CN109809678B - Processing device and processing method for L-shaped bent toughened glass - Google Patents
Processing device and processing method for L-shaped bent toughened glass Download PDFInfo
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- CN109809678B CN109809678B CN201910272235.9A CN201910272235A CN109809678B CN 109809678 B CN109809678 B CN 109809678B CN 201910272235 A CN201910272235 A CN 201910272235A CN 109809678 B CN109809678 B CN 109809678B
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- 239000005341 toughened glass Substances 0.000 title claims abstract description 84
- 238000012545 processing Methods 0.000 title claims abstract description 36
- 238000003672 processing method Methods 0.000 title abstract description 6
- 239000011521 glass Substances 0.000 claims abstract description 136
- 238000003825 pressing Methods 0.000 claims abstract description 77
- 238000001816 cooling Methods 0.000 claims abstract description 61
- 238000010791 quenching Methods 0.000 claims abstract description 61
- 230000000171 quenching effect Effects 0.000 claims abstract description 61
- 238000000034 method Methods 0.000 claims abstract description 35
- 238000005496 tempering Methods 0.000 claims abstract description 28
- 238000013003 hot bending Methods 0.000 claims abstract description 26
- 238000000748 compression moulding Methods 0.000 claims abstract description 23
- 238000005096 rolling process Methods 0.000 claims description 60
- 230000007704 transition Effects 0.000 claims description 36
- 238000007664 blowing Methods 0.000 claims description 35
- 238000009826 distribution Methods 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 22
- 238000009740 moulding (composite fabrication) Methods 0.000 abstract 2
- 238000000465 moulding Methods 0.000 description 22
- 238000005452 bending Methods 0.000 description 21
- 230000008569 process Effects 0.000 description 16
- 230000003287 optical effect Effects 0.000 description 13
- 230000007547 defect Effects 0.000 description 7
- 238000007689 inspection Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000005357 flat glass Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 206010040925 Skin striae Diseases 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 239000012634 fragment Substances 0.000 description 4
- 238000012797 qualification Methods 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 4
- 238000013519 translation Methods 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000005347 annealed glass Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
Abstract
The invention discloses a processing device and a processing method for L-shaped bent toughened glass, belongs to the technical field of bent glass toughening, and aims to solve the problems of no special equipment, discontinuous production and low efficiency of L-shaped bent glass. The device comprises an L-shaped compression molding device, a quenching device, a cooling device and a hot bending furnace arranged at the front end of the L-shaped compression molding device, wherein a roller in the furnace is arranged at the bottom of the hot bending furnace; an L-shaped pressing device matched with the L-shaped supporting device in shape is arranged above the L-shaped supporting device, and the quenching devices are symmetrically arranged. The method comprises the steps of softening, forming, quenching and tempering and cooling. The invention combines the softening, forming, quenching and tempering and cooling links of the L-shaped bent tempered glass, and realizes continuous and efficient production.
Description
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 L-shaped 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 after the toughening treatment can not be subjected to any cutting, grinding and other processing or damaged, otherwise, the toughened glass can be crushed into pieces due to the fact that uniform compressive stress balance is damaged, and therefore, the special-shaped glass is toughened immediately after hot bending forming.
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.
In the production of the L-shaped bent toughened glass with part of special requirements and small radian for forming the bend, special auxiliary forming equipment is needed, the bending radian meeting the order requirement is formed, then the toughening is performed, and to realize continuous production, the L-shaped bending die capable of forming the bend is considered to be combined with the whole production line.
Disclosure of Invention
The invention aims to provide a processing device for L-shaped bent toughened glass, which aims to solve the problem that no special equipment is used for toughening the L-shaped bent glass.
The invention further aims to provide a matched processing method of the processing device for the L-shaped bent toughened glass, so as to solve the problems of discontinuous production and low efficiency of the L-shaped bent toughened glass.
In order to solve the problems, the technical scheme of the invention is as follows:
the processing device of the L-shaped bent toughened glass comprises an L-shaped compression molding device, a quenching device, a cooling device and a hot bending furnace arranged at the front end of the L-shaped compression molding device, wherein a roller in the furnace is arranged at the bottom of the hot bending furnace; an L-shaped pressing device matched with the shape of the L-shaped supporting device is arranged above the L-shaped supporting device, 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, one end of the transportation track is positioned between the first long rolling shaft and the first short rolling shaft, the other end of the transportation track penetrates through the hollow position of the quenching device and extends to the upper part of the cooling device, and the width between the transportation track groups is larger than the length of the first short rolling shaft.
Further, the cooling device comprises a second short rolling shaft and a second long rolling shaft which are sequentially arranged at the rear end, the second short rolling shaft and the second long rolling shaft are arranged on the lifting supporting table, the length of the second short rolling shaft is smaller than the width between groups of the conveying track, and the upper surfaces of the second short rolling shaft and the second long rolling shaft are paved with the rolling protection device.
Further, the L-shaped supporting device comprises a lower frame and lower forming supporting plates, one side of the lower frame is provided with a group of lower forming supporting plates, one lower forming supporting plate and the lower frame are in the same plane, the other lower forming supporting plate is positioned below the lower frame and is vertical to the plane of the lower frame, and an L shape is formed between the lower forming supporting plates; the L-shaped pressing device comprises an upper frame, an upper forming pressing plate and a pressing rod, wherein the pressing rod is arranged on the upper frame, one side of the upper frame is provided with a group of upper forming pressing plates, one upper forming pressing plate is positioned in the same plane with the upper frame, the other upper forming pressing plate is positioned below the upper frame and perpendicular to the plane of the upper frame, and the upper forming pressing plate is matched with the lower forming supporting plate.
Further, an inclined lower transition plate is arranged between the forming support plates, and an inclined upper transition plate is arranged between the upper forming press plates; the upper transition plate is a flat plate or an arc plate.
Further, a lower side rod extends on the plane of a lower forming supporting plate below the lower frame, a supporting plate is arranged on the other side of the lower frame, and a middle supporting plate is arranged in the middle of the lower frame; an upper side rod extends on the upper molding pressing plate plane below the upper frame.
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.
Further, two ends of the second long rolling shaft are provided with blowing devices.
A processing method for processing L-shaped bent toughened glass by using the device is characterized by comprising the following steps of: the method comprises the following steps:
A. softening:
opening a furnace door of the hot bending furnace, placing glass on a roller in the furnace, closing the furnace door, ensuring the furnace temperature to be 630-650 ℃, softening the glass for 3-6 min, and slowly moving the roller in the furnace forward until one end moves out of the hot bending furnace to be in contact with the first long roller;
B. and (3) forming:
the transportation speed of the glass is increased after the glass is transported to the first long roller, the glass is transported to the first short roller, the lifting table falls down, the softened glass falls on an L-shaped supporting device of an L-shaped compression molding device, the L-shaped compression molding device is started, the softened glass is reset after being compressed into an L shape, and the molded glass is rapidly transported to a quenching device on the L-shaped supporting device along with a moving part on a transportation track;
C. quenching and tempering:
the formed L-shaped glass enters the quenching device, the air distribution plates which are arranged up and down symmetrically cool the formed L-shaped glass rapidly through the air blowing openings, when the moving part moves to the sensor, the formed L-shaped glass is controlled to reciprocate back and forth on the conveying track along with the L-shaped supporting device, namely, the formed L-shaped glass moves relatively to the quenching device in a translation mode, and tempering is completed while rapid cooling is performed.
The method further comprises a cooling step, wherein the tempered glass enters a cooling device along the conveying track after the quenching tempering step, the lifting supporting table is lifted, the upper surfaces of the second short rolling shaft and the second long rolling shaft are paved with a rolling protection device, the tempered glass and the rolling protection device move along the second short rolling shaft to the rear section together, and the tempered glass is conveyed to the second long rolling shaft for blowing cooling or natural cooling.
The beneficial effects of the invention are as follows:
(1) According to the device, continuous production of the L-shaped bent toughened glass is realized through the devices corresponding to the four-stage 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 L-shaped compression molding device, 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, after the lifting platform falls down, the softened glass falls on an L-shaped supporting device of an L-shaped compression molding device, the L-shaped compression molding device is used for compressing the glass into an L shape and rapidly moving the L-shaped compression molding device to the next process, and in the process, the compression and transport processes are tightly combined, so that the whole production process is connected; in the quenching process, the formed L-shaped glass is controlled to reciprocate on a conveying track along with a moving part, prestress is formed on the surface of the glass, the glass is ensured not to crack, and when quenching is finished, glass tempering is finished; transporting the tempered glass to a cooling device again by means of a transporting rail for cooling;
(2) 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; the device is integrated with transportation and cooling, if the tail end of the production line needs a completely cooled product, the blowing devices at the two ends of the second long rolling shaft can be started to blow while transportation, if the tail end of the production line is provided with a naturally cooled space, the blowing devices are not started, the glass can be naturally cooled during transportation, the L-shaped bending part is supported by the L-shaped supporting device and the L-shaped pressing device in a special way for transporting the L-shaped bending part on the rolling shaft, and the L-shaped bending part is supported by the special device when the glass is discharged, so that the contact area of the glass and the rolling shaft is reduced, and the abrasion is reduced;
(3) The L-shaped supporting device of the L-shaped compression molding device and the L-shaped bend of the L-shaped compression molding device are downwards arranged, so that glass compression with different thicknesses is conveniently adjusted, a welding die is not needed, and the L-shaped bending compression of the glass with different thicknesses can be met only by adjusting the horizontal distance difference value of the L-shaped compression device above the L-shaped supporting device, so that the application range of the die is greatly improved; the bending direction of the L-shaped press forming device is downwards arranged in the transportation process, so that the bending part of the L-shaped press forming device needs to be protected, but in actual production, the L-shaped bent glass produced by downwards bending is obviously superior to upwards bending in appearance due to the dead weight effect of softened glass, and the effect is more obvious in custom glass with longer bending part;
(4) The lower transition plate and the upper transition plate are additionally arranged to further meet the requirements of the detail parts of other L-shaped bending, and the L-shaped bending has transition lines and is good in attractive appearance; however, in use, the L-shaped supporting device and the L-shaped pressing device provided with the lower transition plate and the upper transition plate must be a pair of glass thickness molds, and the processing requirements can be met by accurate matching; when the L-shaped lower bent part is larger, the lower side rod is matched with the upper side rod to play a role in positioning, so that glass is prevented from inclining inwards or outwards; the supporting plate and the middle supporting plate play a role in supporting softened glass in an auxiliary way, so that the influence of large deformation caused by the gravity action of the softened glass at a slightly high softening temperature on the quality of the glass is prevented;
(5) The sensor is arranged to realize the automation of the back and forth reciprocating motion of the formed glass in the quenching process, when the moving part is contacted with the sensor, the moving part is controlled to drive the formed glass to reciprocate back and forth, and the formed glass is continuously moved 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 L-shaped bent tempered 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 softened fully, and no obvious temperature difference exists among all areas, thereby laying a foundation for uniform flow forming of the forming link; the forming section and the transportation process are integrated, the glass does not need to be moved to enter a quenching tempering link, the quenching tempering link controls the formed glass to reciprocate back and forth, prestress is better formed on the surface of the glass, the glass is ensured not to be cracked, 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.
Drawings
FIG. 1 is a schematic structural view of a processing device for L-shaped bent tempered glass;
FIG. 2 is a schematic view showing an operating state of an apparatus for processing L-shaped bent tempered glass
FIG. 3 is a schematic diagram of a forming section in a processing device for L-shaped bent tempered glass;
FIG. 4 is a schematic view showing a structure of an L-shaped press forming apparatus in an apparatus for processing L-shaped bent tempered glass;
FIG. 5 is a schematic view showing another structure of an L-shaped press forming apparatus in an apparatus for processing L-shaped bent tempered glass;
FIG. 6 is an enlarged view of a portion A of FIG. 5;
FIG. 7 is a schematic view showing another structure of an L-shaped press forming apparatus in an apparatus for processing L-shaped bent tempered glass;
FIG. 8 is a schematic structural view of a press quenching apparatus in a processing apparatus for L-shaped bent tempered glass;
FIG. 9 is a schematic view of the lower half of a press quenching apparatus in a processing apparatus for L-shaped bent tempered glass;
fig. 10 is a partial enlarged view of a portion B in fig. 9;
fig. 11 is a schematic structural view of a cooling device in an L-shaped bent tempered glass processing device.
The reference numerals are as follows: 1. a hot bending furnace; 11. a roller in the furnace; 2. an L-shaped compression molding device; 21. an L-shaped supporting device; 22. an L-shaped pressing device; 23. a transfer device; 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; 44. rolling on a protective device; 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; 7. a lower frame; 71. a lower molding support plate; 72. a lower edge bar; 73. a lower transition plate; 74. a support plate; 75. a middle support plate; 8. an upper frame; 81. forming a pressing plate; 82. a top edge bar; 83. a transition plate is arranged; 84. a pressurizing rod.
Detailed Description
The invention will be described in further detail with reference to the drawings and the specific 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 specific detail structure of the L-shaped compression molding device 2 is different, and the general technical characteristics of the rest parts are as shown in figures 1-3 and 8-11:
the processing device of the L-shaped bent toughened glass comprises an L-shaped compression molding device 2, a quenching device 3, a cooling device 4 and a hot bending furnace 1 arranged at the front end of the L-shaped compression molding device 2, wherein an in-furnace roller 11 is arranged at the bottom of the hot bending furnace 1, the L-shaped compression molding device 2 comprises an L-shaped supporting device 21, an L-shaped compression device 22 and a conveying device 23, the conveying device 23 comprises a group of conveying rails 5 and a lifting table 6, limiting blocks 53 are arranged at two ends of the conveying rails 5, a sensor 52 is further arranged on the conveying rails 5, and the sensor 52 is arranged at the position of the conveying rails 5 positioned at the middle and rear sections in the quenching device 3; the transportation rail 5 is provided with a moving part 51, and the L-shaped supporting device 21 is arranged on the moving part 51; an L-shaped pressing device 22 matched with the shape of the L-shaped supporting device 21 is arranged above the L-shaped supporting device 21, and the L-shaped supporting device 21 and the matched L-shaped pressing device 22 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 falls during operation, the conveying rail 5 and the moving part 51 arranged on the conveying rail are higher than the first long rolling shaft 61 and the first short rolling shaft 62, so that glass can be conveyed onto the L-shaped supporting device 21 smoothly, the other end of the conveying rail 5 passes through the hollow position of the quenching device 3 to extend to the upper part of the cooling device 4, the inter-group width of the conveying rail 5 is larger than the length of the first short rolling shaft 62, and the first short rolling shaft 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 at the rear end, the second short roller 41 and the second long roller 42 are arranged on a lifting supporting table 43, the length of the second short roller 41 is smaller than the inter-group width of the conveying track 5, the arrangement reason of the cooling device is similar to that of the first short roller 62, an upper rolling protection device 44 is paved on the upper surfaces of the second short roller 41 and the second long roller 42, the damage to the L-shaped part which is bent downwards is prevented, and two ends of the second long roller 42 are provided with blowing devices.
Example 1
As shown in fig. 4, an L-shaped press forming device 2 in a processing device for L-shaped bent tempered glass, wherein an L-shaped supporting device 21 comprises a lower frame 7 and a lower forming supporting plate 71, one side of the lower frame 7 is provided with a group of lower forming supporting plates 71, one lower forming supporting plate 71 is in the same plane with the lower frame 7, the other lower forming supporting plate 71 is positioned below the lower frame 7 and is vertical to the plane of the lower frame 7, an L-shape is formed between the lower forming supporting plates 71, and the L-shape opening of the L-shape is downward; the L-shaped pressing device 22 comprises an upper frame 8, an upper forming pressing plate 81 and a pressing rod 84, wherein the pressing rod 84 is arranged on the upper frame 8, one side of the upper frame 8 is provided with a group of upper forming pressing plates 81, one upper forming pressing plate 81 is positioned in the same plane with the upper frame 8, the other upper forming pressing plate 81 is positioned below the upper frame 8 and is vertical to the plane of the upper frame 8, an L-shaped is formed between the upper forming pressing plates 81, and an L-shaped opening of the L-shaped pressing plate is downwards; the upper molding press plate 81 is adapted to the lower molding support plate 71.
A method for processing L-shaped bent toughened glass by using the device comprises the following steps:
in this embodiment, the glass is 1 sheet of plate glass having a thickness of 5mm, and the horizontal distance between the lower molding support plate 71 and the upper molding press plate 81 in the vertical direction is adjusted to be 5.5mm, and cannot be greater than 5.5mm, otherwise the folded angle is not sufficiently sharp.
A. Softening:
the furnace door of the hot bending 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 3min, and the furnace inner roller slowly moves forwards until one end moves out of the hot bending 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, the lifting table 6 drops, the softened glass falls on the L-shaped supporting device 21 of the L-shaped compression molding device 2, contacts with the lower frame 7 and the lower molding supporting plate 71 in the same plane, the L-shaped compression device 22 is started, the pressure is set, the upper frame 8 and the upper molding pressing plate 81 are driven to move downwards by being pressurized by the pressurizing rod 84, the softened glass is rapidly reset after being compressed into an L shape, the molded glass is L-shaped bent glass with sharp lines, and the molded glass is rapidly transported to the quenching device 3 on the L-shaped supporting device 21 along with the moving part 51 on the transportation track 5, wherein the process is 1s-2s.
C. Quenching and tempering:
when the formed L-shaped 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 L-shaped bent glass and the quenching device 3 are controlled to relatively translate, the air distribution plate 31 which is arranged vertically symmetrically carries out quick cooling, blowing and cooling on the formed L-shaped bent glass through the air blowing opening 32, the blowing time is controlled to be 40s, the air pressure is 4000Pa, the blowing distance is 12mm, and the tempering is completed when the quick cooling is carried out.
By adopting the device and the method, more than 300L-shaped bent toughened glass with the thickness of 5mm can be produced by three shifts per day, the phenomenon of burst in the quenching tempering link or the cooling process is basically avoided, the time for cleaning the burst glass fragments is saved, and the production efficiency is greatly improved.
The produced L-shaped bent toughened glass with sharp lines has few defects of lines, pits and white fog, particularly, at the corners, the lines are sharp, meanwhile, the light transmittance is good, no pressing trace exists, the optical performance is good, the product qualification rate is as high as 95% after multiple batches of spot inspection, the L-shaped bent toughened glass with the thickness of 5mm is rare, the thinner and larger glass is difficult to control in production quality, the optical performance requirement is also difficult to realize, 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 broken, and the economic effect is remarkable.
Example 2
As shown in fig. 4, an L-shaped press forming device 2 in a processing device for L-shaped bent tempered glass, wherein an L-shaped supporting device 21 comprises a lower frame 7 and a lower forming supporting plate 71, one side of the lower frame 7 is provided with a group of lower forming supporting plates 71, one lower forming supporting plate 71 is in the same plane with the lower frame 7, the other lower forming supporting plate 71 is positioned below the lower frame 7 and is vertical to the plane of the lower frame 7, an L-shape is formed between the lower forming supporting plates 71, and the L-shape opening of the L-shape is downward; the L-shaped pressing device 22 comprises an upper frame 8, an upper forming pressing plate 81 and a pressing rod 84, wherein the pressing rod 84 is arranged on the upper frame 8, one side of the upper frame 8 is provided with a group of upper forming pressing plates 81, one upper forming pressing plate 81 is positioned in the same plane with the upper frame 8, the other upper forming pressing plate 81 is positioned below the upper frame 8 and is vertical to the plane of the upper frame 8, an L-shaped is formed between the upper forming pressing plates 81, and an L-shaped opening of the L-shaped pressing plate is downwards; the upper molding press plate 81 is adapted to the lower molding support plate 71.
A method for processing L-shaped bent toughened glass by using the device comprises the following steps:
in this embodiment, the glass is 1 sheet of plate glass having a thickness of 10mm, and the horizontal distance between the lower molding support plate 71 and the upper molding press plate 81 in the vertical direction is adjusted to 11mm, and cannot be larger than 10.8mm, otherwise the folded angle is not sufficiently sharp.
A. Softening:
the furnace door of the hot bending 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 4min, and the furnace inner roller slowly moves forwards until one end moves out of the hot bending 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, the lifting table 6 drops, the softened glass falls on the L-shaped supporting device 21 of the L-shaped compression molding device 2, contacts with the lower frame 7 and the lower molding supporting plate 71 in the same plane, the L-shaped compression device 22 is started, the pressure is set, the upper frame 8 and the upper molding pressing plate 81 are driven to move downwards by being pressurized by the pressurizing rod 84, the softened glass is rapidly reset after being compressed into an L shape, the molded glass is L-shaped bent glass with sharp lines, and the molded glass is rapidly transported to the quenching device 3 on the L-shaped supporting device 21 along with the moving part 51 on the transportation track 5, wherein the process is 2s-3s.
C. Quenching and tempering:
when the formed L-shaped 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 L-shaped bent glass and the quenching device 3 are controlled to relatively translate, the air distribution plate 31 which is arranged vertically symmetrically carries out rapid cooling, blowing and cooling on the formed L-shaped bent glass through the air blowing opening 32, the blowing time is controlled to be 60s, the air pressure is controlled to be 1100Pa, the blowing distance is controlled to be 25mm, and the tempering is completed when the rapid cooling is carried out.
A. And (3) a cooling step:
the toughened glass enters the cooling device along the transportation track, the lifting supporting table 43 is lifted, the upper surfaces of the second short rolling shaft 41 and the second long rolling shaft 42 are paved with the upper rolling protection device 44, the toughened glass moves along the axial rear section of the second short rolling shaft 42 together with the upper rolling protection device 44, and the toughened glass is transported to the upper side of the second long rolling shaft 41 and cooled while being transported.
The device and the method can produce more than 250L-shaped 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 of cleaning the burst glass fragments and greatly improve the production efficiency.
The L-shaped bent toughened glass with sharp lines is hardly produced, the defects of the lines such as the lines, the pits and the white fog are almost overcome, especially, the corners are broken, the light transmittance is good while the lines are sharp, no pressing trace is generated, the optical performance is good, the product qualification rate is as high as 92% after multiple batches of spot inspection, the thicker bent toughened glass is difficult to realize, the optical performance of the thicker bent toughened glass is easy to be degraded, especially, the L-shaped bent toughened glass which is not in transition and is directly bent is easy to generate the 'inferior products' with the defects such as the lines are obvious at the indentations and the corners, the lines are raised after bending, and the like.
Example 3
As shown in fig. 5-6, an L-shaped press forming device 2 in a processing device for L-shaped bent tempered glass, wherein an L-shaped supporting device 21 comprises a lower frame 7 and a lower forming supporting plate 71, one side of the lower frame 7 is provided with a group of lower forming supporting plates 71, one lower forming supporting plate 71 is positioned in the same plane with the lower frame 7, the other lower forming supporting plate 71 is positioned below the lower frame 7 and is vertical to the plane of the lower frame 7, a lower side rod 72 extends on the plane of the lower forming supporting plate 71 positioned below the lower frame 7, the other side of the lower frame 7 is provided with a supporting plate 74, an L-shaped is formed between the group of lower forming supporting plates 71, an inclined lower transition plate 73 is arranged between the forming supporting plates 71, the lower transition plate 73 is a flat plate and serves as a buffer plate, and an L-shaped opening of the buffer plate is downward as a whole; the L-shaped pressing device 22 comprises an upper frame 8, upper forming pressing plates 81 and pressing rods 84, wherein the pressing rods 84 are arranged on the upper frame 8, one side of the upper frame 8 is provided with a group of upper forming pressing plates 81, one upper forming pressing plate 81 is positioned in the same plane with the upper frame 8, the other upper forming pressing plate 81 is positioned below the upper frame 8 and is vertical to the plane of the upper frame 8, upper side rods 82 are arranged on the plane of the upper forming pressing plates 81 below the upper frame 8 in an extending manner, inclined upper transition plates 83 are arranged between the upper forming pressing plates 81, an L-shape is formed between the group of upper forming pressing plates 81, the upper transition plates 83 are flat plates and serve as buffer plates, and the L-shaped openings of the upper transition plates are downward; the upper molding press plate 81 is adapted to the lower molding support plate 71.
A method for processing L-shaped bent toughened glass by using the device comprises the following steps:
in the embodiment, the glass is 1 piece of plate glass with the thickness of 12 mm; the horizontal distance between the lower molding support plate 71 and the upper molding press plate 81 in the vertical direction was adjusted to 13.5mm, and the sensor was a pressure sensor, and an AST2000 type pressure sensor of the guangdong, beijing was adopted.
A. Softening:
the furnace door of the hot bending 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 638 ℃, the glass is softened for 5min, and the furnace inner roller slowly moves forwards until one end moves out of the hot bending furnace 1 to be in contact with the first long roller 61.
B. And (3) forming:
the transportation speed is accelerated after the glass is transported to the first long roller 61, the glass is transported to the first short roller 62, the lifting table 6 drops, the softened glass falls on the L-shaped supporting device 21 of the L-shaped pressing forming device 2, contacts with the supporting plate 74 and the lower forming supporting plate 71 in the same plane, the L-shaped pressing device 22 is started, the pressure is set, the upper frame 8 and the upper forming pressing plate 81 are driven to move downwards by the pressurizing rod 84, the softened glass is quickly reset after being pressed into an L shape, the formed glass is L-shaped bent glass with straight line transition, and the formed glass is quickly transported to the quenching device 3 on the L-shaped supporting device 21 along with the moving part 51 on the transportation track 5, wherein the process is 2s-3s.
C. Quenching and tempering:
the formed L-shaped glass enters the quenching device 3, the sensor 52 is triggered, the sensor 52 transmits signals to the controller, the sensor 52 controls the reciprocating motion along with the moving part 51 on the conveying track 5, 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 65s, the air pressure is controlled to be 500Pa, the blowing distance is controlled to be 40mm, and the tempering is completed while the rapid cooling is carried out.
B. And (3) a cooling step:
the toughened glass enters the cooling device along the transportation track, the lifting supporting table 43 is lifted, the upper surfaces of the second short rolling shaft 41 and the second long rolling shaft 42 are paved with the upper rolling protection device 44, the toughened glass moves along the axial rear section of the second short rolling shaft 42 together with the upper rolling protection device 44, and the toughened glass is conveyed to the second long rolling shaft 41 for blowing cooling.
The device and the method can be used for producing more than 200L-shaped bent toughened glass with the thickness of 12mm and straight line transition by three shifts every day, basically have no explosion phenomenon in the quenching toughening link or in the cooling process, save the time for cleaning the explosion glass fragments and greatly improve the production efficiency.
The L-shaped bent toughened glass with straight line transition is characterized in that the defects of the striae, the pits and the white fog are almost absent, especially at the corners, the striae are smooth, meanwhile, the light transmittance is good, no pressing trace exists, the optical performance is good, the product qualification rate is as high as 94% through multiple batches of sampling inspection, the thicker bent toughened glass is difficult to realize, the optical performance of the thicker bent toughened glass is easy to be degraded, the L-shaped bent toughened glass with transition bending is easy to have obvious defects of the indentations at the transition sections, but 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, the customer reverberations is good, and the wide attention of the market is gained with the good optical performance after the installation.
Example 4
As shown in fig. 7, an L-shaped press forming device 2 in a processing device for L-shaped bent tempered glass, wherein an L-shaped supporting device 21 comprises a lower frame 7 and a lower forming supporting plate 71, one side of the lower frame 7 is provided with a group of lower forming supporting plates 71, one lower forming supporting plate 71 is in the same plane with the lower frame 7, the other lower forming supporting plate 71 is positioned below the lower frame 7 and is vertical to the plane of the lower frame 7, a lower side rod 72 is arranged on the plane of the lower forming supporting plate 71 positioned below the lower frame 7 in an extending manner, the other side of the lower frame 7 is provided with a supporting plate 74, and a middle supporting plate 75 is arranged in the middle of the lower frame 7; an L-shaped part is formed between a group of lower forming support plates 71, an inclined lower transition plate 73 is arranged between the forming support plates 71, the lower transition plate 73 is an arc-shaped plate, and an L-shaped opening of the lower transition plate is downward as a buffer plate; the L-shaped pressing device 22 comprises an upper frame 8, upper forming pressing plates 81 and pressing rods 84, wherein the pressing rods 84 are arranged on the upper frame 8, one side of the upper frame 8 is provided with a group of upper forming pressing plates 81, one upper forming pressing plate 81 is positioned in the same plane with the upper frame 8, the other upper forming pressing plate 81 is positioned below the upper frame 8 and is vertical to the plane of the upper frame 8, upper side rods 82 are arranged on the plane of the upper forming pressing plates 81 below the upper frame 8 in an extending manner, inclined upper transition plates 83 are arranged between the upper forming pressing plates 81, an L-shape is formed between the group of upper forming pressing plates 81, the upper transition plates 83 are arc-shaped plates serving as buffer plates, and the whole L-shaped openings of the upper transition plates are downward; the upper molding press plate 81 is adapted to the lower molding support plate 71.
A method for processing L-shaped bent toughened glass by using the device comprises the following steps:
in the embodiment, the glass is 1 piece of plate glass with the thickness of 15 mm; the horizontal distance between the lower molding support plate 71 and the upper molding press plate 81 in the vertical direction was adjusted to 17mm, and the sensor was a photoelectric sensor, and an ottas C-R series photoelectric sensor was used.
A. Softening:
the furnace door of the hot bending 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 630 ℃, the glass is softened for 6 minutes, and the furnace inner roller slowly moves forwards until one end moves out of the hot bending furnace 1 to be in contact with the first long roller 61.
B. And (3) forming:
the transportation speed is accelerated after the glass is transported to the first long roller 61, the glass is transported to the first short roller 62, the lifting table 6 drops, the softened glass falls on the L-shaped supporting device 21 of the L-shaped pressing forming device 2, contacts with the supporting plate 74, the middle supporting plate 75 and the lower forming supporting plate 71 in the same plane, the L-shaped pressing device 22 is started, the pressure is set, the upper frame 8 and the upper forming pressing plate 81 are driven to move downwards by the pressurizing rod 84, the softened glass is quickly reset after being pressed into an L shape, the formed glass is L-shaped bent glass with an arc transition curve, and the formed glass is quickly transported to the quenching device 3 on the L-shaped supporting device 21 along with the moving part 51 on the transportation track 5, wherein the process is 3s.
C. Quenching and tempering:
the formed L-shaped glass enters the quenching device 3, the sensor 52 is triggered, the sensor 52 transmits signals to the controller, the sensor 52 controls the reciprocating motion along with the moving part 51 on the conveying track 5, 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 85 seconds, the air pressure is controlled to be 100Pa, the blowing distance is controlled to be 45mm, and the tempering is completed while the rapid cooling is carried out.
B. And (3) a cooling step:
the toughened glass enters the cooling device along the transportation track, the lifting supporting table 43 is lifted, the upper surfaces of the second short rolling shaft 41 and the second long rolling shaft 42 are paved with the upper rolling protection device 44, the toughened glass moves along the axial rear section of the second short rolling shaft 42 together with the upper rolling protection device 44, and the toughened glass is transported to the second long rolling shaft 41 for natural cooling.
By adopting the device and the method, the L-shaped bent toughened glass with the thickness of 15mm and the arc transition curve can be produced by three shifts every day, and 200 pieces of the L-shaped bent toughened glass can be basically prevented from being burst in a quenching tempering link or burst in a cooling process, so that the time for cleaning burst glass fragments is saved, and the production efficiency is greatly improved.
The L-shaped bent toughened glass with sharp-falling lines and arc-shaped transition curves has the advantages that the defects of the striae, pits and white fog are almost overcome, particularly, at the corners, the streamline is good in light transmittance, no pressing trace exists at all, the optical performance is good, the product qualification rate is as high as 93% through multiple batches of spot check, the L-shaped bent toughened glass with arc-shaped transition bending is difficult to realize in thick bent toughened glass, the optical performance of the thicker glass after bending is easy to be degraded, the defects of obvious striae are easy to occur at the transition section, but 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 broken, the economic effect is obvious, the customer reverberations is good, and the market is widely focused through the good optical performance and streamline transition arc bending after installation.
Claims (9)
1. The utility model provides a processingequipment of toughened glass is bent to L shape, includes L shape compression moulding device (2), rapid cooling device (3), cooling device (4), its characterized in that: the device is characterized by further comprising a hot bending furnace (1) arranged at the front end of the L-shaped compression molding device (2), wherein a furnace roller (11) is arranged at the bottom of the hot bending furnace (1), and the L-shaped compression molding device (2) comprises an L-shaped supporting device (21), an L-shaped compression device (22) and a conveying device (23);
the L-shaped supporting device (21) comprises a lower frame (7) and a lower forming supporting plate (71); one side of the lower frame (7) is provided with a group of lower forming support plates (71), one lower forming support plate (71) is in the same plane with the lower frame (7), the other lower forming support plate (71) is positioned below the lower frame (7) and is perpendicular to the plane of the lower frame (7), and L-shaped is formed between the lower forming support plates (71);
the L-shaped pressing device (22) comprises an upper frame (8), an upper forming pressing plate (81) and a pressing rod (84), wherein the pressing rod (84) is arranged on the upper frame (8), one side of the upper frame (8) is provided with a group of upper forming pressing plates (81), one upper forming pressing plate (81) is positioned in the same plane with the upper frame (8), the other upper forming pressing plate (81) is positioned below the upper frame (8) and is perpendicular to the plane of the upper frame (8), and the upper forming pressing plate (81) is matched with the lower forming supporting plate (71);
the conveying device (23) comprises a group of conveying rails (5) and a lifting table (6);
a moving part (51) is arranged on the conveying track (5), and an L-shaped supporting device (21) is arranged on the moving part (51); an L-shaped pressing device (22) which is matched with the L-shaped supporting device in shape is arranged above the L-shaped supporting device (21),
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 arranged symmetrically up and down;
one end of the conveying rail (5) is positioned between the first long rolling shaft (61) and the first short rolling shaft (62), the other end of the conveying rail (5) penetrates through the hollow position of the quenching device (3) and extends to the upper part of the cooling device (4), and the inter-group width of the conveying rail (5) is larger than the length of the first short rolling shaft (62).
2. The processing apparatus for L-shaped bent tempered glass as claimed in claim 1, wherein: the cooling device (4) comprises a second short roller (41) and a second long roller (42) which are sequentially arranged at the rear end, the second short roller (41) and the second long roller (42) are arranged on a lifting supporting table (43), the length of the second short roller (41) is smaller than the inter-group width of a conveying track (5), and a rolling protection device (44) is paved on the upper surfaces of the second short roller (41) and the second long roller (42).
3. The processing apparatus for L-shaped bent tempered glass as claimed in claim 2, wherein: an inclined lower transition plate (73) is arranged between the forming support plates (71), and an inclined upper transition plate (83) is arranged between the upper forming press plates (81); the upper transition plate (83) is a flat plate or an arc plate.
4. A processing apparatus for L-shaped bent tempered glass as claimed in claim 2 or 3, wherein: a lower side rod (72) is arranged on the plane of the lower forming supporting plate (71) below the lower frame (7) in an extending mode, a supporting plate (74) is arranged on the other side of the lower frame (7), and a middle supporting plate (75) is arranged in the middle of the lower frame (7); an upper side rod (82) is arranged on the plane of the upper forming pressing plate (81) below the upper frame (8) in an extending mode.
5. The processing apparatus for L-shaped bent tempered glass as claimed in claim 4, 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).
6. The processing apparatus for L-shaped bent tempered glass as claimed in claim 5, 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.
7. The processing apparatus for L-shaped bent tempered glass as claimed in claim 6, wherein: and blowing devices are arranged at two ends of the second long rolling shaft (42).
8. A method of processing L-shaped bent tempered glass using the apparatus according to any one of claims 1 to 7, characterized in that: the method comprises the following steps:
A. softening:
opening a furnace door of the hot bending furnace (1), placing glass on a roller (11) in the furnace, closing the furnace door, ensuring the furnace temperature to be 630-650 ℃, softening the glass for 3-5 min, and slowly moving the roller in the furnace forward until one end moves out of the hot bending furnace (1) to be in contact with the first long roller (61);
B. and (3) forming:
the transportation speed is increased after the glass is transported to the first long roller (61), the glass is transported to the first short roller (62) immediately, the lifting table (6) falls, the softened glass falls on the L-shaped supporting device (21) of the L-shaped compression molding device (2), the L-shaped compression device (22) is started, the softened glass is reset after being compressed into an L shape, and the molded glass is rapidly transported to the quenching device (3) on the transportation track (5) along with the moving part (51) on the L-shaped supporting device (21);
C. quenching and tempering:
the formed L-shaped glass enters the quenching device (3), the air distribution plates (31) which are arranged vertically symmetrically cool the formed L-shaped glass rapidly through the air blowing openings (32), when the moving part (51) moves to the sensor (52), the formed L-shaped glass is controlled to reciprocate on the conveying track (5) along with the L-shaped supporting device (21), namely, the formed L-shaped glass moves relatively and horizontally with the quenching device (3), and tempering is completed while rapid cooling.
9. The method for processing the L-shaped bent tempered glass as claimed in 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, an upper rolling protection device (44) is paved on the upper surfaces of the second short rolling shafts (41) and the second long rolling shafts (42), the tempered glass and the upper rolling protection device (44) move along the rear section of the second short rolling shafts (41) together, and the tempered glass is conveyed to the second long rolling shafts (42) for blowing cooling or natural cooling.
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