CN109836033A - Hot air forming method, hot gas move molding machine and hot gas moves formation system - Google Patents
Hot air forming method, hot gas move molding machine and hot gas moves formation system Download PDFInfo
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- CN109836033A CN109836033A CN201910007093.3A CN201910007093A CN109836033A CN 109836033 A CN109836033 A CN 109836033A CN 201910007093 A CN201910007093 A CN 201910007093A CN 109836033 A CN109836033 A CN 109836033A
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- 238000000465 moulding Methods 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 10
- 239000011521 glass Substances 0.000 claims abstract description 174
- 238000013461 design Methods 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims description 37
- 238000001816 cooling Methods 0.000 claims description 16
- 238000004513 sizing Methods 0.000 claims description 16
- 238000010583 slow cooling Methods 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000005498 polishing Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- 230000005484 gravity Effects 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The situation that the present invention be directed to the prior arts to be easy to produce impression when forming to bend glass or cause the dimensional accuracy error of bend glass blanket larger, a kind of hot air forming method is provided, hot gas moves molding machine and hot gas moves formation system, it is at the time of molding, soften the shape and size and form and dimensional precision of state glass plate by the shape and size specification of type chamber, the surface shape of glass after molding and dimension and shape and dimensional accuracy is set to meet the design size of finished product 3D bend glass, the requirement of shape, the spill cavity of communicate-type chamber is set, when the volume for softening state glass is greater than the volume of type chamber, extra softening state glass is entered in spill cavity and is kept in, device includes molding die, molding die includes upper die mold and lower die mold, it can be in the curvature portion for guaranteeing bend glass using the present invention Mold is avoided to form unnecessary impression on glass plate surface under the premise of dimensional accuracy.
Description
Technical field
The present invention relates to bend glass blanket machine-shaping field, in particular to a kind of hot air forming method, hot gas are dynamic
Molding machine.
Background technique
The forming method of 3D bend glass currently on the market mainly has gravity-bending method and the pneumatic method of forming.Using gravity
Bending method molding, makes glass reach softening state glass plate blank heating, then by the glass billet of the heating to its softening point
Plate blank material is delivered on the molding die of forming furnace, and molding die is equipped with indent forming surface, and glass plate blank relies on itself
Gravity makes its sag bent to indent forming surface, to form bend glass blanket.To reduce profile error, frequently in general
After glass plate blank heating to softening state, it is squeezed into predetermined shape up and down using mold, it can be in bend glass base but squeeze
More impression is formed on plate curved surface, the glass roughness produced is high, need the operating difficulties such as subsequent polishing, polishing,
Yields is generally lower, is difficult scale of mass production.
And the pneumatic method of forming, it is to avoid upper mold directly to oppress glass using the upper recess surface of air pressure compressing bend glass and cause
Impression, but the feelings that softening state softening state glass is assembled under gravity use to the lower position of curved surface easily occur in this mode
Condition, and be easy to blow out ripple on the glass surface when blowing to glass surface, it is not easy to guarantee the profile tolerance of 3D bend glass
Error needs to carry out subsequent polishing to curved surface after shaping toward contact.
In brief, using the curved surface forming that existing method carries out 3D bend glass require to carry out it is subsequent to curved surface into
Row polishing, polishing etc. propose high-precision processing, but in big to surface area, cambered and material itself intensity and not very high
Bend glass carry out sanding and polishing be it is more difficult, this link can not only waste more manpower and material resources, but also non-defective unit
Rate is relatively low, significantly limit production efficiency, especially in scale of mass production caused by influence be difficult to ignore.
Summary of the invention
The purpose of the present invention is be easy to produce impression when forming to bend glass for the prior art or cause
The larger situation of the dimensional accuracy error of bend glass blanket, a kind of hot air forming method is provided, hot gas moves molding machine and
Hot gas moves formation system, mold can be avoided in glass plate under the premise of guaranteeing the curvature portion dimensional accuracy of bend glass
Surface forms unnecessary impression.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of hot air forming method softens the shape of state glass plate by the shape and size specification of type chamber at the time of molding
With dimension and shape and dimensional accuracy, meet the surface shape of glass after molding and dimension and shape and dimensional accuracy
The requirement of the design size, shape of finished product 3D bend glass；The spill cavity of communicate-type chamber is set, when the volume of softening state glass is big
When the volume of type chamber, extra softening state glass is entered in spill cavity and is kept in；
Further, comprising the following steps:
S1 preheats the glass plate of plain film in lower die mold, reaches softening point；
S2 upper die mold and lower die mold clamping shape forming cavity carry out glass plate preforming；
S3 heating glass plate is simultaneously evacuated glass plate lower section through lower die mold, makes the pressure of the upper surface of glass plate
The powerful pressure in lower surface squeezes glass plate and carries out shaping；
S4 glass plate and molding die slow cooling are simultaneously cooled to room temperature；
Further, upper die mold is also penetrated in S3 step simultaneously to being inflated above glass plate.
A kind of dynamic molding machine of hot gas, including molding die, molding die include upper die mold and lower die mold, upper mold mould
Two moldings when being respectively arranged with forming surface, upper die mold and lower die mold clamping on tool and lower die mold surfaces opposite to each other
Shape forming cavity between face, after the spacing between the curve form of the forming surface of type chamber, size and upper and lower two forming surfaces makes molding
Glass meet the design size requirement of 3D bend glass, the edge of type chamber is provided with spill cavity, and the spill cavity and type chamber connect
It is logical；The gas passage through lower die mold is offered in the forming surface of lower die mold；After upper die mold and lower die mold clamping, type
Chamber is only capable of being in communication with the outside by gas passage；It further includes pneumatic sizing station, pneumatic station packet of being formed that hot gas, which moves molding machine,
Include bottom plate, the lower heating plate for being fixed in plate upper surface, the upper heating plate being arranged in above lower heating plate, in driving in heating plate
The air extractor of gas passage on the power device of lower slider, the upper plate for supporting power device and connection lower die mold；
Further, the exhaust passage for being connected to gas passage on lower die mold, pumping dress are had in bottom plate and lower heating plate
It sets and is connected to by exhaust passage with gas passage；
Further, the gas passage through upper die mold is offered in the forming surface of upper die mold；
Further, be provided with the inlet channel being connected to gas passage on upper die mold in upper heating plate, air charging system lead into
Gas channel is connected to gas passage.
A kind of dynamic formation system of hot gas, including workbench, mould shifting device and above-mentioned hot gas move molding machine, workbench bag
Include the Mould operation area set gradually, warm operation area, preforming work area, be pneumatically formed workspace, slow cooling workspace and cold
But workspace, Mould operation area are provided with die-sinking device, and warm operation area is provided with hot briquetting mold and glass plate thereon
Heating device, preforming work area is provided with the mold closing mechanism for upper die mold and lower die mold clamping, work of being pneumatically formed
Setting stand in pneumatically sizing workspace；Molding die is sent to subsequent work area from a upper workspace by mould shifting device；
Further, workbench circularizes setting, and cooling work area is connected to Mould operation area, and mould shifting device is by cooling work area
On molding die be sent to Mould operation area；
Further, it is additionally provided with discharging buffer area between cooling work area and pneumatic sizing workspace, Mould operation area and pre-
Feed surge area is provided between hot-zone.
The invention has the following advantages:
In the present invention, since the spacing between the curve form and upper and lower two forming surfaces of type chamber can make the size of the glass molded
Meet 3D bend glass finished product design size requirement, when soften state glass plate enter type it is intracavitary after and type chamber between meeting
Following relationship is formed, the thickness of glass plate is such as in upper end compared with thickness rate, then glass is in its thickness ratio after softening state
Type chamber up and down forming surface may be big apart from size, the glass that when molding then softens state can be in contact with the forming surface of type chamber, but
Since glass is softening and there are spill cavity, glass has flowed to spill cavity, and upper and lower forming surface will not be to the glass of softening state
Glass causes to squeeze, and therefore, glass surface after molding is smooth, and the constraint of the size due to type chamber, obtained finished product glass
The size and shape of glass can also meet the design size requirement of 3D bend glass；When the thinner thickness of glass billet slab, for example locate
In limit inferior deviation, then blank glass be in its thickness after softening state than above and below type chamber forming surface it is small apart from size, when molding
The glass for then softening state will not be in contact with the forming surface of type chamber, then obtain qualified finished product 3D bend glass, or due to glass
It forms partial points in glass bending process to be in contact with the forming surface of upper die mold, then the glass for being higher by place can be to shifting at low spot
Dynamic, the forming surface of upper die mold will not cause to squeeze to place is higher by, and the thickness of entire bend glass is made to meet design ruler
Very little requirement and smooth.By setting type chamber, spill cavity and gas passage, make mold can be realized to glass slab it is pneumatic at
Type is realized to the extrusion forming of glass using the differential pressure of atmospheric pressure of glass upper and lower surface, avoids mold and cause not in glass surface
Necessary impression effectively reduces the impression of glass, reduces later period polishing difficulty, promotes product yield, improve production efficiency, save
Production cost.The overall structure that hot gas moves molding machine helps to realize the molding automatic cycle of bend glass and carries out, can be with
Significantly improve production efficiency.
Detailed description of the invention
Fig. 1 is hot air forming method flow chart；
Fig. 2 is the example structure schematic diagram that hot gas moves formation system in the present invention；
Fig. 3 is the structural schematic diagram that hot gas of the present invention moves molding machine；
Fig. 4 is the structural schematic diagram that hot gas of the present invention moves molding die in molding machine example structure.
Description of symbols, 100, glass plate；
200, molding die；210, upper die mold；220, lower die mold；230, gas passage；240, spill cavity；250, type chamber；
300, it is pneumatically formed station；310, bottom plate；320, lower heating plate；330, upper heating plate；340, upper plate；350, power fills
It sets；360, inlet channel；370, exhaust passage；
400, workbench；410, Mould operation area；420, warm operation area；430, preforming work area；440, it is pneumatically formed work
Make area；450, slow cooling workspace；460, cooling work area；470, feed surge area；480, discharge buffer area；
500, mould shifting device.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.The wherein identical appended drawing reference of identical components
It indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to it is attached
Direction in figure.
A kind of hot air forming method, as shown in Figure 1, at the time of molding, being softened by the shape and size specification of type chamber 250
The shape and size and form and dimensional precision of state glass plate 100, make surface shape and the size of glass after molding with
And dimensional accuracy meets the requirement of the design size, shape of finished product 3D bend glass；The spill cavity 240 of communicate-type chamber 250 is set,
When the volume for softening state glass is greater than the volume of type chamber 250, extra softening state glass is entered in spill cavity 240 and is kept in.
Itself the following steps are included:
After the glass plate 100 of plain film is placed on 220 upper feeding of lower die mold by S1, to the glass of plain film in lower die mold 220
Glass blanket 100 is preheated, and softening point is reached.
S2 upper die mold 210 and lower die mold 220 mold shape forming cavity 250, glass plate 100 is carried out it is preforming, such as
There is extra softening state glass then to enter spill cavity 240.
S3 heats glass plate 100 and through lower die mold 220 to being evacuated below glass plate 100, makes glass billet
The pressure of the upper surface of plate 100 is greater than the pressure of lower surface, squeezes glass plate 100 and carries out shaping；And by type chamber 250 to glass
Blanket 100 is constrained, and is then flowed into the glass reflux of spill cavity 240 if any glass size retraction under the action of upper and lower pressure difference
Into type chamber 250；It is preferred that being inflated simultaneously through upper die mold 210 to the top of glass plate 100 in the process.Glass
Pressure difference between upper and lower surface can be using pneumatic molding pressure difference in the prior art, because not being that emphasis of the invention is not made herein
Excessive explanation.
It after 200 slow cooling of S4 glass plate 100 and molding die, and is cooled to room temperature, removes the glass of final molding.Into
Cooling time is consistent with conventional method depending on the specific requirement of each department when row slow cooling.
Using above method processing curve glass, the curve form and size of type chamber 250 will guarantee curved surface glass after molding
The curve form and size of glass meet the design requirement of bend glass finished product, this just needs to design mould by the design rule of mold
250 shape and size of type chamber of tool.What the glass of softening state can be adapted to first under the effect of gravity in preform process fills up type
Chamber 250 ensure that the shape and size of glass in the range of type chamber 250 is limited.If the actual volume for softening state glass is big
In the volume of type chamber 250, then extra glass can be overflowed from type chamber 250 flows into spill cavity 240, avoids upper mold in preform process
Mold 210 helps to reduce impression on glass curve to the excessive compression of glass.Glass is completed by pneumatically molding after preforming
The final shaping of glass realizes the extrusion forming to glass using the differential pressure of atmospheric pressure between glass upper and lower surface.In the process
The size for closing at type chamber already have accounted for glass plate 100 in the swollen factor of the receipts of molten condition and completed state, optimal shape
Be exactly under state type chamber 250 volume it is just suitable with volume after glass melting, then upper die mold 210 and melten glass blanket 100
Between only simple contact relation, and there is no mutual pressure between person, therefore 210 pairs of softening state glass plates of upper die mold
100 not will cause extruding, even if being contacted, the glass of molten condition can also be moved because of flowing, reply glass surface
It is smooth, there is no impression caused by upper die mold 210 in the glass plate 100 after making sizing, while upper die mold 210 also ensures
3D bend glass curve form and dimensional accuracy, least ideal situation are exactly that the volume of type chamber is less than the body of glass after melting
Product then softens state glass under the constraint of type chamber 250 and enters in spill cavity 240, and upper die mold 210 still will not be to the glass of melting
Glass causes to squeeze, and therefore, glass surface not will form the extruding due to upper die mold and the impression that is formed in forming process, at
3D bend glass after type is without polishing to curved surface, being polished.Although may in spill cavity 240 molding extra glass
Glass, but the extra glass of glass edge can be by the removal that cuts or polish in later period, compared to polishing, polish entire glass
The work of glass curved surface is easier to operate to, and processing efficiency and yield rate are also higher, more saving processing cost.In addition, glass plate
Excessive gas between 100 and lower die mold 220 can be discharged from gas passage 230 or enter spill cavity 240, can be to avoid
Occur bulge or bubble on glass.
A kind of dynamic molding machine of hot gas, as shown in Fig. 2, being carried out including molding die 200 and pneumatic sizing station 300
The two is needed to cooperate when the pneumatic sizing of glass plate 100.
As shown in figure 4, molding die 200 includes upper die mold 210 and lower die mold 220, upper die mold 210 and lower die mould
Have and is respectively arranged with forming surface in 220 surfaces opposite to each other, two moldings when upper die mold 210 and lower die mold 220 mold
Shape forming cavity 250 between face.Wherein the forming surface of lower die mold 220 and upper die mold 210 primarily serves determining glass plate 100
The effect of curve form and size.Distance, face between the shape of the forming surface of type chamber 250, size and upper and lower two forming surfaces
Face finish etc. will make the size of the glass molded meet the design size of 3D bend glass finished product.The edge of type chamber 250 is set
It is equipped with spill cavity 240, the spill cavity 240 is connected to type chamber 250.Guarantee after molding, the glass for softening state can be in type chamber
In 250 pre-setting be required shape, it is understood that there may be extra glass will flow into spill cavity 240, upper die mold 210 will not be to softening
The glass plate 100 of state causes the extruding of transition, to avoid the generation of impression.It is significant to note that type chamber 250 here
Specific size need to consider the shrinking percentage of glass itself, it should determine its specific size according to the principle of mold design, thus
Guarantee that the curve form that glass is produced under the constraint of type chamber 250 and dimensional accuracy can satisfy requirement.
Gas passage 230 is offered on lower die mold 220, outside 230 communicate-type chamber 250 of gas passage and molding die 200
Boundary, to realize the pumping for penetrating lower die mold 220.Gas passage 230 is preferably also opened up on upper die mold 210, is connected to
Type chamber 250 and molding die 200 are extraneous, to realize the inflation for penetrating upper die mold 210.Gas passage 230 is comparatively fine, size
Less than 2mm, guarantee that glass will not enter gas passage 230, the edge of gas passage 230 will not be on 100 surface of glass plate
It leaves a trace.
Pneumatic sizing station 300 for realizing pumping, molding die 200 and wherein the heating of glass plate 100 and on
The locking of mould mold 210 and the relative position under molding state of lower die mold 220.Pneumatic sizing station 300 include bottom plate 310,
It is fixed in the lower heating plate 320 of 310 upper surface of bottom plate, the upper heating plate 330 that 320 top of lower heating plate is set, adds in driving
Power device 350 that hot plate 330 slides up and down, the upper plate 340 for supporting power device 350 and the gas with lower die mold 220
The air extractor (not shown) that channel 230 is connected to.Complete preforming molding die 200 be sent to heating plate 330 with
When between lower heating plate 320, drives upper heating plate 330 to move down using power device 350 and push down upper die mold 210, at this time
Upper heating plate 330 and lower heating plate 320 clamp molding die 200 and lock it in molding state, at the same time upper heating plate 330
It generates heat with lower heating plate 320, hot briquetting mold 200 and glass plate therein 100 make glass plate 100 keep softening
The pumping of state air extractor, forms differential pressure of atmospheric pressure between the upper and lower surface of glass plate 100, changes its form by air pressure.
It is preferred that pneumatically sizing station 300 also cooperates the setting air charging system of the gas passage 230 on upper die mold 210 (in figure
It is not shown), the gas passage 230 being arranged on air charging system and upper die mold 210 is connected to, to realize while being evacuated
It is inflated above glass.
When in order to preferably guarantee that each molding die 200 is moved to pneumatic sizing station 300, air extractor and air charging system
The air-tightness being connect with molding die 200.Lower die mold is connected to it is preferred that being respectively arranged on bottom plate 310 and lower heating plate 320
The exhaust passage 370 of 220 gas passage 230, air extractor are connected to by exhaust passage 370 with gas passage 230.Add upper
The inlet channel 360 being connected to the gas passage 230 of upper die mold 210 is provided on hot plate 330, air charging system is logical by air inlet
Road 360 is connected to gas passage 230.In this way when guaranteeing that gas passage is connected to the sealing of air charging system and air extractor, only
Molding die 200 is moved to suitable position it is ensured that exhaust passage 370(inlet channel 360) and gas passage 230
Alignment, connection are only close to can be realized sealing by heating plate and plane on molding die 200 and plane, are helped to realize
Quickly, the production of scale improves production efficiency.
A kind of dynamic formation system of hot gas, as shown in Fig. 2, including workbench 400, mould shifting device 500, heating device, die sinking
Device, mold closing mechanism and above-mentioned hot gas move molding machine.
Workbench 400 includes Mould operation area 410, warm operation area 420, preforming work area 430, work of being pneumatically formed
Area 440, slow cooling workspace 450 and cooling work area 460.Mould operation area 410, warm operation area 420, preforming work area
430, pneumatically sizing workspace 440, slow cooling workspace 450 and cooling work area 460 are set gradually.It is preferably formed as ring structure
Workbench 400 makes to connect after cooling work area 460 with Mould operation area 410, in order to which the circulation of processing and forming carries out, has
Help improve processing efficiency.
The feeding operation of glass is carried out in Mould operation area 410, glass plate 100 is placed on lower die mold 220, together
When be also the position for taking out glass plate 100 after cooling from molding die 200.Die-sinking device is arranged in Mould operation area
410, die-sinking device removes upper die mold 210, can interfere being placed and taken out for glass plate 100 to avoid upper die mold 210.
Die-sinking device can pass through jack-up upper mold using the mobile upper die mold 210 of manipulator, or using simple linear displacement device
The mode of mold 210 realizes die sinking.
Heating device is arranged in warm operation area 420, and glass plate 100 is heated to softening point in warm operation area 420,
Then the step of collapsing into and be bonded with lower die mold 220, completing S2 in the above method.Heating device can be filled using electric heating
It sets, infrared heating device etc..
Mold closing mechanism setting in preforming work area 430, the mobile upper die mold 210 of mold closing mechanism make upper die mold 210 with
The step of lower die mold 220 molds, and completes S2 in the above method.Mold closing mechanism can be using the mobile upper die mold 210 of manipulator.
Support device is set between preferred upper die mold 210 and lower die mold 220, upper die mold 210 is supported on lower die mold 220
Top and position are higher than height when molding, guarantee in feeding and warm, upper die mold 210 and lower die mold 220 it
Between there are certain space, guarantee that upper die mold 210 does not influence feeding and will not be in preheating zone to the glass plate 100 hankered in advance
It causes to oppress, while can guarantee that same upper die mold 210 is synchronous with lower die mold 220 and be moved on workbench 400.Support dress
Cylinder, hydraulic cylinder can also be used using elastic construction support upper die mold 210 such as helical spring, spring leaf by setting
Equal power device 350.At this point, mold closing mechanism can also be passed through under compressing upper die mold 210 using simple linear displacement device
The mode of shifting realizes molding.
The slow cooling of molding die 200 is completed in slow cooling workspace 450.Molding die 200 is completed in cooling work area 460
It is cooling.
Mould shifting device 500 carry out glass plate 100 molding when, by molding die 200 and wherein glass plate 100 from
Mould operation area 410 is successively moved to each workspace, completes each step in forming process.Mould shifting device 500 can be adopted
With multiple linear drive apparatus, movement is realized by way of pushing forming module；Can also using conveyer belt or push with
The movement that the mode combined carries out molding die 200 is transmitted, manipulator also can be set, carries out shifting formwork operation.
It is preferred that the setting discharging buffer area 480 between cooling work area 460 and slow cooling workspace 450, in Mould operation area
Feed surge area 470 is provided between 410 and preheating zone.Enable molding die 200 in feed surge area 470 and discharging buffering
Area 480 is temporary, can play the role of coordinating different production steps, helps to ensure that circulation production.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (10)
1. a kind of hot air forming method, which is characterized in that at the time of molding, the shape and size specification by type chamber (250) is soft
The shape and size and form and dimensional precision for changing state glass plate (100), make the surface shape and ruler of glass after molding
Very little and form and dimensional precision meets the requirement of the design size, shape of finished product 3D bend glass；It is arranged communicate-type chamber (250)
Spill cavity (240), when soften state glass volume be greater than type chamber (250) volume when, extra softening state glass enters
It is kept in spill cavity (240).
2. a kind of hot air forming method as described in claim 1, it is characterised in that: the following steps are included:
S1 preheats the glass plate (100) of plain film in lower die mold (220), reaches softening point；
S2 upper die mold (210) and lower die mold (220) molding shape forming cavity (250), to glass plate (100) carry out in advance at
Type；
S3 heating glass plate (100) is simultaneously evacuated glass plate (100) lower section through lower die mold (220), makes glass
The pressure of the upper surface of blanket (100) is greater than the pressure of lower surface, squeezes glass plate (100) and carries out shaping；
S4 glass plate (100) and molding die (200) slow cooling are simultaneously cooled to room temperature.
3. hot air forming method according to claim 2, it is characterised in that: also while through upper die mold in S3 step
(210) to being inflated above glass plate (100).
4. a kind of hot gas moves molding machine, including molding die (200), molding die (200) includes upper die mold (210) under
Forming surface, upper mold are respectively arranged in mould mold (220), upper die mold (210) and lower die mold (220) surfaces opposite to each other
Shape forming cavity (250) between two forming surfaces when mold (210) and lower die mold (220) mold, it is characterised in that: type chamber
(250) spacing between the curve form of forming surface, size and upper and lower two forming surfaces makes glass after molding meet 3D song
The design size requirement of surface glass, the edge of type chamber (250) are provided with spill cavity (240), the spill cavity (240) and type chamber
(250) it is connected to；The gas passage (230) through lower die mold (220) is offered in the forming surface of lower die mold (220)；Upper mold
After mold (210) and lower die mold (220) molding, type chamber (250) is only capable of being in communication with the outside by gas passage (230)；Hot gas
Dynamic molding machine further includes pneumatic sizing station (300), and pneumatically sizing station (300) includes bottom plate (310), is fixed in bottom plate
(310) the lower heating plate (320) of upper surface, upper heating plate (330) above lower heating plate (320) is set, is heated in driving
The upper plate (340) and connection lower die mold of power device (350), support power device (350) that plate (330) slides up and down
(220) air extractor of gas passage (230) on.
5. hot gas according to claim 4 moves molding machine, it is characterised in that: on bottom plate (310) and lower heating plate (320)
The exhaust passage (370) of gas passage (230) in connection lower die mold (220) is had, air extractor passes through exhaust passage
(370) it is connected to gas passage (230).
6. hot gas according to claim 4 moves molding machine, it is characterised in that: opened in the forming surface of upper die mold (210)
Equipped with the gas passage (230) for running through upper die mold (210).
7. hot gas according to claim 6 moves molding machine, it is characterised in that: be provided on upper heating plate (330) with it is upper
The inlet channel (360) that gas passage (230) is connected on mould mold (210), air charging system leads to inlet channel (360) and gas is logical
Road (230) connection.
8. a kind of hot gas moves any one in formation system, including workbench (400), mould shifting device (500) and claim 4-7
Hot gas described in moves molding machine, and workbench (400) includes Mould operation area (410), the warm operation area set gradually
(420), preforming work area (430), pneumatically sizing workspace (440), slow cooling workspace (450) and cooling work area (460),
Mould operation area (410) is provided with die-sinking device, and warm operation area (420) are provided with hot briquetting mold (200) and glass thereon
The heating device of glass blanket (100), preforming work area (430) are provided with for upper die mold (210) and lower die mold (220)
The mold closing mechanism of molding, station (300) setting of being pneumatically formed is in pneumatically sizing workspace (440)；Mould shifting device (500) will form
Mold (200) workspace Cong Shangyi is sent to subsequent work area.
9. hot gas according to claim 8 moves formation system, it is characterised in that: workbench (400) circularizes setting, cooling
Workspace (460) is connected to Mould operation area (410), and mould shifting device (500) is by the molding die on cooling work area (460)
(200) Mould operation area (410) are sent to.
10. hot gas according to claim 9 moves formation system, it is characterised in that: cooling work area (460) and pneumatic sizing
It is additionally provided with discharging buffer area (480) between workspace (440), is provided with charging between Mould operation area (410) and preheating zone
Buffer area (470).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910007093.3A CN109836033A (en) | 2019-01-04 | 2019-01-04 | Hot air forming method, hot gas move molding machine and hot gas moves formation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910007093.3A CN109836033A (en) | 2019-01-04 | 2019-01-04 | Hot air forming method, hot gas move molding machine and hot gas moves formation system |
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Application publication date: 20190604 |