CN110642506B - Glass corrugated plate hot bending device and application thereof - Google Patents
Glass corrugated plate hot bending device and application thereof Download PDFInfo
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- CN110642506B CN110642506B CN201911100009.9A CN201911100009A CN110642506B CN 110642506 B CN110642506 B CN 110642506B CN 201911100009 A CN201911100009 A CN 201911100009A CN 110642506 B CN110642506 B CN 110642506B
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- corrugated plate
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- bending device
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- 239000011521 glass Substances 0.000 title claims abstract description 116
- 238000013003 hot bending Methods 0.000 title claims abstract description 59
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 4
- 229910001374 Invar Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000005388 borosilicate glass Substances 0.000 claims description 3
- 239000005354 aluminosilicate glass Substances 0.000 claims description 2
- 239000005361 soda-lime glass Substances 0.000 claims description 2
- 230000002349 favourable effect Effects 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 21
- 238000007493 shaping process Methods 0.000 description 3
- 239000005357 flat glass Substances 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- NCXOIRPOXSUZHL-UHFFFAOYSA-N [Si].[Ca].[Na] Chemical compound [Si].[Ca].[Na] NCXOIRPOXSUZHL-UHFFFAOYSA-N 0.000 description 1
- 239000005328 architectural glass Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Abstract
The invention relates to a glass corrugated plate hot bending device and application thereof, comprising a lower die, wherein the lower die comprises a first bottom support, a plurality of first semi-cylindrical bars are arranged in the first bottom support, and a plurality of positioning guide posts are arranged around the first bottom support. The glass corrugated plate hot bending device main body adopts a hollow structure, reduces the heat absorption of the die, has good thermal circulation effect, is favorable for uniform heating of the die, prolongs the service life of the die and is favorable for accurate forming of glass, and meanwhile, the forming of the hot bending glass is realized by matching the upper die with the lower die, so that the forming precision is high, and the glass corrugated plate hot bending device can be used for processing the precise hot bending glass corrugated plate.
Description
Technical Field
The invention relates to a glass corrugated plate hot bending device and application thereof, and belongs to the field of glass deep processing.
Background
The hot bending glass is curved glass which is formed in a mould and is annealed to meet the high-quality requirement of modern buildings and is heated, bent and softened by high-quality glass. The pattern is beautiful and the lines are smooth. It breaks through the singleness of the plate glass, and is more flexible and diversified in use.
The hot-bent glass is classified into three types of single bending, bending and compound bending according to the shape. For single-bend architectural glass, glass hot bending is relatively easy. The common glass bending and hot bending methods are aquarium glass and counter glass, and the biggest technical difficulty of glass bending is that defects such as mould marks are easy to occur at the bending and bending angle positions of the straight line edges. Therefore, bent glass is also common, such as spherical glass, curved arched profiles, glass finger-washing basins and the like, and the glass has high technical level in hot bending operation, accurate mould manufacturing and can be finished by a professional hot bending furnace.
The glass corrugated plate is a multi-bending-surface hot bending glass, each bending surface is close in distance, bending radius is small, and no professional hot bending die exists at present.
Disclosure of Invention
Accordingly, the present invention is directed to a glass corrugated plate hot bending apparatus and an application thereof.
In one aspect, the invention provides a glass corrugated plate hot bending device, which comprises a lower die, wherein the lower die comprises a first bottom support, a plurality of first semi-cylindrical rods are arranged in the first bottom support, and a plurality of positioning guide posts are arranged around the first bottom support.
Preferably, the upper die is connected with the lower die, the upper die comprises a second bottom bracket, a plurality of second semi-cylindrical rods are arranged in the second bottom bracket, and a plurality of positioning guide holes matched with the positioning guide posts are formed in the periphery of the second bottom bracket.
Preferably, the first semi-cylindrical rod and the second semi-cylindrical rod are hollow structures, so that the upper die and the lower die can be heated uniformly, the hollow structures are small in size, and the temperature difference between each part of the upper die and each part of the lower die is small.
Preferably, a plurality of the first semi-cylindrical bars and a plurality of the second semi-cylindrical bars are arranged in rows, respectively.
Preferably, the first bottom support and the second bottom support are hollow structures.
Preferably, the first shoe and the second shoe are square frame structures with the same specification.
Preferably, one corner of the first bottom support is provided with a right-angle glass positioning plate.
Preferably, the upper second bottom bracket is also provided with a hook for lifting.
Preferably, the number of the first semi-cylindrical bars is one more than the number of the second semi-cylindrical bars.
Preferably, the diameters of the first semi-cylindrical rod and the second semi-cylindrical rod may be the same or different, when the diameters are the same, the bending curvatures of the upper arch and the lower arch of the corrugated plate are the same, and when the diameters are different, the bending curvatures of the upper arch and the lower arch are different, so as to meet different specifications of products.
Preferably, the central lines of the positioning guide posts and the positioning guide holes are mutually overlapped and perpendicular to the combination plane of the upper die and the lower die, and the number of the positioning guide posts and the number of the positioning guide holes are respectively 2-4.
Preferably, the upper and lower dies are made of aluminum, steel, integral graphite, ceramic, silicon rubber, electroformed nickel, invar or copper alloy.
In another aspect, the present invention provides a method of manufacturing a corrugated sheet of glass comprising the steps of:
and (3) placing the glass on a lower die, pressing an upper die, integrally placing the glass corrugated plate hot bending device in a muffle furnace hearth, heating to the softening temperature of the glass, preserving heat for 4-40 minutes, then taking out the glass corrugated plate hot bending device from the furnace hearth after cooling, and taking down the upper die to obtain the glass corrugated plate.
Preferably, the method for manufacturing the glass corrugated plate comprises the following steps:
And placing glass on a plurality of first semi-cylindrical rods of a lower die of the glass corrugated plate hot bending device, after the right-angle locating plate on one corner top of the glass is accurately located, pressing and buckling an upper die of the glass corrugated plate hot bending device into a whole, integrally placing the glass corrugated plate hot bending device in a muffle furnace hearth, heating to the softening temperature of the glass, preserving heat for 5-30 minutes, cooling to below 50 ℃, taking the glass corrugated plate hot bending device out of the furnace hearth, and taking down the upper die to obtain the glass corrugated plate.
Preferably, the glass is selected from one of soda lime glass, aluminosilicate glass or borosilicate glass.
In another aspect, the present invention provides a corrugated sheet of glass produced by the above-described method.
In another aspect, the invention provides a solar cover plate comprising the glass corrugated plate.
By means of the technical scheme, the glass corrugated plate hot bending device has at least the following advantages:
1. The glass bending die with multiple bending directions and denser corrugation belongs to domestic initiatives, and can directly process common flat glass by hot bending to obtain the glass corrugated plate. The existing corrugated plate is generally prepared by directly pouring glass hot melt liquid, has high working environment, needs to be matched with hot melt equipment and has complex process.
2. The die main body adopts the hollow structure to set up, has reduced the mould itself and to the absorption of heat, and thermal cycle is effectual, is favorable to the even heating of mould, has both prolonged the life-span of mould and has still been favorable to the accurate shaping of glass, adopts upper and lower mould cooperation to realize the shaping to hot-bending glass simultaneously, and the shaping precision is high, can be used to process accurate hot-bending glass corrugated plate.
Drawings
FIG. 1 is a schematic view of a glass corrugated plate hot bending apparatus according to a preferred embodiment of the present invention;
FIG. 2 is a schematic view of another embodiment of a heat bending apparatus for corrugated glass sheets;
fig. 3 is a schematic view of a structure of a corrugated glass sheet manufactured using the apparatus for thermally bending a corrugated glass sheet of fig. 1.
Detailed Description
To further illustrate the technical means and effects of the present invention for achieving the intended purpose, the following is combined with the preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.
Materials, reagents, and the like used in the examples described below are all commercially available.
Example 1
As shown in fig. 1, a glass corrugated plate hot bending device comprises a lower die 1 and an upper die 2 which are connected with each other, wherein the lower die 1 comprises a hollow first bottom support 11, a plurality of first semi-cylindrical rods 12 are arranged in the first bottom support 11, a plurality of positioning guide posts 13 are arranged around the first bottom support 11, the upper die 2 comprises a hollow second bottom support 21, a plurality of second semi-cylindrical rods 22 are arranged in the second bottom support 21, and a plurality of positioning guide holes 23 matched with the positioning guide posts 13 are arranged around the second bottom support 21. The central lines of the positioning guide posts 13 and the positioning guide holes 23 are mutually overlapped and perpendicular to the combination plane of the upper die and the lower die, and the number of the positioning guide posts 13 and the positioning guide holes 23 is 4. The first shoe 11 and the second shoe 21 are square frame structures with the same specification. One corner of the first shoe 11 is provided with a glass positioning plate 14. The second bottom bracket 21 is also provided with a hook 24 for lifting. The first semi-cylindrical rod 12 and the second semi-cylindrical rod 22 are respectively arranged in rows and are hollow structures, so that the uniform temperature rise of the die is facilitated, the hollow structures are small in size, and the temperature difference of all parts of the die is small. The radius of the first semi-cylindrical rods 12 is 12.5mm, the number of the first semi-cylindrical rods 12 is 7, and the center distance between two adjacent first semi-cylindrical rods 12 is 30mm; the radius of the second semi-cylindrical bars 22 is 10mm, the number is 8, and the center distance between two adjacent second semi-cylindrical bars 22 is 30mm. The upper and lower dies may be made of aluminum or steel, integral graphite, ceramic, silicon rubber, electroformed nickel, invar steel, copper alloy, etc., and typically aluminum, graphite or ceramic dies are used. Placing common 1.1mm sodium-calcium-silicon glass on a lower die 1, positioning a glass positioning plate 14, pressing the upper die 2, integrally placing the glass corrugated plate hot bending device into a hot bending furnace, slowly heating to 600 ℃ per minute at 5 ℃, observing the state of the glass through an observation hole of the hot bending furnace, closing the hot bending furnace after about 15 minutes of glass bending in place, naturally cooling, taking out the glass corrugated plate hot bending device after the temperature is lower than 50 ℃, lifting the upper die 2, taking out the corrugated plate, and obtaining the glass corrugated plate 100' with a fixed upper and lower bending arch, as shown in figure 3. When the upper die and the lower die are matched, the upper surface and the lower surface of the glass are tightly attached to the glass in the hot bending process, the bending precision of the upper surface and the lower surface of the glass is ensured, and the upper arch and the lower arch bending degree of the prepared glass are completely matched with the designed dies, so that the glass corrugated plate is suitable for preparing glass corrugated plates with high precision requirements.
Example 2
As shown in fig. 2, the glass corrugated plate hot bending device is mainly used for glass corrugated plates with relaxed requirements on the arc radian of upper hot bending, and compared with the glass corrugated plate hot bending device in embodiment 1, the glass corrugated plate hot bending device only comprises a lower die 1, the lower die 1 comprises a hollow first bottom support 11, and a plurality of first semi-cylindrical rods 12 are arranged in the first bottom support 11. The lower die 1 can be of a solid or hollow structure, the radius of the first semi-cylindrical rods 12 is 10mm, the number of the first semi-cylindrical rods is 8, and the center distance between two adjacent first semi-cylindrical rods 12 is 30mm. One corner of the first shoe 11 is provided with a glass positioning plate (not shown). The lower die 1 may be made of aluminum or steel, integral graphite, ceramic, silicon rubber, electroformed nickel, invar, copper alloy, or the like. The 1.1mm borosilicate glass 100 is placed on the lower die 1, the glass positioning plate 14 is positioned, then the glass corrugated plate hot bending device is integrally placed in a hot bending furnace, the temperature is slowly increased to 720 ℃ per minute, the glass state is observed through an observation hole of the hot bending furnace, after the glass is bent in place for about 25 minutes, the hot bending furnace is closed, the glass corrugated plate hot bending device is taken out after the temperature is naturally reduced to be lower than 50 ℃, and the glass corrugated plate with a fixed upper bending arch and a lower bending arch is obtained after the corrugated plate is taken out. When the lower die is adopted to carry out hot bending independently, the upper surface of the glass is in direct contact with air, so that the temperature rise of the glass in the hot bending process is facilitated, the upper surface of the prepared glass corrugated plate is very smooth because the upper surface is pressureless, but meanwhile, the precision is slightly poor because only the lower die is arranged, and the method is mainly used for processing the glass corrugated plate with low precision requirement and high surface quality requirement.
Through tests, the curvature error of the glass corrugated plate prepared by adopting the embodiment 1 is within 1.5 milliradian, the curvature error of the glass corrugated plate prepared by adopting the embodiment 2 is about 2 milliradian, and the accuracy is higher by adopting the first mode. In addition, the glass corrugated plate prepared in example 1 had a small amount of pits or depressions on both the upper and lower surfaces, while the glass corrugated plate prepared in example 2 had a small amount of pits or depressions on the lower surface, and the depressions were shallow, and the upper surface was free of pits and depressions, so that the relative amount was small.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (11)
1. The glass corrugated plate hot bending device is characterized by comprising a lower die, wherein the lower die comprises a first bottom bracket, a plurality of first semi-cylindrical bars are arranged in the first bottom bracket, and a plurality of positioning guide posts are arranged around the first bottom bracket;
the upper die comprises a second bottom bracket, a plurality of second semi-cylindrical rods are arranged in the second bottom bracket, and a plurality of positioning guide holes matched with the positioning guide posts are formed in the periphery of the second bottom bracket;
The first semi-cylindrical rod and the second semi-cylindrical rod are hollow structures; the plurality of first semi-cylindrical rods and the plurality of second semi-cylindrical rods are respectively arranged in rows; the center distance between two adjacent first semi-cylindrical rods or two adjacent second semi-cylindrical rods is 30mm;
The first bottom support and the second bottom support are hollow structures.
2. The glass corrugated sheet hot bending apparatus according to claim 1, wherein the first shoe and the second shoe are square frame structures of the same specification.
3. A glass corrugated sheet hot bending apparatus according to claim 1 or claim 2, wherein one of the corners of the first shoe is provided with a right angle glass locating plate.
4. A glass corrugated board hot bending apparatus according to claim 3, wherein the second shoe is further provided with a hook for lifting.
5. The glass corrugated sheet hot bending apparatus according to claim 4, wherein the number of first semi-cylindrical rods is one more than the number of second semi-cylindrical rods.
6. The glass corrugated plate hot bending device according to claim 5, wherein the central lines of the positioning guide posts and the positioning guide holes are mutually overlapped and perpendicular to the combination plane of the upper die and the lower die, and the number of the positioning guide posts and the positioning guide holes is 2-4 respectively; the upper and lower dies are made of aluminum, steel, integral graphite, ceramic, silicon rubber, electroformed nickel, invar or copper alloy.
7. A method for manufacturing a corrugated glass sheet using the apparatus for hot bending a corrugated glass sheet according to any one of claims 1 to 6, comprising the steps of:
And (3) placing the glass on a lower die, pressing an upper die, integrally placing the glass corrugated plate hot bending device in a muffle furnace hearth, heating to the softening temperature of the glass, preserving heat for 4-40 minutes, and taking out the glass corrugated plate hot bending device from the furnace hearth after cooling, and taking down the upper die to obtain the glass corrugated plate.
8. The method of manufacturing according to claim 7, comprising the steps of:
And placing glass on a plurality of first semi-cylindrical rods of a lower die of the glass corrugated plate hot bending device, after the right-angle locating plate on one corner top of the glass is accurately located, pressing and buckling an upper die of the glass corrugated plate hot bending device into a whole, integrally placing the glass corrugated plate hot bending device in a muffle furnace hearth, heating to the softening temperature of the glass, preserving heat for 5-30 minutes, cooling to below 50 ℃, taking the glass corrugated plate hot bending device out of the furnace hearth, and taking down the upper die to obtain the glass corrugated plate.
9. The method of manufacturing according to claim 7, wherein the glass is one selected from soda lime glass, aluminosilicate glass, and borosilicate glass.
10. A corrugated sheet of glass produced by the method of any one of claims 7-9.
11. A solar cover sheet comprising the corrugated glass sheet of claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911100009.9A CN110642506B (en) | 2019-11-12 | Glass corrugated plate hot bending device and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911100009.9A CN110642506B (en) | 2019-11-12 | Glass corrugated plate hot bending device and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110642506A CN110642506A (en) | 2020-01-03 |
| CN110642506B true CN110642506B (en) | 2024-07-05 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH091248A (en) * | 1995-06-14 | 1997-01-07 | S K R Kk | Multi-step drawing-in formation of corrugated sheet for package and forming die mechanism |
| CN103359919A (en) * | 2013-06-26 | 2013-10-23 | 中国建筑材料科学研究总院 | Glass hot-bending die as well as manufacturing method and application thereof |
| CN107867793A (en) * | 2017-10-31 | 2018-04-03 | 广东欧珀移动通信有限公司 | Bend glass cover plate, the preparation method of bend glass cover plate and mobile terminal |
| CN211111696U (en) * | 2019-11-12 | 2020-07-28 | 中国建筑材料科学研究总院有限公司 | Hot bending device for glass corrugated plate |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH091248A (en) * | 1995-06-14 | 1997-01-07 | S K R Kk | Multi-step drawing-in formation of corrugated sheet for package and forming die mechanism |
| CN103359919A (en) * | 2013-06-26 | 2013-10-23 | 中国建筑材料科学研究总院 | Glass hot-bending die as well as manufacturing method and application thereof |
| CN107867793A (en) * | 2017-10-31 | 2018-04-03 | 广东欧珀移动通信有限公司 | Bend glass cover plate, the preparation method of bend glass cover plate and mobile terminal |
| CN211111696U (en) * | 2019-11-12 | 2020-07-28 | 中国建筑材料科学研究总院有限公司 | Hot bending device for glass corrugated plate |
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