CN109111091A

CN109111091A - Graphite mold, 3D glass hot bending device and 3D glass hot bending method

Info

Publication number: CN109111091A
Application number: CN201811155443.2A
Authority: CN
Inventors: 米军哲
Original assignee: Tunghsu Group Co Ltd; Tunghsu Technology Group Co Ltd
Current assignee: Dongxu Optoelectronic Technology Co Ltd
Priority date: 2018-09-30
Filing date: 2018-09-30
Publication date: 2019-01-01
Anticipated expiration: 2038-09-30
Also published as: CN109111091B

Abstract

The invention discloses a graphite mold for 3D glass forming, a 3D glass hot bending device with the graphite mold and a 3D glass hot bending method implemented by using the 3D glass hot bending device. The curved device of 3D glass heat includes: the upper heating plate and the lower heating plate are arranged in the same plane, and the lower heating plate is provided with an air exhaust channel; the graphite mold has a porosity of more than or equal to 12 percent, is arranged on the upper surface of the lower heating plate and is positioned below the upper heating plate; and the air exhaust port of the vacuum generator is communicated with the air exhaust channel. The 3D glass hot bending device provided by the embodiment of the invention has the advantages of long service life, high processing quality, low energy consumption and the like.

Description

Graphite jig, 3D glass bending device and 3D glass bending method

Technical field

The present invention relates to glass processing fields, and in particular, to is used for the molding graphite jig of 3D glass, further relates to have The 3D glass bending device of the graphite jig and the 3D glass bending method implemented using the 3D glass bending device.

Background technique

In the related art, 3D glass bending mainly uses concave-convex mold hot-press method, glass two tables in forming process Face is squeezed by upper/lower die strength.Therefore, if the surface roughness of upper/lower die is higher, mold particle is larger or mold table When face occurs bad, it is easy this bad the defects of being transferred to glass surface, forming point, hot orange peel.

Summary of the invention

It is of the existing technology the purpose of the invention is to overcome the problems, such as, it provides for the molding graphite jig of 3D glass And the glass bending side 3D of the 3D glass bending device and utilization 3D glass bending device implementation with the graphite jig Method.

To achieve the goals above, first aspect present invention provides a kind of for the molding graphite jig of 3D glass, described The porosity of graphite jig is more than or equal to 12%.

Preferably, the porosity of the graphite jig is less than or equal to 40%, it is preferable that the porosity of the graphite jig is big In be equal to 15% and be less than or equal to 30%, it is further preferred that the porosity of the graphite jig be more than or equal to 18% and be less than etc. In 25%, most preferably, the porosity of the graphite jig is 23%.

Second aspect of the present invention provides 3D glass bending device, and the 3D glass bending device includes: upper heating plate under Heating plate, the lower heating plate are equipped with bleed-off passage, and the upper port of the bleed-off passage is provided with the upper of the lower heating plate On surface；Graphite jig, the graphite jig are the graphite jig according to first aspect present invention, and the graphite jig is set On the upper surface of the lower heating plate, the graphite jig is located at the lower section of the upper heating plate；And vacuum generator, it is described The bleeding point of vacuum generator is connected to the bleed-off passage.

It is excellent that 3D glass bending device according to an embodiment of the present invention has that long service life, processing quality are high, low energy consumption Point.

Preferably, the upper surface of the lower heating plate is equipped with groove, and the upper port of the bleed-off passage is provided with described On the wall surface of groove, it is preferable that the lower port of the bleed-off passage is provided on the lower surface of the lower heating plate.

Preferably, the shape adaptation of the upper surface of the shape of the lower surface of the graphite jig and the lower heating plate.

Preferably, the bleed-off passage is multiple, and multiple bleed-off passages constitute multiple bleed-off passage groups, each described Bleed-off passage group includes multiple bleed-off passages, and the plurality of bleed-off passage group is along the transverse direction of the lower heating plate and vertical To one of be arranged at interval, the cross of multiple bleed-off passages of each bleed-off passage group along the lower heating plate It is arranged at interval to the other of longitudinal.

Preferably, the 3D glass bending device further comprises: inert gas source；And switching valve, the switching valve tool There are the first opening, the second opening and third opening, first opening is switchably opened with second opening and the third The connection of one of mouth, wherein first opening is connected to the bleed-off passage, second opening and vacuum generation The bleeding point of device is connected to, and the third opening is connected to the inert gas source.

Third aspect present invention provides the 3D implemented using the 3D glass bending device described according to a second aspect of the present invention Glass bending method, the 3D glass bending method the following steps are included:

A) glass plate is placed on the upper surface of graphite jig of the 3D glass bending device；

B glass plate described in the upper heating plate of the 3D glass bending device and lower heater plate, the glass plate) are utilized Heated hot bending is simultaneously fitted on the upper surface of the graphite jig, to form 3D glassware；With

C) implementing the step B) before, after or at the same time, inert gas is provided, and open the 3D glass bending dress The vacuum generator set is to vacuumize.

3D glass bending method according to an embodiment of the present invention has and prevents that graphite jig oxidation, processing quality be high, energy consumption Low advantage.

Preferably, the glass plate is heated to the first preset temperature using the upper heating plate and the lower heating plate, First preset temperature is less than the softening point temperature of the glass plate and is greater than the deformation point temperature of the glass plate, preferably The difference of ground, the softening point temperature and first preset temperature is less than or equal to preset value.

Preferably, the 3D glass bending method further comprises: D) continuing to be passed through inert gas, reduces the 3D glass The temperature of product after below the strain point temperature that the temperature of the 3D glassware is down to the 3D glassware, closes institute Vacuum generator is stated,

Preferably, the 3D glass bending method further comprises: E) utilizing the indifferent gas of the 3D glass bending device Body source provides inert gas to the graphite jig by the bleed-off passage of the lower heating plate, then from the graphite jig Take the 3D glassware away.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of 3D glass heat bender according to an embodiment of the present invention；

Fig. 2 is the structural schematic diagram of 3D glass heat bender according to an embodiment of the present invention；

Fig. 3 is the structural representation of the first cooling piece (the second cooling piece) of 3D glass heat bender according to an embodiment of the present invention Figure；

Fig. 4 is the structural schematic diagram of 3D glass bending device according to an embodiment of the invention (before heating)；

Fig. 5 is the structural schematic diagram of 3D glass bending device according to an embodiment of the invention (after heating)；

Fig. 6 is the partial structural diagram of 3D glass bending device according to an embodiment of the invention；

Fig. 7 is the structural schematic diagram of 3D glass bending device according to another embodiment of the invention (before heating)；

Fig. 8 is the structural schematic diagram of 3D glass bending device according to another embodiment of the invention (after heating)；

Fig. 9 is the partial structural diagram of 3D glass bending device according to an embodiment of the present invention；

Figure 10 is the partial structural diagram of 3D glass bending device according to an embodiment of the present invention；

Figure 11 is the partial structural diagram of 3D glass bending device according to an embodiment of the present invention；

Figure 12 is the structural schematic diagram of heating tube according to an embodiment of the invention；

Figure 13 is the structural schematic diagram of heating tube according to another embodiment of the invention；

Figure 14 is the structural schematic diagram of the connecting plate of 3D glass bending device according to an embodiment of the present invention.

Specific embodiment

The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to The embodiment of attached drawing description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.

Below with reference to the accompanying drawings 3D glass bending device 40 according to an embodiment of the present invention is described.As shown in figs. 10-11, root 3D glass bending device 40 according to the embodiment of the present invention includes upper heating plate, lower heating plate 421, graphite jig 430 and vacuum hair Raw device (not shown).

Lower heating plate 421 is equipped with bleed-off passage 4211, and the upper port of bleed-off passage 4211 is provided with lower heating plate 421 On upper surface 4212, the bleeding point of the vacuum generator is connected to bleed-off passage 4211.The porosity of graphite jig 430 be greater than etc. In 12%, graphite jig 430 is located on the upper surface 4212 of lower heating plate 421.

Glass plate 2 is being heated before, after or at the same time using 3D glass bending device 40, and inert gas can be provided, and The vacuum generator is opened to vacuumize.Since the bleeding point of the vacuum generator passes through bleed-off passage 4211 and graphite jig 430 stomata connection, therefore after opening the vacuum generator, inert gas enters in the stomata of graphite jig 430.At this point, The predetermined fraction (to hot bending part) of glass plate 2 (is acted on the upper of glass plate 2 by the pressure of its own gravity, inert gas On surface) and negative pressure (acting on the lower surface of glass plate 2).

When more than the deformation point temperature that the temperature of the predetermined fraction of glass plate 2 rises to glass plate 2, glass plate 2 The predetermined fraction its own gravity, inert gas pressure and the negative pressure under the action of, rapidly deform (to moving down It is dynamic), until being fitted on the upper surface of graphite jig 430, (entire glass plate 2 is all fitted in the upper table of graphite jig 430 at this time On face), to form 3D glassware 3.

The existing mold for 3D glass can be metal die, graphite jig.Due to existing hot-bending method be by Glass plate is heated to deformation point temperature, then squeezes glass plate (molding) using upper mold and lower mold, so as to glass plate deforms, And then 3D glassware is formed, therefore upper mold and lower mold need to bear biggish active force, this requires upper molds under Mold structural strength with higher.Thus when upper mold and lower mold are graphite jig, the porosity of graphite jig is basic Equal to zero, to guarantee graphite jig structural strength with higher.

And in this application, since glass plate 2 to be heated to the deformation point temperature of glass plate 2 or more (such as close to glass The softening point temperature of plate 2) and make glass plate 2 by the effect of the pressure of inert gas and the negative pressure, it is upper there is no need to utilize Mold and lower mold squeeze glass plate 2.That is, only setting the graphite jig 430 below glass plate 2, and stone can be located at The active force that black mold 430 is subject to is very small, therefore the porosity of graphite jig 430 can be more than or equal to 12%.

Moreover, because upper mold and lower mold is not recycled to squeeze glass plate 2, the predetermined fraction of glass plate 2 its from Body gravity, inert gas pressure and the negative pressure under the action of hot bending deform, therefore can greatly reduce glass plate 2 by Pressure, thus the surface defect of graphite jig 430 does not transfer on the surface of glass plate 2 and 3D glassware 3, so as to To greatly improve the surface quality of 3D glassware 3.

Further, since no setting is required upper mold, to not only can simplify 3D glass bending device 40 and 3D glass bending The structure of machine 1, and heating module 410 can be made directly to heat to glass plate 2, so as to so that heat more effectively It is transmitted on glass plate 2.It is possible thereby to reduce the energy consumption of heating module 410 and 3D glass bending device 40, i.e., upper heated mould Group 410 and 3D glass bending device 40 has the advantages that low energy consumption.

3D glass bending device 40 according to an embodiment of the present invention is by being arranged bleed-off passage in lower heating plate 421 4211 and graphite jig 430 is arranged on the upper surface 4212 of lower heating plate 421, thus can not only make inert gas into Enter into graphite jig 430 to prevent graphite jig 430 from aoxidizing, and can greatly reduce the pressure that glass plate 2 is subject to, To avoid the surface defect by graphite jig 430 from being transferred on the surface of glass plate 2 and 3D glassware 3, so as to pole The earth improves the surface quality of 3D glassware 3.

Therefore, 3D glass bending device 40 according to an embodiment of the present invention has long service life, processing quality height, energy consumption Low advantage.

As shown in Fig. 1-Figure 14, in some embodiments of the invention, 3D glass heat bender 1 may include furnace body 10, One partition 121, second partition 122, preheating device 20, annealing device 30 and 3D glass bending device 40.

It can have accommodating chamber 110 in furnace body 10, first partition 121 and second partition 122 can be located at appearance at interval It receives in chamber 110 and accommodating chamber 110 is divided into preheating cavity 111, hot bending chamber 112 and anneal chamber 113.

As depicted in figs. 1 and 2, each of first partition 121 and second partition 122 can be set up or down It sets.3D glass heat bender 1 may further include first partition actuator 131 and second partition actuator 132, and first partition is driven Moving part 131 can be connected to drive first partition 121 to move along the vertical direction with first partition 121, second partition actuator 132 can be connected to drive second partition 122 to move along the vertical direction with second partition 122.

When carrying out warm-up operation, hot bending operation and annealing operation, first partition actuator 131 can drive first partition 121 move down, second partition actuator 132 can drive second partition 122 to move down, so as to by preheating cavity 111 and heat Curved chamber 112 keeps apart (isolation), hot bending chamber 112 and anneal chamber 113 and keeps apart (isolation).

After warm-up operation, first partition actuator 131 can drive first partition 121 to move up, to incite somebody to action Glass plate 2 is moved to hot bending chamber 112 from preheating cavity 111；After hot bending operation, second partition actuator 132 can be driven Second partition 122 moves up, so that 3D glassware 3 is moved to anneal chamber 113 from hot bending chamber 112.

Preferably, first partition 121 can be vertically arranged, and second partition 122 can also be vertically arranged.

As depicted in figs. 1 and 2, preheating device 20 can be located in preheating cavity 111, and annealing device 30 can be located at anneal chamber In 113.

Preferably, preheating cavity 111 can be multiple, and preheating device 20 can be multiple, and multiple preheating devices 20 can be with one One is accordingly located in multiple preheating cavities 111.Anneal chamber 113 can be multiple, and annealing device 30 can be multiple, multiple annealing Device 30 can be located at correspondingly in multiple anneal chambers 113.Correspondingly, first partition 121 can be multiple to be formed Multiple preheating cavities 111, second partition 122 can be multiple to form multiple anneal chambers 113.

In other words, the quantity of preheating cavity 111 can be equal to the quantity of preheating device 20, and the quantity of anneal chamber 113 can wait In the quantity of annealing device 30, a preheating device 20 can be located in a preheating cavity 111, and an annealing device 30 can be set In an anneal chamber 113.

As depicted in figs. 1 and 2, in one embodiment of the invention, preheating device 20 may include preheating bracket 210, Lower preheating table 220, upper preheating table 230, upper pre- warmware 240 and lower pre- warmware 250, when being preheated to glass plate 2, glass plate 2 can be placed on preheating bracket 210.

Lower preheating table 220 can be located at the lower section of the upper end of preheating bracket 210, and upper preheating table 230 can be located at preheating branch The top of the upper end of frame 210.Upper pre- warmware 240 can be located on preheating table 230 or be located in preheating table 230, lower pre- Warmware 250 can be located on lower preheating table 220 or be located in lower preheating table 220.Wherein, the arrow A of up and down direction as shown in figure 1 It is shown.

In the prior art, glass plate is clamped between upper mold and lower mold, by heating of top mold and lower mold, It transfers heat on glass plate and realizes the preheating of glass plate.

Since glass plate 2 is placed on preheating bracket 210, directly glass plate 2 can be heated, so as to So that heat is more effectively transferred on glass plate 2.Therefore, with by heating of top mold and lower mold come pre-heat glass sheets phase Than by the way that using preheating device 20, come pre-heat glass sheets 2, energy consumption can be reduced, i.e. preheating device 20 has the advantages that low energy consumption. It the reason of about the application without using upper mold and lower mold clamping glass plate 2, will describe in greater detail below.

As depicted in figs. 1 and 2, preheating bracket 210 may include multiple preheating support columns 211, multiple preheating support columns 211 It can be arranged at interval.The upper edge or upper surface of multiple preheating support columns 211 can be located in same level.

Upper preheating table 230 can be arranged up or down, such as can be by preheating table 230 in the drivings such as cylinder, electric cylinders Lower movement.When taking glass plate 2 away on glass plate 2 to be placed into preheating bracket 210 or from preheating bracket 210, can make Upper preheating table 230 moves up, so as to glass plate 2 easy to carry.In pre-heat glass sheets 2, preheating table 230 can be made downward It is mobile, to heat glass plate 2.

Upper pre- warmware 240 and lower pre- warmware 250 can be heating tubes 60.As shown in Figure 12 and Figure 13, heating tube 60 can To include tube body 610, multiple heating parts 620, the first lead division 631 and the second lead division 632.First lead division 631 can be with An electrical connection in multiple heating parts 620, the second lead division 632 can be electrically connected with another in multiple heating parts 620.

Tube body 610 can have lumen 611, and multiple heating parts 620 can be located in lumen 611, and multiple heating parts 620 can With series connection.Wherein, at least two resistance in multiple heating parts 620 can be in unequal each other and/or multiple heating parts 620 At least two size density can be unequal each other, in multiple heating parts 620 this at least two tube body 610 length Spending can be opposite with the different piece of tube body 610 on direction.

Wherein, the size density of a heating part 620 refers to: the length of the heating part 620 adds with tube body 610 with this The ratio of the length of the opposite part in hot portion 620.If heating part 620 is non-linear shape (such as corrugated, helical form), heating The length in portion 620 refers to: after heating part 620 is straightened, the physical length of heating part 620.

When using hot-bending method manufacture 3D glassware, heat needed for the different piece of glass plate is also different.Specifically Ground needs curved part to need to absorb more heats, and not needing curved part can be absorbed less heat.It is existing Heating tube can only equably distribute heat, i.e., the heat that the different piece of existing heating tube distributes is of substantially equal, this is resulted in The part for not needing hot bending of glass plate is also heated to maximum temperature (not needing actually to be heated to maximum temperature), therefore There are thermal energy wastes.

Heating tube 60 according to an embodiment of the present invention is by making at least two resistance in multiple heating parts 620 each other At least two size density in unequal and/or multiple heating parts 620 is unequal each other, so as to so that this at least two The heat that a heating part 620 generates is unequal each other.

Due in multiple heating parts 620 this at least two on the length direction of tube body 610 portions different from tube body 610 Split-phase pair, therefore the heat that the different piece of heating tube 60 can be made to distribute is unequal each other.Specifically, heating tube 60 can be made Distribute that the more part of heat is opposite with the part for needing hot bending of glass plate 2, make heating tube 60 to distribute heat less Part is opposite with the part for not needing hot bending of glass plate 2, to reduce the energy consumption of heating tube 60.

Therefore, heating tube 60 according to an embodiment of the present invention has low power consumption and other advantages.Compared with existing heating tube, root The energy consumption of 5%-10% can be reduced according to the heating tube 60 of the embodiment of the present invention.

Heating tube 60 according to an embodiment of the present invention is not limited to for preheating bracket 210.According to the practical heat of glass plate 2 Heating tube 60 can be designed as two warm areas, three-temperature-zone or more than four warm areas by bending shape.It can be according to the specific shape of mold Shape, the insulating power that radiates to it calculate, the hot bending portion of the heat dissipation with the mold faster part and glass plate 2 of heating tube 60 The region of split-phase pair can be used as high-temperature region, and the region opposite with the preferable part of the thermal insulation property of mold of heating tube 60 can Using as low-temperature space.

In an example of the invention, multiple heating parts 620 may include main heating part and side heating part, the main heating The end in portion can be electrically connected with the end of the side heating part, and the resistance of the resistance of the side heating part and the main heating part can not Equal and/or the side heating part size density and the size density of the main heating part can be unequal.

Thus heating tube 60 can have two warm areas (high-temperature region and a low-temperature space).Wherein, heating tube 60 High-temperature region (such as part opposite with the side heating part) can be opposite with the part for needing hot bending of glass plate 2, heating tube 60 Low-temperature space (such as part opposite with the main heating part) can be opposite with the part for not needing hot bending of glass plate 2.This shows The heating tube 60 of example is suitable for heating the glass plate 2 with a hot bending part.

As shown in Figure 12 and Figure 13, multiple heating parts 620 may include the first side heating part 621, second side heating part 622 It can be electrically connected with the end of the first side heating part 621 with the first end of intermediate heating part 623, intermediate heating part 623, centre adds The second end in hot portion 623 can be electrically connected with the end of second side heating part 622.

Wherein, the resistance of the first side heating part 621 and the resistance of intermediate heating part 623 can unequal and/or the first sides The size density of heating part 621 and the size density of intermediate heating part 623 can be unequal, the resistance of second side heating part 622 Resistance with intermediate heating part 623 can unequal and/or second side heating part 622 size density and intermediate heating part 623 Size density can be unequal.

Thus heating tube 60 can have three warm areas (such as two high-temperature regions and a low-temperature space).Wherein, heating tube 60 two high-temperature regions (such as part opposite with the first side heating part 621 and second side heating part 622) can be with glass plate 2 The part for needing hot bending it is opposite, the low-temperature space (such as part opposite with intermediate heating part 623) of heating tube 60 can be with glass The part for not needing hot bending of glass plate 2 is opposite.

In other words, the first side heating part 621 and second side heating part 622 can be with the parts for needing hot bending of glass plate 2 Relatively, intermediate heating part 623 can be opposite with the part for not needing hot bending of glass plate 2.The exemplary heating tube 60 is suitable for adding There are two the glass plates 2 of hot bending part for heat tool, such as two ends of glass plate 2 are its hot bending part.

Preferably, the resistance of the first side heating part 621 can be equal to resistance and/or the first side of second side heating part 622 The size density of heating part 621 can be equal to the size density of second side heating part 622.It is possible thereby to make two of glass plate 2 The heat that end absorbs is generally equalized, so as to so that the structure of heating tube 60 is more reasonable.

As shown in figure 13, multiple heating parts 620 constitute multiple heating part groups 624, and multiple heating part groups 624 can be along first Direction is arranged at interval, which can be perpendicular to the length direction of tube body 610.In the first direction adjacent two A heating part group 624 can connect.Wherein, as shown by arrow b in fig. 13, the first direction is such as the length direction of tube body 610 Shown in arrow C in Figure 13.

Each heating part group 624 may include the first side heating part 621, second side heating part 622 and intermediate heating part 623, the first end of intermediate heating part 623 can be electrically connected with the end of the first side heating part 621, and the of intermediate heating part 623 Two ends can be electrically connected with the end of second side heating part 622.Wherein, the resistance of the first side heating part 621 and intermediate heating part 623 resistance can the size density of unequal and/or the first side heating part 621 size density and intermediate heating part 623 can With unequal, the resistance of the resistance of second side heating part 622 and intermediate heating part 623 can the heating of unequal and/or second side The size density in portion 622 and the size density of intermediate heating part 623 can be unequal.

It is possible thereby to further increase the part and tube body 610 opposite with the first side heating part 621 of tube body 610 in Between the opposite part in heating part 623 the temperature difference, further increase tube body 610 the part opposite with second side heating part 622 and The temperature difference of the part opposite with intermediate heating part 623 of tube body 610, so as to further decrease the energy consumption of heating tube 60.

The resistance of first side heating part 621 of multiple heating part groups 624 can be equal to each other and/or multiple heating part groups The size density of 624 the first side heating part 621 can be equal to each other, second side heating part 622 of multiple heating part groups 624 Resistance can be equal to each other and/or the size density of second side heating part 622 of multiple heating part groups 624 can be equal to each other. It is possible thereby to keep the structure of heating tube 60 more reasonable.

As shown in Figure 12 and Figure 13, in a specific example of the invention, each heating part 620 can be configured to spiral Shape, at least one of at least two screw pitch and diameter in multiple heating parts 620 can be unequal each other.It is possible thereby to Keep the structure of heating tube 60 more reasonable.

As depicted in figs. 1 and 2, annealing device 30 may include annealing frame 310, lower annealed sheet 320, upper annealed sheet 330, Upper annealing part 340, lower annealing part 350 and the first cooling piece 360, when annealing to glass plate 2, glass plate 2 can be put It sets on annealing frame 310.First cooling piece 360 can be arranged up or down between disengaging configuration and cooling position, be located at First cooling piece 360 of the disengaging configuration can be spaced apart with upper annealed sheet 330, the first cooling piece positioned at the cooling position 360 can contact with upper annealed sheet 330.For example, the first cooling piece 360 can be driven to move up and down by cylinder, electric cylinders etc..

Lower annealed sheet 320 can be located at the lower section of the upper end of annealing frame 310, and upper annealed sheet 330 can be located at annealing branch The top of the upper end of frame 310.Upper annealing part 340 can be located on annealed sheet 330 or be located in annealed sheet 330, under move back Fiery part 350 can be located on lower annealed sheet 320 or be located in lower annealed sheet 320.Upper annealing part 340 and lower annealing part 350 are all It can be heating tube 60 according to the above embodiment of the present invention.

Since 3D glassware 3 is placed on annealing frame 310, directly 3D glassware 3 can be added Heat, so as to so that heat is more effectively transferred on 3D glassware 3.Therefore, with by heating of top mold and lower mold come The technical solution annealed to 3D glassware is compared, by being annealed using annealing device 30 to 3D glassware 3, Energy consumption can be reduced, i.e. annealing device 30 has the advantages that low energy consumption.

As depicted in figs. 1 and 2, annealing frame 310 may include multiple annealing support columns 311, multiple annealing support columns 311 It can be arranged at interval.

Upper annealed sheet 330 can be arranged up or down, such as can pass through annealed sheet in the drivings such as cylinder, electric cylinders 330 move up and down.3D glassware 3 is being placed on annealing frame 310 to or is being taken away from annealing frame 310 3D glass system When product 3, annealed sheet 330 can be made to move up, so as to 3D glassware 3 easy to carry.It is moved back to 3D glassware 3 When fiery, annealed sheet 330 can be made to move down, to heat 3D glassware 3.

First cooling piece 360 can be used for controllably reducing furnace temperature.As shown in figure 3, the first cooling piece 360 may include Water coolers 361, the flow detector 362 for controlling inflow and the temperature detector for measuring return water temperature.It is cooling Water packet 361 can be arranged up or down between the disengaging configuration and the cooling position, positioned at the water coolers of the disengaging configuration 361 can be spaced apart with upper annealed sheet 330, and the water coolers 361 positioned at the cooling position can be contacted with upper annealed sheet 330. For example, water coolers 361 can be driven to move up and down by cylinder 363, electric cylinders etc..

As shown in Figure 1, Figure 2, shown in Fig. 4-Figure 11, in some examples of the invention, at least the one of 3D glass bending device 40 Part can be located in hot bending chamber 112,3D glass bending device 40 may include upper heating module 410, lower heating module 420, Graphite jig 430 and vacuum generator (not shown).

Upper heating module 410 may include the first heating plate 411, the second heating plate 412, the first heating member 413 and second Heating member 414, the first heating member 413 can be located in the first heating plate 411 or are located in the first heating plate 411, and second adds Warmware 414 can be located in the second heating plate 412 or be located in the second heating plate 412.Wherein, the first heating member 413 can on Under be movably arranged.

Lower heating module 420 may include lower heating plate 421 and lower heating member 422, can be equipped with and take out in lower heating plate 421 Gas channel 4211, the upper port of bleed-off passage 4211 can be provided on the upper surface 4212 of lower heating plate 421, lower heating member 422 can be located in lower heating plate 421 or be located in lower heating plate 421.The bleeding point of the vacuum generator can be with pumping Channel 4211 is connected to.Graphite jig 430 can be located on the upper surface 4212 of lower heating plate 421, and graphite jig 430 can be located at The porosity of the lower section of upper heating module 410, graphite jig 430 can be more than or equal to 12%.

Below with reference to the work for describing 3D glass heat bender 1 according to an embodiment of the present invention shown in Fig. 1, Fig. 2 and Fig. 4-Figure 11 Make process.

Firstly, glass plate 2 is transported in preheating cavity 111, glass plate 2 is preheated using preheating device 20.Specifically For, glass plate 2 is placed on preheating bracket 210, then using upper pre- warmware 240 and lower pre- warmware 250 to glass plate 2 into Row heating.Wherein, preheating temperature can determine that this has no essential distinction with the prior art, therefore not according to the ingredient of glass plate 2 It describes in detail again.

After preheating, glass plate 2 is transported in hot bending chamber 112, heats glass plate using 3D glass bending device 40 2.Specifically, glass plate 2 can be placed on graphite jig 430, upper heating module 410 and lower heating module 420 are utilized Graphite jig 430 is heated.Wherein, the predetermined fraction (to hot bending part) of glass plate 2 can be with 413 phase of the first heating member It is right, such as the predetermined fraction of glass plate 2 can be opposite with the first heating member 413 in the up-down direction, to add using first The predetermined fraction of the heating glass plate 2 of warmware 413.

Glass plate 2 is being heated before, after or at the same time using 3D glass bending device 40, can mentioned into hot bending chamber 112 For inert gas, and the vacuum generator is opened to vacuumize.Since the bleeding point of the vacuum generator passes through bleed-off passage 4211 are connected to the stomata of graphite jig 430, therefore after opening the vacuum generator, inert gas enters graphite jig 430 Stomata in.At this point, the predetermined fraction of glass plate 2 (is acted on glass plate 2 by the pressure of its own gravity, inert gas Upper surface on) and negative pressure (acting on the lower surface of glass plate 2).

The existing mold for 3D glass can be metal die, graphite jig.Due to existing hot-bending method be by Glass plate is heated to deformation point temperature, then squeezes glass plate (molding) using upper mold and lower mold, so as to glass plate deforms, And then 3D glassware is formed, therefore upper mold and lower mold need to bear biggish active force, this requires upper molds under Mold structural strength with higher.Thus when upper mold and lower mold are graphite jig, the porosity of graphite jig is less than Equal to 3%, to guarantee graphite jig structural strength with higher.More importantly in order to improve the knot of graphite jig Structure intensity, generally pursuing for those skilled in the art is the porosity for further decreasing graphite jig.

Preferably, the porosity of graphite jig 430 can be less than or equal to 40%.It is further preferred that the gas of graphite jig 430 Porosity is more than or equal to 15% and is less than or equal to 30%.It is further preferred that the porosity of graphite jig 430 be more than or equal to 18% and Less than or equal to 25%.Most preferably, the porosity of graphite jig 430 can be 23%.Thus it not only may insure graphite jig 430 have enough structural strengths, and glass plate 2 can be made to be adsorbed on graphite jig 430 strongerly.

Moreover, because upper mold and lower mold is not recycled to squeeze glass plate 2, the predetermined fraction of glass plate 2 its from Body gravity, inert gas pressure and the negative pressure under the action of hot bending deform, therefore can greatly reduce glass plate 2 by Pressure, thus the surface defect (such as surface roughness is higher, mold particle is larger etc.) of graphite jig 430 does not transfer to On the surface of glass plate 2 and 3D glassware 3, so as to greatly improve the surface quality of 3D glassware 3.

Therefore, 3D glass bending device 40 according to an embodiment of the present invention has long service life, processing quality height etc. excellent Point.

Preferably, it can be provided into hot bending chamber 112 lazy before heating glass plate 2 using 3D glass bending device 40 Property gas and the vacuum generator is opened to vacuumize, under the action of negative pressure, inert gas is fully drawn into graphite mo(u)ld The inside of tool 430.In other words, before graphite jig 430 is not heated, inert gas is fully drawn into graphite mo(u)ld The inside of tool 430.It is possible thereby to which graphite jig 430 is more efficiently avoided to be oxidized, graphite jig 430 is more efficiently avoided Profile variation, strength reduction, reduced service life due to oxidation.

Preferably, it can use 3D glass bending device 40 and glass plate 2 be heated to the first preset temperature, this is first default Temperature can be less than the softening point temperature of glass plate 2 and can be greater than the deformation point temperature of glass plate 2.

It is further preferred that the difference of the softening point temperature and first preset temperature can be in the first preset range, this One preset temperature and the deformation point temperature difference can be in the second preset ranges.Thus the heat of glass plate 2 not only can be improved Roll forming quality, the hot bending shape speed for accelerating glass plate 2, and the hot bending shape energy consumption of glass plate 2 can be reduced.

It is further preferred that the difference of the softening point temperature and first preset temperature can be more than or equal to 50 degrees Celsius and small In being equal to 100 degrees Celsius, first preset temperature and the deformation point temperature difference can be more than or equal to 20 degrees Celsius and be less than etc. In 70 degrees Celsius.Thus it not only can be further improved the hot bending shape quality of glass plate 2, further speed up the heat of glass plate 2 Roll forming speed, and the hot bending shape energy consumption of glass plate 2 can be further decreased.

Most preferably, the difference of the softening point temperature and first preset temperature can be more than or equal to 60 degrees Celsius and be less than etc. In 80 degrees Celsius, which can be more than or equal to 40 degrees Celsius and be less than or equal to 60 with the deformation point temperature difference is taken the photograph Family name's degree.Thus it not only can be further improved the hot bending shape quality of glass plate 2, further speed up the hot bending shape of glass plate 2 Speed, and the hot bending shape energy consumption of glass plate 2 can be further decreased.

Inventor has found after in depth studying: during existing glass bending, with the progress of hot bending, glass Hot bending part gradually widened at a distance from upper heating module, the heat for causing heating module to provide to the hot bending part of glass As the hot bending part moves down and reduce.Until the hot bending part of glass is close to certain journey at a distance from lower heating module After degree, lower heating module could gradually enhance to the heat that the hot bending part of glass provides.Thus lead to the hot bending part of glass The heat of absorption is in cyclically-varying, so as to cause glass hot bending surface quality is poor, hot bending speed is slow.

During the predetermined fraction heated bending of glass plate 2, which moves downward to realize bending.By It can be arranged up or down in the first heating member 413, therefore the first heating member 413 can be moved down, to make the first heating The distance between part 413 and the predetermined fraction of glass plate 2 remain unchanged.That is, the first heating plate 411 and the default portion Dividing can be remained unchanged at a distance from the predetermined fraction with synchronizing moving so as to the first heating member 413, until glass plate 2 is fitted in stone On the upper surface of black mold 430, to form 3D glassware 3.

It is possible thereby to which the heat for absorbing the predetermined fraction of glass plate 2 is held essentially constant, so as to avoid glass There is cyclically-varying as the predetermined fraction is different from the distance of the first heating member 413 in the temperature of the predetermined fraction of plate 2. It is possible thereby to improve the being heated evenly property of the predetermined fraction of glass plate 2, i.e., during hot bending, the first heating member 413 is to glass The heat that the predetermined fraction of glass plate 2 provides will not move down with the predetermined fraction and be reduced, so as to improve glass The hot bending surface quality and hot bending speed of plate 2.

After glass plate 2 is bonded completely with graphite jig 430, the first heating member 413 is no longer moved, by preset program to 3D glass After glass product 3 (glass plate 2) held for some time, the first heating member 413, which moves up, restores initial position (original state).

Upper heating module 410,3D glass bending device 40 and 3D glass heat bender 1 according to an embodiment of the present invention are by making First heating member 413 can be arranged up or down, thus when carrying out hot bending to glass plate 2, can make the first heating member 413 with The predetermined fraction synchronizing moving of glass plate 2 is to remain unchanged the first heating member 413 at a distance from the predetermined fraction.

It is possible thereby to improve the being heated evenly property of the predetermined fraction of glass plate 2, i.e., during hot bending, the first heating member 413 will not move down with the predetermined fraction to the heat that the predetermined fraction of glass plate 2 provides and be reduced, so as to mention The hot bending surface quality and hot bending speed of high glass plate 2.Compared with prior art, by using on according to an embodiment of the present invention It is left can be improved 10% by heating module 410,3D glass bending device 40 and 3D glass heat bender 1 for the hot bending speed of glass plate 2 It is right.

Therefore, upper heating module 410 according to an embodiment of the present invention, 3D glass bending device 40 and 3D glass heat bender 1 Have many advantages, such as that hot bending surface quality is good, hot bending speed is fast.

Continue to be passed through inert gas (being continually fed into inert gas), after heat preservation, starts to reduce being fitted in graphite mo(u)ld The temperature of 3D glassware 3 on the upper surface of tool 430, when the temperature of 3D glassware 3 is down to the strain point of 3D glassware 3 After below temperature, vacuum generator is closed.It thus it can be prevented that 3D glassware 3 does not deform in temperature-fall period.

After hot bending, 3D glassware 3 is transported in anneal chamber 113, using annealing device 30 to 3D glassware 3 It anneals.Wherein, annealing temperature can determine that this has no essential distinction with the prior art, therefore according to the ingredient of glass plate 2 No longer describe in detail.

As depicted in figs. 1 and 2,3D glass heat bender 1 may further include gas hood 50, and gas hood 50 is in open position and closes It can be located at up or down in hot bending chamber 112 between closed position.For example, can use cylinder or electric cylinders driving gas hood 50 vertically Direction is mobile.Gas hood 50 positioned at the closed position can cooperate with the wall surface of hot bending chamber 112, the gas hood positioned at the closed position Inert gas cavity can be limited between 50 and the wall surface of hot bending chamber 112,3D glass bending device 40 can be located at the indifferent gas In body cavity, the wall surface of hot bending chamber 112 can be detached from positioned at the gas hood 50 of the open position.

Specifically, gas hood 50 can be made to be moved down into the pass after glass plate 2 is placed on graphite jig 430 Closed position.Since the inert gas that 3D glass bending device 40 is located at small volume is intracavitary, inertia can be not only reduced The dosage of gas, and thermal loss can be further reduced.After hot bending, gas hood 50 can be made to be moved upwards up to the opening Position, to take 3D glassware 3 away.

The shape adaptation of the upper surface 4212 of the shape of the lower surface of graphite jig 430 and lower heating plate 421.It is possible thereby to Keep the structure of 3D glass bending device 40 more reasonable.

As shown in Figure 10 and Figure 11, the upper surface 4212 of lower heating plate 421 is equipped with groove 4213, bleed-off passage 4211 Upper port is provided on the wall surface of groove 4213.It is possible thereby to which more surfaces to graphite jig 430 carry out suction inertia Gas, to not only more inert gases can be made to enter in graphite jig 430, but also can enable glass plate 2 by It is adsorbed on graphite jig 430 strongerly.

Preferably, bleed-off passage 4211 can be multiple, and multiple bleed-off passages 4211 may be constructed multiple bleed-off passage groups, Each bleed-off passage group may include multiple bleed-off passages 4211.Wherein, multiple bleed-off passage groups can be along lower heating plate 421 one of horizontal and vertical is arranged at interval, and multiple bleed-off passages 4211 of each bleed-off passage group can edge The the other of horizontal and vertical of lower heating plate 421 is arranged at interval.

Wherein, when glass plate 2 is placed on graphite jig 430, the transverse direction of lower heating plate 421 can be with glass plate 2 Length direction it is consistent with one in width direction, the longitudinal direction of lower heating plate 421 can be with the length direction and width of glass plate 2 Another in degree direction is consistent.

As shown in Figure 10 and Figure 11, the lower port of bleed-off passage 4211 can be provided on the lower surface of lower heating plate 421, It is possible thereby to keep the structure of 3D glass bending device 40 more reasonable.

In a specific example of the invention, 3D glass bending device 40 may further include inert gas source and cut Change valve.The switching valve can have the first opening, the second opening and third opening, first opening can switchably with this Two openings are connected to one in third opening.Wherein, which can be connected to bleed-off passage 4211, this second is opened Mouth can be connected to the bleeding point of the vacuum generator, and third opening can be connected to the inert gas source.

When needing to take 3D glassware 3 away from graphite jig 430, make first opening and the third open communication, Then it can use the inert gas source and provide the inert gas of positive pressure to graphite jig 430 by bleed-off passage 4211.Thus Can prevent 3D glassware 3 from sticking together with graphite jig 430, so as to more easily, more easily from graphite Take 3D glassware 3 on mold 430 away.

In first example of the invention, upper heating module 410 and 3D glass bending device 40 may include upper heating Plate 419, upper heating plate 419 may include the first heating plate 411 and the second heating plate 412, and the first heating plate 411 and second heats Plate 412 is hinged.It is possible thereby to by making opposite second heating plate 412 of the first heating plate 411 pivot (such as the first heating plate 411 Rotate clockwise or rotate counterclockwise), so as to so as to be located in the first heating plate 411 or be located in the first heating plate 411 First heating member 413 moves up and down, to ensure the predetermined fraction synchronizing moving of the first heating member 413 and glass plate 2.

Preferably, at least one of the first heating plate 411 and the second heating plate 412 are equipped with evacuation notch.Thus may be used To avoid the first heating plate 411 and the second heating plate 412 mutually when opposite second heating plate 412 of the first heating plate 411 pivots Interference.

As shown in Fig. 4, Fig. 5, Fig. 7 and Fig. 8, upper heating module 410 and 3D glass bending device 40 be may further include The first adjustment bar 441 and the first actuator (not shown), the first adjustment bar 441 and the first heating plate 411 are hinged, this first Actuator is connected will pass through the first adjustment bar 441 and drive the first heating plate 411 mobile (pivot) with the first adjustment bar 441.

Thus first actuator can drive the first heating plate 411 and the first heating member 413 by the first adjustment bar 441 It is mobile according to preset program, it should so as to further ensure that the first heating plate 411 and the first heating member 413 and glass plate 2 Predetermined fraction synchronizing moving, to further ensure that the first heating member 413 is kept not at a distance from the predetermined fraction of glass plate 2 Become.

Furthermore, it is possible to substitute the first adjustment bar 441 using chain sling or lifting rope, at this time the first heating plate 411 its own It is moved down under weight effect, which can drive the first heating plate 411 to move up by chain sling or lifting rope.

Preferably, upper heating module 410 and 3D glass bending device 40 may further include the first free bearing 471, and first Free bearing 471 can be located in the first heating plate 411, and the first adjustment bar 441 can be hinged with the first free bearing 471.It is possible thereby to make Upper heating module 410 and the structure of 3D glass bending device 40 are more reasonable.

As shown in figure 9, the first heating member 413 can be the first heating tube, the second heating member 414 can be the second heating Pipe, upper heating module 410 and 3D glass bending device 40 may further include the first connecting plate 451.First 451 sets of connecting plate It is located in each of first heating tube and second heating tube, one of first heating tube and second heating tube Opposite first connecting plate 451 is rotatably arranged.It is possible thereby to make the structure of heating module 410 and 3D glass bending device 40 More rationally.

Preferably, which is rotatably arranged with respect to first connecting plate 451, and the first connecting plate 451 is located at In second heating plate 412.It is further preferred that the first connecting plate 451 is welded in the second heating plate 412.It is possible thereby to make to add Thermal module 410 and the structure of 3D glass bending device 40 are more firm.

As shown in Figure 7 and Figure 8, in second example of the invention, upper heating module 410 and 3D glass bending device 40 It may further include third heating plate 415 and third heating member 416.Third heating plate 415 can be located at the first heating plate 411 Between the second heating plate 412, third heating plate 415 and each of the first heating plate 411 and the second heating plate 412 are cut with scissors It connects.For example, third heating plate 415 can be in the horizontal direction between the first heating plate 411 and the second heating plate 412.The Three heating members 416 can be located in third heating plate 415 or be located in third heating plate 415.

When the bending amplitude of the predetermined fraction of glass plate 2 is larger, by the way that third heating plate 415 is arranged, the can be made One heating member 413 and third heating member 416 can more easily, it is more easily synchronous with the predetermined fraction of glass plate 2 It is mobile, to further ensure that the first heating member 413 and third heating member 416 are protected at a distance from the predetermined fraction of glass plate 2 It holds constant.

Preferably, the first evacuation notch can be equipped on the part of the neighbouring third heating plate 415 of the first heating plate 411 4111, third heating plate 415 can be equipped with the second evacuation notch 4151 on the part of the first heating plate 411, and third adds The part of neighbouring second heating plate 412 of hot plate 415 is equipped with third and avoids notch 4152.It is possible thereby in third heating plate When 415 opposite second heating plates 412 pivots, opposite second heating plate 412 of the first heating plate 411 and third heating plate 415 pivot, Third heating plate 415 and the second heating plate 412 is avoided to interfere, the first heating plate 411 and third heating plate 415 are mutually done It relates to.

It is further preferred that the first evacuation notch 4111 can be located at the lower part of the first heating plate 411, the second evacuation notch 4151 can be located at the lower part of third heating plate 415, and third evacuation notch 4152 can be located at the lower part of third heating plate 415. It is possible thereby to further avoid third heating plate 415 and the second heating plate 412 interferes, the first heating plate 411 and third add Hot plate 415 interferes.

As shown in Figure 7 and Figure 8, in third example of the invention, third heating plate 415 can be multiple, Duo Ge Three heating plates 415 can be between the first heating plate 411 and the second heating plate 412.Wherein, multiple third heating plates 415 can With successively hinged, one in multiple third heating plates 415 can be hinged with the first heating plate 411, multiple third heating plates 415 In another can be hinged with the second heating plate 412.

For example, multiple third heating plates 415 can be located at the first heating plate 411 and the second heating plate in the lateral direction Between 412, left and right directions is as shown in the arrow D in Fig. 1 and Fig. 7.The third heating plate 415 of the leftmost side can be with the first heating plate 411 is hinged, and the third heating plate 415 of the rightmost side can be hinged with the second heating plate 412.

As shown in Figure 4 and Figure 5, upper heating module 410 and 3D glass bending device 40 may further include second adjustment Bar 442 and the second actuator (not shown), second adjustment bar 442 can be hinged with third heating plate 415, second driving Part can be connected will pass through second adjustment bar 442 and drive third heating plate 415 mobile (pivot) with second adjustment bar 442.

Thus second actuator can drive third heating plate 415 and third heating member 416 by second adjustment bar 442 It is mobile according to preset program, it should so as to further ensure that third heating plate 415 and third heating member 416 and glass plate 2 Predetermined fraction synchronizing moving, to further ensure that third heating member 416 is kept not at a distance from the predetermined fraction of glass plate 2 Become.

Furthermore, it is possible to substitute second adjustment bar 442 using chain sling or lifting rope, at this time third heating plate 415 its own It is moved down under weight effect, which can drive third heating plate 415 to move up by chain sling or lifting rope.

Preferably, upper heating module 410 and 3D glass bending device 40 may further include the second free bearing 472, and second Free bearing 472 can be located in third heating plate 415, and second adjustment bar 442 can be hinged with the second free bearing 472.It is possible thereby to make Upper heating module 410 and the structure of 3D glass bending device 40 are more reasonable.

As shown in fig. 6, the first heating member 413 can be the first heating tube, the second heating member 414 can be the second heating Pipe, third heating member 416 can be third heating tube, and upper heating module 410 and 3D glass bending device 40 further comprise the Two connecting plates 452 and third connecting plate 453.

Second connecting plate 452 is set in each of second heating tube and the third heating tube, second heating Opposite second connecting plate 452 of one of pipe and the third heating tube is rotatably arranged.Third connecting plate 453 be set in this In each of one heating tube and the third heating tube, one of first heating tube and the third heating tube are with respect to third Connecting plate 453 is rotatably arranged.It is possible thereby to make the structure more adduction of heating module 410 and 3D glass bending device 40 Reason.Preferably, which is rotatably arranged with respect to third connecting plate 453, and second heating tube is with respect to the second connection Plate 452 is rotatably arranged, and third connecting plate 453 is located in third heating plate 415, and the second connecting plate 452 is located at third connection On plate 453.It is further preferred that third connecting plate 453 is welded in third heating plate 415, the second connecting plate 452 is welded on On three connecting plates 453.It is possible thereby to keep heating module 410 and the structure of 3D glass bending device 40 more firm.

As shown in Fig. 4, Fig. 5, Figure 10 and Figure 11, in the 4th example of the invention, the first heating plate 411 can be two A, upper heating module 410 and 3D glass bending device 40 further comprise the 4th heating plate 417 and the 4th heating member 418, the 4th Heating member 418 is located in the 4th heating plate 417 or is located in the 4th heating plate 417.

Second heating plate 412 is between third heating plate 415 and the 4th heating plate 417.Third heating plate 415 is located at the Between two heating plates 412 and first heating plate 411, third heating plate 415 and the second heating plate 412 and one first heating Each of plate 411 is hinged.4th heating plate 417 between the second heating plate 412 and another first heating plate 411, 4th heating plate 417 and each of the second heating plate 412 and another the first heating plate 411 are hinged.Thus upper heated mould Group 410 and 3D glass bending device 40 can there are two the glass plates 2 of the predetermined fraction (two to hot bending part) to carry out to tool Heating.

Wherein, the connection type of the 4th heating plate 417, the second heating plate 412 and another the first heating plate 411 with it is above-mentioned The first heating plate 411, the second heating plate 412 it is identical with the connection type of third heating plate 415, no longer retouch in detail herein It states.

Whether third heating plate 415, the quantity of the 4th heating plate 417 and third heating plate 415, the 4th heating plate are set 417 quantity can be determined according to the shape of the 3D glassware 3 of required machine-shaping.

Preferably, the part of neighbouring 4th heating plate 417 of another the first heating plate 411 is equipped with the 4th evacuation notch 4112, the part of another neighbouring the first heating plate 411 of the 4th heating plate 417 is equipped with the 5th evacuation notch 4171, and the 4th The part of neighbouring second heating plate 412 of heating plate 417 is equipped with the 6th evacuation notch 4172.It is possible thereby in the 4th heating plate 417 opposite second heating plates 412 pivot, another first heating plate 411 is with respect to the second heating plate 412 and the 4th heating plate 417 When pivot, the 4th heating plate 417 and the second heating plate 412 is avoided to interfere, the 4th heating plate 417 and another first heating Plate 411 interferes.

It is further preferred that the 4th evacuation notch 4112 is located at the lower part of another the first heating plate 411, the 5th evacuation notch 4171 are located at the lower part of the 4th heating plate 417, and the 6th evacuation notch 4172 is located at the lower part of the 4th heating plate 417.It is possible thereby to Further avoid the 4th heating plate 417 and the second heating plate 412 interfere, the 4th heating plate 417 and another first heating Plate 411 interferes.

Preferably, the 4th heating plate 417 can be multiple, and multiple 4th heating plates 417 are positioned at the second heating plate 412 and separately Between one the first heating plate 411.Wherein, multiple 4th heating plates 417 are successively hinged, and one in multiple 4th heating plates 417 A hinged with the second heating plate 412, another in multiple 4th heating plates 417 is hinged with another first heating plate 411.

As shown in Figure 4 and Figure 5, upper heating module 410 and 3D glass bending device 40 may further include third adjustment Bar 443 and third actuator (not shown), it is hinged with the 4th heating plate 417 that third adjusts bar 443, the third actuator and Third adjustment bar 443 is connected will pass through third adjustment bar 443 and drive the 4th heating plate 417 mobile (pivot).

Thus the third actuator can adjust bar 443 by third and drive the 4th heating plate 417 and the 4th heating member 418 It is mobile according to preset program, it should so as to further ensure that the 4th heating plate 417 and the 4th heating member 418 and glass plate 2 Predetermined fraction synchronizing moving, to further ensure that the 4th heating member 418 is kept not at a distance from the predetermined fraction of glass plate 2 Become.

Furthermore, it is possible to using chain sling or lifting rope substitution third adjust bar 443, at this time the 4th heating plate 417 its own It is moved down under weight effect, which can drive the 4th heating plate 417 to move up by chain sling or lifting rope.

Preferably, upper heating module 410 and 3D glass bending device 40 further comprise third free bearing 473, third free bearing 473 are located in the 4th heating plate 417, and third adjusts bar 443 and third free bearing 473 is hinged.It is possible thereby to make heating module 410 It is more reasonable with the structure of 3D glass bending device 40.

As shown in Figure 4 and Figure 5, upper heating module 410 and 3D glass bending device 40 further comprise fourth drive member 461, fourth drive member 461 is connected that the second heating plate 412 is driven to move up and down with the second heating plate 412.

When needing to carry out hot bending to glass plate 2, fourth drive member 461 drives the second heating plate 412 to move down, in turn The first heating plate 411 (third heating plate 415, the 4th heating plate 417) is driven to move down；After hot bending, the 4th driving Part 461 drives the second heating plate 412 to move up, and then drives the first heating plate 411 (third heating plate 415, the 4th heating plate 417) it moves up.It is possible thereby to which more easily, more easily glass plate is placed on graphite jig 430 and from stone 3D glassware 3 is taken away on black mold 430.

Preferably, fourth drive member 461 is located at outside furnace body 10, it is possible thereby to make the structure more adduction of 3D glass heat bender 1 Reason.

As shown in fig. 7, upper heating module 410 and 3D glass bending device 40 further comprise the first mounting plate 462, second Mounting plate 463 and guide post 464.First mounting plate 462 is located in the second heating plate 412, and the second mounting plate 463 is located at the first installation The top of plate 462, fourth drive member 461 are connected with the second mounting plate 463.The lower end of guide post 464 and 462 phase of the first mounting plate Even, guide post 464 is connected with the second mounting plate 463, and a part of guide post 464 passes through furnace body 10 and stretches out furnace body 10 upwards.Thus Heating module 410 and the structure of 3D glass bending device 40 can be made more reasonable.

Preferably, the first mounting plate 462 is located on the upper surface of the second heating plate 412, the upper end of guide post 464 and second Mounting plate 463 is connected.It is further preferred that guide post 464 can be multiple, multiple guide posts 464 are arranged at interval.It is possible thereby to make Upper heating module 410 and the structure of 3D glass bending device 40 are more reasonable.

Second cooling piece 480 can be arranged up or down between disengaging configuration and cooling position, be located at the disengaging configuration The second cooling piece 480 can be spaced apart with the second heating plate 412, the second cooling piece 480 positioned at the cooling position can be with The contact of second heating plate 412.For example, the second cooling piece 480 can be driven to move up and down by cylinder, electric cylinders etc..

Second cooling piece 480 can be used for controllably reducing furnace temperature.As shown in figure 3, the second cooling piece 480 may include Water coolers 481, the flow detector 482 for controlling inflow and the temperature detector for measuring return water temperature.It is cooling Water packet 481 can be arranged up or down between the disengaging configuration and the cooling position, positioned at the water coolers of the disengaging configuration 481 can be spaced apart with the second heating plate 412, and the water coolers 481 positioned at the cooling position can connect with the second heating plate 412 Touching.For example, water coolers 481 can be driven to move up and down by cylinder 483, electric cylinders etc..

In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three It is a etc., unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.

In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below " One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples It closes and combines.

Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, modifies, replacement and variant.

Claims

1. one kind is used for the molding graphite jig of 3D glass (430), which is characterized in that the porosity of the graphite jig (430) More than or equal to 12%.

2. according to claim 1 be used for the molding graphite jig of 3D glass (430), which is characterized in that the graphite mo(u)ld The porosity for having (430) is less than or equal to 40%, it is preferable that the porosity of the graphite jig (430) is more than or equal to 15% and small In being equal to 30%, it is further preferred that the porosity of the graphite jig (430) is more than or equal to 18% and is less than or equal to 25%, most Preferably, the porosity of the graphite jig (430) is 23%.

3. a kind of 3D glass bending device (40) characterized by comprising

Upper heating plate (419) and lower heating plate (421), the lower heating plate (421) are equipped with bleed-off passage (4211), the pumping The upper port in gas channel (4211) is provided on the upper surface (4212) of the lower heating plate (421)；

Graphite jig (430), the graphite jig (430) be according to graphite jig of any of claims 1 or 2 (430), it is described Graphite jig (430) is located on the upper surface (4212) of the lower heating plate (421), and the graphite jig (430) is located at described The lower section of upper heating plate (419)；With

Vacuum generator, the bleeding point of the vacuum generator are connected to the bleed-off passage (4211).

4. 3D glass bending device (40) according to claim 3, which is characterized in that the lower heating plate (421) it is upper Surface (4212) is equipped with groove (4213), and the upper port of the bleed-off passage (4211) is provided with the bottom of the groove (4213) On wall surface, it is preferable that the lower port of the bleed-off passage (4211) is provided on the lower surface of the lower heating plate (421).

5. 3D glass bending device (40) according to claim 3, which is characterized in that under the graphite jig (430) The shape adaptation of the upper surface (4212) of the shape on surface and the lower heating plate (421).

6. 3D glass bending device (40) according to claim 3, which is characterized in that the bleed-off passage (4211) is more A, multiple bleed-off passages (4211) constitute multiple bleed-off passage groups, and each bleed-off passage group includes multiple pumpings Gas channel (4211), the plurality of bleed-off passage group along the lower heating plate (421) it is one of horizontal and vertical between Separatedly it is arranged, the cross of multiple bleed-off passages (4211) of each bleed-off passage group along the lower heating plate (421) It is arranged at interval to the other of longitudinal.

7. the 3D glass bending device (40) according to any one of claim 3-6, which is characterized in that further comprise:

Inert gas source；With

Switching valve, the switching valve have first opening, second opening and third opening, it is described first opening switchably with institute State the second opening and the third and one of be open and be connected to, wherein first opening with the bleed-off passage (4211) even Logical, second opening is connected to the bleeding point of the vacuum generator, and the third opening is connected to the inert gas source.

8. a kind of 3D glass bending implemented using the 3D glass bending device (40) according to any one of claim 3-7 Method, which comprises the following steps:

A) glass plate is placed on the upper surface of graphite jig (430) of the 3D glass bending device (40)；

B the glass plate) is heated using the upper heating plate (419) of the 3D glass bending device (40) and lower heating plate (421), The heated hot bending of the glass plate is simultaneously fitted on the upper surface of the graphite jig (430), to form 3D glassware；With

C) implementing the step B) before, after or at the same time, inert gas is provided, and open the 3D glass bending device (40) vacuum generator is to vacuumize.

9. 3D glass bending method according to claim 8, which is characterized in that utilize the upper heating plate (419) and institute It states lower heating plate (421) and the glass plate is heated to the first preset temperature, first preset temperature is less than the glass plate Softening point temperature and be greater than the deformation point temperature of the glass plate, it is preferable that the softening point temperature and described first default Temperature difference is less than or equal to preset value.

10. 3D glass bending method according to claim 8 or claim 9, which is characterized in that the 3D glass bending method is into one Step includes:

D) continue to be passed through inert gas, reduce the temperature of the 3D glassware, when the temperature of the 3D glassware is down to institute After stating the strain point temperature of 3D glassware or less, the vacuum generator is closed,

Preferably, the 3D glass bending method further comprises: E) utilizing the indifferent gas of the 3D glass bending device (40) Body source provides inert gas to the graphite jig (430) by the bleed-off passage (4211) of the lower heating plate (421), then Take the 3D glassware away from the graphite jig (430).