CN209957643U

CN209957643U - U-shaped toughened glass's processingequipment that bends

Info

Publication number: CN209957643U
Application number: CN201920455316.8U
Authority: CN
Inventors: 郑智
Original assignee: JIAYUGUAN TIANBAO HOT BENDING GLASS TECHNIQUE Co Ltd
Current assignee: Gansu Bohui Chuangying New Material Technology Co ltd
Priority date: 2019-04-04
Filing date: 2019-04-04
Publication date: 2020-01-17
Anticipated expiration: 2029-04-04

Abstract

The utility model discloses a U-shaped toughened glass's of bending processingequipment belongs to crooked glass tempering technical field to solve the problem that the variety that the crooked glass professional equipment of U-shaped can be produced is few, the qualification rate is low, production is discontinuous, inefficiency. The device comprises a U-shaped pressing forming device, a quenching device, a cooling device and a hot bending furnace arranged at the front end of the U-shaped pressing forming device, wherein a furnace roller is arranged at the bottom of the hot bending furnace; a U-shaped pressing device matched with the U-shaped supporting device in shape is arranged above the U-shaped supporting device. The utility model discloses combine softening, shaping, rapid cooling tempering, the cooling link of U-shaped toughened glass of bending, realize serialization, high efficiency, automated production.

Description

U-shaped toughened glass's processingequipment that bends

Technical Field

The utility model belongs to the technical field of crooked glass tempering, concretely relates to U-shaped toughened glass's of bending processingequipment.

Background

The physical toughened glass is also called as quenched toughened glass, and is prepared by heating common plate glass in a heating furnace to a temperature close to the softening temperature of the glass, eliminating internal stress through self deformation, then removing the glass out of the heating furnace, and blowing high-pressure cold air to two sides of the glass by using a multi-head nozzle to rapidly and uniformly cool the glass to room temperature. After tempering treatment, uniform compressive stress is formed on the surface of the glass, and tensile stress is formed inside the glass, so that the bending strength and the impact strength of the glass are improved, and the strength of the glass is about four times that of common annealed glass. The toughened glass which is well toughened can not be cut, ground and the like or damaged, otherwise the toughened glass can be broken into 'broken bones' due to the damage of the uniform pressure stress balance, so that the toughened glass with special shapes is immediately subjected to hot bending forming.

The production method of the glass hot-bending toughened glass in the prior art has two types: one is that the glass is heated in a furnace in one step to reach the deformation temperature, then the deformable glass is sent to a wind grid by a roll shaft, and is bent and formed by the movement of the roll shaft to obtain the required shape and then is tempered, but 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 made. The other method is to adopt a mold type, put the hot bent toughened glass on a prepared mold, put the mold into a hearth to be heated, bent and molded, and then convey the heated glass into an air grid to be cooled and toughened; but the problem of movement in a high-temperature state in the hearth is difficult to solve; and the hot bending toughening furnace can not be continuously produced because the hot bending toughening furnace needs to be transported into the air grid after the furnace is opened, and the production efficiency is low.

However, the bending of the natural forming is too large when the U-shaped bent glass is tempered, in the production of the U-shaped bent tempered glass with a small radian meeting the order requirement, special auxiliary forming equipment is needed, the U-shaped bent mold capable of forming the bending is combined with the whole production line after the bending radian meeting the order requirement is formed, and in order to realize continuous production, compared with the production of L-shaped bending, the U-shaped bending needs to form L-shaped bending at two ends of the glass, so that the difficulty is higher, and more accurate mold matching is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a U-shaped toughened glass's processingequipment that bends to solve the curved glass tempering of U-shaped and do not have professional equipment, production discontinuity, the problem of inefficiency.

In order to solve the above problems, the utility model discloses technical scheme does:

a U-shaped bent toughened glass processing device comprises a U-shaped pressing forming device, a quenching device, a cooling device and a hot bending furnace arranged at the front end of the U-shaped pressing forming device, wherein a rolling shaft in the furnace is arranged at the bottom of the hot bending furnace; a U-shaped pressing device matched with the U-shaped supporting device in shape is arranged above the U-shaped supporting device, at least two first long rolling shafts and first short rolling shafts are sequentially arranged above the lifting platform, and the first long rolling shafts are adjacent to the rolling shafts in the furnace and are flush in height; the quenching device is a group which is arranged in an up-down symmetrical mode, one end of the conveying track is located between the first long rolling shaft and the first short rolling shaft, the other end of the conveying track penetrates through the hollow position of the quenching device and extends to the upper portion of the cooling device, and the width between the conveying track groups is larger than the length of the first short rolling shaft.

Furthermore, the U-shaped supporting device comprises a lower frame, a lower forming supporting plate and a lower forming side plate, wherein the lower forming supporting plate and the lower forming side plate are symmetrically arranged on the lower frame in a group and form a U shape with an upward opening together with the lower frame; the U-shaped pressing device comprises an upper frame, an upper forming pressing plate, an upper forming side plate and a pressurizing rod, wherein the pressurizing rod is arranged on the upper frame, and the upper forming pressing plate and the upper forming side plate are symmetrically arranged on the upper frame in groups and form a U shape with the upper frame.

Furthermore, an inclined lower transition plate is arranged between the lower forming supporting plate and the lower forming side plate, and an inclined upper transition plate is arranged between the upper forming pressing plate and the upper forming side plate;

furthermore, the upper transition plate is a flat plate or an arc-shaped plate.

Furthermore, a middle supporting plate is arranged in the middle of the lower frame.

Further, a sensor is arranged on the transportation track and is arranged at the position of the transportation track, which is positioned at the middle rear part in the quenching device;

furthermore, the two ends of the transportation track are provided with limit blocks.

Furthermore, the quenching device comprises at least two groups of air distribution plates which are arranged in an up-and-down symmetrical mode, a plurality of air blowing openings are formed in the air distribution plates, and air filtering nets are arranged on the surfaces of the air blowing openings.

Furthermore, the cooling device comprises a second short roller and a second long roller which are arranged at the rear end in sequence, the second short roller and the second long roller are arranged on the lifting support platform, and the length of the second short roller is smaller than the width between groups of the transportation tracks.

Furthermore, two ends of the second long rolling shaft are provided with blowing devices.

The utility model has the advantages as follows:

(1) the device realizes the continuous production of the U-shaped bent toughened glass through the devices corresponding to the four-section process, realizes the slow movement of the glass through the additionally arranged roller in the furnace at the softening furnace bottom, on one hand, the heating and softening of the glass are more uniform, on the other hand, the glass is slowly transported out and connected with the U-shaped pressing and forming device, and the integrated production is realized; the softened glass is transported to a first short roller through a first long roller, and because the length of the first short roller is shorter than the distance between the transportation track groups, after the lifting platform falls down, the softened glass falls on a U-shaped supporting device of a U-shaped pressing forming device, the glass is pressed into a U shape through the U-shaped pressing forming device, and is rapidly moved to the next procedure, in the process, the pressing and transporting processes are closely combined, and the whole production process is connected; in the quenching process, the formed U-shaped glass is controlled to reciprocate back and forth on the conveying track along with the moving part, so that prestress is formed on the surface of the glass, the glass is prevented from being cracked, and the glass is tempered when the quenching is finished; transporting the tempered glass to a cooling device again by means of the transportation rail for cooling;

(2) the U-shaped supporting device of the U-shaped pressing forming device and the U-shaped bend of the U-shaped pressing device are both arranged upwards, so that the U-shaped pressing forming device is convenient to transport, and if the U-shaped opening is downward, the U-shaped bend part can be clamped between the rolling shafts when the U-shaped pressing forming device moves on the rolling shafts; when the U-shaped opening faces upwards, the lower part of the finished glass at the production position is flat and easy to transport; in part of orders, the middle part of the U-shaped bent glass is required to be partially protruded, when the opening is upward, the self weight of the glass is just utilized, the softening temperature is raised, the glass naturally falls to realize the protruded effect, multiple times of practice shows that the finished product can have a better streamline effect, when the middle part of the U-shaped bent glass is required to be flat, the softening temperature is moderate, and the middle part is combined with a middle supporting plate to support the self weight of the glass, so that the flat requirement of the middle part is realized;

(3) the lower transition plate and the upper transition plate are additionally arranged in order to further meet the requirements of the detail parts of other U-shaped bends, and with the transition plate, transition lines exist in the U-shaped bends, so that the appearance is better; when in use, one pair of molds with the same glass thickness can meet the processing requirement only through precise matching; the middle supporting plate plays a role in assisting in supporting the softened glass, and prevents the glass from being greatly deformed under the action of gravity when the softening temperature is slightly higher so as to influence the quality of the glass;

(4) 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 back-and-forth reciprocating motion, and the glass is continuously moved to the cooling link after the quenching set time is up; the limiting block ensures that the moving part always moves on the conveying track; the air filtering net realizes the purification of the air outlet of the air blowing port and prevents the dust in the air outlet from falling on the glass which is not completely toughened to influence the quality of the glass;

(5) the lifting support platform of the cooling device can well adjust the heights of the second short roller and the second long roller so as to receive the toughened glass and convey the toughened glass to a cooling link; the glass conveying device is integrated with transportation and cooling, if a product which needs to be completely cooled at the tail end of the production line is required, the blowing devices at two ends of the second long rolling shaft can be started to blow while transporting, and if a natural cooling space is arranged at the tail end of the production line, the blowing devices do not need to be started, and the glass can be naturally cooled during transportation;

(6) the utility model combines the softening, forming, quenching and tempering and cooling links of the U-shaped bent toughened glass, thereby realizing continuous, high-efficiency and automatic production, ensuring that the glass is heated uniformly and softened fully because the glass moves slowly in the furnace in the softening link, having no obvious temperature difference among all areas, and laying a foundation for uniform streamline forming of the forming link; the forming section and the transportation process are integrated, glass does not need to be moved and directly enters a rapid cooling tempering link, the rapid cooling 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 finished products is improved, and the product quality is ensured; the final cooling step can adopt air cooling or natural cooling, and finished products are conveyed out through the second short roller and the second long roller, so that the automation degree is improved.

Drawings

FIG. 1 is a schematic structural view of a device for processing U-shaped bent tempered glass;

FIG. 2 is a schematic view of a working state of a U-shaped bent tempered glass processing device

FIG. 3 is a schematic structural view of a U-shaped press-forming device in a U-shaped tempered glass processing device;

FIG. 4 is a schematic structural view of a U-shaped press-forming device in a U-shaped tempered glass processing device;

FIG. 5 is another schematic structural view of a U-shaped press-forming device in a U-shaped tempered glass processing device;

FIG. 6 is another schematic structural view of a U-shaped press-forming device in a U-shaped tempered glass processing device

FIG. 7 is an enlarged view of a portion A of FIG. 6;

FIG. 8 is a schematic structural view of a quenching device in a device for processing U-shaped bent tempered glass;

FIG. 9 is a schematic structural view of the lower half of a quenching device in the U-shaped tempered glass processing device;

FIG. 10 is an enlarged view of a portion B of FIG. 9;

fig. 11 is a schematic structural view of a cooling device in a U-shaped bent tempered glass processing device.

The reference numbers are as follows: 1. hot bending furnace; 11. a roller in the furnace; 2. a U-shaped press forming device; 21. a U-shaped support device; 22. a U-shaped pressing device; 23. a conveying device; 3. a quenching device; 31. a wind distribution plate; 32. an air blowing port; 33. a gas filter screen; 4. a cooling device; 41. a second short roller; 42. a second long roller; 43. a lifting support platform; 5. a transportation track; 51. a moving part; 52. a sensor; 53. a limiting block; 6. a lifting platform; 61. a first long roller; 62. a first short roller; 7. a lower frame; 71. a lower forming support plate; 72. lower forming side plates; 73. a lower transition plate; 74. a middle support plate; 8. an upper frame; 81. forming a pressing plate; 82. forming a side plate; 83. an upper transition plate; 84. a pressurizing rod.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific examples.

The utility model discloses in, the sensor can adopt multiple sensors such as pressure sensor, photoelectric sensor, as long as can survey the transportation track on the removal portion with it contact can.

The utility model discloses the device is according to the difference of order demand in each embodiment, and its difference lies in that the specific detail structure of U-shaped press forming device 2 is different, and the general technical characteristic of other parts is as shown in fig. 1-3, fig. 8-11:

a U-shaped bent toughened glass processing device comprises a U-shaped pressing forming device 2, a quenching device 3, a cooling device 4 and a hot bending furnace 1 arranged at the front end of the U-shaped pressing forming device 2, wherein a furnace roller 11 is arranged at the bottom of the hot bending furnace 1, the U-shaped pressing forming device 2 comprises a U-shaped supporting device 21, a U-shaped pressing device 22 and a conveying device 23, the conveying device 23 comprises a group of conveying rails 5 and a lifting platform 6, two ends of each conveying rail 5 are provided with limit blocks 53, each conveying rail 5 is also provided with a sensor 52, and the sensors 52 are arranged at the positions, located at the middle rear part, in the quenching device 3, of the conveying rails 5; the transportation rail 5 is provided with a moving part 51, and the U-shaped supporting device 21 is arranged on the moving part 51; a U-shaped pressing device 22 matched with the U-shaped supporting device 21 in shape is arranged right above the U-shaped supporting device 21, and the U-shaped supporting device 21 and the matched U-shaped pressing device 22 can be replaced according to different order requirements; at least two first long rollers 61 and first short rollers 62 are sequentially arranged above the lifting platform 6, the first long rollers 61 are adjacent to the rollers 11 in the furnace and are flush in height, and the glass is convenient to transfer after being softened; the quenching device 3 is a group which is arranged in an up-down symmetrical manner, the quenching device 3 comprises at least two groups of air distribution plates 31 which are arranged in an up-down symmetrical manner, a plurality of air blowing openings 32 are arranged on the air distribution plates 31, air filtering nets 33 are arranged on the surfaces of the plurality of air blowing openings 32, and the quenching and tempering are realized by up-down air blowing; one end of the transportation rail 5 is positioned between the first long roller 61 and the first short roller 62, and before operation, the transportation 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 during operation, the transportation track 5 and the moving part 51 arranged on the transportation track are higher than the first long roller 61 and the first short roller 62, so that glass can be smoothly transported to the U-shaped supporting device 21, the other end of the transportation track 5 penetrates through the hollow position of the quenching device 3 and extends to the position above the cooling device 4, the width between the groups of the transportation track 5 is larger than the length of the first short roller 62, 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 the lifting supporting platform 43, the length of the second short roller 41 is smaller than the width between the groups of the transportation track 5, the reason is similar to that of the first short roller 62, and the two ends of the second long roller 42 are provided with blowing.

Example 1

As shown in fig. 4, the U-shaped supporting device 21 in the processing device for U-shaped bent tempered glass includes a lower frame 7, a lower forming supporting plate 71, and a lower forming side plate 72, wherein the lower forming supporting plate 71 and the lower forming side plate 72 are symmetrically arranged on the lower frame 7 in a group and form a U shape with an upward opening together with the lower frame 7; the U-shaped pressing device 22 includes an upper frame 8, an upper forming pressing plate 81, an upper forming side plate 82, and a pressing rod 84, the upper frame 8 is provided with the pressing rod 84, and the upper forming pressing plate 81 and the upper forming side plate 82 are symmetrically arranged on the upper frame 8 in groups and form a U-shape with the upper frame 8.

In the embodiment, the glass is 1 piece of flat glass with the thickness of 19 mm; the difference between the width of the manufactured U-shaped pressing device 22 and the width of the U-shaped supporting device 21 is 60mm, enough space for bending two ends of glass upwards is reserved, one end of the glass is 11mm more, the difference is greatly different from that of the L-shaped pressing forming device in processing, the L-shaped pressing forming device is pressed downwards, the reserved distance is smaller, the error between the shape of the produced glass and the theoretical design shape is smaller and almost very small, the glass cannot be distinguished by naked eyes, the error between the design shape and the product shape cannot be seen fundamentally beyond 1m after installation, but the service direction of the U-shaped pressing forming device is inclined in the process of being convenient to transport and meeting various requirements for customization, the U-shaped pressing forming device is manufactured to be in a shape that the U-shaped opening is upwards, after the glass falls into the U-shaped supporting device 21 in processing, a little edge is expanded, on the basis, if the distance between the U-shaped pressing device 22 and the U-shaped supporting device 21 is strictly matched, the transmittance of finished glass is influenced, the finished glass is generally judged to be defective in processing, and through multiple research practices, the difference between the width of the U-shaped pressing device 22 and the width of the U-shaped supporting device 21 is more reasonable than that of the processed glass by 5-11 mm, the difference is too large, the sharpness of a bent angle of the U-shaped bending is not good enough, the difference is too small, the requirement on pressure control in production is too accurate, carelessness is caused, and the yield of defective glass is high.

In the embodiment, the sensor is a photoelectric sensor, and a C-R series photoelectric sensor of Ottas is adopted.

A method for processing U-shaped bent toughened glass by the device comprises the following steps:

A. softening:

and opening a furnace door of the hot bending furnace 1, placing glass on the roller 11 in the furnace, closing the furnace door, ensuring the furnace temperature to be 640 ℃, softening the glass for 6min, and slowly moving the roller in the furnace forward until one end of the roller is moved out of the hot bending furnace 1 and is contacted with the first long roller 61.

B. Molding:

the glass is transported to the first long roller 61 and then is accelerated in transportation speed, then is transported to the first short roller 62, the lifting platform 6 descends, the softened glass falls on the U-shaped supporting device 21 of the U-shaped press forming device 2, the bottom of the softened glass is in contact with the lower forming supporting plate 71, the side edges of the softened glass are lapped on the lower forming side plate 72, the U-shaped press forming device 22 is started, pressure is set, the softened glass is pressurized by the pressurizing rod 84 to drive the upper frame 8, the upper forming pressing plate 81 and the upper forming side plate 82 to move downwards, the softened glass is reset after being pressed into a U shape, the formed glass is U-shaped bent glass with sharp lines and obvious break angles, and the formed glass is rapidly transported to the quenching device 3 on the U-shaped supporting device 21 along with the moving part 51 on the transportation track 5.

C. Quenching and tempering:

the formed U-shaped glass enters the quenching device 3, a sensor 52 is triggered, the sensor 52 transmits a signal to a controller, the reciprocating motion of the moving part 51 on the transportation track 5 is controlled, namely, the relative translation between the formed bent glass and the quenching device 3 is controlled, the air distribution plates 31 which are symmetrically arranged up and down carry out rapid cooling and air blowing cooling on the glass through air blowing ports 32, the air blowing time is controlled to be 90s, the air pressure is controlled to be 100Pa, the air blowing distance is 60mm, and the tempering is completed while the glass is rapidly cooled.

D. And (3) cooling:

after the quenching and tempering step, the tempered glass enters the cooling device 4 along the transportation rail 5, the lifting support platform 43 is lifted, the tempered glass falls on the second short roller 41 and moves towards the rear section, and the tempered glass is conveyed to the second long roller 42 to be blown and cooled.

Adopt the utility model discloses three shifts can produce the sharp strip that 19mm is thick, the obvious U-shaped toughened glass of bending of dog-ear more than 150 pieces every day the device and method, and do not basically have the phenomenon that rapid cooling tempering link explodes and splits or explode among the cooling process, saved the time of the glass piece that explodes of clearance, improved production efficiency greatly.

The produced U-shaped bent toughened glass with sharp lines and obvious break angles has almost no defects of striae, pockmarks and white fog, particularly the break angles, the lines have good light transmittance while being sharp, no manufacturing marks are left completely, the optical performance is good, the product percent of pass is up to 92% after multi-batch sampling inspection, the defects are difficult to realize in thick bent toughened glass, the optical performance of the thicker glass after bending is easy to be deteriorated, particularly, the toughened glass without transition and direct bending is easy to have defects of indentations, obvious striae at the break angles, bulges on the lines after bending, and the like, namely 'inferior', but the equipment matching method in the embodiment is verified in the production of a large number of orders, can meet the inspection requirements of the optical performance and the mechanical performance on the basis of ensuring that the glass is not cracked, has obvious economic effect, and good customer responses.

Example 2

As shown in fig. 5, the U-shaped supporting device 21 in the processing device for U-shaped bent tempered glass includes a lower frame 7, a lower forming supporting plate 71, and a lower forming side plate 72, wherein the lower forming supporting plate 71 and the lower forming side plate 72 are symmetrically arranged on the lower frame 7 in a group and form a U shape with an upward opening together with the lower frame 7; the U-shaped pressing device 22 comprises an upper frame 8, an upper forming pressing plate 81, an upper forming side plate 82 and a pressurizing rod 84, wherein the pressurizing rod 84 is arranged on the upper frame 8, the upper forming pressing plate 81 and the upper forming side plate 82 are symmetrically arranged on the upper frame 8 in a group and form a U shape with the upper frame 8, an inclined lower transition plate 73 is arranged between a lower forming supporting plate 71 and a lower forming side plate 72, and an inclined upper transition plate 83 is arranged between the upper forming pressing plate 81 and the upper forming side plate 82; the upper transition plate 83 is a flat plate, and the middle support plate 74 is provided in the middle of the lower frame 7.

In the embodiment, the glass is 1 piece of plate glass with the thickness of 10 mm; the difference between the width of the manufactured U-shaped pressing device 22 and the width of the U-shaped supporting device 21 is 36mm, enough space is reserved for bending two ends of the glass upwards, one end of the glass is 5mm more, and the sensor is a pressure sensor which is an AST2000 type pressure sensor in Beijing Rui Hongtong.

A. softening:

and opening a furnace door of the hot bending furnace 1, placing glass on the roller 11 in the furnace, closing the furnace door, ensuring the furnace temperature to be 660 ℃, softening the glass for 4min, and slowly moving the roller in the furnace forward until one end of the roller is moved out of the hot bending furnace 1 and is contacted with the first long roller 61.

B. Molding:

the glass is transported to the first long roller 61 and then is accelerated in transportation speed, then is transported to the first short roller 62, the lifting platform 6 descends, the softened glass falls on the U-shaped supporting device 21 of the U-shaped press forming device 2, the bottom of the softened glass is in contact with the lower forming supporting plate 71 and the middle supporting plate 74, the side edges of the softened glass are lapped on the lower forming side plate 72, the U-shaped press forming device 22 is started, pressure is set, the softened glass is pressurized by the pressurizing rod 84, the upper frame 8, the upper forming pressing plate 81 and the upper forming side plate 82 are driven to move downwards, the softened glass is reset after being pressed into a U shape, the formed glass is U-shaped bent glass with straight line transition, and the formed glass is rapidly transported to the quenching device 3 on the U-shaped supporting device 21 along with the moving part 51 on the transportation rail 5.

C. Quenching and tempering:

the formed U-shaped glass enters the quenching device 3, a sensor 52 is triggered, the sensor 52 transmits a signal to a controller, the reciprocating motion of the moving part 51 on the transportation track 5 is controlled, namely, the relative translation between the formed bent glass and the quenching device 3 is controlled, the air distribution plates 31 which are symmetrically arranged up and down carry out rapid cooling and air blowing cooling on the glass through air blowing ports 32, the air blowing time is controlled to be 60s, the air pressure is controlled to be 800Pa, the air blowing distance is 25mm, and the tempering is completed while the glass is rapidly cooled.

D. And (3) cooling:

after the quenching and tempering step, the tempered glass enters the cooling device 4 along the transportation rail 5, the lifting support platform 43 is lifted, the tempered glass falls on the second short roller 41 and moves to the rear section, and the tempered glass is conveyed to the second long roller 42 for natural cooling.

Adopt the utility model discloses three shifts can produce 10mm thick U-shaped bending toughened glass more than 250 with the transition of stringline each day with the device and method, and do not have the phenomenon that rapid cooling tempering link explodes and splits or explode among the cooling process basically, saved the time of the glass piece that explodes of clearance, improved production efficiency greatly.

The produced U-shaped bent toughened glass with the straight line transition almost has no defects of ribs, pits and white fog, particularly, at a folding angle, the light transmission is good while lines are sharp, no manufacturing mark is left completely, the optical performance is good, the product percent of pass is up to 92% through multi-batch sampling inspection, the defects are difficult to realize in thicker bent toughened glass, the optical performance of bent thicker glass is easy to deteriorate, and the defects that the indentation is obvious at the transition section are easy to occur in the U-shaped bent toughened glass with the transition bending.

Example 3

As shown in fig. 6 to 7, a U-shaped supporting device 21 in a processing device for U-shaped bent tempered glass includes a lower frame 7, a lower forming supporting plate 71, and a lower forming side plate 72, wherein the lower forming supporting plate 71 and the lower forming side plate 72 are symmetrically arranged on the lower frame 7 in a group and form a U-shape with an upward opening with the lower frame 7; the U-shaped pressing device 22 comprises an upper frame 8, an upper forming pressing plate 81, an upper forming side plate 82 and a pressurizing rod 84, wherein the pressurizing rod 84 is arranged on the upper frame 8, the upper forming pressing plate 81 and the upper forming side plate 82 are symmetrically arranged on the upper frame 8 in a group and form a U shape with the upper frame 8, an inclined lower transition plate 73 is arranged between a lower forming supporting plate 71 and a lower forming side plate 72, and an inclined upper transition plate 83 is arranged between the upper forming pressing plate 81 and the upper forming side plate 82; the upper transition plate 83 is an arc-shaped plate. A middle support plate 74 is provided in the middle of the lower frame 7.

In the embodiment, the glass is 1 piece of plate glass with the thickness of 5 mm; the difference between the width of the manufactured U-shaped pressing device 22 and the width of the U-shaped supporting device 21 is 20mm, enough space for bending the two ends of the glass upwards is reserved, and 5mm is added to one end of the glass.

The processing method for processing the U-shaped bent toughened glass by the device comprises the following steps:

A. softening:

and opening a furnace door of the hot bending furnace 1, placing glass on the roller 11 in the furnace, closing the furnace door, ensuring the furnace temperature to be 670 ℃, softening the glass for 2min, and slowly moving the roller in the furnace forward until one end of the roller is moved out of the hot bending furnace 1 and is contacted with the first long roller 61.

B. Molding:

the glass is transported to the first long roller 61 and then is accelerated in transportation speed, then is transported to the first short roller 62, the lifting platform 6 descends, the softened glass falls on the U-shaped supporting device 21 of the U-shaped press forming device 2, the bottom of the softened glass is in contact with the lower forming supporting plate 71 and the middle supporting plate 74, the side edges of the softened glass are lapped on the lower forming side plate 72, the U-shaped press forming device 22 is started, pressure is set, the softened glass is pressurized by the pressurizing rod 84 to drive the upper frame 8, the upper forming pressing plate 81 and the upper forming side plate 82 to move downwards, the softened glass is reset after being pressed into a U shape, the formed glass is U-shaped bent glass with arc transition, and the formed glass is rapidly transported to the quenching device 3 on the U-shaped supporting device 21 along with the moving part 51 on the transportation track 5.

C. Quenching and tempering:

the formed U-shaped glass enters the quenching device 3, when the moving part 51 moves to the middle position of the quenching device 3, the manual control is carried out to reciprocate on the conveying track 5 along with the moving part 51, namely, the relative translation between the formed U-shaped bent glass with arc transition and the quenching device 3 is controlled, the air distribution plates 31 which are symmetrically arranged up and down carry out rapid cooling and air blowing cooling on the glass through the air blowing openings 32, the air blowing time is controlled to be 40s, the air pressure is 3000Pa, the air blowing distance is 12mm, and the rapid cooling and the tempering are completed at the same time.

Adopt the utility model discloses three shifts can produce the U-shaped toughened glass of bending more than 300 pieces that have pitch arc transition that 5mm is thick every day with the device and the method, and do not have the phenomenon that rapid cooling tempering link explodes and splits or explode among the cooling process basically, saved the time of the glass piece that explodes of clearance, improved production efficiency greatly.

The produced U-shaped bent toughened glass with arc transition has almost no defects of striae, pits and white fog, particularly the break angle has good streamline shape and light transmission, no pressing trace exists at all, the optical performance is good, the product qualification rate is up to 90 percent after multi-batch spot inspection, the U-shaped bent toughened glass with arc transition with the thickness of 5mm is rare, the thinner and bigger glass is more difficult to control the production quality, the requirement on the optical performance is more difficult to realize, the defect on the optical performance is more easy to expose, the U-shaped bent toughened glass with arc transition is easy to have the defect that the striae is obvious in the transition section, but the equipment matching method in the production of a large number of orders verifies that the inspection requirements on the optical performance and the mechanical performance can be met on the basis of ensuring that the glass is not cracked, and the economic effect is obvious, customers respond well and gain wide attention in the market with good optical performance after installation.

Claims

1. The utility model provides a U-shaped toughened glass's processingequipment that bends, includes U-shaped press forming device (2), rapid cooling device (3), cooling device (4), its characterized in that: the hot bending device is characterized by further comprising a hot bending furnace (1) arranged at the front end of the U-shaped pressing forming device (2), wherein a furnace roller (11) is arranged at the bottom of the hot bending furnace (1), the U-shaped pressing forming device (2) comprises a U-shaped supporting device (21), a U-shaped pressing device (22) and a conveying device (23), the conveying device (23) comprises a group of conveying rails (5) and a lifting platform (6), a moving part (51) is arranged on each conveying rail (5), and the U-shaped supporting device (21) is installed on each moving part (51); a U-shaped pressing device (22) matched with the U-shaped supporting device in shape is arranged above the U-shaped supporting device (21), at least two first long rolling shafts (61) and first short rolling shafts (62) are sequentially arranged above the lifting platform (6), and the first long rolling shafts (61) are adjacent to the rolling shafts (11) in the furnace and are flush in height; quenching device (3) are a set of that the longitudinal symmetry set up, transportation track (5) one end is located between first long roller (61) and first short roller (62), transportation track (5) other end passes quenching device (3) cavity position and extends to cooling device (4) top, transportation track (5) intergroup width is greater than first short roller (62) length.

2. The apparatus for processing U-shaped bent tempered glass as claimed in claim 1, wherein: the U-shaped supporting device (21) comprises a lower frame (7), a lower forming supporting plate (71) and a lower forming side plate (72), wherein the lower forming supporting plate (71) and the lower forming side plate (72) are symmetrically arranged on the lower frame (7) in a group and form a U shape with the lower frame (7); u-shaped suppression device (22) include upper frame (8), go up shaping embossing plate (81), go up shaping curb plate (82), pressure bar (84), be equipped with pressure bar (84) on upper frame (8), go up shaping embossing plate (81) and last shaping curb plate (82) and set up symmetrically on upper frame (8) and form the U-shaped with upper frame (8).

3. The apparatus for processing U-shaped bent tempered glass as claimed in claim 2, wherein: an inclined lower transition plate (73) is arranged between the lower forming supporting plate (71) and the lower forming side plate (72), and an inclined upper transition plate (83) is arranged between the upper forming pressing plate (81) and the upper forming side plate (82).

4. The apparatus for processing U-shaped bent tempered glass as claimed in claim 3, wherein: the upper transition plate (83) is a flat plate or an arc-shaped plate.

5. The apparatus for processing U-shaped bent tempered glass as claimed in claim 4, wherein: a middle supporting plate (74) is arranged in the middle of the lower frame (7).

6. The apparatus for processing U-shaped bent tempered glass as claimed in claim 5, wherein: the transportation rail (5) is also provided with a sensor (52), and the sensor (52) is arranged at the position, located in the quenching device (3), of the transportation rail (5).

7. The apparatus for processing U-shaped bent tempered glass as claimed in claim 6, wherein: and two ends of the transportation track (5) are provided with limit blocks (53).

8. The apparatus for processing U-shaped bent tempered glass as claimed in claim 7, wherein: the quenching device (3) comprises at least two groups of air distribution plates (31) which are arranged in an up-down symmetrical mode, a plurality of air blowing openings (32) are formed in the air distribution plates (31), and air filtering nets (33) are arranged on the surfaces of the plurality of air blowing openings (32) from top to bottom.

9. The apparatus for processing U-shaped bent tempered glass as claimed in claim 8, wherein: the cooling device (4) comprises a second short roller (41) and a second long roller (42) which are arranged at the rear end in sequence, the second short roller (41) and the second long roller (42) are arranged on a lifting support platform (43), and the length of the second short roller (41) is smaller than the width between groups of the transportation tracks (5).

10. The apparatus for processing U-shaped bent tempered glass as claimed in claim 9, wherein: and two ends of the second long rolling shaft (42) are provided with blowing devices.