CN109851210B - Processing device and processing method for multi-curved-surface bent toughened glass - Google Patents

Processing device and processing method for multi-curved-surface bent toughened glass Download PDF

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CN109851210B
CN109851210B CN201910272232.5A CN201910272232A CN109851210B CN 109851210 B CN109851210 B CN 109851210B CN 201910272232 A CN201910272232 A CN 201910272232A CN 109851210 B CN109851210 B CN 109851210B
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glass
furnace
quenching
curved
roller
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CN109851210A (en
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郑普旺
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Jiayuguan Tianbao Hot Bending Glass Technology Co ltd
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Jiayuguan Tianbao Hot Bending Glass Technology Co ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/50Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57Improving the yield, e-g- reduction of reject rates

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Abstract

The invention discloses a processing device and a processing method for multi-curved bent toughened glass, belongs to the technical field of bent glass toughening, and aims to solve the problems of high manufacturing cost, low yield and low production efficiency of special equipment for multi-curved bent glass toughening. The device comprises a forming section, a quenching device, a cooling device and a softening furnace arranged at the front end of the forming section, wherein a roller in the furnace is arranged at the bottom of the softening furnace, the forming section comprises a gravity forming device, a group of conveying rails and a lifting table, the conveying rails are provided with moving parts, and the gravity forming device is arranged on the moving parts; at least two first long rollers and a first short roller are sequentially arranged above the lifting table, and the first long rollers are adjacent to the rollers in the furnace and are flush in height; the quenching device is a group which is arranged up and down symmetrically. The method comprises the steps of softening, forming, quenching and tempering and cooling. The invention combines the softening, shaping, quenching and tempering and cooling links of the multi-curved-surface bent glass, and realizes continuous, efficient and automatic production.

Description

Processing device and processing method for multi-curved-surface bent toughened glass
Technical Field
The invention belongs to the technical field of bent glass tempering, and particularly relates to a processing device and a processing method for multi-curved-surface bent tempered glass.
Background
The physical toughened glass is also called as quenched toughened glass, and is prepared by heating common flat glass in a heating furnace to a temperature close to the softening temperature of the glass, eliminating internal stress by self deformation, removing the glass from the heating furnace, and blowing high-pressure cold air to two sides of the glass by using a multi-head nozzle to quickly and uniformly cool the glass to room temperature. After the tempering treatment, the surface of the glass forms uniform compressive stress, while the inside forms tensile stress, so that the bending resistance and impact resistance of the glass are improved, and the strength of the glass is about more than four times that of common annealed glass. The toughened glass can not be subjected to any cutting, grinding and other processing or damaged, otherwise, the uniform compressive stress balance is destroyed to 'crush bones', so that the toughened glass with special shapes is immediately subjected to hot bending forming and needs one-time processing forming, and cannot be subjected to grinding processing in the follow-up process, the requirement on the whole production process is extremely high, and the small shape difference can cause the finished product to become a 'defective product' which does not meet the order requirement.
The production methods of glass hot-bending toughened glass in the prior art have two types: firstly heating glass in a furnace to enable the glass to reach deformation temperature, then conveying the deformable glass into an air grid through a roll shaft, and performing toughening after obtaining a required shape by bending and forming through the movement of the roll shaft, wherein the equipment cost is high; the hot bending forming mechanism has strict manufacturing requirements and great difficulty; the bending degree of the produced glass often cannot meet the requirement, and some bent glass with special shapes cannot be manufactured. The other is to adopt a mould, put the hot bent toughened glass on the prepared mould, put the hot bent toughened glass into a hearth for heating and then bend and shape, and then convey the hot bent toughened glass into an air grid for cooling and toughening; but the problem of movement in the high-temperature state in the hearth is difficult to solve; and the hot bending tempering furnace can not continuously produce because the hot bending tempering furnace is required to be conveyed into the air grid after the furnace is opened, and the production efficiency is low.
Disclosure of Invention
The invention aims to provide a processing device for multi-curved bent toughened glass, which aims to solve the problems of high manufacturing cost and low yield of special equipment for multi-curved bent glass tempering.
The invention further aims to provide a processing method of the multi-curved bent tempered glass, which aims to solve the problems of discontinuous production and low efficiency of multi-curved bent glass tempering.
In order to solve the problems, the technical scheme of the invention is as follows:
the processing device for the multi-curved-surface bent toughened glass comprises a forming section, a quenching device, a cooling device, a softening furnace arranged at the front end of the forming section, an in-furnace roller arranged at the bottom of the softening furnace, and a plurality of conveying rails and a lifting table, wherein the forming section comprises a gravity forming device, the conveying rails are provided with moving parts, and the gravity forming device is arranged on the moving parts; at least two first long rollers and a first short roller are sequentially arranged above the lifting table, and the first long rollers are adjacent to the rollers in the furnace and are flush in height; the quenching device is a group which is vertically and symmetrically arranged, one end of the transportation rail is positioned between the first long rolling shaft and the first short rolling shaft, the other end of the transportation rail passes through the hollow position of the quenching device and extends to the upper part of the cooling device, and the width between the transportation rail groups is larger than the length of the first short rolling shaft;
the gravity forming device comprises a frame, two groups of support rods, two groups of deformable support rods and three spacing rods; the support rods are symmetrically arranged below the frame, and the lowest points of the deformable support rods are connected with the upper surfaces of the support rods; the spacing rods are arranged in the frame at intervals; two ends of the deformable support bar are symmetrically arranged on the adjacent spacing bars; shown in fig. 5.
The processing device for the multi-curved-surface bent toughened glass comprises a forming section, a quenching device, a cooling device, a softening furnace arranged at the front end of the forming section, an in-furnace roller arranged at the bottom of the softening furnace, and a plurality of conveying rails and a lifting table, wherein the forming section comprises a gravity forming device, the conveying rails are provided with moving parts, and the gravity forming device is arranged on the moving parts; at least two first long rollers and a first short roller are sequentially arranged above the lifting table, and the first long rollers are adjacent to the rollers in the furnace and are flush in height; the quenching device is a group which is vertically and symmetrically arranged, one end of the transportation rail is positioned between the first long rolling shaft and the first short rolling shaft, the other end of the transportation rail passes through the hollow position of the quenching device and extends to the upper part of the cooling device, and the width between the transportation rail groups is larger than the length of the first short rolling shaft;
the gravity forming device comprises a frame, two groups of support rods, two groups of deformable support rods and two groups of spacing rods; the support rods are symmetrically arranged below the frame, and the lowest points of the deformable support rods are connected with the upper surfaces of the support rods; the spacing rods are arranged in the frame at intervals; the two ends of the deformable support bars are symmetrically arranged on the group of spacing bars; shown in fig. 6.
Further, a protruding rod protruding upwards is arranged between the two spacing rods positioned in the middle of the frame; shown in fig. 7.
Further, a top support bar 26 protruding upward is provided between the ends of the two spacer bars 24 located in the middle of the frame 21; fig. 8 shows the same.
Further, the cooling device comprises a second short roller and a second long roller which are sequentially arranged on the lifting supporting table, and the length of the second short roller is smaller than the inter-group width of the conveying rail.
Further, a sensor is also arranged on the transportation rail, and the sensor is arranged at the position of the transportation rail positioned at the middle and rear section in the quenching device; limiting blocks are arranged at two ends of the conveying track.
Further, the quenching device comprises at least two groups of air distribution plates which are arranged up and down symmetrically, a plurality of air blowing openings are arranged on the air distribution plates, and air filtering nets are arranged on the surfaces of the air blowing openings.
A processing method of multi-curved toughened glass comprises the following steps:
A. softening:
opening a furnace door of the softening furnace, placing glass on a roller in the furnace, closing the furnace door, ensuring the furnace temperature to be 640-670 ℃, softening the glass for 2-5 min, and slowly moving the roller in the furnace forward until one end moves out of the softening furnace to contact with the first long roller;
B. and (3) forming:
the glass is transported to the first long roller, then transported to the first short roller, the first short roller is arranged according to the shape of the gravity forming device, the first short roller can be in a plurality of sections at intervals, the lifting table falls down, two ends of the glass are contacted with the gravity forming device, the glass on the gravity forming device moves along with the moving part on the transportation track towards the quenching device, naturally falls under the action of gravity in the moving process, is formed for 5s-10s, and is formed when the glass just falls to the deformable supporting bar, the moving part drives the formed bent glass just to enter the quenching device, and the deformable supporting bar can be made of various materials as long as the requirements of high temperature resistance, deformability and surface smoothness are met;
C. quenching and tempering:
the formed bent glass enters the quenching device, the air distribution plates which are arranged up and down symmetrically cool the bent glass through the air blowing openings, when the moving part moves to the middle position of the quenching device, the moving part is controlled to reciprocate back and forth on the conveying track, the reciprocating motion can be controlled manually or measured by a sensor, signals are transmitted to a controller to realize automatic control, only the relative translation between the bent glass and the quenching device is realized, and the tempering is completed at the same time of rapid cooling;
further, the method further comprises a cooling step, wherein the toughened glass enters a cooling device along the conveying track after the quenching tempering step, the lifting supporting table is lifted, the toughened glass is contacted with a second short roller, the second short roller is arranged according to the shape of the gravity forming device, corresponds to the first short roller and can be in a plurality of sections at intervals, and the toughened glass is conveyed to the second long roller for blowing cooling or natural cooling.
Further, in the quenching tempering step, the blowing time is controlled to be 30s-90s, the blowing distance is controlled to be 12mm-60mm, and the wind pressure is controlled to be 3200Pa-100Pa.
The beneficial effects of the invention are as follows:
(1) According to the device, continuous production of multi-curved toughened glass is realized through the devices corresponding to the four-section process, and slow movement of the glass is realized through the additionally arranged rollers in the furnace at the bottom of the softening furnace, so that on one hand, the glass is heated and softened more uniformly, and on the other hand, the glass is slowly transported out to be connected with the forming section, so that integrated production is realized; the softened glass is transported to the first short roller through the first long roller, and because the length of the first short roller is shorter than the distance between the transport track groups, two ends of the glass naturally fall on a gravity forming device arranged on a moving part, a lifting table is controlled to fall, the moving part moves to the next procedure on the transport track, in the process, the softened glass is naturally formed under the action of gravity to form a curved surface, the forming process and the transport process are combined, and the whole production process is organically combined; controlling the formed bent glass to reciprocate back and forth in the quenching process, forming prestress on the surface of the glass, ensuring that the glass is not burst, and completing glass tempering when the quenching is completed; transporting the tempered glass to a cooling device again by means of a transporting rail for cooling;
(2) The gravity forming device skillfully combines the supporting rod and the deformable supporting rod, plays a role in supporting the softened glass when naturally falls, positions the supporting rod, controls the length of the deformable supporting rod, reaches the maximum length of the deformable supporting rod when the lowest point of the deformable supporting rod is connected with the upper surface of the supporting rod, can be adjusted to be short in use, and is matched with lower softening temperature, the lower glass deformation degree realizes the curved surface curved glass forming with larger curvature, and due to the arrangement of the deformable supporting rod, the shape of the gravity forming device is convenient to adjust, and the shape conforms to the natural shape of the falling under the action of the dead weight of the glass to form more streamline curved surface curved glass;
(3) The arrangement of the protruding rod and the top support rod provides two other processing shapes for the gravity forming device, so that the shape of the multi-curved-surface bent glass is widened, but the position of a first short roller matched with the multi-curved-surface bent glass in use is slightly lower, one end of the first long roller is flush with a roller in a furnace, the other end of one end of the first long roller is flush with the highest point of the protruding rod and the top support rod, and the softened glass can be ensured to smoothly fall on the gravity forming device when the lifting table falls;
(4) The lifting supporting table of the cooling device can well adjust the heights of the second short rolling shaft and the second long rolling shaft so as to receive the tempered glass and convey the tempered glass to a cooling link;
(5) The sensor is arranged to realize the automation of the back and forth reciprocating motion of the formed bent glass in the quenching process, when the moving part is contacted with the sensor, the moving part is controlled to drive the formed bent glass to reciprocate back and forth, and the formed bent glass is continuously moved to the rear end to a cooling link after the quenching set time is reached; the limiting block ensures that the moving part always moves on the transportation rail; the air filter net can purify the air outlet of the air outlet, so that dust in the air outlet is prevented from falling on the glass which is not completely tempered, and the quality of the glass is prevented from being influenced;
(6) The method combines the softening, forming, quenching tempering and cooling links of the multi-curved-surface bent glass to realize continuous, efficient and automatic production, and the glass slowly moves in the furnace in the softening link to ensure that the glass is heated uniformly and fully, so that no obvious temperature difference exists among all areas, thereby laying a foundation for uniform streamline forming of the forming link; the forming section and the transportation process are combined into a whole, gravity sedimentation forming is utilized, a quenching tempering link just enters when forming is completed, the quenching tempering link controls the formed bent glass to reciprocate back and forth, prestress is better formed on the surface of the glass, the glass is prevented from cracking, the yield of a finished product is improved, and the quality of the product is ensured; the final cooling link can adopt air cooling or natural cooling, and finished products are transported out through the second short rolling shaft and the second long rolling shaft, so that the degree of automation is improved; the method can produce various curved toughened glass with different shapes of curved surface bends, multi-curved surface bends, irregular curved surface bends and the like according to the demands of customers, and has good market response.
Drawings
FIG. 1 is a schematic structural view of a processing device for multi-curved bent tempered glass;
FIG. 2 is a schematic view showing an operation state of a processing apparatus for multi-curved tempered glass
FIG. 3 is a schematic diagram of a forming section in a processing device for multi-curved bent tempered glass;
FIG. 4 is a schematic view of a gravity forming device in a multi-curved toughened glass processing apparatus;
FIG. 5 is a schematic view showing another structure of a gravity forming device in a processing device of multi-curved bent tempered glass;
FIG. 6 is a schematic view showing another structure of a gravity forming device in a processing device of multi-curved bent tempered glass;
FIG. 7 is a schematic view showing another structure of a gravity forming device in a processing device of multi-curved bent tempered glass;
FIG. 8 is a schematic view showing another structure of a gravity forming device in a processing device of multi-curved bent tempered glass;
FIG. 9 is a schematic structural view of a quenching apparatus in a processing apparatus for multi-curved tempered glass;
FIG. 10 is a schematic view of the lower part of the quenching apparatus in the processing apparatus of multi-curved bent tempered glass;
FIG. 11 is an enlarged view of a portion A of FIG. 10;
fig. 12 is a schematic structural view of a cooling device in a processing device for multi-curved tempered glass.
The reference numerals are as follows: 1. a softening furnace; 11. a roller in the furnace; 2. a gravity molding device; 21. a frame; 22. a support rod; 23. a deformable support bar; 24. a spacer bar; 25. a protruding rod; 26. a top support bar; 3. a quenching device; 31. a wind distribution plate; 32. blowing an air port; 33. a gas filtering net; 4. a cooling device; 41. a second short roller; 42. a second long roller; 43. lifting the supporting table; 5. a transport rail; 51. a moving part; 52. a sensor; 53. a limiting block; 6. a lifting table; 61. a first long roller; 62. a first short roller.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
In the present invention, the sensor may be a variety of sensors such as a pressure sensor and a photoelectric sensor, and may be a sensor capable of measuring and outputting a signal that the moving part on the transportation rail is in contact with.
The device of the invention is different according to the order requirement in each embodiment, and the difference is that the gravity forming device is different, and the general technical characteristics of the rest parts are as shown in figures 1-3 and 9-12:
the device for processing the multi-curved-surface bent toughened glass comprises a forming section, a quenching device 3, a cooling device 4 and a softening furnace 1 arranged at the front end of the forming section, wherein a furnace roller 11 is arranged at the bottom of the softening furnace 1; the molding section comprises a gravity molding device 2, a group of conveying rails 5 and a lifting table 6; limiting blocks 53 are arranged at two ends of the transportation rail 5; the transporting rail 5 is also provided with a sensor 52, and the sensor 52 is arranged at the position of the transporting rail 5 positioned at the middle and rear section in the quenching device 3; the transport rail 5 is provided with a moving part 51, the moving part 51 is provided with a gravity forming device 2, and the gravity forming device 2 can be replaced according to different order demands; at least two first long rollers 61 and a first short roller 62 are sequentially arranged above the lifting table 6, and the first long rollers 61 are adjacent to the furnace inner rollers 11 and are flush in height, so that glass can be conveniently transported after being softened; the quenching device 3 is a group which is arranged up and down symmetrically, the quenching device 3 comprises at least two groups of air distribution plates 31 which are arranged up and down symmetrically, a plurality of air blowing openings 32 are arranged on the air distribution plates 31, and air filtering nets 33 are arranged on the surfaces of the air blowing openings 32, so that quenching tempering is realized by up and down air blowing;
one end of the transporting rail 5 is positioned between the first long roller 61 and the first short roller 62, and before operation, the transporting rail 5 and the moving part 51 arranged thereon are lower than the first long roller 61 and the first short roller 62; when the lifting platform 6 descends in operation, the conveying rail 5 and the moving part 51 arranged on the conveying rail are higher than the first short rolling shafts 62 and lower than the first long rolling shafts 61; the other end of the conveying rail 5 passes through the hollow position of the quenching device 3 and extends to the upper part of the cooling device 4; the width between groups of the transportation rails 5 is larger than the length of the first short rolling shafts 62, so that the first short rolling shafts 62 can conveniently rise and fall; the cooling device 4 comprises a second short roller 41 and a second long roller 42 which are sequentially arranged on the lifting supporting table 43, and the length of the second short roller 41 is smaller than the inter-group width of the conveying track 5, so that the second short roller 41 can conveniently lift.
Example 1
As shown in fig. 4, a gravity forming device in a processing device for multi-curved bent tempered glass, the gravity forming device 2 comprises a frame 21, a group of support rods 22 and a group of deformable support rods 23, the support rods 22 are symmetrically arranged below the frame 21, two spacing rods 24 are arranged on the frame 21, the distance between the spacing rods 24 is larger than the length of a first short roller 62 and the length of a second short roller 41, two ends of the deformable support rods 23 are symmetrically arranged on the spacing rods 24, the lowest point of the deformable support rods 23 is connected with the upper surface of the support rods 22, and the deformable support rods 23 select chains.
The method for processing the multi-curved surface bent tempered glass by using the device comprises the following steps:
in this example, the glass was 1 piece of flat glass having a thickness of 5 mm.
A. Softening:
the furnace door of the softening furnace 1 is opened, glass is placed on the furnace inner roller 11, the furnace door is closed, the furnace temperature is ensured to be 670 ℃, the glass is softened for 2 minutes, and the furnace inner roller slowly moves forwards until one end moves out of the softening furnace 1 to be in contact with the first long roller 61.
B. And (3) forming:
after the glass is transported to the first long roller 61, the transportation speed is increased, the glass is transported to the first short roller 62, the lifting table 6 drops, two ends of the glass are contacted with the spacing rods 24 of the gravity forming device 2, the gravity forming device 2 is arranged on the moving part 51, the glass on the spacing rods 24 moves along with the moving part 51 on the transportation track 5 to the quenching device 3, the glass naturally falls under the action of gravity in the moving process, the forming time is 5 seconds, the glass is formed when just falling to the deformable supporting bar 23, the formed glass is a curved bent glass, and the moving part 51 drives the formed bent glass to just enter the quenching device 3.
C. Quenching and tempering:
the formed bent glass enters the quenching device 3, the sensor 52 is triggered, the sensor 52 transmits signals to the controller, the reciprocating motion of the moving part 51 on the conveying track 5 is controlled, namely, the relative translation between the formed bent glass and the quenching device 3 is controlled, the air distribution plate 31 which is arranged vertically symmetrically carries out rapid cooling, blowing and cooling on the formed bent glass through the air blowing opening 32, the blowing time is controlled to be 30 seconds, the air pressure is controlled to be 3200Pa, the blowing distance is controlled to be 12mm, and the tempering is completed while the rapid cooling is carried out.
D. Cooling
The toughened glass enters the cooling device 4 along the conveying track 5, the lifting supporting table 43 is lifted, the toughened glass is contacted with the second short rolling shaft 41, and the toughened glass is conveyed onto the second long rolling shaft 42 and naturally cooled while being conveyed.
The device and the method can be used for producing more than 400 single-curved-surface bent toughened glass with the thickness of 5mm by three shifts per day, basically avoid the phenomenon of burst in the quenching tempering link or the cooling process, save the time for cleaning the burst glass fragments and greatly improve the production efficiency.
The defects of the produced single-curved-surface bent toughened glass such as striae, pits, white fog and spherical surfaces are almost absent, the optical performance is good, the product percent of pass is as high as 95% after multiple batches of spot inspection, the thinner and larger-width curved glass belongs to the field of 5 mm-thick curved glass, the more difficult the production quality of the curved glass is controlled, the more difficult the optical performance requirement is realized, the equipment matching method in the embodiment is verified in the production of a large number of orders, the inspection requirements of the optical performance and the mechanical performance can be met on the basis of ensuring that the glass is not burst, and the economic effect is remarkable.
Example 2
As shown in fig. 5, a gravity forming device in a processing device for multi-curved bent tempered glass, the gravity forming device 2 comprises a frame 21, two groups of support rods 22 and two groups of deformable support rods 23, three spacing rods 24 on the frame 21 are respectively and symmetrically arranged between the three spacing rods 24 below the frame 21, two ends of the deformable support rods 23 are symmetrically arranged on adjacent spacing rods 24, the spacing between the spacing furthest spacing rods 24 is greater than the length of a first short roller 62 and the length of a second short roller 41, a plurality of groups of intermittent second short rollers 41 can be arranged, the lowest points of the deformable support rods 23 are connected with the upper surfaces of the corresponding support rods 22 in cooperation, and the deformable support rods 23 adopt thicker high-temperature resistant ropes.
The method for processing the multi-curved surface bent tempered glass by using the device comprises the following steps: in this example, the glass was 1 sheet of plate glass having a thickness of 6 mm.
A. Softening:
the furnace door of the softening furnace 1 is opened, glass is placed on the furnace inner roller 11, the furnace door is closed, the furnace temperature is guaranteed to be 665 ℃, the glass is softened for 2.5min, and the furnace inner roller slowly moves forwards until one end moves out of the softening furnace 1 to be in contact with the first long roller 61.
B. And (3) forming:
after the glass is transported to the first long roller 61, the transportation speed is increased, the glass is transported to the first short roller 62 which is divided into two sections, the lifting table 6 drops, the two ends and the middle of the glass are contacted with the spacing rods 24 of the gravity forming device 2, the gravity forming device 2 is arranged on the moving part 51, the glass on the spacing rods 24 moves along with the moving part 51 on the transportation track 5 towards the quenching device 3, naturally falls under the action of gravity in the moving process, is formed for 6s, the glass is formed until the glass just falls to the deformable supporting bar 23, the formed glass is a piece of hyperboloid bent glass, and the moving part 51 drives the formed bent glass to just enter the quenching device 3.
C. Quenching and tempering:
when the formed bent glass enters the quenching device 3, the moving part 51 is manually controlled to reciprocate on the conveying track 5 along with the moving part 51 when moving to the middle position of the quenching device 3, namely, the formed bent glass and the quenching device 3 are controlled to relatively translate, the air distribution plates 31 which are arranged vertically symmetrically cool the air distribution plates rapidly through the air blowing openings 32, the air blowing time is controlled to be 40s, the air pressure is controlled to be 3000Pa, the air blowing distance is 18mm, and the tempering is completed when the air is rapidly cooled.
D. And (3) cooling:
the toughened glass enters the cooling device 4 along the conveying track 5, the lifting supporting table 43 is lifted, the toughened glass is contacted with the second short rolling shaft 41, and the toughened glass is conveyed onto the second long rolling shaft 42 and naturally cooled while being conveyed.
The device and the method can be used for producing more than 400 single-curved-surface bent toughened glass with the thickness of 6mm by three shifts per day, basically avoid the phenomenon of burst in the quenching tempering link or the cooling process, save the time for cleaning the burst glass fragments and greatly improve the production efficiency.
The defects of the produced hyperboloid bent toughened glass, such as the striae, the pits, the white fog and the spherical surface are almost absent, the optical performance is good, the product percent of pass is as high as 95% after multiple batches of spot inspection, the thinner and larger curved glass belongs to rare curved glass with the thickness of 6mm, the more difficult the production quality of the curved glass is controlled, the more difficult the optical performance requirement is realized, the equipment matching method in the embodiment is verified in the production of a large number of orders, the inspection requirements of the optical performance and the mechanical performance can be met on the basis of ensuring that the glass is not burst, and the economic effect is remarkable.
Example 3
As shown in fig. 6, a gravity forming device in a processing device for multi-curved bent tempered glass, the gravity forming device 2 comprises a frame 21, two groups of support rods 22 and two groups of deformable support rods 23, wherein the frame 21 is provided with two groups of spacing rods 24, the support rods 22 are symmetrically arranged at the position, located between the two groups of spacing rods 24, below the frame 21, the spacing between the spacing rods 24 with the farthest distance is larger than the length of a first short roller 62 and the length of a second short roller 41, multiple groups of intermittent second short rollers 41 can be arranged, two ends of the deformable support rods 23 are symmetrically arranged on each group of spacing rods 24 respectively in cooperation, and the lowest point of the deformable support rods 23 is connected with the upper surface of the support rods 22.
The method for processing the multi-curved surface bent tempered glass by using the device comprises the following steps: in this example, the glass was 2 pieces of plate glass having a thickness of 10 mm.
A. Softening:
the furnace door of the softening furnace 1 is opened, glass is placed on the furnace inner roller 11, the furnace door is closed, the furnace temperature is guaranteed to be 660 ℃, the glass is softened for 3min, and the furnace inner roller slowly moves forwards until one end moves out of the softening furnace 1 to be in contact with the first long roller 61.
B. And (3) forming:
after the glass is transported to the first long roller 61, the transportation speed is increased, the glass is transported to the first short roller 62 which is divided into two sections, the lifting table 6 drops, two ends of two pieces of glass are respectively contacted with the ends of the two groups of spacing rods 24 of the gravity forming device 2, the glass on the spacing rods 24 moves towards the quenching device 3 along with the moving part 51 on the transportation track 5 due to the fact that the gravity forming device 2 is arranged on the moving part 51, the glass naturally falls down due to the action of gravity in the moving process, the glass is formed for 7 seconds, the formed glass is two pieces of bent glass with single curved surfaces when the two pieces of glass just fall to the deformable supporting bar 23, and the moving part 51 drives the formed bent glass to just enter the quenching device 3.
C. Quenching and tempering:
the formed bent glass enters the quenching device 3, the sensor 52 is triggered, the sensor 52 transmits signals to the controller, the reciprocating motion of the moving part 51 on the conveying track 5 is controlled, namely, the relative translation between the formed bent glass and the quenching device 3 is controlled, the air distribution plate 31 which is arranged vertically symmetrically carries out rapid cooling, blowing and cooling on the formed bent glass through the air blowing opening 32, the blowing time is controlled to be 60 seconds, the air pressure is controlled to be 1000Pa, the blowing distance is 30mm, and the tempering is completed while the rapid cooling is carried out.
D. Cooling
The toughened glass enters the cooling device 4 along the conveying track 5, the lifting supporting table 43 is lifted, the toughened glass is contacted with the second short rolling shaft 41, and the toughened glass is conveyed to the second long rolling shaft 42 to be conveyed while being blown and cooled by the blowing devices arranged at the two ends of the second long rolling shaft 42.
The device and the method can be used for producing more than 600 single-curved-surface bent toughened glass with the thickness of 10mm by three shifts per day, basically avoid the phenomenon of burst in the quenching tempering link or the cooling process, save the time for cleaning the burst glass fragments and greatly improve the production efficiency.
The defects of the produced single-curved toughened glass such as striae, pits and white fog are almost absent, the optical performance is good, the product percent of pass is up to 97% through multiple batches of spot inspection, the equipment matching method in the embodiment is verified in the production of a large number of orders, the inspection requirements of the optical performance and the mechanical performance can be met on the basis of ensuring that the glass is not burst, and the economic effect is remarkable.
Example 4
As shown in fig. 7, a gravity forming device in a processing device for multi-curved bent tempered glass, the gravity forming device 2 comprises a frame 21, two groups of support rods 22 and two groups of deformable support rods 23, wherein the frame 21 is provided with two groups of spacing rods 24, the support rods 22 are symmetrically arranged at the position, located in the middle of the two groups of spacing rods 24, below the frame 21, the two ends of the deformable support rods 23 are symmetrically arranged on each group of spacing rods 24 respectively, the spacing between the spacing rods 24 with the farthest spacing is larger than the length of a first short roller 62 and the length of a second short roller 41, a plurality of groups of intermittent second short rollers 41 can be arranged, the lowest points of the deformable support rods 23 are connected with the upper surface of the support rods 22 in a matching way, and a convex rod 25 protruding upwards is arranged between the two spacing rods 24 located in the middle of the frame 21.
The method for processing the multi-curved surface bent tempered glass by using the device comprises the following steps: in this example, the glass was 1 sheet of 15mm thick plate glass.
B. Softening:
the furnace door of the softening furnace 1 is opened, glass is placed on the furnace inner roller 11, the furnace door is closed, the furnace temperature is ensured to be 650 ℃, the glass is softened for 4 minutes, and the furnace inner roller slowly moves forwards until one end moves out of the softening furnace 1 to be in contact with the first long roller 61.
B. And (3) forming:
the glass is transported to the first long roller 61 and then transported to the first short roller 62 which is divided into three sections, at this time, the highest point of the protruding rod is flush with or slightly lower than the upper surface of the first short roller 62, the glass motion is not affected, the lifting table 6 drops, the glass is firstly contacted with the protruding rod 25 of the gravity forming device 2, and quickly falls on the two groups of spacing rods 24, the glass on the gravity forming device 2 moves along with the moving part 51 on the transporting track 5 to the quenching device 3 due to the fact that the gravity forming device 2 is arranged on the moving part 51, naturally falls under the action of gravity in the moving process, and is formed for 8s until the glass just falls to the deformable supporting bar 23, the formed glass is hyperboloid bent glass with the protruding top, and the moving part 51 drives the formed bent glass to just enter the quenching device 3.
C. Quenching and tempering:
the formed bent glass enters the quenching device 3, the sensor 52 is triggered, the sensor 52 transmits signals to the controller, the reciprocating motion of the moving part 51 on the conveying track 5 is controlled, namely the relative translation between the formed bent glass and the quenching device 3 is controlled, the air distribution plate 31 which is arranged vertically symmetrically carries out rapid cooling, blowing and cooling on the formed bent glass through the air blowing opening 32, the blowing time is controlled to be 75 seconds, the air pressure is controlled to be 200Pa, the blowing distance is controlled to be 50mm, and the tempering is completed while the rapid cooling is carried out.
D. And (3) cooling:
the toughened glass enters the cooling device 4 along the conveying track 5, the lifting supporting table 43 is lifted, the toughened glass is contacted with the second short rolling shaft 41, and the toughened glass is conveyed to the second long rolling shaft 42 to be conveyed while being blown and cooled by the blowing devices arranged at the two ends of the second long rolling shaft 42.
The device and the method can be used for producing more than 300 single-curved-surface bent toughened glass with the thickness of 15mm by three shifts per day, basically avoid the phenomenon of burst in the quenching tempering link or the cooling process, save the time for cleaning the burst glass fragments and greatly improve the production efficiency.
The produced hyperboloid bent toughened glass with raised top has almost no defects of striae, pits and white fog, has good optical performance, and has the product percent of pass of 97% through multiple batches of spot check, and the equipment matching method in the embodiment is verified in the production of a large number of orders, so that the inspection requirements of the optical performance and the mechanical performance can be met on the basis of ensuring that the glass is not burst, the economic effect is obvious, the customer feedback is good, and the effect completely reaches the design drawing requirement after installation.
Example 5
As shown in fig. 8, a gravity forming device in a processing device for multi-curved bent tempered glass, the gravity forming device 2 comprises a frame 21, two groups of support rods 22 and two groups of deformable support rods 23, wherein the frame 21 is provided with two groups of spacing rods 24, the support rods 22 are symmetrically arranged at the position, located in the middle of the two groups of spacing rods 24, below the frame 21, of the frame 21, the two ends of the deformable support rods 23 are symmetrically arranged on each group of spacing rods 24 respectively, the spacing between the spacing rods 24 with the farthest spacing is larger than the length of a first short roller 62 and the length of a second short roller 41, a plurality of groups of intermittent second short rollers 41 can be arranged, the lowest points of the deformable support rods 23 are connected with the upper surfaces of the support rods 22 in a matching way, top support rods 26 protruding upwards are arranged between the ends of the two spacing rods 24 located in the middle of the frame 21, and the top support rods can be arc-shaped or can be in a folded shape or the like.
The method for processing the multi-curved surface bent tempered glass by using the device comprises the following steps: in this example, the glass was 1 piece of plate glass having a thickness of 19 mm.
A. Softening:
the furnace door of the softening furnace 1 is opened, glass is placed on the furnace inner roller 11, the furnace door is closed, the furnace temperature is guaranteed to be 640 ℃, the glass is softened for 5 minutes, and the furnace inner roller slowly moves forwards until one end moves out of the softening furnace 1 to be in contact with the first long roller 61.
B. And (3) forming:
the glass is transported to the first long roller 61, then transported to the first short roller 62 which is divided into two sections, at this time, because the highest point of the top supporting rod 26 is flush with or slightly lower than the upper surface of the first short roller 62, the glass motion is not affected, the lifting table 6 drops, the glass is firstly contacted with the top supporting rod 26 of the gravity forming device 2, and quickly falls on the two groups of spacing rods 24, because the gravity forming device 2 is arranged on the moving part 51, the glass on the gravity forming device 2 moves along with the moving part 51 on the transporting track 5 to the quenching device 3, naturally falls under the action of gravity in the moving process, and is formed for 10s until the glass just falls to the deformable supporting rod 23, the formed glass is the custom-made requirement of the top convex special-shaped hyperboloid bent glass at the two side ends, and the moving part 51 drives the formed bent glass just to enter the quenching device 3.
C. Quenching and tempering:
the formed bent glass enters the quenching device 3, the sensor 52 is triggered, the sensor 52 transmits signals to the controller, the reciprocating motion of the moving part 51 on the conveying track 5 is controlled, namely the relative translation between the formed bent glass and the quenching device 3 is controlled, the air distribution plate 31 which is arranged vertically symmetrically carries out rapid cooling, blowing and cooling on the formed bent glass through the air blowing opening 32, the blowing time is controlled to be 90s, the air pressure is 100Pa, the blowing distance is 60mm, and the tempering is completed at the same time of rapid cooling.
D. And (3) cooling:
the toughened glass enters the cooling device 4 along the conveying track 5, the lifting supporting table 43 is lifted, the toughened glass is contacted with the second short rolling shaft 41, and the toughened glass is conveyed to the second long rolling shaft 42 to be conveyed while being blown and cooled by the blowing devices arranged at the two ends of the second long rolling shaft 42.
The device and the method can be used for producing more than 200 single-curved-surface bent toughened glass with the thickness of 19mm by three shifts per day, basically avoid the phenomenon of burst in the quenching tempering link or the cooling process, save the time for cleaning the burst glass fragments and greatly improve the production efficiency.
The defects of the convex special-shaped hyperboloid bent toughened glass at the top of the end parts of the two sides of the produced glass are almost eliminated, the optical performance is good, the product percent of pass is up to 98% through multiple batches of spot check, the equipment matching method in the embodiment is verified in the production of a large number of orders, the inspection requirements of the optical performance and the mechanical performance can be met on the basis of ensuring that the glass is not burst, the economic effect is obvious, and because the special-shaped glass has higher requirements on streamline, whether the transition section has natural streamline aesthetic feeling after molding is the key point of the requirements of customers, the customers are out of order when the finished product is delivered, and the effect after installation completely reaches the requirements of design drawings.

Claims (9)

1. The utility model provides a curved toughened glass's of many curved surfaces processingequipment, includes shaping section, rapid cooling device (3), cooling device (4), its characterized in that: the device comprises a forming section, a softening furnace (1) arranged at the front end of the forming section, an in-furnace roller (11) is arranged at the bottom of the softening furnace (1), the forming section comprises a gravity forming device (2), a group of conveying rails (5) and a lifting table (6), moving parts (51) are arranged on the conveying rails (5), and the gravity forming device (2) is arranged on the moving parts (51); at least two first long rollers (61) and first short rollers (62) are sequentially arranged above the lifting table (6), and the first long rollers (61) are adjacent to the furnace inner rollers (11) and are flush in height; the quenching device (3) is a group which is vertically and symmetrically arranged, one end of the transportation rail (5) is positioned between the first long rolling shaft (61) and the first short rolling shaft (62), the other end of the transportation rail (5) passes through the hollow position of the quenching device (3) and extends to the upper part of the cooling device (4), and the width between the transportation rail (5) groups is larger than the length of the first short rolling shaft (62);
the gravity forming device (2) comprises a frame (21), two groups of support rods (22), two groups of deformable support rods (23) and three spacing rods (24); the support rods (22) are symmetrically arranged below the frame (21), and the lowest points of the deformable support rods (23) are connected with the upper surfaces of the support rods (22); the spacing rods (24) are arranged in the frame (21) at intervals; the two ends of the deformable support bar (23) are symmetrically arranged on the adjacent spacing bars (24).
2. The utility model provides a curved toughened glass's of many curved surfaces processingequipment, includes shaping section, rapid cooling device (3), cooling device (4), its characterized in that: the device comprises a forming section, a softening furnace (1) arranged at the front end of the forming section, an in-furnace roller (11) is arranged at the bottom of the softening furnace (1), the forming section comprises a gravity forming device (2), a group of conveying rails (5) and a lifting table (6), moving parts (51) are arranged on the conveying rails (5), and the gravity forming device (2) is arranged on the moving parts (51); at least two first long rollers (61) and first short rollers (62) are sequentially arranged above the lifting table (6), and the first long rollers (61) are adjacent to the furnace inner rollers (11) and are flush in height; the quenching device (3) is a group which is vertically and symmetrically arranged, one end of the transportation rail (5) is positioned between the first long rolling shaft (61) and the first short rolling shaft (62), the other end of the transportation rail (5) passes through the hollow position of the quenching device (3) and extends to the upper part of the cooling device (4), and the width between the transportation rail (5) groups is larger than the length of the first short rolling shaft (62);
the gravity forming device (2) comprises a frame (21), two groups of support rods (22), two groups of deformable support rods (23) and two groups of spacing rods (24); the support rods (22) are symmetrically arranged below the frame (21), and the lowest points of the deformable support rods (23) are connected with the upper surfaces of the support rods (22); the spacing rods (24) are arranged in the frame (21) at intervals; the two ends of the deformable support bars (23) are symmetrically arranged on the group of spacing bars (24).
3. The apparatus for processing multi-curved toughened glass according to claim 2, wherein: a protruding rod (25) protruding upwards is arranged between two spacing rods (24) positioned in the middle of the frame (21).
4. The apparatus for processing multi-curved toughened glass according to claim 2, wherein: an upward-protruding top support bar (26) is arranged between the ends of the two spacing bars (24) positioned in the middle of the frame (21).
5. A multi-curved bent tempered glass processing apparatus according to any one of claims 1 to 4, wherein: the cooling device (4) comprises a second short roller (41) and a second long roller (42) which are sequentially arranged on the lifting supporting table (43), and the length of the second short roller (41) is smaller than the inter-group width of the conveying track (5).
6. The apparatus for processing multi-curved toughened glass according to claim 5, wherein: the conveying rail (5) is also provided with a sensor (52), and the sensor (52) is arranged at the position of the middle and rear section of the conveying rail (5) in the quenching device (3); limiting blocks (53) are arranged at two ends of the conveying track (5).
7. The apparatus for processing multi-curved toughened glass according to claim 6, wherein: the quenching device (3) comprises at least two groups of air distribution plates (31) which are arranged up and down symmetrically, a plurality of air blowing openings (32) are arranged on the air distribution plates (31), and air filtering nets (33) are arranged on the surfaces of the air blowing openings (32) up and down.
8. A method of processing multi-curved tempered glass using the apparatus of any one of claims 1 to 7, characterized in that: the method comprises the following steps:
A. softening:
opening a furnace door of the softening furnace (1), placing glass on a roller (11) in the furnace, closing the furnace door, ensuring the furnace temperature to be 640-670 ℃, softening the glass for 2-5 min, and slowly moving the roller in the furnace forward until one end moves out of the softening furnace (1) to be in contact with a first long roller (61);
B. and (3) forming:
the glass is transported to a first long roller (61) and then transported to a first short roller (62), the lifting table (6) drops, two ends of the glass are contacted with the gravity forming device (2), the glass on the gravity forming device (2) moves along with the moving part (51) on the transportation track (5) towards the quenching device (3), naturally falls under the action of gravity in the moving process, is formed for 5s-10s, and is formed when the glass just falls to the deformable supporting bar (23), and the moving part (51) drives the formed bent glass to just enter the quenching device (3);
C. quenching and tempering:
the formed bent glass enters the quenching device (3), the air distribution plates (31) which are arranged vertically symmetrically cool the bent glass rapidly through the air blowing openings (32), and when the moving part (51) moves to the sensor (52), the formed bent glass is controlled to reciprocate back and forth, namely, relatively translate with the quenching device (3), and tempering is completed while rapidly cooling.
9. The method for processing multi-curved toughened glass according to claim 8, wherein: the method further comprises a cooling step, wherein the tempered glass enters a cooling device (4) along a conveying track (5) after the quenching tempering step, a lifting supporting table (43) is lifted, the tempered glass is contacted with a second short rolling shaft (41), and the tempered glass is conveyed to a second long rolling shaft (42) for blowing cooling or natural cooling; in the quenching tempering step, the blowing time is controlled to be 30-90 s, the blowing distance is controlled to be 12-60 mm, and the wind pressure is controlled to be 3200-100 Pa.
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