CN117209140A - Glass molding device and glass molding method - Google Patents
Glass molding device and glass molding method Download PDFInfo
- Publication number
- CN117209140A CN117209140A CN202311075871.5A CN202311075871A CN117209140A CN 117209140 A CN117209140 A CN 117209140A CN 202311075871 A CN202311075871 A CN 202311075871A CN 117209140 A CN117209140 A CN 117209140A
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- glass
- assembly
- thickness
- outlet channel
- forming apparatus
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- 239000011521 glass Substances 0.000 title claims abstract description 156
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000000465 moulding Methods 0.000 title claims description 10
- 239000007788 liquid Substances 0.000 claims abstract description 67
- 238000007493 shaping process Methods 0.000 claims abstract description 42
- 238000007496 glass forming Methods 0.000 claims abstract description 33
- 238000010438 heat treatment Methods 0.000 claims description 38
- 239000006060 molten glass Substances 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 15
- 230000000712 assembly Effects 0.000 claims description 14
- 238000000429 assembly Methods 0.000 claims description 14
- 238000013459 approach Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000002241 glass-ceramic Substances 0.000 description 40
- 239000002585 base Substances 0.000 description 24
- 238000013519 translation Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 4
- 229910010271 silicon carbide Inorganic materials 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004513 sizing Methods 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- FUJCRWPEOMXPAD-UHFFFAOYSA-N lithium oxide Chemical compound [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 2
- 229910001947 lithium oxide Inorganic materials 0.000 description 2
- 239000010446 mirabilite Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052810 boron oxide Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 229910001392 phosphorus oxide Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- VSAISIQCTGDGPU-UHFFFAOYSA-N tetraphosphorus hexaoxide Chemical compound O1P(O2)OP3OP1OP2O3 VSAISIQCTGDGPU-UHFFFAOYSA-N 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Landscapes
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The application provides a glass forming device and a glass forming method, wherein the glass forming device comprises: the shaping chamber assembly comprises a shaping shell structure, the shaping shell structure is provided with a glass liquid outlet channel, and the width of the glass liquid outlet channel can be adjusted to adjust the thickness of glass. The technical scheme of the application effectively solves the problem that the glass liquid outlet channel is not adjustable during glass production.
Description
Technical Field
The application relates to the technical field of glass forming, in particular to a glass forming device and a glass forming method.
Background
The prior production methods of glass ceramics mainly comprise a joint casting method and a slit pull-down and pair rolling method. The thickness of the glass ceramics obtained by the combined casting method is far greater than the final thickness, and the final thickness is obtained by cutting, grinding and polishing of post-processing, so that the problems of serious waste, low efficiency and high production cost exist. The width of the glass liquid outlet channel of the slot down-draw and twin-roll pressing method is not adjustable, and the thinning treatment is carried out by increasing the pressure of the rolls and the number of the sets of the rolls, so that the surface defects such as roll marks, fracturing and the like on the surface of the glass ceramics are easily caused by the mode.
Disclosure of Invention
The application provides a glass forming device and a glass forming method, which are used for solving the problem that a glass liquid outlet channel is not adjustable during glass production.
According to the present application, there is provided a glass forming apparatus comprising: the shaping chamber assembly comprises a shaping shell structure, the shaping shell structure is provided with a glass liquid outlet channel, and the width of the glass liquid outlet channel can be adjusted to adjust the thickness of glass.
In some embodiments, the shaping shell structure comprises a shaping base and a shaping shell cover, the shaping shell cover is arranged above the shaping base, the shaping base comprises a fixed seat and a movable seat, a glass liquid outlet channel is formed between the movable seat and the fixed seat, and the movable seat can move along a direction close to the fixed seat and away from the fixed seat.
In some embodiments, the glass forming apparatus further comprises a control assembly, a mount assembly, and a drive assembly secured to the mount assembly, the movable mount movably mounted to the mount assembly, the drive assembly electrically connected to the control assembly.
In some embodiments, the drive assembly comprises a drive motor and a drive screw, the movable seat has a threaded bore that mates with the drive screw, a first end of the drive screw is fixedly connected to an output end of the drive motor, and a second end of the drive screw is mounted within the threaded bore; or the driving component is hydraulically driven; or the driving component is pneumatically driven; or the driving component is an electric push rod.
In some embodiments, the glass forming apparatus further includes a pair of roller assemblies disposed in correspondence with the molten glass outlet channels, the pair of roller assemblies being electrically connected to the control assembly.
In some embodiments, the glass forming apparatus further comprises a glass thickness detection assembly mounted on a side of the pair of roller assemblies remote from the molten glass outlet channel.
In some embodiments, the glass thickness detection assembly and the counter roller assembly are both electrically connected to the control assembly, and the control assembly controls the driving assembly to drive the movable seat to approach the fixed seat when the detected thickness difference of the glass thickness detection assembly is greater than 30% of the target thickness of the glass.
In some embodiments, the width L of the molten glass outlet channel satisfies the following equation:
L＝X 2 *L 1 /X 1 ；
ΔL＝L 1 -L；
X 1 the current average out-of-tolerance thickness;
L 1 the width of the current glass liquid outlet channel;
X 2 is the target thickness;
Δl adjustment amount.
In some embodiments, the glass thickness detection assembly and the counter roller assembly are both electrically connected to the control assembly, and the control assembly controls the counter roller assembly to increase the pressure when the detected thickness difference of the glass thickness detection assembly is greater than the target thickness of the glass and less than 30%.
In some embodiments, the glass forming apparatus further includes a first heating assembly disposed between the molten glass outlet channel and the pair of roller assemblies, the first heating assembly being electrically connected to the control assembly.
In some embodiments, the first heating assembly heats up when the local thickness of the glass exceeds and/or is significantly greater than a predetermined value.
In some embodiments, the side of the fixed seat facing the movable seat is a first inclined plane, the side of the movable seat facing the fixed seat is a second inclined plane, and the lower ends of the first inclined plane and the second inclined plane are connected with the upper end of the glass liquid outlet channel.
In some embodiments, the shaped housing shell is provided with a bleed flow channel and a pressure compensating channel.
In some embodiments, the sizing chamber assembly further comprises a second heating structure disposed at least partially inside the sizing chamber assembly.
According to another aspect of the present application, there is also provided a glass molding method, using the above glass molding apparatus, the glass molding method comprising the steps of:
determining a target thickness of the glass;
adjusting the gap of the glass liquid outlet channel according to the target thickness of the glass;
adjusting the pressure of the counter roller assembly according to the target thickness of the glass;
producing glass of a target thickness.
In some embodiments, the glass forming method further includes detecting a glass of a target thickness produced and transmitting the detection result to a control assembly, the control assembly controlling the width of the glass liquid outlet channel and the pressure of the press roll assembly according to the detection result of the glass thickness.
By applying the technical scheme of the application, the thickness of the glass is adjusted by adjusting the width of the glass liquid outlet channel. The width of the glass liquid outlet channel is adjusted, so that the control of the thickness of the glass is more accurate, and the defects of roll marks, fracturing and the like of the glass in subsequent processing are not easy to occur. The technical scheme of the application effectively solves the problem that the glass liquid outlet channel is not adjustable during glass production.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a glass forming apparatus according to a first embodiment of the present application;
FIG. 2 shows a schematic diagram of a drive assembly according to a second embodiment of the application;
FIG. 3 is a schematic view showing the structure of a mount assembly according to a third embodiment of the present application;
fig. 4 shows a schematic top view of a mount assembly according to a third embodiment of the present application.
Reference numerals illustrate:
10. a sizing chamber assembly; 11. shaping a shell structure; 111. shaping a base; 1111. a fixing seat; 1112. a movable seat; 1113. a glass liquid outlet channel; 112. shaping the shell cover; 1121. diffusing the diversion channel; 1122. a pressure compensation channel; 12. a second heating structure; 20. a control assembly; 30. a mounting base assembly; 40. a drive assembly; 41. a driving motor; 42. driving a screw; 50. a pair roller assembly; 60. a glass thickness detection assembly; 70. a first heating assembly.
Detailed Description
Embodiments of the present application are described in further detail below with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the application and are not intended to limit the scope of the application, which may be embodied in many different forms and not limited to the specific embodiments disclosed herein, but rather to include all technical solutions falling within the scope of the claims.
These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments should be construed as exemplary only and not limiting unless otherwise specifically stated.
In the description of the present application, unless otherwise indicated, the meaning of "plurality of" means greater than or equal to two; the terms "upper," "lower," "left," "right," "inner," "outer," and the like are merely used for convenience in describing the present application and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present application. When the absolute position of the object to be described is changed, the relative positional relationship may be changed accordingly.
Furthermore, the use of the terms first, second, and the like in the present application are not used for any order, quantity, or importance, but rather are used for distinguishing between different parts. The "vertical" is not strictly vertical but is within the allowable error range. "parallel" is not strictly parallel but is within the tolerance of the error. The word "comprising" or "comprises" and the like means that elements preceding the word encompass the elements recited after the word, and not exclude the possibility of also encompassing other elements.
It should also be noted that, in the description of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present application can be understood as appropriate by those of ordinary skill in the art. When a particular device is described as being located between a first device and a second device, there may or may not be an intervening device between the particular device and either the first device or the second device.
All terms used herein have the same meaning as understood by one of ordinary skill in the art to which the present application pertains, unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and apparatus should be considered part of the specification.
As shown in fig. 1, the glass molding apparatus according to the first embodiment includes: a styling chamber assembly 10. The forming chamber assembly 10 includes a forming housing structure 11, the forming housing structure 11 having a glass liquid outlet channel 1113, and the width of the glass liquid outlet channel 1113 is adjustable to adjust the thickness of the glass.
By applying the technical scheme of the first embodiment, the width of the glass liquid outlet channel 1113 is adjusted so as to adjust the thickness of the glass. The width of the glass liquid outlet channel 1113 is adjusted, so that the control of the thickness of the glass is more accurate, and the defects of roll marks, fracturing and the like of the glass in subsequent processing are not easy to occur. The technical scheme of the embodiment effectively solves the problem that the glass liquid outlet channel 1113 is not adjustable during glass production.
The width of the glass liquid outlet channel 1113 may be adjusted in the X direction, the width of the glass liquid outlet channel 1113 in the X positive direction may be increased, and the width of the glass liquid outlet channel 1113 in the X negative direction may be decreased.
The glass of the first embodiment is microcrystalline glass and consists of, by mass, 68% -75% of silicon dioxide, 6% -9% of aluminum oxide, 1% -4% of phosphorus oxide, 2% -7% of zirconium oxide, 0.1% -3% of sodium oxide, 8% -13% of lithium oxide, 0.1% -3% of boron oxide and 0.1% -2% of tin oxide.
As shown in fig. 1, in the first embodiment, the shaping housing structure 11 includes a shaping base 111 and a shaping housing cover 112, the shaping housing cover 112 is arranged above the shaping base 111, the shaping base 111 includes a fixing base 1111 and a moving base 1112, a glass liquid outlet channel 1113 is formed between the moving base 1112 and the fixing base 1111, and the moving base 1112 can move along a direction approaching to the fixing base 1111 and a direction separating from the fixing base 1111. The shaping cover 112 is arranged above the shaping base 111 to prevent impurities from entering, and simultaneously prevent the heat loss of the molten glass. A glass liquid outlet channel 1113 is formed between the movable seat 1112 and the fixed seat 1111, the fixed seat 1111 is fixed, and the movable seat 1112 can move along the direction close to the fixed seat 1111 and away from the fixed seat 1111 so as to regulate and control the width of the glass liquid outlet channel 1113. The movable base 1112 is moved until the width of the glass liquid outlet channel 1113 meets the required requirements, according to the required thickness of the glass ceramic.
The thickness of the glass ceramics is adjusted to 110% -130% of the final glass ceramics by adjusting the width of the glass liquid outlet channel 1113, the glass ceramics can be thinned once by maximally adjusting the width of the glass liquid outlet channel 1113, and the thickness of the thinned glass ceramics is 0.77-0.9 mm. Since the microcrystalline glass containing lithium oxide can erode many metals at high temperature, the shaping base 111 can be made of high-zirconium bricks coated with platinum.
It should be further noted that, the left side of the shaping shell structure 11 is provided with a gate, the opening of the gate can control the inflow and the flow rate of the glass liquid, and meanwhile, the gate can be closed to block the inflow of the glass liquid, so that the maintenance of the production line and the replacement of the shaping brick (the shaping base 111) can be facilitated, and the silicon content in the glass liquid is more, so that the material of the gate can be selected from siliceous materials such as fused quartz for reducing the pollution to the glass liquid.
As shown in fig. 1, in the technical solution of the first embodiment, the glass ceramic forming apparatus further includes a control assembly 20, a mounting seat assembly 30, and a driving assembly 40, wherein the driving assembly 40 is fixed on the mounting seat assembly 30, the movable seat 1112 is movably mounted on the mounting seat assembly 30, and the driving assembly 40 is electrically connected with the control assembly 20. The driving component 40 is fixed on the mounting seat component 30 to provide driving force for the movement of the movable seat 1112, the movable seat 1112 can move along the positive and negative directions of X on the mounting seat component 30, the driving component 40 is electrically connected with the control component 20, the control component 20 controls the driving component 40 to provide driving force for the movable seat 1112 according to the required thickness of glass ceramics, and meanwhile, the electric connection enables signal transmission to be faster and control effect to be better.
It should be noted that, the control component 20 may be a DCS intelligent control system, which has the advantages of high reliability, high flexibility and multiple control functions.
As shown in fig. 1, in the first embodiment, the driving assembly 40 includes a driving motor 41 and a driving screw 42, the movable seat 1112 has a threaded hole matched with the driving screw 42, a first end of the driving screw 42 is fixedly connected to an output end of the driving motor 41, and a second end of the driving screw 42 is installed in the threaded hole. The movable seat 1112 is provided with a threaded hole matched with the driving screw 42, the driving screw 42 is fixedly connected with the movable seat 1112 through the threaded hole matched with the driving screw 42, a first end of the driving screw 42 is fixedly connected with an output end of the driving motor 41, driving force from the driving motor 41 is received, a second end of the driving screw 42 is installed in the threaded hole, the driving motor 41 provides driving force for rotation of the driving screw 42, rotation of the driving screw 42 is converted into translation of the movable seat 1112, and the movable seat 1112 is driven to move. As other embodiments, the drive assembly 40 may be hydraulically driven; or the drive assembly 40 is pneumatically driven; or the driving component 40 is an electric push rod, and all three driving modes can drive the movable seat 1112 to move stably.
It should be noted that, the sliding rail and the sliding groove are matched between the moving seat 1112 and the mounting seat assembly 30. The slide rail and the slide groove can reduce the resistance of the movable seat 1112 when moving on the mounting seat assembly 30, and can prevent the movable seat 1112 from deflecting angularly when moving, and meanwhile, the slide rail and the slide groove can be provided with accurate distance marks so that the width of the molten glass outlet channel 1113 is easy to measure.
As shown in fig. 1, in the embodiment of the first embodiment, the glass ceramic forming apparatus further includes a pair of roller assemblies 50, the pair of roller assemblies 50 are disposed corresponding to the molten glass outlet channel 1113, and the pair of roller assemblies 50 are electrically connected to the control assembly 20. The counter roller assembly 50 is arranged below the glass liquid outlet channel 1113, can perform secondary thinning treatment on the glass ceramics by pressing, thin the thickness of the glass ceramics to 0.7mm, and meanwhile, the counter roller assembly 50 is a cooling roller, so that the glass ceramics can be rapidly cooled, and the problem of sticking to the roller caused by overhigh temperature is avoided. The counter roller assembly 50 is electrically connected to the control assembly 20, and the pressure of the counter roller assembly 50 during pressing is controlled by the control assembly 20.
It should be noted that, since the glass-ceramic is subjected to the maximized primary thinning treatment by the glass-ceramic liquid outlet channel 1113, the twin-roll pressure of the twin-roll assembly 50 is reduced, and the number of twin-roll sets is also reduced, so that surface defects such as roll marks and cracks are not likely to occur on the surface of the glass-ceramic during the secondary thinning.
As shown in fig. 1, in the embodiment of the first embodiment, the glass ceramic forming apparatus further includes a glass thickness detecting assembly 60, and the glass thickness detecting assembly 60 is installed on a side of the pair roller assembly 50 away from the glass liquid outlet channel 1113. The glass thickness detecting assembly 60 is installed at a side of the pair roller assembly 50 away from the glass liquid outlet channel 1113, and can detect the thickness of the glass ceramic after the second thinning process of the pair roller assembly 50.
As shown in fig. 1, in the first embodiment, the glass thickness detecting component 60 and the driving component 40 are electrically connected to the control component 20, and when the detected thickness difference of the glass thickness detecting component 60 is greater than 30% of the target thickness of the glass, the control component 20 controls the driving component 40 to drive the movable seat 1112 to be close to the fixed seat 1111. When the detected thickness difference of the glass thickness detecting component 60 is greater than 30% of the target thickness of glass, at this time, the thickness of the glass ceramics is not satisfied and is not affected in place by one-time thinning, the glass thickness detecting component 60 converts the detected result into an electric signal and transmits the electric signal to the control component 20, and the control component 20 controls the driving component 40 electrically connected with the control component to move the movable seat 1112 so as to adjust the width of the glass liquid outlet channel 1113 within a proper width.
In the technical solution of the first embodiment, the width L of the glass liquid outlet channel 1113 satisfies the following formula:
L＝X 2 *L 1 /X 1 ；
ΔL＝L 1 -L；
X 1 the current average out-of-tolerance thickness;
L 1 is the width of the current molten glass outlet channel 1113;
X 2 is the target thickness;
Δl adjustment amount.
The above formula gives a calculation method of the width adjustment amount of the glass liquid outlet channel 1113, and the control component 20 controls the driving component 40 to move according to the calculation result of the above formula (the width adjustment amount of the glass liquid outlet channel 1113), so as to adjust the width of the glass liquid outlet channel 1113, so that the thickness of the glass ceramic meets the required requirement.
As shown in fig. 1, in the first embodiment, the glass thickness detecting assembly 60 and the counter roller assembly 50 are electrically connected to the control assembly 20, and when the detected thickness difference of the glass thickness detecting assembly 60 is greater than the target thickness of the glass and less than 30%, the control assembly 20 controls the counter roller assembly 50 to increase the pressure. When the detected thickness difference of the glass thickness detecting component 60 is larger than the target thickness of glass and smaller than 30%, the microcrystalline glass thickness is not satisfied and is not affected in place by the secondary thinning, the glass thickness detecting component 60 converts the detected result into an electric signal and transmits the electric signal to the control component 20, and the control component 20 controls the counter roller component 50 to increase the pressure to secondarily thin the microcrystalline glass until the detected result satisfies the requirement.
As shown in fig. 1, in the embodiment of the first embodiment, the glass ceramic forming apparatus further includes a first heating assembly 70, where the first heating assembly 70 is disposed between the glass liquid outlet channel 1113 and the counter roller assembly 50, and the first heating assembly 70 is electrically connected to the control assembly 20. Since the glass ceramics is sensitive to temperature change, when the glass ceramics subjected to primary thinning enters the roller assembly 50 for pressing, the transverse temperature of the glass ceramics has a temperature difference, so that the plasticity of the glass ceramics is inconsistent, and under the same pressing action, the transverse interval deformation of the glass ceramics is different, so that the transverse interval thinning degree of the glass ceramics is different, and the thickness difference is caused. The first heating assembly 70 is disposed between the glass liquid outlet channel 1113 and the pair roller assembly 50 to heat the thinned glass ceramic, so as to eliminate thickness difference caused by lateral temperature difference of the glass ceramic. The first heating assembly 70 is electrically connected with the control assembly 20, and the temperature rising condition of the first heating assembly 70 is controlled by the control assembly 20.
It should be noted that, the first heating assembly 70 is internally provided with a plurality of independent sets of transverse heating zones along the moving direction of the glass, and the transverse heating zones are provided with 7 to 11 zones, preferably odd zones therein. The partition mode can well eliminate the transverse temperature difference of the glass ceramics, and the glass ceramics with the transverse temperature difference can be easily obtained when being pressed by the roller assembly 50 through the heating of the first heating assembly 70.
In the embodiment of the first embodiment, the first heating member 70 heats up when the local thickness of the glass exceeds the predetermined value. The first heating assembly 70 is electrically connected with the control assembly 20, when the glass thickness detection assembly 60 detects that the glass ceramic has the average thickness of the whole plate meeting the requirement, but the local thickness has the problem that the data obtained by subtracting the minimum value (the range) from the maximum value of the thickness exceeds the allowable range (the preset value), the control assembly 20 controls the corresponding partition of the first heating assembly 70 to carry out heat adjustment, and the transverse temperature is controlled to 900+/-1 ℃.
It should be noted that, the lateral heating zones of the first heating assembly 70 are multiple groups of independent, and the control assembly 20 can precisely regulate and control the lateral heating zones of the first heating assembly 70 according to the lateral temperature difference of the glass ceramics so as to eliminate the lateral temperature difference; meanwhile, the temperature adjustment of the transverse heating area can also be manual adjustment, a technician performs related process control to eliminate transverse temperature difference, the thickness of the final glass ceramics is kept at 0.7+/-0.04 mm, and then the final glass ceramics is sent into an annealing furnace to be annealed, so that high-quality glass ceramics with high surface quality is obtained.
As shown in fig. 1, in the first embodiment, the side surface of the fixed seat 1111 facing the movable seat 1112 is a first inclined surface, the side surface of the movable seat 1112 facing the fixed seat 1111 is a second inclined surface, and the lower ends of the first inclined surface and the second inclined surface are connected to the upper end of the molten glass outlet channel 1113. Because the alkali content of the glass ceramics is higher, the arrangement of the first inclined plane and the second inclined plane can accelerate the outflow of glass liquid to reduce the corrosion effect of the glass ceramics, and has the beneficial effect of enhancing the service cycle of the fixing seat 1111.
It should be noted that, the movable base 1112 has a sidewall, and the sidewall is higher than the molten glass, so that the molten glass is not easy to flow out from between the shaped housing cover 112 and the movable base 1112, and the sidewall of the movable base 1112 can move relative to the shaped housing cover 112 to adjust the width of the glass liquid outlet channel 1113.
As shown in fig. 1, in the first embodiment, the shaped housing cover 112 is provided with a diffusing guide passage 1121 and a pressure compensating passage 1122. Since the alkali content in the molten glass is high and mirabilite is used as a clarifier for eliminating bubbles generated when the molten glass flows, volatile alkali and coagulated sulfate exist in the space between the shaping cover 112 and the shaping base 111. The top of the shaping shell cover 112 is provided with the diffusing guide passage 1121 which can guide the airflow to remove volatile matters, so that the influence of mirabilite bubbles on the quality of glass liquid caused by falling of the coagulated sulfate into the glass liquid is effectively avoided. When the air flow is guided by the diffusing guide passage 1121, negative pressure is easily formed in the space (in the space between the shaping housing cover 112 and the shaping base 111), and foreign matters such as external dust enter the space through the diffusing guide passage 1121 to pollute glass liquid, so that the side surface of the shaping housing cover 112 is provided with the pressure compensation passage 1122 to maintain positive pressure in the space, and hot nitrogen can be introduced to maintain positive pressure, so that the temperature in the space is not influenced by the hot nitrogen, and the property of the glass liquid is not influenced by the inert gas.
It should be noted that, a pressure monitor may be disposed in the space to detect the pressure in the space, the pressure detector and the pressure compensation channel 1122 may be connected to the control assembly 20, and once the pressure detector detects the negative pressure state, a signal is transmitted to the control assembly 20, and the control assembly 20 controls the pressure compensation channel 1122 to introduce hot nitrogen gas to maintain the positive pressure.
It should be further noted that, the diffusing guide passage 1121 may be designed as a passage with a bent pipe, so that dust may be effectively prevented from falling directly into the passage.
As shown in fig. 1, in the solution of the first embodiment, the shaping chamber assembly 10 further includes a second heating structure 12, where the second heating structure 12 is at least partially disposed inside the shaping chamber assembly 10. Because the viscosity of the glass liquid is obviously affected by temperature, the viscosity of the glass liquid is not greatly changed at high temperature, the viscosity change is gradually increased along with the temperature reduction, and the viscosity of the glass liquid is sharply increased when the glass liquid reaches low temperature. Providing the second heating structure 12 at least partially within the shaping chamber assembly 10 maintains the temperature within the space within a suitable range to reduce viscosity changes in the molten glass.
It should be noted that, a temperature detector may be disposed in the space, where the temperature detector and the second heating structure 12 are connected to the control component 20, and once the temperature detector detects that the temperature in the space is not within 1100±50 ℃, a signal is sent to the control component 20, and the control component 20 controls the second heating structure 12 to raise the temperature until the temperature detected by the temperature detector meets the requirement.
It should be further noted that the second heating structure 12 may be a silicon carbide rod, which is a nonmetallic high-temperature electric heating element, and a silicon carbide rod with a suitable diameter is selected to heat according to a required temperature, and a surface coating of the silicon carbide rod prevents the silicon carbide rod from cracking.
As shown in fig. 2, the difference between the technical solution of the second embodiment and the first embodiment is that the driving assembly 40 includes multiple groups of anchor pull structures and a servo motor, the anchor pull structures include anchor rods, the first ends of the anchor rods are fixed with the movable seat 1112, the second ends of the anchor rods are fixed with the servo motor, the servo motor is electrically connected with the control assembly 20, and the movable seat 1112 and the mounting seat assembly 30 are provided with matched sliding rails and sliding grooves. The servo motor has the advantages of stable operation and high response speed, can provide driving force for the anchor structure, the anchor structure drives the movable seat 1112 to move along the positive and negative directions of X on the sliding rail so as to adjust the width of the glass liquid outlet channel 1113, the sliding rail and the sliding chute can reduce the resistance of the movable seat 1112 when moving on the mounting seat assembly 30, meanwhile, the sliding rail and the sliding chute can be provided with accurate distance marks so that the width of the glass liquid outlet channel 1113 is easy to measure, the servo motor is electrically connected with the control assembly 20, and the driving force of the servo motor is controlled by the control assembly 20.
As shown in fig. 3 and fig. 4, the difference between the technical solution of the third embodiment and the first embodiment is that the surface of the mounting seat assembly 30 is provided with a pair of translation baffles, the movable seat 1112 is located between the translation baffles, the translation baffles can reduce the deflection of the movable seat 1112 during the translation, and the contact surface between the movable seat 1112 and the mounting seat assembly 30 and the contact surface between the movable seat 1112 and the translation baffles are smoothed to reduce the friction coefficient to 0-0.1 in order to reduce the resistance during the translation.
The application also provides a microcrystalline glass forming method. The microcrystalline glass forming method adopts the microcrystalline glass forming device, and comprises the following steps: a target thickness of the glass is determined. The gap of the molten glass outlet channel 1113 is adjusted according to the target thickness of the glass. The pressure to the roller assembly 50 is adjusted according to the target thickness of the glass. Producing glass of a target thickness.
The glass ceramic forming method of the present application further includes detecting the glass of the target thickness produced and transmitting the detection result to the control assembly 20, and the control assembly 20 controls the width of the glass liquid outlet channel 1113 and the pressure of the roller assembly 50 according to the detection result of the glass thickness.
When the glass quality of the target thickness is qualified, the width of the glass liquid outlet channel 1113 and the pressure of the roller assembly 50 are not adjusted, and when the glass quality of the target thickness is unqualified, if the detected thickness difference of the glass thickness detecting assembly 60 is greater than 30% of the target thickness of the glass, the control assembly controls the driving assembly to drive the movable seat to be close to the fixed seat. If the detected thickness difference of the glass thickness detecting assembly 60 is greater than the target thickness of the glass and less than 30%, the control assembly 20 controls the pressure to be increased to the roller assembly 50. If the local thickness of the glass exceeds and/or is excessively large than a predetermined value, the control unit 20 controls the first heating unit 70 to heat up.
Thus, various embodiments of the present application have been described in detail. In order to avoid obscuring the concepts of the application, some details known in the art have not been described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.
While certain specific embodiments of the application have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the application. It will be understood by those skilled in the art that the foregoing embodiments may be modified and equivalents substituted for elements thereof without departing from the scope and spirit of the application. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict.
Claims (16)
1. A glass forming apparatus, comprising:
the shaping chamber assembly (10), shaping chamber assembly (10) include shaping shell structure (11), shaping shell structure (11) have glass liquid drain channel, glass liquid drain channel's width is adjustable to adjust glass's thickness.
2. Glass forming device according to claim 1, wherein the shaped housing structure (11) comprises a shaped base (111) and a shaped housing cover (112), the shaped housing cover (112) is arranged above the shaped base (111), the shaped base (111) comprises a fixed seat (1111) and a movable seat (1112), the movable seat (1112) and the fixed seat (1111) form the glass liquid outlet channel (1113), and the movable seat (1112) can move along the direction approaching to the fixed seat (1111) and away from the fixed seat (1111).
3. The glass forming apparatus of claim 2, further comprising a control assembly (20), a mount assembly (30), and a drive assembly (40), the drive assembly (40) being secured to the mount assembly (30), the movable mount (1112) being movably mounted to the mount assembly (30), the drive assembly (40) being electrically connected to the control assembly (20).
4. A glass forming apparatus according to claim 3, wherein the drive assembly (40) comprises a drive motor (41) and a drive screw (42), the movable seat (1112) having a threaded bore for cooperation with the drive screw (42), a first end of the drive screw (42) being fixedly connected to an output end of the drive motor (41), a second end of the drive screw (42) being mounted in the threaded bore; or the driving component (40) is hydraulically driven; or the driving component (40) is pneumatically driven; or the drive assembly (40) is an electric pushrod.
5. A glass forming apparatus according to claim 3, further comprising a pair of roller assemblies (50), the pair of roller assemblies (50) being disposed in correspondence with the molten glass outlet channel (1113), the pair of roller assemblies (50) being electrically connected to the control assembly (20).
6. The glass forming apparatus according to claim 5, further comprising a glass thickness detection assembly (60), the glass thickness detection assembly (60) being mounted on a side of the pair of roller assemblies (50) remote from the glass liquid outlet channel (1113).
7. The glass forming apparatus according to claim 6, wherein the glass thickness detecting member (60) and the pair of roller members (50) are electrically connected to the control member (20), and the control member (20) controls the driving member (40) to drive the movable seat (1112) to approach the fixed seat (1111) when a detected thickness difference of the glass thickness detecting member (60) is greater than 30% of a target thickness of the glass.
8. The glass forming apparatus according to claim 7, wherein a width L of the glass liquid outlet channel (1113) satisfies the following formula:
L＝X 2 *L 1 /X 1 ；
ΔL＝L 1 -L；
X 1 the current average out-of-tolerance thickness;
L 1 is the width of the current glass liquid outlet channel (1113);
X 2 is the target thickness;
Δl adjustment amount.
9. The glass forming apparatus according to claim 6, wherein the glass thickness detecting assembly (60) and the pair of roller assemblies (50) are each electrically connected to the control assembly (20), and the control assembly (20) controls the pair of roller assemblies (50) to increase the pressure when a detected thickness difference of the glass thickness detecting assembly (60) is greater than a target thickness of the glass and less than 30%.
10. The glass forming apparatus of claim 6, further comprising a first heating assembly (70), the first heating assembly (70) being disposed between the molten glass outlet channel (1113) and the pair of roller assemblies (50), the first heating assembly (70) being electrically connected to the control assembly (20).
11. Glass forming apparatus according to claim 10, characterized in that the first heating element (70) is heated up when the local thickness of the glass exceeds and/or is extremely poor above a predetermined value.
12. The glass forming apparatus according to claim 2, wherein a side surface of the fixed seat (1111) facing the movable seat (1112) is a first inclined surface, a side surface of the movable seat (1112) facing the fixed seat (1111) is a second inclined surface, and lower ends of the first inclined surface and the second inclined surface are connected to an upper end of the molten glass outlet channel (1113).
13. The glass forming apparatus as claimed in claim 2, wherein the shaped housing cover (112) is provided with a diffusing guide channel (1121) and a pressure compensating channel (1122).
14. Glass forming apparatus according to claim 2, wherein the shaping chamber assembly (10) further comprises a second heating structure (12), the second heating structure (12) being at least partially arranged inside the shaping chamber assembly (10).
15. A glass molding method, characterized by using the glass molding apparatus according to any one of claims 1 to 14, comprising the steps of:
determining a target thickness of the glass;
adjusting the gap of the glass liquid outlet channel (1113) according to the target thickness of the glass;
adjusting the pressure of the counter roller assembly (50) according to the target thickness of the glass;
producing glass of a target thickness.
16. The glass forming method according to claim 15, further comprising detecting the glass of the target thickness produced and transmitting the detection result to a control unit (20), wherein the control unit (20) controls the width of the glass liquid outlet channel (1113) and the pressure of the roller unit (50) according to the detection result of the glass thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311075871.5A CN117209140B (en) | 2023-08-24 | Glass molding device and glass molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311075871.5A CN117209140B (en) | 2023-08-24 | Glass molding device and glass molding method |
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| Publication Number | Publication Date |
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| CN117209140A true CN117209140A (en) | 2023-12-12 |
| CN117209140B CN117209140B (en) | 2024-06-07 |
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