CN107382040A

CN107382040A - A kind of high yield mobile terminal 3D cover glass heat pressing forming devices

Info

Publication number: CN107382040A
Application number: CN201710795383.XA
Authority: CN
Inventors: 张国军; 倪明堂; 张乐之
Original assignee: Guangdong Provincial Institute Of Intelligent Robotics
Current assignee: Guangdong Provincial Institute Of Intelligent Robotics
Priority date: 2017-09-06
Filing date: 2017-09-06
Publication date: 2017-11-24

Abstract

The invention discloses a kind of high yield mobile terminal 3D cover glass heat pressing forming devices.The high yield mobile terminal 3D cover glasses heat pressing forming device of the present invention can improve product yield when making some sides and having the glass material cover glass of curved face part by rationally improving forming temperature, temperature control precision and temperature adjusting response can also be improved, reduce thermograde and die cost, and various radius curved face parts are molded easily, and, it is press-formed due to the separating type die being molded with providing the shaping position pressurization just for cover glass just for the shaping position of plate glass, not only shorten the hot-forming time, also as the mold material of the part of contact glass is arranged to advanced material and reduces unitary mould expense, its separate structure taken can produce the mould corresponding to variously-shaped operations for forming easily.

Description

A kind of high yield mobile terminal 3D cover glass heat pressing forming devices

Technical field

Can be the present invention relates to a kind of high yield mobile terminal 3D cover glass heat pressing forming devices, especially one kind Make some sides and product yield is improved when there is the glass material cover glass of curved face part, reduce die cost and easily Ground is molded the smart mobile phone 3D cover glass heat pressing forming devices that some sides have the curved face part of various radiuses.

Background technology

At present, the protective cover plate of the mobile terminal such as smart mobile phone, tablet personal computer, especially smart mobile phone gradually abandons resin Cover and be improved the glass material protective cover plate of product quality using robustness and attractive in appearance improved.

Although the glass of plate morphology can use pressing method that required thickness is made with stack and produce in batches, if The glass material cover glass that dry side side or three sides or four sides have curved face part is then put into base material by lower mould and top Aftershaping makes inside the mold that mould is formed.

Prior art generally carries out hot pressing in the forming process of cover glass under 700~800 DEG C of forming temperature Shaping, yield are limited.

Meanwhile prior art, in the forming process of cover glass, generally use nitrogen is as protective gas.However, Nitrogen thermal conductivity factor is relatively low, easily causes big thermograde, temperature control precision and temperature adjusting response bad, so as to influence Product yield, and then increase production cost, reduce product quality.

In addition, prior art must remake mould in the curved face part radius change of cover glass, therefore change Need to spend very high die cost during appearance design, so as to greatly improve the production cost of product.

The content of the invention

The purpose of the present invention is to solve the shortcomings of the prior art provide a kind of high yield mobile terminal 3D cover glasses Heat pressing forming device, it can be by reasonable when can have the glass material cover glass of curved face part in some sides of making Improve forming temperature and then improve product yield, moreover it is possible to improve temperature control precision and temperature adjusting response, reduce temperature ladder Degree and die cost, and various radius curved surfaces are molded easily, it is additionally, since the shaping provided just for cover glass The separating type die that is molded position pressurization and be press-formed just for the shaping position of plate glass, not only shorten shape into The type time, also as the metal material at the position of contact glass is arranged to advanced material and reduces unitary mould expense, it is adopted The separate structure taken can produce the mould corresponding to variously-shaped operations for forming easily.

To achieve the above object, a kind of high yield mobile terminal 3D cover glass heat pressing forming devices of the invention, Chamber interior transfers mould successively, and the mould passes sequentially through auxiliary preheating chamber, the first preheating part, the by transport mechanism Two preheating parts, the 3rd preheating part, forming part, the first cooling end, the second cooling end, supplement heat rejecter room, so according to preheating, into Type, the order of cooling carry out heating stage by stage, hot-forming and cool down stage by stage；Inertia protection gas is persistently put into the chamber Body；The mould includes the plate glass that lower mould, upper mould and material are strengthened glass, and forming part, supporting part and to upper mould The guiding element of guide-localization is carried out, wherein, between lower mould and upper mould, forming part is fixedly connected plate glass with upper mould；It is described First preheating part, the second preheating part, the 3rd preheating part, forming part, the first cooling end, the second cooling end are multiple storing mould Lower heating plate ~ lower heating plate is arranged on chamber interior bottom faces, is moved up and down being driven by multiple actuators ~ actuator Upper heating plate ~ upper heating plate corresponds to the lower heating plate ~ lower heating plate installation；The forming part is heated to mould to compare flat board Glass naturally droops the forming temperature of high 10~100 DEG C of normal temperature of softening and applies predetermined pressure and cause formed from plate glass For required shape.

Preferably, it is plate glass in chamber indoor horizontal and close that the plate glass, which naturally droops softening normal temperature, When being snugly placed in the supporting plate that can make plate glass one gauged distance of all outline edges protrusions, plate glass can be made Section outline edge naturally droops distance and reaches temperature when more than a gauged distance.

Preferably, the relatively described supporting plate in all outline edges of plate glass protrudes 1cm, the plate glass The gauged distance that certain section of outline edge naturally droops is 0.1mm.

Mould is heated to about 1000~1300 DEG C of forming temperature and applies predetermined pressure and cause flat by the forming part Glass sheet is shaped to required shape.

Preferably, the inert protective gas is the mixed gas that nitrogen and helium are mixed to get by a certain percentage.

Preferably, in the mixed type protective gas of the nitrogen and helium composition, the quality of nitrogen and helium compares scope For 5 to 1000.

Preferably, the forming part separates with upper mould.

Preferably, mould on second, is made up of cope plate and upper die forming portion, the upper die forming portion is incorporated in cope plate Bottom surface sections gabarit, its bottom surface sections is formed with the upper forming surface that the terminal part of plate glass is molded；Guiding element, installed in second Between upper mould and second time mould and guide upper die forming portion and move up and down；Second time mould, is made up of lower template and supporting part, the branch Support part is highlightedly incorporated in the top gabarit of lower template with bolt upward, upper side then formed with corresponding to upper forming surface it is lower into Type face.

In order to prevent the pars intermedia of plate glass from deforming in shaping, in addition to：Upper intermediate support beam, in cope plate Between portion be protrudedly formed down and shaping when support plate glass pars intermedia top；Lower intermediate support beam, in lower template Pars intermedia is protrudedly formed and the pars intermedia bottom of plate glass is supported in shaping upward.

Beneficial effects of the present invention：The high yield mobile terminal 3D cover glass heat pressing forming devices of the present invention, not only Shape molding time is shortened, also as the metal material of the part of contact glass is arranged to advanced material and reduces unitary mould Expense, its separate structure taken can produce the mould corresponding to variously-shaped operations for forming easily, and i.e. Make also reduce fraction defective using mould progress cover glass shaping, moreover, utilizing the curved surface forming framework for possessing curved face part Lateral pressurization is carried out, roll the processing such as pressurization, contrary flexure position local heating, pressurization air blowing and allows some sides to have for material The cover glass of curved face part very precise forming easily.

Brief description of the drawings

Fig. 1 is the schematic front view of shaped device first embodiment of the present invention.

Fig. 2 is the diagrammatic top view of shaped device first embodiment of the present invention.

Fig. 3 is the cover glass forming process figure of shaped device first embodiment of the present invention.

Fig. 4 a and 4b are cover glass diagrammatic illustrations.

Fig. 5 is the exploded perspective view of inventive die first embodiment.

Fig. 6 a and 6b are the use state sectional views of inventive die first embodiment.

Fig. 7 a and 7b are the deformation implementation state diagrammatic illustrations of inventive die first embodiment.

Fig. 8 is the exploded perspective view of inventive die second embodiment.

Fig. 9 a and 9b are the use state sectional views of inventive die second embodiment.

Figure 10 is the deformation implementation state diagrammatic illustration of inventive die second embodiment.

Figure 11 is the figure of shaped device second embodiment of the present invention.

Figure 12 is the figure of shaped device 3rd embodiment of the present invention.

Figure 13 is the figure of shaped device fourth embodiment of the present invention.

Figure 14 is the figure of the embodiment of shaped device the 5th of the present invention.

Figure 15 is the implementation state diagram of the embodiment of shaped device the 5th of the present invention.

Figure 16 is the implementation state diagram of the embodiment of shaped device the 5th of the present invention.

Reference includes：

1：Chamber 2：Aid in preheating chamber

3：First preheating part 4：Second preheating part

5：3rd preheating part 6：Forming part

7：First cooling end 8：Second cooling end

9：Supplement heat rejecter room 10：Actuator

11：Lower heating plate 12：Upper heating plate

50：Curved surface forming framework 51：Curved face part

52：Material 53：Interior heater

54：More holes 55：Suction passage

56：Vacuum chamber 60：Fixed part

61：Actuator 62：Fix bar

70：Pressurization part 80：Roll pressurization part

81：Actuator 82：Backer roll

90：Heater 91：Heating lamp

92：Speculum 100：Pressurization air blowing portion

101：Actuator 102：Increased pressure frame

200：Mould 202：Cover glass

203：Bolt 210：Mould on first

211：Upper mold body 212：Pressurization part

213：Horizontal plane 214：Forming surface

220：First time mould 221：Lower mould body

222：Supporting surface 230：Mould on second

231：Cope plate 232：Upper die forming portion

233：Upper forming surface 234：Upper intermediate support beam

250：Second time mould 251：Lower template

252：Supporting part 253：Lower forming surface.

Embodiment

Describe the preferred embodiment of shaped device of the present invention in detail with reference to Fig. 1 to Figure 16.

Shaped device of the present invention divides into the first to the 5th embodiment according to its embodiment, therefore below will be with each reality Example is applied to illustrate.

First embodiment

Fig. 1 to Figure 10 illustrates first embodiment.

Transfer mould 200, and the mould successively inside the chamber 1 with certain sealability and thermal insulation capabilities By transport mechanism pass sequentially through auxiliary preheating chamber 2, the first preheating part 3, the second preheating part 4, the 3rd preheating part 5, forming part 6, First cooling end 7, the second cooling end 8, supplement heat rejecter room 9, and then according to the order of preheating, shaping, cooling stage by stage add It is hot, hot-forming and cool down stage by stage.

It is higher than the inert protective gas of pure nitrogen gas in the chamber 1 full of thermal conductivity factor.

The inert protective gas is that the mixed type that nitrogen (N2) and helium (He) are mixed to get by a certain percentage protects gas Body.

The mould 200 includes the plate glass 201 that lower mould, upper mould and material are strengthened glass, and forming part, support Portion and the guiding element that guide-localization is carried out to upper mould, wherein, plate glass 201 is between lower mould and upper mould, forming part and upper mould It is fixedly connected, and forming part separates with upper mould.

First preheating part 3, the second preheating part 4, the 3rd preheating part 5, forming part 6, the cooling of the first cooling end 7, second Multiple lower heating plate 11a ~ lower heating plate 11f of storing mould 200 are arranged on the interior bottom portion face of chamber 1 by portion 8, by multiple The upper heating plate 12a that actuator 10a ~ actuator 10f drives and moved up and down ~ upper heating plate 12f corresponds to the lower heating plate 11a ~ lower heating plate 11f installations.

Actuator 10a~actuator the 10f acts by hydraulic cylinder or servomotor.

The inside of chamber 1 maintains about 300 DEG C of temperature, what nitrogen (N2) and helium (He) were mixed to get by a certain percentage Mixed type protective gas is persistently put into inside it.

In the mixed type protective gas that the nitrogen and helium mix obtain, gas cost factor and mixed is considered The quality ratio scope of thermal conductivity factor changing factor, nitrogen and helium is 5 to 1000.Preferably, the mass ratio of nitrogen and helium Scope is 70 to 100.Further preferably, the quality ratio scope of nitrogen and helium is 85 to 90.

By described preferred, nitrogen, the mixed type protective gas of helium composition, cost does not almost increase, but heat conduction system Number has appropriate lifting, and so, this mixed type protective gas can suitably reduce auxiliary preheating chamber 2, the first preheating part 3, second Between the different zones such as preheating part 4, the 3rd preheating part 5, forming part 6, the first cooling end 7, the second cooling end 8, supplement heat rejecter room 9 Thermograde, avoid temperature drastically to change caused product yield to a certain extent and decline problem, simultaneously as protective gas Thermal conductivity factor slightly lifted, where temperature feedback sensor between position, heater heating position and key core working position Heat exchanger time can suitably shorten, can also improve to a certain extent auxiliary preheating chamber 2, the first preheating part 3, the second preheating part 4th, the different zones key core work such as the 3rd preheating part 5, forming part 6, the first cooling end 7, the second cooling end 8, supplement heat rejecter room 9 Make the temperature control precision and temperature adjusting response at position, beneficial to further improving hot-forming quality and yield.

Mould 200 inside input chamber 1 is after auxiliary preheating chamber 2 is put into, by transfer means (not shown) successively It is transplanted on preheating part 4 → the 3rd 5 → forming part of preheating part 6 → the first cooling end of 2 → the first preheating part of auxiliary preheating chamber 3 → the second 7 → the second 8 → supplement heat rejecter of cooling end rooms 9, in this process, the plate glass 201 as base material are heated and are shaped to Required form, that is, it is shaped to some sides and has to be discharged after the cover glass 202 of curved face part taken out with robot.

The auxiliary preheating chamber 2 is previously heated to mould 200 about 300 DEG C of temperature, and the first preheating part 3 is previously heated to About 400~550 DEG C of temperature, the second preheating part 4 are then previously heated to about 600~750 DEG C of temperature, and the 3rd preheating part 5 is then pre- It is first to heat to about 800~850 DEG C of temperature.

The forming part 6 mould 200 be heated to than plate glass 201 naturally droop softening normal temperature it is high by 10~100 DEG C forming temperature and apply predetermined pressure and so that plate glass 201 is shaped to required shape.

It is plate glass 201 level and close patch in chamber 1 that the plate glass 201, which naturally droops softening normal temperature, When being placed in closing in the supporting plate that can make one gauged distance of all outline edges protrusions of plate glass 201, plate glass can be made 201 certain section of outline edges naturally droop distance and reach temperature when more than a gauged distance.

The gauged distance and the flat board glass that the relatively described supporting plate in all outline edges of plate glass 201 protrudes The gauged distance that certain section of outline edge of glass 201 naturally droops is that the optimal parameter measured according to experiment combines.Generally, it is described flat The gauged distance that all outline edges of glass sheet 201 supporting plate relatively protrudes can select 0.5cm, 1cm, 2cm, 3cm, 4cm, 5cm etc., the gauged distance that described certain section of outline edge of plate glass 201 naturally droops can select 0.05mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm etc., both best of breeds can cause product yield highest.

Preferably, the relatively described supporting plate in all outline edges of plate glass 201 protrudes 1cm, the flat board The gauged distance that certain section of outline edge of glass 201 naturally droops is 0.1mm.

It should be noted that prior art is tended to be heated to enter near the softening point of plate glass 201 by plate glass 201 Row shaping, its softening point temperature are typically by conducting oneself with dignity with 1mm/min speed with the circular glass silk of the phase same material of plate glass 201 Temperature during degree elongation.The problem of softening point temperature tends to cause yield limited in actually shaping.The reason is that Air pressure environment and gaseous environment in chamber 1 have the difference of essence with the air under normal temperature and pressure, still by under normal temperature and pressure The softening point temperature that gaseous environment obtains is often below softening point temperature actual in chamber 1.However, in chamber 1 routinely The method of measurement softening temperature is difficult to measure the true softening temperature of plate glass 201, so needing to redefine a kind of simplicity Softening temperature assay method that is easy and being more easy to ensure yield rate during shaping.

Because the plate glass 201 naturally droops the definitive method of measurement of softening normal temperature from shape, gas pressure Temperature environment is closer to the actual completed state of plate glass 201, and thus, plate glass 201 of the present invention naturally droops soft The definitive method of measurement for changing normal temperature is easiest to find optimal forming temperature of the plate glass 201 in chamber 1.

As preferential, mould 200 is heated to about 1000~1300 DEG C of forming temperature and applied predetermined by the forming part 6 Pressure and cause plate glass 201 be shaped to required shape.By experiment test, 1000~1300 DEG C of forming temperature is applied to The plate glass 201 of most of materials.

Due to forming temperature than plate glass naturally droop softening normal temperature it is lower slightly, when plate glass is warm in forming part When molded, fragility is almost lost, reaches optimal completed state, it is not easy to it is broken, thus product yield is very high.

8 moulds 200 that have passed through forming part 6 of first cooling end 7 and the second cooling end slowly cool down, supplement heat rejecter room 9 allow the natural cooling of mould 200, and mould 200 is slowly cooled to about 50 DEG C of temperature in the supplement heat rejecter room 9 from 300 DEG C.

The final temperature for being discharged the mould 200 taken out with robot is about less than 70~80 degree.

The actuator 10 can rely on hydraulic cylinder or servomotor to act, although the more difficult accurate control of hydraulic cylinder is adapted to The batch production of product, servomotor can then realize accurate control.

Fig. 3 is to allow some sides especially one or both sides of cover glass to be shaped to by first embodiment of the invention The diagrammatic illustration of the state of curved face part, as we know from the figure as the mould 200 for having put into the plate glass 201 as base material is by adding Hot step, forming step, cooling step aftershaping are the cover glass 202 with curved face part, are applied in heating stepses The temperature of plate glass 201 slowly rises, and then forming temperature is maintained in forming step middle plateform glass 201, in forming step It is later then allow plate glass 201 to cool down.

Fig. 4 to Fig. 7 is the first embodiment figure of inventive die 200, and it includes：

Mould 210 on first, pressurization part 212 is protrudedly formed in the bottom surface sections of upper mold body 211, the pressurization part 212 has and work For be molded object plate glass 201 carries out face contact while be molded horizontal plane 213, in the horizontal plane 213 214,1 to 4 forming surfaces 214 of forming surface that gabarit is formed with being downwardly inclined with streamlined or required shape are formed at horizontal plane 213 gabarit；

First time mould 220, plate glass 201 is disposed, is made up of lower mould body 221, the lower mould body 221, which possesses to have to correspond to, to be added The horizontal plane 213 of splenium 212 and the supporting surface 222 of forming surface 214.

The mould 200 of first embodiment is made up of mould 210 on first with first time mould 220.

On first mould 210 pressurize in high temperature environments plate glass 201 top and cause plate glass 201 end into Type.

Mould 210, which possesses, on first the upper mold body 211 for being formed as rectangular shape, in the bottom surface sections court of upper mold body 211 Under be protrudedly formed to plate glass 201 pressurize pressurization part 212.

The bottom surface sections of pressurization part 212 formed with directly with plate glass 201 carry out face contact and pressurize horizontal plane 213 with Forming surface 214, with the pars intermedia of plate glass 201 carry out the horizontal plane 213 of face contact pressurization part 212 bottom surface sections flatly Formed.

Moreover, the forming surface 214 for carrying out face contact with two ends of plate glass 201 and shape being molded is then in water Two terminal parts of plane 213 are formed with being downwardly inclined.

The quantity of formation of forming surface 214 be can be formed when the gabarit of horizontal plane 213 has 4 sides 1 to 4 into Type face 214.

Also, can also be as shown in figure in horizontal plane 213 i.e., it is possible to only form forming surface 214 in the side of horizontal plane 213 Both sides formed forming surface 214, can also horizontal plane 213 three sides formed forming surface 214, can also be in horizontal plane 213 All sides form 4 forming surfaces 214.

In addition, first time mould 220 disposes plate glass 201 in shaping and possesses the lower mould body 221 for having rectangular shape, The upper side of lower mould body 221 is formed with the groove that the pressurization part 212 of mould 210 is inserted on first is allowed, and the bottom of the groove is formed with branch Support face 222, the supporting surface 222 corresponds to the horizontal plane 213 of pressurization part 212 and the ground of forming surface 214 forms curved surface.

That is, the pars intermedia of supporting surface 222 is horizontally formed and two ends are formed with being then downwardly inclined.

During using mould 210 on first so formed and first time 220 molding plate glass 201 of mould, as shown in Figure 6 a Plate glass 201 be placed on the supporting surface 222 of first time mould 220 mould 210 on relief first decline and in high temperature environments plus Pressure, the forming surface 214 so as to make easily by pressurization part 212 are molded with two ends of plate glass 201 The cover glass 202 of type.

In addition, Fig. 7 a and 7b illustrate the deformation implementation state of first embodiment mould,

The pressurization part 212 of mould 210 on first is formed separately from upper mold body 211, is formed in upper mold body 211 and allows pressurization part 212 be sandwiched into reference to clip slot 211a and be able to pressurization part 212 to be incorporated in upper mold body 211 in a manner of it can dismantle；

The supporting surface 222 of first time mould 220 is formed separately from lower mould body 221, is formed in lower mould body 221 and allows supporting surface 222 be sandwiched into reference to engaging groove 221a and be able to supporting surface 222 is incorporated in a manner of it can dismantle lower mould body 221.

That is, the deformation implementation state of first embodiment with separate mode constitute the pressurization part 212 of mould 210 on first with The supporting surface 222 of first time mould 220.

When being formed as previously mentioned with separate mode, carry out face contact actual with plate glass 201 and be molded plus Splenium 212 is made using the high advanced material such as superhard alloy, graphite (Graphite) with supporting surface 222 and is minimized mould Has production cost.

That is, upper mold body 211 and pressurization part 212 are formed as the mould of first embodiment and are integrated, lower mould When body 221 is integrated with the formation of supporting surface 222, all mould inscapes are required for using high advanced material system Make, therefore die manufacturing cost will be of a relatively high, but when being formed as illustrated in figs. 7 a and 7b with separate mode, only pressurization part 212 are made with supporting surface 222 using high advanced material, and remaining inscape can then use cheap metal material Make, so as to be minimized mould production cost.

The mould for the first embodiment being described above is in one of pressurization part 212 and supporting surface 222 directly with plate glass 201 The state that face carries out face contact realizes shaping, therefore can also improve Forming Quality.

In addition, second embodiments of Fig. 8 to the Figure 10 exemplified with inventive die 200, it includes：Mould 230 on second, by upper Template 231 is formed with upper die forming portion 232, and the upper die forming portion 232 is incorporated in bolt 203 outside the bottom surface sections of cope plate 231 Exterior feature, its bottom surface sections is formed with the upper forming surface 233 that the terminal part of plate glass 201 is molded；Guiding element 240, is formed as four Arm of angle frame shape, between mould on second 230 and second time mould 250 and guide upper die forming portion 232 and move up and down；Second Lower mould 250, is made up of lower template 251 and supporting part 252, and the supporting part 252 is highlightedly incorporated in lower template with bolt 203 upward 251 top gabarit, upper side is then formed with the lower forming surface 253 corresponding to upper forming surface 233.

The mould of second embodiment of the invention constitutes mould with separate mode, mainly by mould 230 on second, guiding element 240, Second time mould 250 is formed.

Mould 230 has the cope plate 231 of rectangular shape on second, formed with multiple bolts hole on the cope plate 231.

The shaping position only to plate glass 201 is combined with bolt jointing manner in the bottom surface sections both sides of cope plate 231 The upper die forming portion 232 of pressurization, in the bottom surface in upper die forming portion 232 formed with the upper forming surface pressurizeed for plate glass 201 233。

The various sides such as bolt, pin, bonding (bonding) can be utilized when upper die forming portion 232 is incorporated in cope plate 231 Method combines.

Guiding element 240 has rectangular shaped rim shape, and it is placed in the upper side of second time mould 250 and guides mould on second 230 move up and down.

Moreover, the shape of guiding element 240 is not limited to rectangular shape, can be according to the shape of mould on second 230 and second time mould 250 Shape and be deformed into variously-shaped.

In addition, second time mould 250 possesses the lower template 251 for having rectangular shape, supporting part 252 corresponds to upper die forming portion 232 ground are prominent upward and are incorporated in the upper surface of lower template 251.

In the upper surface of supporting part 252 formed with the lower forming surface 253 corresponding to upper forming surface 233, in upper forming surface 233 The shaping of plate glass 201 is realized between lower forming surface 253.

The shape of mould 230 and second time mould 250 is not limited to rectangular shape on second, can form various forms.

The operations for forming carried out using the second embodiment that so forms is placed in the as illustrated in fig. 9, plate glass 201 On the supporting part 252 of two times moulds 250, mould 230 on second is driven to decline in high temperature environments, the upper shaping in upper die forming portion 232 Slowly pressurize and the shaping position of plate glass is molded as shown in figure 9b in shaping position of the face 233 to plate glass 201 For curve form or required shape, so as to complete the shaping of cover glass 202.

In addition, deformation implementation states of the Figure 10 exemplified with second embodiment mould 200,

In order to prevent the pars intermedia of plate glass 201 from deforming in shaping, in addition to：

Upper intermediate support beam 234, it is protrudedly formed down in the pars intermedia of cope plate 231 and supports plate glass in shaping 201 pars intermedia top；Lower intermediate support beam 254, the branch when the pars intermedia of lower template 251 is protrudedly formed and is being molded upward Support the pars intermedia bottom of plate glass 201.

That is, as shown in Figure 10, the intermediate support beam 234 on the pars intermedia of cope plate 231 is protrudedly formed down, under The pars intermedia of template 251 is protrudedly formed lower intermediate support beam 254 upward, so as to shaping when by upper intermediate support beam 234 with Lower intermediate support beam 254 gives support to the pars intermedia of the plate glass 201 of shaping and is able to prevent that flat board glass occurs during shaping The situation of the pars intermedia deformation of glass 201.

Moreover, it is preferred that do not conducted heat to plate glass 201 when intermediate support beam 234, intermediate support beam 254 are from being molded Heat-barrier material is formed.

The composition that the mould of the second embodiment of the invention so formed is formed mould due to being formd with separate mode will Element, it is therefore desirable to prevent as long as changing necessary part when changing the shape of cover glass 202 with regard to that can be made for variously-shaped Protect the mould of cloche 202.

Second embodiment

Figure 11 illustrates second embodiment of the invention, and it includes：

Curved surface forming framework 50, at one end or both ends possess curved face part 51, and the flat-form material 52 in pre- Warm status is placed in Portion face；Fixed part 60, driven and moved up and down and with one end of material 52 fixed in shaping by actuator 61 Fix bar 62；Pressurization part 70, there is pressure sheet 72, be actuated device 71 and drive and move up and down and in shaping to material 52 side applies inclined loading so that material 52 is in close contact with curved face part 51 and realizes curved face part and be molded.

The second embodiment so formed utilizes the curved surface that top opens without using the mold being made up of upper and lower mould The curved face part of cover glass is subject to brake forming by shaping frame 50.

The fixed part 60 as inscape is arranged on the chamber interior of sealing (not shown) with pressurization part 70, is throwing The upper side for entering the curved surface forming framework 50 of the chamber interior then puts the template material 52 in pre- Warm status.

During forming action, form the fixed part 60 fix bar 62 be actuated device 61 operation driving and decline and handle One end of material 52 is fixed, and the pressure sheet 72 for forming pressurization part 70 is then actuated device 71 and drives and decline and to material 52 end force.

Whereby, declined by the plus-pressure of pressure sheet 72 with material 52 existing for pre- Warm status and with curved surface forming frame The curved face part 51 of frame 50 is in close contact, so that the curved face part brake forming of cover glass.

3rd embodiment

Figure 12 illustrates third embodiment of the invention, and it includes：

Curved surface forming framework 50, at one end or both ends possess curved face part 51, and the flat-form material 52 in pre- Warm status is placed in Portion face；Fixed part 60, driven and moved up and down and with one end of material 52 fixed in shaping by actuator 61 Fix bar 62；Pressurization part 80 is rolled, possesses backer roll 82, it is driven by the actuator 81 moved in the horizontal direction along guiding element It is dynamic and move up and down, movement is rolled to be in close contact the state on the surface of material 52 during shaping so that material 52 and curved face part 51 are tight Contiguity is touched and realizes curved face part and be molded.

The fixed part 60 of 3rd embodiment is also mounted at the chamber interior of sealing (not shown) with rolling pressurization part 80, is throwing The upper side for entering the curved surface forming framework 50 of chamber interior then puts the template material 52 in pre- Warm status.

During forming action, the fix bar 62 of fixed part 60 is actuated device 61 and drives and decline and being placed in curved surface forming One end of the material 52 of the upper side of framework 50 is fixed, and forms the actuator 81 for rolling pressurization part 80 along guiding element towards left and right Move and make it that backer roll 82 declines, and allows the material 52 being placed on curved surface forming framework 50 to be in close contact and bend with curved face part 51 Shaping, so as to be shaped to the cover glass with curved face part.

The actuator 81 is moved by the driving of power source (not shown) along guiding element in left and right directions.

The curved surface forming framework 50 itself can possess heater meanses, and material 52 is directly heated by the heater meanses To forming temperature.

Fourth embodiment

Figure 13 illustrates fourth embodiment of the invention, and it includes：

Curved surface forming framework 50, at one end or both ends possess curved face part 51, and the flat-form material 52 in pre- Warm status is placed in Portion face；

Heater 90, the heating lamp 91 of high temperature emissive light is arranged on the periphery of curved face part 51, speculum 92 is arranged on The outside of heating lamp 91, the speculum 92 focus on the light that the heating lamp 91 is launched the curved face part crooked position of material 52 And some sides especially one or both sides of material 52 are caused to realize that curved face part is molded.

Moreover, the side of the curved surface forming framework 50 possesses the suction passage 55 for having connection vacuum suction apparatus, with institute State suction passage 55 connection vacuum chamber 56 be formed inside curved surface forming framework 50, in curved face part 51 with the vacuum chamber 56 Communicatively form more holes 54 and be able to rely on the suction material 52 for passing through more holes 54 and curved face part 51 to be in close contact simultaneously Realize bending.

Moreover, being also equipped with interior heater 53 in the inside of the curved surface forming framework 50, it is with higher than other positions Temperature heating curved face part 51.

The fourth embodiment of the present invention be able to using heater 90 to being heated in the point of inflexion segment set of material 52 with Bending is realized by means of deadweight.

The heater 90 so formed is installed in the inside of the chamber of sealing (not shown).

After forming action starts, operated installed in the interior heater 53 of the curved surface forming framework 50 of chamber interior and right Curved face part 51 concentrates heating, and then bright light, the light that heating lamp 91 is launched then are reflected the heating lamp 91 of composition heater 90 Mirror 92 reflects and cover is in the point of inflexion part of material 52.

Whereby so that the toughness of point of inflexion part becomes most weak in material 52.

Now, the applying vacuum pressure of more holes 54 of curved face part 51 will be formed in the applying vacuum pressure of suction passage 55, Allow the curved face part 51 of material 52 and curved surface forming framework 50 to be in close contact by the vacuum pressure and be achieved the bending of curved face part.

5th embodiment

Figure 14 illustrates fifth embodiment of the invention, and it includes：

Fixed part 60, by actuator 61 drive and move up and down and with shaping when one end of material 52 be subject to fixation Fix bar 62；

Pressurize air blowing portion 100, the increased pressure frame 102 formed corresponding to the form of curved surface forming framework 50 can rely on The mode driven and moved up and down of actuator 71 is installed, and has been internally formed and the supply of nitrogen (N2) in the increased pressure frame 102 The hollow chamber 103 that connects of supply pipe 104, increased pressure frame 102 bottom surface sections then formed with nitrogen (N2) being discharged into Multiple discharge orifices 105 of the curved surface crooked position of material 52.

The discharge pressure for the nitrogen that the 5th embodiment so formed is discharged using air blowing portion 100 of pressurizeing adds material 52 With brake forming.

After starting forming action, the fix bar 62 for forming fixed part 60 is actuated the driving of device 61 and declined and material One end of material 52 is fixed, and drives increased pressure frame 102 to decline by the actuator 101 in pressurization air blowing portion 100 in this condition.

When increased pressure frame 102 declines, the nitrogen supplied by supply pipe 104 is then by hollow chamber 103 and the court of discharge orifice 105 Curved face part 51 is discharged, and nitrogen then causes the terminal part of material 52 to bend and be in close contact with curved face part 51, so as to realize bending.

Now, vacuum pressure is introduced in the inner vacuum vessel 56 of the curved surface forming framework 50 and is applied very by more holes 54 Pneumatics, so that the crooked position of material 52 is with the close contact completely of curved face part 51 and real cracking (crack) does not occur Existing curved face part shaping.

It is preferred that more holes 54 are shaped to microsize with discharge orifice 105.

In addition, Figure 15 illustrates the embodiment that the 5th embodiment is put into actual production technique, having the fixed part 60 are arranged side-by-side with multiple forming room 300 in pressurization air blowing portion 100, and input/taking-up machine is installed in the front of the forming room 300 Device people 111, the input/taking-up robot 111 is along guiding element 110 toward moving left and right and put into or take out curved surface forming framework 50。

The curved surface forming framework 50 put into the forming room 300 is heated to shaping temperature in respective forming room 300 Spend and realize bending.

Moreover, Figure 16 illustrates the other embodiments that the 5th embodiment is installed in production technology,

Being each formed with multiple forming room 300 with the fixed part 60 and pressurization air blowing portion 100 can be having put material The advance heating chamber 120 that preheat of curved surface forming framework 50 of material 52, the forming room 300 one is configured with arranging side by side, into The entrance side of type room 300 is provided with along guiding element 110 toward moving left and right and curved surface forming framework 50 is put into forming room 300 The input in portion robot 112, it is provided with along guiding element 110 is past and moves left and right and shaping in the outlet side of forming room 300 The taking-up robot 113 that the curved surface forming framework 50 of curved face part takes out.

The other embodiments due to yet forms both advance heating chamber 120 and can further shorten cover glass shaping when Between, input is separately installed with taking-up with robot 112 with robot 113 in the inlet port side of chamber 300, therefore can be entered One step improves material input with taking out accuracy of action.

The curved surface forming framework 50 that top opens is utilized cover plate suitable for the second to the 5th embodiment of the present invention Some sides especially one or both sides brake forming of cover is curved face part.

The embodiment is able to that die cost is greatly reduced, Er Qiegai without using the mold being made up of upper and lower mould Product can be promptly produced after taking measures to this during the curved face part radius for having become product.

Above content is only presently preferred embodiments of the present invention, for one of ordinary skill in the art, according to the present invention's Thought, there will be changes, this specification content should not be construed as to the present invention in specific embodiments and applications Limitation.

Claims

A kind of 1. high yield mobile terminal 3D cover glass heat pressing forming devices, it is characterised in that

Mould (200) is transferred successively inside chamber (1), and the mould (200) passes sequentially through auxiliary by transport mechanism Preheating chamber (2), the first preheating part (3), the second preheating part (4), the 3rd preheating part (5), forming part (6), the first cooling end (7), Second cooling end (8), supplement heat rejecter room (9), and then heated, be hot pressed into stage by stage according to the order of preheating, shaping, cooling Type and cool down stage by stage；

Inert protective gas is persistently put into the chamber (1)；

The mould (200) includes the plate glass (201) that lower mould, upper mould and material are strengthened glass, and forming part, support Portion and to upper mould carry out guide-localization guiding element, wherein, plate glass (201) between lower mould and upper mould, forming part with it is upper Mould connects；

First preheating part (3), the second preheating part (4), the 3rd preheating part (5), forming part (6), the first cooling end (7), Multiple lower heating plate (11a) ~ lower heating plates (11f) of storing mould (200) are arranged on chamber (1) inside by two cooling ends (8) Bottom faces, the upper heating plate (12a) for being driven and moving up and down by multiple actuators (10a) ~ actuator (10f) ~ upper heating Plate (12f) corresponds to the lower heating plate (11a) ~ lower heating plate (11f) installation；

The forming part (6) mould (200) be heated to than plate glass (201) naturally droop softening normal temperature it is high by 10~ 100 DEG C of forming temperature and apply predetermined pressure and so that plate glass (201) is shaped to required shape.
2. high yield mobile terminal 3D cover glass heat pressing forming devices according to claim 1, it is characterised in that institute It is that plate glass (201) is horizontal in chamber (1) and be brought into close contact ground to state plate glass (201) and naturally droop softening normal temperature When being placed in the supporting plate that can make plate glass (201) one gauged distance of all outline edges protrusions, plate glass can be made (201) certain section of outline edge naturally droops distance and reaches temperature when more than a gauged distance.
3. high yield mobile terminal 3D cover glass heat pressing forming devices according to claim 2, it is characterised in that institute State the relatively described supporting plate in all outline edges of plate glass (201) and protrude 1cm, certain section of foreign steamer of the plate glass (201) The gauged distance that wide edge naturally droops is 0.1mm.
4. high yield mobile terminal 3D cover glass heat pressing forming devices according to claim 1, it is characterised in that institute State forming part (6) mould (200) be heated to about 1000~1300 DEG C of forming temperature and apply predetermined pressure and cause flat board Glass (201) is shaped to required shape.
5. high yield mobile terminal 3D cover glass heat pressing forming devices according to claim 1, it is characterised in that institute It is the mixed gas that nitrogen and helium are mixed to get by a certain percentage to state inert protective gas.
6. high yield mobile terminal 3D cover glass heat pressing forming devices according to claim 3, it is characterised in that institute In the mixed type protective gas for stating nitrogen and helium composition, the quality ratio scope of nitrogen and helium is 5 to 1000.
7. high yield mobile terminal 3D cover glass heat pressing forming devices according to claim 1, it is characterised in that institute State forming part and upper mould is detachably connectable.
8. high yield mobile terminal 3D cover glass heat pressing forming devices according to claim 7, it is characterised in that

Also include mould (230) on second, by cope plate (231) and upper die forming portion（232）Form, the upper die forming portion（232） It is incorporated in the bottom surface sections gabarit of cope plate (231), its bottom surface sections is formed with being molded the terminal part of plate glass (201) Upper forming surface (233)；

Guiding element (240), between mould on second (230) and second time mould (250) and guide upper die forming portion（232）Up and down It is mobile；

Second time mould (250), is made up of lower template (251) and supporting part (252), and the supporting part (252) is upward highlightedly with spiral shell Bolt (203) is incorporated in the top gabarit of lower template (251), and upper side is then formed with the lower shaping corresponding to upper forming surface (233) Face (253).
9. high yield mobile terminal 3D cover glass heat pressing forming devices according to claim 8, it is characterised in that

In order to prevent the pars intermedia of plate glass (201) from deforming in shaping, in addition to：

Upper intermediate support beam (234), it is protrudedly formed down in the pars intermedia of cope plate (231) and supports flat board glass in shaping The pars intermedia top of glass (201)；

Lower intermediate support beam (254), it is protrudedly formed upward in the pars intermedia of lower template (251) and supports flat board glass in shaping The pars intermedia bottom of glass (201).