present invention is other, described first cambered surface groove 44 and described second cambered surface groove 44 ' can be also other shape, do not limit at this.
Further, as shown in FIG. 10A, described glass cover-plate 101a to be processed is placed between described upper mould 20 and described die cavity 30, and now, described glass cover-plate 101a to be processed is flat state, and now, described glass bead 601 is original state.
As shown in Figure 10 B, the lower surface of the boss 21 of described upper mould 20 and the upper surface of described die cavity 30 are planar structure, described glass cover-plate 101b to be processed deforms after being under pressure, the zone line of described glass cover-plate 101b to be processed is plane, the edge deformation of described glass cover-plate 101b to be processed is cambered surface, forms 2.5D glass cover-plate after described glass cover-plate 101b molding to be processed.
As shown in figure 10 c, the lower surface of the boss 21 of described upper mould 20 and the upper surface of described die cavity 30 are globoidal structure, described glass cover-plate 101c to be processed deforms after being under pressure, the zone line of described glass cover-plate 101c to be processed is the first cambered surface (non-label), the lower surface of the radian of described first cambered surface and described boss 21, the radian of the globoidal structure of the upper surface of described die cavity 30 all matches, the edge deformation of described glass cover-plate 101c to be processed is the second cambered surface (non-label), 3D glass cover-plate is formed after described glass cover-plate 101b molding to be processed.
Adopt the surface stress of the hot-bending formed glass cover plate that glass cover-plate hot bending die provided by the present invention 10 and described glass cover-plate hot bending preparation system 90 obtain after described glass cover-plate to be processed is carried out hot bending processing and quality of finished all owing to adopting cold working preparation method or existing hot bending technological method for processing.
Adopt the surface stress of the glass cover-plate of the glass surface stress ga(u)ge described hot bending of measurement in the present invention, to adopt described hot-bending formed glass cover plate that glass cover-plate hot bending die of the present invention 10 and described glass cover-plate hot bending preparation system 90 prepare for experimental group 1, the hot-bending formed glass cover plate prepared by the existing hot bending process of employing is matched group 1, the non-plane glass cover plate prepared by employing cold working mode is matched group 2, by to the tempering performance of above-mentioned three groups of non-plane glass cover plates (such as stress, impact strength) and outward appearance test, the properties adopting the hot-bending formed glass cover plate that glass cover-plate hot bending die of the present invention 10 and described glass cover-plate hot bending preparation system 90 prepare is superior to the performance of above-mentioned matched group 1 and matched group 2.
Third embodiment of the invention provides a kind of glass cover-plate hot bending preparation technology, it is provided that a glass cover-plate to be processed a, it is provided that counterdie, a die cavity and at least four glass bead, described glass cover-plate hot bending preparation technology at least comprises the steps:
Step 1, the upper surface at described counterdie puts glass bead described at least four；
Step 2, is placed on described glass bead by described die cavity, and described die cavity lower surface is parallel with the upper surface of described counterdie；
Step 3, puts described glass cover-plate to be processed at described die cavity upper surface；
Step 4, heats after-applied pressure, described glass cover-plate to be processed and the softening of described glass bead deformation after pressurized to described glass cover-plate to be processed.
Compared with prior art, glass cover-plate hot bending die 10 provided by the present invention has the advantage that with described glass cover-plate hot bending preparation system 90
1, glass cover-plate hot bending die 10 provided by the present invention, in described glass cover-plate hot bending preparation system 90 and described glass cover-plate hot bending preparation technology, by arranging at least four glass bead 601 under described glass cover-plate to be processed, and make described glass cover-plate to be processed and described glass bead 601 jointly by under the state of thermal softening, deform after pressurized, setting due to described glass bead 601, the former power effect (such as stress) being applied on described glass cover-plate to be processed can be made dispersed, thus the local reducing described glass cover-plate to be processed is subject to excessive pressure and the problem that inequality or stress are concentrated occurs.
2, the lower surface of die cavity 30 described in glass cover-plate hot bending die 10 provided by the present invention and described glass cover-plate hot bending preparation system 90 and the upper surface of described counterdie 40 are respectively arranged with described first circular groove 31 and described second circular groove 42 that quantity matches with position, the top-surface camber of described glass bead 601 contacts with described second circular groove 42 with described first circular groove 31 respectively with lower surface camber, now, described die cavity 30 does not contact with described counterdie 40 but has gap, being set to described glass bead and can have certain deformable squeeze space after temperature distortion of described gap, the free deformation of described glass bead 601 can be beneficial to.
3, described glass bead 601 diameter elects 6-12mm as, adopts the described glass bead 601 of above-mentioned diameter can obtain the deformation squeezing effect of optimum.
4, glass cover-plate hot bending die 10 provided by the present invention is oppositely arranged with the lower surface of boss 21 described in described glass cover-plate hot bending preparation system 90 and the upper surface of described die cavity 30, described boss 21 is suitable with described glass cover-plate size to be processed, thus under press time, preferably pressing effect can be obtained.
5, described cambered surface limit 211 and described arc groove 44 mate setting, thus the inner surface of described glass cover-plate to be processed and outer surface can be made can be subject to the effect of power simultaneously, make described glass cover-plate surfaces externally and internally dynamic balance to be processed and molding degree suitable, therefore, more excellent glass cover-plate hot bending effect can be obtained.
6, described glass cover-plate hot bending preparation system 90 provided by the present invention can farther include at least one heating workshop section (as heating workshop section 91 adjusts workshop section 93 with temperature), pressing section 92, cooling workshop section (as first cools down workshop section 94 and the second cooling workshop section 95) and a transporter, described glass cover-plate hot bending die 10 is driven and sequentially enters described heating workshop section, described pressing section 92 and described cooling workshop section by described transporter and is heated, presses and cooling down operation, thus realizing automation mechanized operation prepared by glass cover-plate hot bending.Compared with carrying out glass cover-plate hot bending preparation system with existing use single chamber, employing present invention can be implemented in glass cover-plate hot bending and prepares automatization, and the temperature prepared of glass cover-plate hot bending with by pressure adjustable and steady state value can be remained, without reaction cavity inside constantly being carried out heating and cooling operation, there is higher production efficiency and save energy consumption.
7, adopt non-plane glass cover plate that heretofore described glass cover-plate hot bending die 10 prepares with adopt cold working, existing hot bending technique preparation or non-plane glass cover plate compared with, there is more quality product matter and be not easily formed tiny crack, compared with prior art, described glass cover-plate hot bending die 10 provided by the present invention, described glass cover-plate hot bending preparation system 90 are strong and easy and simple to handle with the described glass cover-plate hot bending preparation technology suitability, and yields is high.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendments made within the principle of the present invention, equivalent replacement and improvement etc. all should comprise within protection scope of the present invention.
Claims (10)
1. a glass cover-plate hot bending die, glass cover-plate to be processed is provided, it is characterized in that: described glass cover-plate hot bending die includes a counterdie, a die cavity and at least four glass bead, described die cavity is arranged within described counterdie, four described glass beads uniformly divide between described die cavity and described counterdie, described glass cover-plate to be processed is located on described die cavity, when described glass cover-plate hot bending die being heated to close and lower than described glass cover-plate to be processed minimum softening temperature, described glass cover-plate to be processed and the softening of described glass bead deformation after pressurized.
2. glass cover-plate hot bending die as described in the appended claim 1, it is characterized in that: the upper surface of the lower surface of described die cavity and described counterdie is oppositely arranged, the lower surface of described die cavity includes at least four the first circular groove, the upper surface of described counterdie includes at least four the second circular groove, and described first circular groove and described second circular groove match setting.
3. glass cover-plate hot bending die as stated in claim 2, it is characterized in that: when the top-surface camber of described glass bead contacts with described first circular groove and the lower surface camber of described glass bead contacts with described second circular groove, between lower surface and the upper surface of described counterdie of described die cavity, there is gap.
4. glass cover-plate hot bending die as claimed in claim 3, it is characterised in that: the height sum of the height of described first circular groove and described second circular groove is less than the diameter of described glass bead, and the diameter of described glass bead is 6-12mm.
5. glass cover-plate hot bending die as described in the appended claim 1, it is characterized in that: described glass cover-plate hot bending die farther includes mould on, described upper mould includes a boss, the upper surface of the lower surface of described boss and described die cavity is oppositely arranged, and described boss is suitable with described glass cover-plate size to be processed.
6. glass cover-plate hot bending die as described in the appended claim 1, it is characterised in that: the upper surface of the lower surface of described boss and described die cavity is plane or cambered surface.
7. glass cover-plate hot bending die as recited in claim 6, it is characterized in that: described boss includes four cambered surface limits, described counterdie includes an indent platform, the inside upper part of described indent platform includes at least one arc groove, setting is mated on described cambered surface limit with described arc groove, and described glass cover-plate edge to be processed contacts with described arc groove.
8. glass cover-plate hot bending die as recited in claim 7, it is characterised in that: described arc groove is shaped as rectangle frame, C type frame；Or described arc groove is for be arrangeding in parallel and opposite sides.
9. a glass cover-plate hot bending preparation system, it is characterized in that: described glass cover-plate hot bending preparation system includes glass cover-plate hot bending die as described in any one of claim 1-8, described glass cover-plate hot bending preparation system farther includes at least one heating workshop section, a pressing section, cooling workshop section and a transporter, and described glass cover-plate hot bending die is driven and sequentially enters described heating workshop section, described pressing section and described cooling workshop section by described transporter and is heated, presses and cooling down operation.
10. a glass cover-plate hot bending preparation technology a, it is provided that glass cover-plate to be processed, it is characterised in that: providing a counterdie, a die cavity and at least four glass bead, described glass cover-plate hot bending preparation technology at least comprises the steps:
Step 1, the upper surface at described counterdie puts glass bead described at least four；
Step 2, is placed on described glass bead by described die cavity, and described die cavity lower surface is parallel with the upper surface of described counterdie；
Step 3, puts described glass cover-plate to be processed at described die cavity upper surface；And
Step 4, heats after-applied pressure, described glass cover-plate to be processed and the softening of described glass bead deformation after pressurized to described glass cover-plate to be processed.
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| CN108069583B (en) * | 2016-11-11 | 2019-12-27 | 比亚迪股份有限公司 | Curved glass hot bending die, curved glass and preparation method thereof |
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| CN108218200B (en) * | 2016-12-21 | 2023-09-22 | 蓝思科技（长沙）有限公司 | Unilateral hot bending forming die of hot bending product |
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| CN107879606A (en) * | 2017-12-07 | 2018-04-06 | 苏州赛万玉山智能科技有限公司 | High-temperature mold is transported automatically and handling equipment, 3D cover-plate glass highly-efficient processing systems and its processing method |
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| CN108117251A (en) * | 2018-01-03 | 2018-06-05 | 瑞声精密制造科技(常州)有限公司 | A kind of glass processing die and glass processing method |
| CN109650704A (en) * | 2019-03-01 | 2019-04-19 | 深圳盛为精工科技有限公司 | A kind of 3D hot bending right angle four sides contour glass and its production technology |
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| CN110372181B (en) * | 2019-07-09 | 2022-01-14 | Oppo（重庆）智能科技有限公司 | Glass cover plate and preparation method thereof, display screen assembly and electronic equipment |
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Inventor after: Lu Zhengwang Inventor after: Huang Hongwu Inventor after: Zeng Maobo Inventor after: Liu Jiang Inventor before: Huang Hongwu Inventor before: Zeng Maobo Inventor before: Liu Jiang Inventor before: Lu Zhengwang |