A production device and a production process of bent tempered glass

Abstract

The application discloses a kind of curved tempered glass production equipment and production process, including conveying assembly, including multiple conveying shafts, multiple conveying shafts are along a conveying direction conveying glass;Upper air grid component, including structural beam, upper blowing nozzle and multiple elastic components, multiple elastic components are connected on structural beam, multiple elastic components are connected with upper blowing nozzle;Each upper blowing nozzle is arranged above multiple conveying shafts with interval;Lower air grid component is installed below multiple conveying shafts;Including multiple mounting beams, lower blowing nozzle and arc changing mechanism, multiple lower blowing nozzles are arranged on each mounting beam;Arc changing mechanism is used to drive adjacent two mounting beams to rotate relatively, so that the plane and circular surface formed by multiple mounting beams are switched;Multiple conveying shafts are distributed above multiple mounting beams.The upper blowing nozzle of the application is installed by elastic component, reduces the setting of arc changing mechanism in upper air grid component.

Description

TECHNICAL FIELD

[0001] The present application relates to the bending toughened glass production technical field, especially to a bending toughened glass production equipment and production process. BACKGROUND

[0002] At present, the bending toughened glass production equipment bending toughened section, specifically a two-dimensional arc bending toughened glass production equipment necessary component, for the glass after heated softening bending forming, toughening and cooling, as shown in the attached Figure 1 、 2 , mainly includes:

[0003] —The upper air grid assembly 1 mainly includes several blow nozzles 13, several longitudinal main beams 12, two variable arc dragons 11 and a variable arc mechanism, the blow nozzles 13 are installed on the longitudinal main beams 12, the longitudinal main beams 12 are arranged along the production process direction F, both ends are connected to the two variable arc dragons 11 respectively, the two variable arc dragons 11 can realize the transformation between the arc state and the flat state under the drive of the variable arc mechanism, the upper air grid cooling surface B composed of the longitudinal main beams 12 indirectly drives the blow nozzles 13 to transform between the required cylindrical surface and the plane;

[0004] —The lower air grid assembly 2 mainly includes the main components of the upper air grid assembly 1 and has the same assembly relationship, and further includes a transmission system mainly composed of several flexible shafts 24 installed on the longitudinal main beams 22, the two variable arc dragons 21 can realize the transformation between the arc state and the flat state under the drive of the variable arc mechanism, the glass forming surface A composed of the several flexible shafts 24 of the transmission system, the blow nozzles 23 and the lower air grid cooling surface C composed of the lower air grid cooling surface C are indirectly driven by the longitudinal main beams 22 to transform between the required cylindrical surface and the plane;

[0005] The glass forming surface A, the upper air grid cooling surface B and the lower air grid cooling surface C are concentric in theory when they are cylindrical surfaces, and are parallel in theory when they are planes;

[0006] The glass 4 softened after heating in the heating furnace enters and is formed on the glass forming surface A of the lower air grid assembly 2.

[0007] The use method of the bending toughened glass production equipment bending toughened section is as shown in Figure 3 , which is:

[0008] Step S0: the upper air grid cooling surface B of the upper air grid assembly 1 is formed into the required cylindrical surface under the action of the variable arc mechanism of the upper air grid assembly and is lowered to the working position;

[0009] Step S1: the lower air grid assembly 2 is flattened, the glass forming surface A and the lower air grid cooling surface C are in the plane state; the glass 4 heated in the heating furnace enters the bending toughened section and is supported on the glass forming surface A;

[0010] Step S2: glass forming;

[0011] Sub-step S21: two arc-changing dragons 21 of the lower air grid assembly 2 are driven by the arc-changing mechanism to make the glass forming surface A and the lower air grid cooling surface C into the required arc state, and the glass is preliminarily formed by closely adhering to the glass forming surface under the action of gravity;

[0012] Sub-step S22: the glass 4 is swung back and forth along the glass process direction F on the glass forming surface A under the drive of the transmission system of the lower air grid assembly 2 to complete the final forming after the shape is corrected;

[0013] Step S3: the glass 4 is continuously swung back and forth along the glass process direction F on the glass forming surface A; at the same time, the air blowing nozzles 13 of the upper air grid cooling surface B and the air blowing nozzles 23 of the lower air grid cooling surface C blow air to the surface of the glass 4 to complete the shaping, tempering and cooling of the glass 4;

[0014] Step S4: the finished product glass 4 is conveyed out of the bending and tempering section under the drive of the transmission system of the lower air grid assembly 2; return to step S1 to enter the next production cycle.

[0015] Figure 3 It should be noted that (a) is the end state of step S1; (b) is the end state of sub-step S21 in step S2.

[0016] Since the upper air grid assembly 1 has a longitudinal main beam 12 and the lower air grid assembly 2 has a longitudinal main beam 22, which are arranged in parallel with a gap therebetween, in the process of entering, forming and tempering air blowing of the glass 4, the glass 4 is affected by the heat radiation of the longitudinal main beam 12 and the longitudinal main beam 22, and the cooling air blown to the glass 4 has a loop path inconsistent with the gap between the longitudinal main beam 12 and the longitudinal main beam 22, which causes the cooling effect on the surface of the glass 4 to present a parallel band-shaped difference consistent with the arrangement of the longitudinal main beam along the parallel production process direction F.

[0017] Since the upper air grid assembly 1 and the lower air grid assembly 2 each have two arc-changing dragons 12 and 22 and their arc-changing mechanisms, the two arc-changing dragons 12 and 22 are prone to produce differences after being arc-changed respectively in the production process, and the normal distance between the upper air grid cooling surface B of the upper air grid assembly 1 and the glass forming surface A of the lower air grid assembly 2 is prone to be inconsistent; in addition, since the upper air grid assembly 1 adjusts the relative position between the upper air grid assembly 1 and the lower air grid assembly 2 through the upper air grid lifting mechanism assembly 3, and there is no direct correlation between the upper air grid assembly 1 and the lower air grid assembly 2, it is easy to cause misalignment between the two, that is, it is difficult to achieve the concentricity of the upper air grid cooling surface B, the glass forming surface A and the lower air grid cooling surface C.

[0018] In summary, the normal blowing distance of each blowing nozzle 13 on the upper air grid assembly 1 to the glass 4 is prone to difference, and then the cooling effect of the upper air grid cooling surface B to the glass is prone to inconsistency, macroscopically, the tempered stress difference is prone to occur on the glass surface, and the use effect is affected.

[0019] Since the upper air grid assembly 1 has two arc changing dragons 11 and arc changing mechanisms itself, and is separately adjusted, there are defects of high cost and complex operation.

[0020] In summary, the current bending tempered glass production equipment has high cost and complex operation, the bending tempered glass product has obvious stress spot, large tempered stress difference, poor quality and bad application experience. SUMMARY

[0021] In order to overcome the defects of the prior art, one of the purposes of the present application is to provide a bending tempered glass production equipment, wherein the upper blowing nozzles of the upper air grid assembly are installed through elastic components and structural beams, the original several longitudinal main beams for installing the upper blowing nozzles are cancelled, the longitudinal strip-shaped wind spots generated by the longitudinal main beams on the tempered glass product are eliminated, and the setting of the arc changing mechanism of the upper air grid assembly is reduced.

[0022] The second purpose of the present application is to provide a bending tempered glass production process, wherein the upper blowing nozzles of the upper air grid assembly are installed through elastic components, and can change with the arc of the lower air grid assembly, thereby reducing the setting of the longitudinal main beams and the arc changing mechanism of the upper air grid assembly.

[0023] The third purpose of the present application is to provide an upper air grid assembly for bending tempered glass production, wherein the upper blowing nozzles of the upper air grid assembly are installed through elastic components, and can change with the arc of the lower air grid assembly, thereby reducing the setting of the longitudinal main beams and the arc changing mechanism of the upper air grid assembly.

[0024] One of the purposes of the present application is achieved by the following technical scheme:

[0025] A bending tempered glass production equipment, characterized in that it comprises,

[0026] A conveying assembly comprising a plurality of conveying shafts, the plurality of conveying shafts conveying glass along a conveying direction;

[0027] An upper air grid assembly comprising a structural beam, an upper blowing nozzle and a plurality of elastic components, the plurality of elastic components being connected to the structural beam, and the upper blowing nozzle being connected to the plurality of elastic components; each upper blowing nozzle is arranged above the plurality of conveying shafts in a spaced manner.

[0028] A lower air grid assembly is installed below the plurality of conveying shafts; the lower air grid assembly comprises a plurality of installation beams, a plurality of lower blow nozzles and an arc changing mechanism; the installation beams extend along the conveying direction and are arranged in the axial direction of the conveying shafts; each installation beam is provided with a plurality of lower blow nozzles; the arc changing mechanism is used to drive the relative rotation of two adjacent installation beams, so that the surface formed by the plurality of installation beams is switched between a plane and a circular arc surface; and the plurality of conveying shafts are distributed above the plurality of installation beams, so that the plurality of conveying shafts are linked with the rotation of the installation beams.

[0029] The second purpose of the present application is achieved by the following technical solutions:

[0030] A production process of bent tempered glass, comprising,

[0031] Step S0: The lower air grid assembly is flattened, the glass forming surface and the lower cooling surface are both in a plane state, and the entering of the heated glass is waited for;

[0032] Step S1: The heated glass in the heating furnace enters the conveying assembly and is located on the glass forming surface;

[0033] Step S2: The glass forming is completed; before the end of this step, the upper air grid assembly is lowered by the lifting mechanism, is close to the lower air grid assembly and is formed with the lower air grid assembly, and the upper cooling surface is in a circular arc state;

[0034] Sub-step S21: The lower air grid assembly is changed from a flattened state to a circular arc state by the driving of the arc changing mechanism, the glass forming surface and the lower cooling surface are in a circular arc state, and the glass is preliminarily formed by closely adhering to the glass forming surface under the action of gravity;

[0035] Sub-step S22: The glass supported on the glass forming surface swings back and forth along the glass conveying direction to complete the correction of the shape of the glass and finally forms;

[0036] Step S3: The glass continuously swings back and forth on the glass forming surface along the glass conveying direction; at the same time, the upper blow nozzles of the upper air grid assembly and the lower blow nozzles of the lower air grid assembly blow air to the surface of the glass to complete the shaping, tempering and cooling of the glass;

[0037] Step S4: The lifting mechanism lifts the upper air grid assembly, and the finished product glass is output under the action of the conveying assembly.

[0038] The third purpose of the present application is achieved by the following technical solutions:

[0039] An upper air grid assembly for bent tempered glass production, comprising the upper air grid assembly. Compared with the prior art, the present application has the following beneficial effects:

[0040] After assembly, the return air gap is the interval between the two adjacent elastic components, when the air blowing nozzle blows air, the return air can directly return from the interval between the two elastic components, the return air volume is large, and the return air gap is uniformly distributed, so that the blowing is uniform and the cooling effect is uniform; in addition, the strip difference in the intensity of thermal radiation to the glass caused by the presence of the longitudinal installation beam of the upper air grid assembly, the strip difference in the cooling air return path blowing to the glass does not exist, that is, the upper air grid assembly of the technical scheme of the present application will not produce strip stress spots and strip tempering stress differences parallel to the conveying direction consistent with the arrangement of the longitudinal installation beam. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 is a schematic view of a bending tempering section of the bending tempering glass production equipment in the prior art;

[0042] Figure 2 is a left sectional view of Figure 1

[0043] Figure 3 is a schematic view of a use state of the bending tempering glass production equipment in the prior art;

[0044] Figure 4 is a schematic view of another use state of the bending tempering glass production equipment in the prior art;

[0045] Figure 5 is a schematic view of the structure of the production equipment of the present application;

[0046] Figure 6 is another perspective view of the structure of the production equipment of the present application;

[0047] Figure 7 is another schematic view of the structure of the production equipment of the present application;

[0048] Figure 8 is a M-M sectional view of Figure 7

[0049] In the figure: 110, structural beam; 111, linear elastic component; 112, upper air blowing nozzle; 113, lifting mechanism; 114, contact body; 115, linkage mechanism; 1151, linkage plate; 1152, linkage arm; 1153, sliding shaft; 210, conveying shaft; 310, installation beam; 311, lower air blowing nozzle; 314, arc changing mechanism. DETAILED DESCRIPTION

[0050] In the following, the present application will be further described in conjunction with the drawings and the specific embodiments:

[0051] ​​In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0053] Example 1,

[0054] in this way Figure 5 , Figure 6 , Figure 7 as well as Figure 8 The illustrated production equipment for bending tempered glass includes a conveying assembly, an upper air grid assembly, and a lower air grid assembly. The conveying assembly includes multiple conveying shafts 210, which are arranged along a conveying direction (see [reference]). Figure 5 The glass is conveyed in the E direction. It should be noted that multiple conveying shafts 210 can work together to form the glass forming surface a.

[0055] Specifically, the upper air grate assembly includes a structural beam 110, an upper air nozzle 112, and multiple elastic components. The multiple elastic components are all connected to the structural beam 110, and the multiple elastic components are all connected to the upper air nozzles 112. That is, the multiple upper air nozzles 112 of the upper air grate assembly are connected to the structural beam 110 by multiple elastic components, and each upper air nozzle 112 is arranged at intervals above the multiple conveying shafts 210.

[0056] A lower air grate assembly is installed below multiple conveyor shafts 210. The lower air grate assembly includes multiple mounting beams 310, lower air nozzles 311, and an arc-changing mechanism 314. The mounting beams 310 extend along the conveying direction, and the multiple mounting beams 310 are arranged at intervals along the axial direction of the conveyor shafts 210. Multiple lower air nozzles 311 are provided on each mounting beam 310.

[0057] In addition, two adjacent mounting beams 310 are rotatably connected, and the arc changing mechanism 314 can drive the relative rotation of the two adjacent mounting beams 310. The plurality of mounting beams 310 are arranged in a plane under normal circumstances, and when the glass is bent, the arc changing mechanism 314 can drive the relative rotation of the two adjacent mounting beams 310, so that the plane formed by the plurality of mounting beams 310 is switched between a plane and a circular arc surface. The plurality of conveying shafts 210 are distributed above the plurality of mounting beams 310, so that the plurality of conveying shafts 210 are linked with the rotation of the mounting beams 310, that is, when the plane formed by the plurality of mounting beams 310 changes to a circular arc surface, the glass forming surface formed by the plurality of conveying shafts 210 can also change from a plane to a circular arc surface.

[0058] It should be noted that the plurality of upper blow nozzles 112 and the plurality of lower blow nozzles 311 can be arranged in the axial direction of the conveying shaft 210, and can also be arranged in the conveying direction.

[0059] Based on the above structure, when the production equipment for bending tempered glass of the present application is used,

[0060] The plurality of upper blow nozzles 112 of the upper air grid assembly can blow air towards the upper side of the glass forming surface, and the plurality of upper blow nozzles 112 collectively form an upper cooling surface that can cool the upper surface of the glass.

[0061] While the plurality of upper blow nozzles 112 blow air to cool the upper surface of the glass, the plurality of lower blow nozzles 311 below the glass forming surface can also blow air, and the plurality of lower blow nozzles 311 collectively form a lower cooling surface that can cool the lower surface of the glass.

[0062] When the glass is formed in the heating furnace, the glass can be conveyed along the conveying direction by the plurality of conveying shafts 210 of the conveying assembly, and the glass forming surface formed by the plurality of conveying shafts 210 can support the glass. When the glass is conveyed between the upper air grid assembly and the lower air grid assembly, it should be noted that the arc changing mechanism 314 can drive the relative rotation of the two adjacent mounting beams 310, so that the plane formed by the plurality of mounting beams 310 changes to a circular arc surface. Since the plurality of conveying shafts 210 are arranged above the plurality of mounting beams 310, when the plurality of mounting beams 310 change to a circular arc surface, the glass forming surface formed by the plurality of conveying shafts 210 can also change to a circular arc surface that matches the circular arc surface, so as to bend the glass on the glass forming surface.

[0063] At the same time, since the plurality of upper blow nozzles 112 are above the glass forming surface, and the upper blow nozzles 112 are connected to the structural beam 110 by elastic components, when the glass is bent, the upper surface of the glass will be bent during the force, and the upper cooling surface formed by the plurality of upper blow nozzles 112 will be bent.

[0064] When the mounting beam 310 of the lower air grid assembly is driven to rotate by the arc changing mechanism 314 to form a flat expansion state, the plurality of elastic components of the upper air grid assembly can be reset to drive the plurality of upper blow nozzles 112 connected thereto to reset to form an initial flat state structure. In this way, only the arc changing mechanism 314 needs to be provided on the lower air grid assembly, and the upper air grid assembly cooperates with the lower air grid assembly by the extension and contraction of the elastic components to achieve arc switching, reducing the setting of the arc structure on the upper air grid assembly, and the structure is simple.

[0065] In addition, if the arc changing mechanism 314 is provided on the upper air grid assembly, a plurality of longitudinal mounting beams 310 need to be provided correspondingly, the longitudinal mounting beams 310 extend in unison with the mounting beams 310 of the lower air grid assembly, and are arranged in the conveying direction. The longitudinal mounting beams 310 are driven to rotate by the arc changing mechanism 314 to achieve arc changing. On the basis of such a structure, the plurality of upper blow nozzles 112 are mounted on the longitudinal mounting beams 310. In this way, when the upper blow nozzles 112 blow downward, each longitudinal mounting beam 310 will form a black body radiation on the upper surface of the glass, causing a light spot, and the longitudinal mounting beam 310 will also block part of the wind, causing insufficient wind volume. After the upper blow nozzles 112 blow downward, air needs to be returned. If the plurality of upper blow nozzles 112 are spaced apart by the longitudinal mounting beams 310, a small gap is formed between the two adjacent mounting beams 310, causing a small amount of return air, generating a strip-shaped stress spot parallel to the conveying direction along the arrangement of the longitudinal mounting beams 310, and a strip-shaped stress difference.

[0066] Therefore, in the embodiment, the structural beam 110 is used as the main beam on which the plurality of elastic components are mounted, and then the plurality of upper blow nozzles 112 are mounted on the structural beam 110 by the elastic components, that is, each group of upper blow nozzles 112 is mounted by the elastic components, reducing the black body radiation caused by the assembly structure, so that the generation of light spots during cooling can be effectively reduced. After assembly, the air return gap is the interval between the two adjacent elastic components. When the upper blow nozzles 112 blow, the return air can be directly returned from the gap between the two elastic components, the return air volume is large, and the return air gap is uniformly distributed, so that the blowing is uniform, and the cooling effect is uniform.

[0067] That is, the strip difference of the intensity of thermal radiation to the glass caused by the longitudinal installation beam 310 of the upper air grid assembly does not exist, that is, the upper air grid assembly of the technical scheme of the present application will not generate the strip stress spot and the strip stress difference along the conveying direction parallel to the arrangement of the longitudinal installation beam 310.

[0068] Of course, since the structural beam 110 is used as the installation basis of the elastic component, the longitudinal installation beam 310 of the upper air grid assembly in the prior art is replaced by a plurality of elastic components, that is, the upper air blowing nozzle 112 in the prior art is directly assembled on the longitudinal installation beam 310, and in the embodiment, the upper air blowing nozzle 112 is connected to the structural beam 110 by the elastic component, the distance between the upper air blowing nozzle 112 and the structural beam 110 is enlarged, and the air return path is also enlarged, the air return speed and the air pressure are slowed down, and thus the strip stress spot can be effectively reduced.

[0069] Further, in the embodiment, the elastic component is a linear elastic component 111, specifically, the upper air grid assembly generally has a plurality of upper air blowing nozzle groups, each group of upper air blowing nozzles includes a plurality of upper air blowing nozzles, and in assembly, the elastic component can pass through the plurality of upper air blowing nozzles of each group of upper air blowing nozzles in sequence, and then the linear elastic component is connected to the bottom end of the structural beam 110. The linear elastic component 111 bends after being stressed, and can restore to a straight line state after the stress is removed.

[0070] Specifically, the linear elastic element is fitted according to the distribution position of the structural beam 110, and the side of the plurality of upper air blowing nozzles 112 facing the glass is indirectly formed along the array of the linear elastic element; if the plurality of installation beams 310 of the lower air grid assembly are in a planar expansion state under the action of the arc changing mechanism 314, the upper cooling surface formed by the upper air blowing nozzles 112 of the upper air grid assembly is a plane parallel to the glass forming surface; if the plurality of installation beams 310 of the lower air grid assembly are in a circular arc state under the action of the arc changing mechanism 314, the plurality of linear elastic components 111 of the upper air grid cooling surface can shrink along with the arc change of the glass forming surface, so that the upper cooling surface formed by the plurality of upper air blowing nozzles 112 connected thereto forms a cylindrical surface concentric with the glass forming surface.

[0071] In addition, the linear elastic component is assembled to a plurality of upper air blowing nozzles of a single group, compared with the longitudinal main beam of the upper air grid assembly in the prior art, the linear surface is relatively assembled to the inherent assembly surface, the blackbody radiation caused by the assembly structure is reduced, and thus the generation of light spots during the cooling process can be effectively reduced. In addition, adjacent two upper air blowing nozzles of the same group of upper air blowing nozzles are also connected by a linear connection, and thus there is a large air return gap.

[0072] It should be noted that the linear elastic component 111 in the embodiment can be made of elastic steel wire or other elastic materials that can shrink under stress and recover automatically after the stress is removed. When the upper blowing nozzle has two wire holes, the linear elastic component can be a pair of elastic steel wires.

[0073] Of course, the linear elastic component can also be a rectangular cross-section elastic steel belt structure. In summary, the elastic component can be made of elastic materials that can shrink under stress and recover automatically after the stress is removed.

[0074] Further, the upper blowing nozzle 112 can be provided with a through hole on both sides, and the linear elastic component 111 can be provided in the through hole. When assembling, each group of upper blowing nozzles can be hung by two linear elastic components. When stressed, the linear elastic component 111 on both sides of the upper blowing nozzle 112 can stretch and contract. Because the stretching structure of the upper blowing nozzle 112 is stable, the shaking during the arc changing process is reduced, and the uneven blowing caused by shaking during blowing is reduced.

[0075] Based on the structure of the above embodiment 1, an air supply channel can be provided in the structure beam 110. The air supply channel can be connected to an external air supply device. The air can first enter the air supply channel, and then the air supply channel and the upper blowing nozzle 112 are connected by a gas pipe. That is, the structure beam 110 can directly pass air, reducing the setting of the pipeline.

[0076] Specifically, a plurality of air outlet holes can be provided at the bottom end of the structure beam 110. The plurality of air outlet holes can be one-to-one corresponding to the plurality of upper blowing nozzles 112. The air outlet hole and the upper blowing nozzle 112 are connected by a gas pipe. It should be noted that the gas pipe can be a flexible pipe structure. When the elastic component is deformed, the flexible pipe can also change.

[0077] Of course, the air supply of the plurality of blowing nozzles can also be directly connected to the main pipe and the plurality of branch pipes and the plurality of upper blowing nozzles 112. However, this will increase the light path structure of the upper air grid assembly. The upper blowing nozzle 112 has more air outlet and air return blocking, and is prone to cause uneven air path.

[0078] Embodiment 3,

[0079] Based on the structures of the above embodiments 1 and 2, further, the upper air grid assembly further comprises a lifting mechanism 113, which can drive the structure beam 110 to move up and down.

[0080] Specifically, when the glass is being conveyed, the structural beam 110 can be driven upward by the lifting mechanism 113, and the elastic members and the upper blowing nozzles 112 on the structural beam 110 can be driven upward to be away from the conveying shafts 210 of the conveying assembly, so that the glass heated in the heating furnace can enter.

[0081] After the glass enters, the lifting mechanism 113 can drive the structural beam 110 of the upper grid assembly to move downward, and the upper blowing nozzles 112 of the elastic members can directly or indirectly abut against the lower glass. When the camber mechanism 314 of the lower grid assembly is actuated, the upper cooling surface formed by the upper blowing nozzles 112 can be curved or stretched, and can be a cylindrical surface or a plane.

[0082] It should be noted that the abutment in the embodiment refers to the physical contact forced by gravity or other mechanical force, and thus the glass is not damaged.

[0083] Of course, the lifting mechanism 113 described above can be realized by using a driving structure capable of outputting linear motion in the prior art, such as a pneumatic cylinder, an oil cylinder, a screw rod transmission, etc.

[0084] Embodiment 4,

[0085] Based on the structures of the embodiments 1, 2 and 3:

[0086] Referring to Figure 7 and Figure 8 Based on the structure, the structural beam is provided with a plurality of structural beams 110, the bottom end of each structural beam 110 is provided with a plurality of elastic members, and the end of each structural beam 110 is provided with a linkage mechanism 115 for hinging.

[0087] The two adjacent structural beams 110 are hinged in the above-mentioned manner. Since the elastic members are deformed in cooperation with the glass on the glass forming surface, the corresponding structural beam 110 can be deformed to have a certain camber. When the distribution position of the structural beam 110 changes with the extension or bending of the upper grid assembly, the elastic members can be reset. It is difficult for the upper cooling surface formed by the plurality of upper blowing nozzles 112 to be maintained for a period of time. Therefore, the linkage mechanism 115 can be arranged to link the structural beam 110 and the mounting beam 310, so that the upper cooling surface formed by the plurality of upper blowing nozzles 112 can be maintained as a cylindrical surface or a plane, and the profile or flatness thereof can be limited within an allowable range. Generally, the profile or flatness thereof is not greater than 5 mm, which can meet the process requirements.

[0088] More specifically, referring to Figure 8In the embodiment, the linkage mechanism 115 comprises a plurality of linkage plates 1151 and a plurality of linkage arm groups, the bottom ends of two adjacent linkage plates 1151 are hingedly connected by a hinge shaft, and the top ends of the two adjacent linkage plates 1151 are slidably connected by a linkage arm group; the linkage arm group comprises two linkage arms 1152 cross-hingedly connected, one end of the linkage arm 1152 is slidably mounted on one of the linkage plates 1151, and the other end of the linkage arm 1152 is hingedly connected to the other linkage plate 1151; the end of each structural beam 110 is connected to the corresponding linkage plate 1151; and the linkage arms 1152 of adjacent linkage arm groups are hingedly connected, that is, the linkage arms 1152 of the same linkage arm group are slidably connected to the sliding groove of the linkage plate 1151 by a sliding shaft 1153, and the linkage arms 1152 of adjacent linkage arm groups are hingedly connected to the sliding shaft 1153.

[0089] Specifically, the end of each structural beam can be connected to all the linkage plates of the linkage mechanism, or the end of each structural beam can be connected to several corresponding linkage plates of the linkage mechanism, as long as the number of linkage plates is not less than the number of structural beams. In this way, when the structural beam 110 is connected to the lower screen assembly, the two adjacent linkage plates 1151 can be adaptively slid by the sliding of the linkage arm 1152 of the linkage arm group on the linkage plate 1151, so as to drive the end of the connecting structural beam 110 to adaptively adjust the lower cooling surface formed by the upper blowing nozzle 112.

[0090] Of course, in order to keep the plurality of structural beams 110 consistent with the lower cooling surface formed by the plurality of blowing nozzles within a certain range, the two adjacent structural beams 110 can also be connected in a chain and link manner.

[0091] Embodiment 5,

[0092] Different from embodiment 4, in the embodiment, a lifting mechanism 113 can be arranged on the lower screen assembly, which is used to drive the whole lower screen assembly to move upward, so that the plurality of mounting beams 310 of the lower screen assembly and the plurality of conveying shafts 210 of the conveying assembly can be closely attached to the plurality of upper blowing nozzles 112 of the upper screen assembly, so that the upper cooling surface formed by the upper blowing nozzle 112 can be expanded or curved along with the lower cooling surface of the lower screen assembly and the glass forming surface of the conveying assembly.

[0093] Embodiment 6,

[0094] Different from embodiment 4, in the embodiment, the lifting mechanism 113 and the arc changing mechanism 314 are not arranged, and a connecting rod can be arranged on each mounting beam 310 of the lower screen assembly, one end of the connecting rod can be hingedly connected to the end of the structural beam 110, and the other end of the connecting rod can be hingedly connected to the mounting beam 310, so that the structural beam 110 can be consistent with the deformation of the plurality of mounting beams 310 of the lower screen assembly.

[0095] Of course, on the basis of this structure, the structural beam 110 can be provided in multiple, and two adjacent structural beams 110 are hinged, or the structural beam 110 can be made of a material that can have a certain deformation reset performance, such as a rubber plate or a plastic plate or the like, so that the single structural beam 110 can directly deform.

[0096] The same as in example 4, if the structural beam 110 is provided in multiple, the structural beam 110 and the mounting beam 310 below are connected in the form of a connecting rod, or if the structural beam 110 is made of a material that can deform alone, the upper cooling surface formed by the plurality of upper blow nozzles 112 can be kept cylindrical or planar, and the profile or flatness of the structural beam 110 is limited to the allowable range, and generally the profile or flatness is not greater than 5 mm, which can meet the process requirements.

[0097] Of course, it should be noted that if the upper wind grid assembly in examples 4, 5 and 6 is provided with multiple structural beams 110, the number of structural beams 110 should be less than the number of mounting beams 310 of the lower wind grid assembly.

[0098] Specifically, since the structural beam 110 is provided in multiple, a single column of multiple elastic components arranged in the conveying direction and the corresponding multiple upper blow nozzles 112 form a group, and each group of upper blow nozzles 112 corresponds to a group of multiple lower blow nozzles 311 arranged on the mounting beam 310, at least two groups of multiple elastic components and corresponding multiple upper blow nozzles 112 should be arranged on a single structural beam 110, so as to reduce the arrangement of the structural beam 110, and even if the number of structural beams 110 is increased, since the elastic component is used to increase the installation distance between the upper blow nozzle 112 and the structural beam 110, the air return path is also increased, the air return speed and air pressure are reduced, and thus the strip stress spot can be effectively reduced.

[0099] Example 7,

[0100] On the basis of the structures of examples 1-6, the top end surfaces of the multiple mounting beams 310 collectively form a mounting surface, the blowing end surfaces of the multiple lower blow nozzles 311 collectively form a lower cooling surface, and the end surfaces of the multiple conveying shafts 210 form a glass forming surface; the normal distance between the glass forming surface and the mounting surface is H; the normal distance between the glass forming surface and the lower cooling surface is h; and both satisfy H / h≥2 and 80mm≥h≥25mm.

[0101] Since the cooling air blown out by the lower blowing nozzles 311 is uniform, if the normal distance between the glass forming surface and the lower cooling surface is large, and the distance is larger relative to the normal distance between the glass forming surface and the mounting beam 310, the uniform cooling effect of the cooling air blown out by the lower blowing nozzles 311 on the glass is weakened, and the influence of the mounting beam 310 on the cooling air return channel is intensified. Thus, it is inevitable that parallel band-shaped stress spots and band-shaped stress differences are shown on the glass product, which has a negative impact on the optical quality and application experience of the glass product.

[0102] Therefore, in the embodiment, the normal distance between the glass forming surface of the conveying assembly and the lower cooling surface formed by the lower blowing nozzles 311 of the lower air baffle assembly is appropriately reduced, but not too small, and is set to 80mm≥h≥25mm; the normal distance h between the glass forming surface and the lower cooling surface is appropriately reduced relative to the normal distance H between the glass forming surface and the mounting surface, and is set to H / h≥2; the two measures emphasize the uniform cooling effect of the uniform cooling air blown out by the lower blowing nozzles 311 on the glass, and weaken the influence of the mounting beam 310 on the cooling air return channel. For the above reasons, the parallel band-shaped stress spots and band-shaped stress differences shown on the product glass according to the technical solution of the present application will be greatly reduced, and the optical quality and application experience will be greatly improved.

[0103] In addition, the installation of the plurality of upper blowing nozzles 112 in the upper air baffle assembly by replacing the upper mounting beam 310 with the plurality of elastic members in the above-mentioned embodiments 1-6 can also weaken the influence of the mounting structure on the upper surface of the glass forming surface on the return air volume, so that the parallel band-shaped stress spots and band-shaped stress differences shown on the product glass according to the technical solution of the present application will be greatly reduced, and the optical quality and application experience will be greatly improved.

[0104] Embodiment 8,

[0105] On the basis of the structures of the above-mentioned embodiments 1-7, the conveying shaft 210 is made of a flexible material and is used to link with the adjacent two mounting beams 310 when they rotate relative to each other, that is, when the adjacent two mounting beams 310 rotate, if the mounting surface formed by the plurality of mounting beams 310 forms a circular arc shape, the flexible conveying shaft 210 can deform along the circular arc-shaped mounting surface, and when the plurality of mounting beams 310 are in an unfolded planar state, the conveying shaft 210 can reset to an unfolded planar state under the action of its flexibility.

[0106] Of course, if the conveying shaft 210 is not made of flexible material, the conveying shaft 210 can be formed of shaft segments that can be hingedly connected to each other, that is, the conveying shaft 210 can be formed of a plurality of shaft segments that can be hingedly connected to each other in the extension manner of the mounting beam 310, and when the two mounting beams 310 rotate relative to each other, the adjacent two shaft segments can be arc-shaped with the rotation. On the basis of this structure, the shaft segments can be separate motorized rollers.

[0107] Embodiment 9,

[0108] On the basis of the structures of the above embodiments 1-8, the end of the structural beam 110 in this embodiment is provided with a contact body 114 that can elastically abut against the mounting beam 310. Since the upper wind grate assembly is not provided with the arc-shape changing mechanism 314, if the structural beam 110 of the upper wind grate assembly cannot abut against the mounting beam 310 of the lower wind grate assembly under the driving of the lifting mechanism 113, or in the case where there is no lifting mechanism 113, the structural beam 110 and the mounting beam 310 cannot abut against each other due to structural reasons, the contact body 114 is arranged at each end of the structural beam 110, which can compensate for the distance between the arc-shape changing structure of the structural beam 110 and the mounting beam 310, so that the two are close to each other, facilitating the linkage of the structural beam 110 of the upper wind grate assembly and the mounting beam 310 of the lower wind grate assembly, and when the arc-shape changing mechanism 314 of the lower wind grate assembly drives the mounting beam 310 to change the arc-shape, the contact body 114 of the structural beam 110 abuts against the mounting beam 310, which can drive the structural beam 110 to change the arc-shape.

[0109] Embodiment 10,

[0110] On the basis of the structure of any one of the above embodiments 1-9, this embodiment provides an arc-shape changing manner, the arc-shape changing mechanism 314 includes a plurality of arc-shape changing single plates and an arc-shape changing single plate driving member, and adjacent two arc-shape changing single plates can be hingedly connected to each other by a universal joint, and the arc-shape changing single plate driving member is used to drive the plurality of arc-shape changing single plates to rotate, and the end of the mounting beam 310 is connected to the arc-shape changing single plate.

[0111] On the basis of this structure, when the arc-shape of the plurality of mounting beams 310 is changed, the arc-shape changing single plates can be driven by the arc-shape changing baffle driving member, and the rotation of one of the arc-shape changing single plates can link the rotation of the adjacent other arc-shape changing single plate, and the mounting beam 310 connected to the arc-shape changing single plate can change the position with the arc-shape changing single plate, and change between the plane and the arc surface.

[0112] It should be noted that the above arc-shape changing single plates are hingedly connected by a universal joint, and the universal joint can be a universal joint in the prior art, and the adjacent two arc-shape changing single plates can be telescopic, which can meet the arc-shape changing requirement in different curvature radius states.

[0113] Of course, the variable-arc mechanism 314 can also be realized by a chain structure in the prior art, with the chain links serving as mounting bases, mounting seats being arranged on the chain links, and the end portions of the mounting beams 310 being pivotally connected to the mounting seats, so that the mounting beams 310 connected with the chain links can swing to form a certain arc along with the chain.

[0114] It should be noted that, on the basis of the structure of Embodiment 9, the contact body 114 is arranged on the structural beam 110, and the contact body 114 can specifically abut against the variable-arc single-plate structure in the embodiment, so that the structural beam 110 can be linked with the variable-arc single-plate structure to change the arc along with the change of the arc of the variable-arc single-plate structure.

[0115] Embodiment 11,

[0116] A production process of bent tempered glass, comprising,

[0117] Step S0: The lower air grid assembly is flattened, the glass forming surface and the lower cooling surface are both in a planar state, and the entering of the heated glass is waited for;

[0118] Step S1: The heated glass in the heating furnace enters the glass forming surface through the conveying assembly;

[0119] Step S2: The glass forming is completed; before the end of the step, the upper air grid assembly is lowered under the action of the lifting mechanism, closely abuts against the lower air grid assembly, and is formed along with the lower air grid assembly, and the upper cooling surface is in a circular arc state;

[0120] Sub-step S21: The lower air grid assembly is changed from the flattened state to the circular arc state under the driving of the variable-arc mechanism, the glass forming surface and the lower cooling surface are in the circular arc state, and the glass is preliminarily formed by closely abutting against the glass forming surface under the action of gravity;

[0121] Sub-step S22: The glass supported on the glass forming surface reciprocates along the glass conveying direction to complete the correction of the shape of the glass and finally form the glass;

[0122] Step S3: The glass continuously reciprocates along the glass conveying direction on the glass forming surface; meanwhile, the upper blowing nozzles of the upper air grid assembly and the lower blowing nozzles of the lower air grid assembly blow air to the surface of the glass to complete the shaping, tempering, and cooling of the glass;

[0123] Step S4: The lifting mechanism lifts the upper air grid assembly, and the finished product glass is output under the action of the conveying assembly.

[0124] It should be noted that the production process of the bent tempered glass in the embodiment is implemented on the basis of the structures of Embodiments 1-10,

[0125] In the process of bending glass forming, the glass formed in the heating furnace can be conveyed along the conveying direction by the conveying assembly through the plurality of conveying shafts, and the glass forming surface formed by the plurality of conveying shafts can support the glass. When the glass is conveyed between the upper air grid assembly and the lower air grid assembly, it should be noted that the adjacent two mounting beams can be driven to rotate relative to each other by the arc changing mechanism. In this way, the plane formed by the plurality of mounting beams can be changed from a plane to an arc surface. Since the plurality of conveying shafts are arranged above the plurality of mounting beams, when the plurality of mounting beams are switched to an arc surface, the glass forming surface formed by the plurality of conveying shafts can be switched to form a matching arc surface to bend the glass on the glass forming surface. At the same time, since the plurality of upper blowing nozzles are above the glass forming surface, and the upper blowing nozzles are connected to the structural beam by elastic members, when the glass is bent, the upper surface of the glass will be bent. The force in the process can drive the upper cooling surface formed by the plurality of upper blowing nozzles to bend.

[0126] When the mounting beams of the lower air grid assembly are driven to rotate by the arc changing mechanism to form a plane expansion state, the plurality of elastic members of the upper air grid assembly can be reset to drive the plurality of upper blowing nozzles connected thereto to reset to form an initial plane state structure. In this way, only the arc changing mechanism needs to be arranged on the lower air grid assembly, and the upper air grid assembly can be matched with the lower air grid assembly by the elastic member to realize arc switching, reduce the setting of the arc structure on the upper air grid assembly, and the structure is simple.

[0127] In addition, if the arc changing mechanism is arranged on the upper air grid assembly, a plurality of longitudinal mounting beams need to be arranged correspondingly. The longitudinal mounting beams extend in unison with the mounting beams of the lower air grid assembly and are arranged in the conveying direction. The arc changing mechanism drives the plurality of longitudinal mounting beams to rotate to realize arc changing. On the basis of such a structure, the plurality of upper blowing nozzles are mounted on the longitudinal mounting beams. In this way, when the upper blowing nozzles blow downward, each longitudinal mounting beam will form a black body radiation on the upper surface of the glass, causing a light spot, and the longitudinal mounting beam will also block part of the air, causing insufficient air volume. After the upper blowing nozzles blow downward, air needs to be returned. If a plurality of upper blowing nozzles are arranged at intervals on the longitudinal mounting beams, the gap between the adjacent two adjacent mounting beams is small, causing small air return volume, generating a strip-shaped stress spot parallel to the conveying direction along the arrangement of the longitudinal mounting beams, and a strip-shaped stress difference.

[0128] Therefore, in the embodiment, the structural beam is used as the mounting base of the elastic component, and the multiple elastic components are used to replace the longitudinal mounting beam of the upper air grid assembly in the prior art. That is, the upper air blowing nozzles in the prior art are directly assembled on the longitudinal mounting beam, while in the embodiment, the upper air blowing nozzles are connected to the structural beam through the elastic components, so that the distance between the upper air blowing nozzles and the structural beam is increased, and the air return path is also increased, the air return speed and the air pressure are reduced, and thus the strip stress spot can be effectively reduced.

[0129] That is, the strip difference in the intensity of thermal radiation to the glass and the cooling air return path to the glass caused by the longitudinal mounting beam of the upper air grid assembly does not exist, that is, the upper air grid assembly of the technical scheme of the present application will not generate the strip stress spot and the strip stress difference along the conveying direction parallel to the arrangement of the longitudinal mounting beam.

[0130] Of course, since the structural beam is used as the mounting base of the elastic component, and the multiple elastic components are used to replace the longitudinal mounting beam of the upper air grid assembly in the prior art, that is, the upper air blowing nozzles in the prior art are directly assembled on the longitudinal mounting beam, while in the embodiment, the upper air blowing nozzles are connected to the structural beam through the elastic components, so that the distance between the upper air blowing nozzles and the structural beam is increased, and the air return path is also increased, the air return speed and the air pressure are reduced, and thus the strip stress spot can be effectively reduced.

[0131] Further, in the embodiment, the elastic component is a linear elastic component, the linear elastic component is suspended at the bottom end of the structural beam, and the upper air blowing nozzle can be arranged at the bottom end of the linear elastic component; the linear elastic component is bent under stress, and can restore to a straight line state after the stress is removed.

[0132] Specifically, the linear elastic component is shaped according to the distribution position of the structural beam, and the multiple upper air blowing nozzles are indirectly shaped along the array of the linear elastic component; if the multiple mounting beams of the lower air grid assembly are in a planar expansion state under the action of the arc changing mechanism, the upper cooling surface formed by the upper air blowing nozzles of the upper air grid assembly is a plane parallel to the shaping surface of the glass; if the multiple mounting beams of the lower air grid assembly are in a circular arc state under the action of the arc changing mechanism, the multiple linear elastic components of the upper air grid cooling surface can shrink along with the arc change of the glass shaping surface, so that the upper cooling surface formed by the multiple upper air blowing nozzles connected thereto forms a cylindrical surface concentric with the glass shaping surface.

[0133] Further, before the step S21, the upper air grid assembly is closely arranged on the flattened lower air grid assembly, and the lower air grid assembly is deformed into a circular arc state under the action of the arc changing mechanism, so as to drive the upper air grid assembly to be in a matching circular arc state.

[0134] It should be noted that in all the above examples, the conveying assembly is realized by the conveying structure formed by the plurality of conveying shafts, and in other cases, the conveying assembly can also be realized by other structures, such as the interval distribution conveying rubber roller or the interval distribution other structures capable of realizing the conveying.

[0135] For those skilled in the art, other various corresponding changes and modifications can be made according to the above described technical solutions and concepts, and all these changes and modifications should belong to the protection scope of the claims of the present application.

Claims

1. A production equipment for bending tempered glass, characterized in that, Comprising, a conveying assembly for conveying glass along a conveying direction; an upper air grid assembly comprising a structural beam, upper blow nozzles and a plurality of elastic components, the plurality of elastic components are connected to the structural beam, and the plurality of elastic components are connected with the upper blow nozzles; each of the upper blow nozzles is arranged above the plurality of conveying assemblies; a lower air grid assembly installed below the plurality of conveying assemblies; comprising a plurality of mounting beams, lower blow nozzles and an arc changing mechanism, the mounting beams extend along the conveying direction, and the mounting beams are arranged in the axial direction of the conveying assemblies; each of the mounting beams is provided with a plurality of lower blow nozzles; the arc changing mechanism is used to drive the adjacent two mounting beams to rotate relatively, so that the surface formed by the plurality of mounting beams is switched between a plane and a circular arc surface; the conveying assemblies are distributed above the plurality of mounting beams, so that the conveying end surface of the conveying assemblies is linked with the rotation arc of the mounting beams; the end of the structural beam is provided with a contact body, and the contact body is used to elastically abut against the mounting beam; when the arc changing mechanism of the lower air grid assembly drives the mounting beam to change the arc, the contact body of the structural beam abuts against the mounting beam, so that the structural beam is driven to change the arc.

2. The apparatus for producing bent tempered glass according to claim 1, wherein The elastic component is a linear elastic component, the linear elastic component is suspended at the bottom end of the structural beam; the elastic component is consistent along the extension direction of the mounting beam; the elastic component is provided in the plurality of upper blow nozzles; the linear elastic component bends after being stressed, and the linear elastic component can restore to a straight line state after removing the stress.

3. The apparatus for producing bent tempered glass according to claim 2, wherein Both sides of the upper blow nozzle are provided with a through hole, and the linear elastic component is provided in the through hole.

4. The apparatus for producing bent tempered glass according to claim 2, wherein The elastic component is a pair of elastic steel wires or a rectangular cross-section elastic steel belt.

5. The apparatus for producing bent tempered glass according to claim 1, wherein The structural beam is provided with an air supply channel, and the air supply channel is communicated with the upper blow nozzle.

6. The apparatus for producing bent tempered glass according to claim 5, wherein The bottom end of the structural beam is provided with a plurality of air outlet holes, and the air outlet holes are communicated with the air supply channel; the air outlet holes and the upper blow nozzles are one-to-one corresponding.

7. The apparatus for producing bent tempered glass according to claim 1, wherein The upper air grid assembly further comprises a lifting mechanism, and the lifting mechanism is used to drive the structural beam to move up and down.

8. The apparatus for producing bent tempered glass according to claim 1, wherein A plurality of structural beams are provided, and the bottom end of each structural beam is provided with a plurality of elastic components; two ends of the plurality of structural beams are each provided with a linkage mechanism for hinged connection.

9. The apparatus for producing bent tempered glass according to claim 8, wherein The linkage mechanism comprises a plurality of linkage plates and a plurality of linkage arm groups, the bottom ends of adjacent two linkage plates are hinged with a hinge shaft; the top ends of the adjacent two linkage plates are slidingly hinged with a linkage arm group; the linkage arm group comprises two linkage arms hinged with each other, one end of the linkage arm is slidingly installed on one of the linkage plates, and the other end of the linkage arm is hinged to the other linkage plate; the end of each structural beam is connected with all the linkage plates of the linkage mechanism or a plurality of corresponding linkage plates, and the number of the linkage plates is not less than the number of the structural beams.

10. The apparatus for producing bent tempered glass according to any one of claims 1 to 9, wherein The top end faces of the plurality of mounting beams collectively form a mounting surface, and the blowing end faces of the plurality of lower blowing nozzles collectively form a lower cooling surface; a conveying end face of the conveying assembly forms a glass forming surface; a normal distance between the glass forming surface and the mounting surface is H; a normal distance between the glass forming surface and the lower cooling surface is h; and H / h≥2 and 80mm≥h≥25mm are satisfied.

11. The apparatus for producing bent tempered glass according to any one of claims 1 to 9, wherein The conveying assembly includes a plurality of conveying shafts that convey the glass along the conveying direction; and the plurality of conveying shafts are arranged above the plurality of mounting beams, so that a conveying end face formed by the plurality of conveying shafts is linked with the rotating arc of the plurality of mounting beams.

12. The apparatus for producing bent tempered glass according to claim 11, wherein The conveying shafts are made of flexible material and are used to link with the rotating arc of the adjacent two mounting beams.

13. A process for producing bent toughened glass, characterized by, The production process is performed by using the production equipment for bending and tempering glass according to any one of claims 1-12, and includes, Step S0: the lower air grid assembly is flattened, the glass forming surface and the lower cooling surface are both in a planar state, and the entering of the heated glass is waited for; Step S1: the heated glass in the heating furnace enters the conveying assembly and is located on the glass forming surface; Step S2: the glass forming is completed; before the end of this step, the upper air grid assembly is lowered by the lifting mechanism, abuts against the lower air grid assembly, and is formed with the upper cooling surface in a circular arc state; Sub-step S21: the lower air grid assembly is driven by the arc changing mechanism to change from the flattened state to the circular arc state, the glass forming surface and the lower cooling surface are in the circular arc state, and the glass is preliminarily formed by abutting against the glass forming surface under the action of gravity; Sub-step S22: the glass supported on the glass forming surface swings back and forth along the glass conveying direction to correct the shape of the glass and finally form the glass; Step S3: the glass continuously swings back and forth on the glass forming surface along the glass conveying direction; at the same time, the upper blowing nozzles of the upper air grid assembly and the lower blowing nozzles of the lower air grid assembly blow air to the surface of the glass to complete the shaping, tempering and cooling of the glass; Step S4: the lifting mechanism lifts the upper air grid assembly, and the finished glass is output by the conveying assembly.

14. The process for producing bent tempered glass according to claim 13, wherein Before the sub-step S21, the upper air grid assembly abuts against the lower air grid assembly in the flattened state, and the lower air grid assembly is deformed to the circular arc state by the arc changing mechanism to drive the upper air grid assembly to the matching circular arc state.

15. An upper windscreen assembly for the production of bent tempered glass, characterized in that, The upper air grid assembly according to any one of claims 1-9.

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