CN220555668U - Improve calendering roller structure and glass production line of calendering glass thickness difference - Google Patents
Improve calendering roller structure and glass production line of calendering glass thickness difference Download PDFInfo
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- CN220555668U CN220555668U CN202321904310.7U CN202321904310U CN220555668U CN 220555668 U CN220555668 U CN 220555668U CN 202321904310 U CN202321904310 U CN 202321904310U CN 220555668 U CN220555668 U CN 220555668U
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- cooling water
- water core
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- roll
- calender roll
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- 239000011521 glass Substances 0.000 title claims abstract description 94
- 238000003490 calendering Methods 0.000 title claims abstract description 87
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000000498 cooling water Substances 0.000 claims abstract description 137
- 230000004323 axial length Effects 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000007788 liquid Substances 0.000 abstract description 33
- 238000001816 cooling Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 15
- 239000006060 molten glass Substances 0.000 description 10
- 238000005096 rolling process Methods 0.000 description 9
- 230000007423 decrease Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000000465 moulding Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000005401 pressed glass Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a calendaring roller structure for improving thickness difference of calendared glass and a glass production line, the calendaring roller structure comprises two calendaring rollers, a cooling water core is arranged in at least one calendaring roller along the axial length direction of the calendaring rollers, the vertical width of the cooling water core is in a structure form that the vertical width of the cooling water core is increased and then reduced in the axial direction, and the position of the maximum value of the vertical width of the cooling water core corresponds to the position of the axial central line of the calendaring rollers. This scheme makes the cooling water core be good to the cooling effect of calender roll intermediate position, and calender roll intermediate position's temperature is low, and the cooling water core is poor to calender roll both ends's cooling effect, and calender roll both ends position's temperature is high, and this is just in contrast with the condition that glass liquid intermediate position temperature is high, and both ends position temperature is low, reaches the purpose of offset temperature difference each other from this to make the thickness of the fashioned glass of calendering even unanimity, improved the phenomenon that calender glass is middle thin, both sides are thick.
Description
Technical Field
The utility model relates to the technical field of glass production and processing, in particular to a calendaring roller structure for improving thickness difference of calendared glass and a glass production line.
Background
In the forming process of the rolled glass, molten glass flows out of a melting tank and enters a calender, so that the glass is hydraulically formed into plate-shaped glass.
The calender comprises an upper calender roll and a lower calender roll, wherein the calender rolls are key components of the calender, and when glass liquid passes between the calender rolls, the upper calender roll and the lower calender roll the glass liquid at the same time so as to finish the process of hydraulically manufacturing the glass into plate-shaped glass.
When glass liquid is formed between two calendaring rollers, the temperature of the glass liquid at the middle position is always higher than that of the glass liquid at the two sides, so that the rolled glass is always thin at the middle and thick at the two sides.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to solve the technical problems that: how to provide a calender roll structure capable of improving the phenomena of thinning the middle and thickening the two sides of the calendered glass.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides an improve calendering roller structure of calendering glass thickness difference, includes two calendering rollers, at least one the inside of calendering roller is equipped with the cooling water core along its axial length direction, the vertical width of cooling water core is the structure form that increases earlier then reduces in the axial direction, just the position of the vertical width maximum value of cooling water core corresponds with the axial central line position of calendering roller.
The working principle of the utility model is as follows: when the calendering roller structure of this scheme is in use, through set up the cooling water core that leads to cooling water in the inside of at least one calendering roller along its axial length direction, and the vertical width of cooling water core is the structural style that increases earlier and then reduces at axial direction, the position of the vertical width maximum value of cooling water core is corresponding with the axial central line position of calendering roller, the whole structure style that is the big both ends regional volume of middle region of cooling water core, like this when cooling water flow through cooling water core, the position cooling water volume that the cooling water core middle region is big also, and the position cooling water volume that both ends regional volume is little is also little, just so can make the cooling water core cool off effectual to the calendering roller middle region, the temperature of calendering roller middle region is low, the cooling water core is poor to the cooling effect of calendering roller both ends, the temperature of calendering roller both ends position is high, this is just opposite with the glass liquid middle position temperature, the temperature is low in both ends position, thereby reach the purpose that offset temperature difference each other, thereby make the fashioned glass thickness of middle, thickness, the phenomenon of both sides thick is improved.
Preferably, the axial length of the cooling water core is greater than 60% of the axial length of the calender roll shaft.
Like this, the axial length of cooling water core is greater than the 60% of calender roll roller axial length, can make the cooling water effectively cool off the calender roll department that corresponds with the high glass liquid of intermediate position temperature, and the cooling water in the cooling water core has sufficient cooling length to the calender roll, and then guarantees the thickness homogeneity of calender molding glass.
Preferably, the cooling water core penetrates through the calender roll in the axial direction.
Like this, the cooling water core runs through the calender roll along axial direction, can further improve the cooling effect to each position of calender roll to better offset the temperature difference in different positions of glass liquid, guarantee glass calendering molding effect.
Preferably, the vertical width of the cross section of the cooling water core is gradually reduced towards two sides in the axial direction by taking the axial central line position of the calendaring roller as the center.
Therefore, the vertical width of the cooling water core section gradually decreases towards the two axial sides by taking the axial central line position of the calendaring roller as the center, so that the vertical width dimension of the cooling water core section is the largest at the axial central line position of the calendaring roller and gradually decreases towards the two axial sides, and the cooling water core section is also better suitable for the conditions of high glass liquid middle temperature and low glass liquid side temperature, thereby better improving the phenomena of thin middle and thick two sides of the rolled glass.
Preferably, the vertical width of the cross section of the cooling water core is gradually reduced in an arc shape from the axial center line position of the calendaring roller to two sides in the axial direction.
Thus, the arc-shaped pattern can reduce the resistance of the cooling water in flowing and ensure the cooling effect.
Preferably, the calendaring roller is further provided with a water inlet and a water outlet, and the water inlet and the water outlet are respectively positioned at two axial sides of the cooling water core and are communicated with the cooling water core.
Thus, the cooling water enters the cooling water core from the water inlet, flows along the cooling water core and flows out from the water outlet.
Preferably, cooling water cores are arranged in the two calendaring rollers.
In this way, by providing the cooling water cores in both the two calender rolls, the molten glass can be cooled from both the upper and lower sides at the same time, and thus the temperature difference between the molten glass and the molten glass can be better counteracted, and the improvement of the situation that the calendered glass is thin in the middle and thick at both sides can be improved.
Preferably, the gap between the two calender rolls is kept uniform in the axial direction.
Therefore, the gap between the two calendaring rollers is kept consistent in the axial direction, and the processing difficulty of the outline of the calendaring rollers is reduced.
Preferably, the vertical maximum width of the cooling water core section is greater than 50% of the vertical width of the calendaring roller at the corresponding position and less than 75% of the vertical width of the calendaring roller at the corresponding position.
Therefore, the vertical maximum width of the cross section of the cooling water core is larger than 50% of the vertical width of the corresponding position calendaring roller and smaller than 75% of the vertical width of the corresponding position calendaring roller, so that the cooling effect of the cooling water core on glass liquid with higher intermediate temperature can be ensured, and meanwhile, the working strength of the calendaring roller is ensured.
A glass production line adopts the calendaring roller structure for improving the thickness difference of the calendared glass.
Drawings
FIG. 1 is a schematic diagram of a prior art mechanical profiling design method;
FIG. 2 is an isometric view of a calender roll configuration (only one calender roll having a cooling water core) for improving the thickness difference of the calendered glass according to the utility model;
FIG. 3 is an isometric view of a calender roll configuration of the present utility model (cooling water cores are provided on both calender rolls) for improving the difference in thickness of the calendered glass;
FIG. 4 is a front view showing the structure of a calender roll for improving the thickness difference of a calendered glass according to the present utility model;
FIG. 5 is a cross-sectional view showing the structure of a roll for improving the thickness difference of rolled glass according to the present utility model.
Reference numerals illustrate: an upper calendaring roller 1, a lower pressing roller 2, an upper cooling water core 3 and a lower cooling water core 4.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs.
The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Also, unless the context clearly indicates otherwise, singular forms "a," "an," or "the" and similar terms do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "comprises," "comprising," or the like are intended to cover a feature, integer, step, operation, element, and/or component recited as being present in the element or article that "comprises" or "comprising" does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. "up", "down", "left", "right" and the like are used only to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed accordingly.
In the forming process of the rolled glass, molten glass flows out of a melting tank and enters a calender, so that the glass is hydraulically formed into plate-shaped glass.
The calender comprises an upper calender roll and a lower calender roll, wherein the calender rolls are key components of the calender, and when glass liquid passes between the calender rolls, the upper calender roll and the lower calender roll the glass liquid at the same time so as to finish the process of hydraulically manufacturing the glass into plate-shaped glass.
The rolled glass is formed between the rolling rollers, and the temperature of glass liquid at the middle position is higher than that of glass liquid at two sides, so that the rolled glass is thin at the middle and thick at two sides. In the prior art, a mechanical profiling design method is adopted to solve the problem of thickness difference of the thickness of the two sides of the rolled glass.
The mechanical profiling design method is shown in the structure schematic diagram in the attached figure 1: the glass liquid is formed by rolling from a gap gs between the upper rolling roller 1 and the lower rolling roller 2, the gap gs between the rollers is large in middle position, and small in two side positions, so that the glass liquid flowing through the middle position is higher than the glass liquid on two sides, and the poor thickness difference of the glass middle thin and the two sides thick is compensated by utilizing a mechanical profiling design. However, the gap gs between the rolls is constant, and the thickness of the molten glass at the middle position and the thickness of the molten glass at the two sides are not completely the same in different periods, so that the structure cannot be well adapted to the thickness of the molten glass in different periods.
In this scheme, another structure of a calendaring roller for improving thickness difference of rolled glass is provided, as shown in fig. 2 to 5, and the calendaring roller comprises two calendaring rollers, wherein a cooling water core is arranged in at least one calendaring roller along the axial length direction of the calendaring roller, the vertical width of the cooling water core is in a structure form that the vertical width of the cooling water core is increased and then reduced in the axial direction, and the position of the maximum value of the vertical width of the cooling water core corresponds to the axial center line position of the calendaring roller. In this scheme, the cooling water core is one kind and can let in the structure of cooling water in its inside, through offer the mounting groove that suits with the appearance of cooling water core in its axial direction in the inside of calender roll, then with the cooling water core setting in the mounting groove, can realize the cooling effect to the calender roll through the cooling water in the cooling water core from this, simultaneously. In this scheme, the position of the maximum value of the vertical width of the cooling water core corresponds to the axial center line position of the calender roll, which includes both the case where the position of the maximum value of the vertical width of the cooling water core coincides with the axial center line position of the calender roll and the case where the position of the maximum value of the vertical width of the cooling water core deviates to the left or right by a certain distance (5% -10% of the axial length of the calender roll) from the axial center line position of the calender roll. Fig. 2 shows a case where a cooling water core is provided in the interior of only one calender roll, and fig. 3 shows a case where a cooling water core is provided in the interior of both calender rolls.
The working principle of the utility model is as follows: when the calendering roller structure of this scheme is in use, through set up the cooling water core that leads to cooling water in the inside of at least one calendering roller along its axial length direction, and the vertical width of cooling water core is the structural style that increases earlier and then reduces at axial direction, the position of the vertical width maximum value of cooling water core is corresponding with the axial central line position of calendering roller, the whole structure style that is the big both ends regional small volume of middle region volume of cooling water core promptly, like this when cooling water flow through cooling water core, the position cooling water volume that the cooling water core middle region is big also, and the position cooling water volume that both ends regional small is also little is little, just so can make the cooling water core cool off effectual to the calendering roller middle region, the temperature of cooling water core is poor to the calendering roller both ends, the temperature of calendering roller both ends position is high, this is just opposite with the glass liquid middle position temperature high, thereby reach the purpose that offsets glass liquid middle position and glass liquid both ends position temperature difference, thereby make fashioned glass thickness even and unanimous, the phenomenon of calendering thickness in the middle of calendering glass is improved. Meanwhile, the cooling water of the cooling water core is used for cooling the temperature of the calendaring rollers, so that when glass liquid in different periods flows between the two calendaring rollers, the flow rate of the cooling water can be adjusted according to the temperature condition of the glass liquid at the moment, the purpose of adapting to the temperature of the glass liquid is achieved, and the problem of poor thickness after glass molding is further improved.
In this embodiment, the axial length of the cooling water core is greater than 60% of the axial length of the calender roll.
Like this, the axial length of cooling water core is greater than the 60% of calender roll roller axial length, can make the cooling water effectively cool off the calender roll department that corresponds with the high glass liquid of intermediate position temperature, and the cooling water in the cooling water core has sufficient cooling length to the calender roll, and then guarantees the thickness homogeneity of calender molding glass.
In this embodiment, the cooling water core penetrates the calender roll in the axial direction.
Like this, the cooling water core runs through the calender roll along axial direction, can further improve the cooling effect to each position of calender roll to better offset the temperature difference in different positions of glass liquid, guarantee glass calendering molding effect.
In this embodiment, the vertical width of the cooling water core cross section gradually decreases toward both sides in the axial direction with the axial center line position of the calender roll as the center.
Therefore, the vertical width of the cooling water core section gradually decreases towards the two axial sides by taking the axial central line position of the calendaring roller as the center, so that the vertical width dimension of the cooling water core section is the largest at the axial central line position of the calendaring roller and gradually decreases towards the two axial sides, and the cooling water core section is also better suitable for the conditions of high glass liquid middle temperature and low glass liquid side temperature, thereby better improving the phenomena of thin middle and thick two sides of the rolled glass.
In this embodiment, the vertical width of the cooling water core cross section gradually decreases in an arc-shaped fashion toward both sides in the axial direction with the axial center line position of the calender roll as the center.
Thus, the arc-shaped pattern can reduce the resistance of the cooling water in flowing and ensure the cooling effect.
In the concrete implementation, the vertical width of the cross section of the cooling water core can be designed into a structure form which takes the axial central line position of the calendaring roller as the center and sequentially reduces to two sides in the axial direction in a step mode.
In this embodiment, the calendaring roller is further provided with a water inlet and a water outlet, which are respectively located at two axial sides of the cooling water core and are both communicated with the cooling water core.
Thus, the cooling water enters the cooling water core from the water inlet, flows along the cooling water core and flows out from the water outlet.
In this embodiment, the vertical maximum width of the cooling water core cross section is greater than 50% and less than 75% of the vertical width of the calender roll at the corresponding position.
Therefore, the vertical maximum width of the cross section of the cooling water core is larger than 50% of the vertical width of the corresponding position calendaring roller and smaller than 75% of the vertical width of the corresponding position calendaring roller, so that the cooling effect of the cooling water core on glass liquid with higher intermediate temperature can be ensured, and meanwhile, the working strength of the calendaring roller is ensured.
As shown in fig. 4, in this embodiment, cooling water cores are disposed in two calender rolls, which are an upper calender roll 1 and a lower calender roll 2, respectively, an upper cooling water core 3 is disposed in the upper calender roll 1 along its axial length direction, and a lower cooling water core 4 is disposed in the lower calender roll 2 along its axial length direction.
In this way, the upper cooling water core 3 cools the upper calender roll 1, the lower cooling water core 4 cools the lower calender roll 2, and the molten glass can be cooled from both upper and lower sides simultaneously by cooling the upper and lower calender rolls, so that the temperature difference between the upper and lower calender rolls and the molten glass can be better counteracted, and the improvement of the situation that the middle of the pressed glass is thin and the two sides are thick is improved.
In the present embodiment, the upper cooling water core 3 penetrates the upper calender roll 1 in the axial direction, and the lower cooling water core 4 penetrates the lower calender roll 2 in the axial direction.
Therefore, the upper cooling water core and the lower cooling water core respectively penetrate through the upper calendaring roller and the lower calendaring roller along the axial direction, so that the cooling effect on each position of the upper calendaring roller and the lower calendaring roller can be further improved, the temperature difference of different positions of glass liquid can be better counteracted, and the calendaring forming effect of glass is ensured. Specifically, as shown in fig. 2 and 4, for the upper calender roll 1, the cooling water flows into the upper cooling water core 3 from the A1, then flows out of the upper cooling water core 3 from the B1, and for the lower calender roll 2, the cooling water flows into the lower cooling water core 4 from the A2, then flows out of the lower cooling water core 4 from the B2.
In this embodiment, the vertical width of the cross section of the upper cooling water core 3 gradually decreases in an arc-shaped manner from the center to the two sides in the axial direction above the axial center line position of the calender roll 1, and the vertical width of the cross section of the lower cooling water core 4 gradually decreases in an arc-shaped manner from the center to the two sides in the axial direction below the axial center line position of the calender roll 2.
Therefore, the upper cooling water core and the lower cooling water core are all arranged in arc-shaped patterns, so that the resistance of the cooling water in flowing can be reduced, and the cooling effect is ensured.
In the present embodiment, the inter-roll gap between the two calender rolls is kept uniform in the axial direction. As also shown in fig. 3, the inter-roll gap gs between the upper calender roll 1 and the lower calender roll 2 is always uniform in the axial direction.
Because the upper cooling water core and the lower cooling water core of the two rolling rollers compensate the temperature difference of glass liquid in the horizontal direction during rolling, the gap between the two rolling rollers is set to be consistent in the axial direction, the temperature is not influenced by the gap between the rolling rollers, and meanwhile, the processing difficulty of the shape of the rolling rollers is reduced. In other embodiments, the upper cooling water core and the lower cooling water core of the two calendaring rollers can be set to different capacities, and gaps between the calendaring rollers are matched according to the cooling difference between the upper cooling water core and the lower cooling water core of the two calendaring rollers, so that the temperature of glass liquid in the horizontal direction is relatively balanced during calendaring.
In addition, this scheme still provides a glass production line, and this glass production line adopts the calendering roller structure of above-mentioned improvement calendering glass thickness difference.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the technical solution, and those skilled in the art should understand that modifications and equivalents may be made to the technical solution of the present utility model without departing from the spirit and scope of the present utility model, and all such modifications and equivalents are included in the scope of the claims.
Claims (10)
1. The utility model provides an improve calendering roller structure of calendering glass thickness difference, includes two calendering rollers, its characterized in that is equipped with the cooling water core in at least one the inside of calendering roller along its axial length direction, the vertical width of cooling water core is the structure form that increases earlier then reduces in the axial direction, just the position of the vertical width maximum value of cooling water core corresponds with the axial central line position of calendering roller.
2. The structure of a roll for improving a thickness difference of rolled glass according to claim 1, wherein an axial length of the cooling water core is more than 60% of an axial length of the roll.
3. The structure of a roll for improving a thickness difference of rolled glass according to claim 1, wherein the cooling water core penetrates the roll in an axial direction.
4. The structure of a roll for improving a thickness difference of rolled glass according to claim 1, wherein a vertical width of a cross section of the cooling water core is gradually reduced toward both sides in an axial direction with an axial center line position of the roll as a center.
5. The structure of a roll for improving a thickness difference of rolled glass according to claim 1, wherein a vertical width of a cross section of the cooling water core is gradually reduced in an arc-shaped pattern toward both sides in an axial direction with an axial center line position of the roll as a center.
6. The structure of a calender roll for improving thickness difference of a rolled glass according to claim 1, wherein a water inlet and a water outlet are further formed in the calender roll, and the water inlet and the water outlet are respectively located at two axial sides of the cooling water core and are both communicated with the cooling water core.
7. The structure of a calender roll for improving the thickness difference of a rolled glass according to any one of claims 1 to 6, wherein a cooling water core is provided in both of the calender rolls.
8. The structure of a calender roll for improving a thickness difference of a rolled glass according to any one of claims 1 to 6, wherein a gap between rolls between two of the calender rolls is kept uniform in an axial direction.
9. The structure of a calender roll for improving a thickness difference of a rolled glass according to any one of claims 4 to 6, wherein a vertical maximum width of a cross section of the cooling water core is greater than 50% and less than 75% of a vertical width of the calender roll at a corresponding position.
10. A glass production line, characterized in that it adopts a calender roll structure having the improved difference in thickness of the calendered glass according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321904310.7U CN220555668U (en) | 2023-07-19 | 2023-07-19 | Improve calendering roller structure and glass production line of calendering glass thickness difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321904310.7U CN220555668U (en) | 2023-07-19 | 2023-07-19 | Improve calendering roller structure and glass production line of calendering glass thickness difference |
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| Publication Number | Publication Date |
|---|---|
| CN220555668U true CN220555668U (en) | 2024-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321904310.7U Active CN220555668U (en) | 2023-07-19 | 2023-07-19 | Improve calendering roller structure and glass production line of calendering glass thickness difference |
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| Country | Link |
|---|---|
| CN (1) | CN220555668U (en) |
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2023
- 2023-07-19 CN CN202321904310.7U patent/CN220555668U/en active Active
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