Glass forming system

Abstract

The application provides a glass forming system, relates to the technical field of glass processing, and comprises a heating section, a pre-bending section and a forming section which are sequentially arranged. The heating section comprises a heating roller way and a heating mechanism, and the bending depth of the heating roller way is provided with a first curvature. The pre-bending section comprises a pre-bending roller way and an auxiliary heating mechanism, and the bending depth of the pre-bending roller way is provided with a second curvature, and the second curvature is not less than the first curvature. The forming section comprises a forming roller way and a cooling mechanism, and the bending depth of the forming roller way is provided with a third curvature, and the third curvature is not less than the second curvature. The pre-bending roller way and the forming roller way can form a main curvature direction, and the pre-bending roller way and the forming roller way are arranged in an arc shape to form a secondary curvature direction, so that the bending amplitude in the main curvature direction and the bending amplitude in the secondary curvature direction are controlled, the multi-dimensional composite curved surface is formed on the glass, and the flexibility of the curved surface modeling of the glass is significantly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glass processing, in particular to a glass forming system. BACKGROUND

[0002] With the increasing demand for curved glass, more and more glass forming equipment is put into use, especially continuous tempered glass forming equipment. Single curved glass can be processed by the continuous tempered glass forming equipment, wherein the continuous tempered glass forming equipment can adjust the curvature shape of the tempered glass by configuring different roller bodies and tempered cooling devices. In the prior art, the single curvature roller or the variable diameter roller in the continuous tempered glass forming equipment is usually fixedly arranged, so that the glass directly enters the forming section with an arc structure after passing through the heating section, and then the bending forming and tempered cooling are completed. Although the continuous tempered glass forming equipment has the advantages of high production frequency and low cost, with the development of the automobile industry, the curved modeling of automobile glass is also more complex. The existing continuous tempered glass forming equipment has limitations in producing relatively complex compound curved glass, and cannot meet the generation needs of compound curved glass. Therefore, how to improve the curved performance of the glass forming equipment to meet the generation needs of the compound curved glass has become a technical problem to be solved at present. SUMMARY

[0003] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the present application is to provide a glass forming system for improving the curved performance of the glass forming equipment.

[0004] The above-mentioned purpose of the present application can be realized by adopting the following technical scheme. The present application provides a glass forming system, which comprises, in sequence along a glass conveying path:

[0005] a heating section, the heating section comprising a heating roller way and a heating mechanism arranged at the periphery of the heating roller way, the bending depth of the heating roller way being arranged with a first curvature;

[0006] a pre-bending section, the pre-bending section comprising a pre-bending roller way and an auxiliary heating mechanism arranged at the periphery of the pre-bending roller way, the bending depth of the pre-bending roller way being arranged with a second curvature, the second curvature being not less than the first curvature;

[0007] a forming section, the forming section comprising a forming roller way and a cooling mechanism arranged at the periphery of the forming roller way, the bending depth of the forming roller way being arranged with a third curvature, the third curvature being not less than the second curvature.

[0008] In a preferred embodiment of the present application, the first curvature varies from a horizontal initial state to a first curvature value, and then gradually changes from the first curvature value to a second curvature value; wherein the unit bending change between the first curvature value and the second curvature value is less than the unit bending change between the horizontal initial state and the first curvature value.

[0009] In a preferred embodiment of the present application, the second curvature has a greater bending change than the first curvature, and the second curvature gradually increases from the second curvature value to a third curvature value.

[0010] In a preferred embodiment of the present application, the third curvature gradually increases from the third curvature value to a fourth curvature value, and the fourth curvature value is set as a target curvature value of the glass, and the third curvature has a greater bending change than the second curvature.

[0011] In a preferred embodiment of the present application, the heating roller table includes a first conveying roller group and a first pre-bending roller group arranged downstream of the first conveying roller group, the bending depth of the first pre-bending roller group is arranged as the first curvature, and the first pre-bending roller group includes a plurality of first pre-bending rollers arranged at intervals.

[0012] In a preferred embodiment of the present application, a cooling section is further included, the cooling section includes a cooling roller table, and the cooling roller table is arranged downstream of the forming roller table in the glass conveying path direction, and the cooling roller table includes a plurality of second conveying rollers arranged at intervals.

[0013] In a preferred embodiment of the present application, the pre-bending roller table includes a second pre-bending roller group, the bending depth of the second pre-bending roller group is arranged as the second curvature, and the second pre-bending roller group includes a plurality of second pre-bending rollers, and the plurality of second pre-bending rollers are arranged in an arc shape at intervals in the glass conveying direction.

[0014] In a preferred embodiment of the present application, the forming roller table includes a bending roller group, the bending depth of the bending roller group is arranged as the third curvature, and the bending roller group includes a plurality of bending rollers, and the plurality of bending rollers are arranged in an arc shape at intervals in the glass conveying direction.

[0015] In a preferred embodiment of the present application, the heating mechanism includes a continuous toughening furnace, and the heating roller table is arranged in the continuous toughening furnace.

[0016] In a preferred embodiment of the present application, the auxiliary heating mechanism includes an auxiliary heating device, and the auxiliary heating device is arranged on one side or both sides of the pre-bending roller table in the conveying direction of the pre-bending roller table.

[0017] In a preferred embodiment of the present application, the auxiliary heating device comprises a plurality of air outlet pipes, and a hot air unit corresponding to each of the air outlet pipes, the air outlet pipes being provided with a plurality of air outlet holes arranged at intervals, the air outlet holes being arranged towards the glass conveying path and spaced apart from the glass conveying path by a first distance; or the auxiliary heating device comprises a plurality of heating pipes, each of the heating pipes being arranged along the glass conveying path and spaced apart from the glass conveying path by a first distance.

[0018] In a preferred embodiment of the present application, the cooling mechanism comprises a plurality of cooling nozzles, each of the cooling nozzles being arranged on one side or both sides of the forming roller table along the conveying direction of the forming roller table.

[0019] In a preferred embodiment of the present application, the cooling nozzles comprise air knives, each of the air knives being arranged on both sides of the forming roller table along the conveying direction of the forming roller table, each of the air knives arranged on one side being a first air knife, each of the first air knives being arranged between adjacent curved rollers in a staggered manner, and each of the air knives arranged on the other side being a second air knife, the second air knives being arranged in one-to-one correspondence with the first air knives.

[0020] The technical scheme of the present application has the following remarkable beneficial effects:

[0021] When the glass forming system is in use, the glass to be bent is conveyed by the heating roller table, and the glass is heat treated by the heating mechanism. The heating mechanism can be a continuous tempering furnace, which can heat and temper the glass.

[0022] In addition, the heating roller table is arranged with a first curvature, and the glass after heat treatment can be preliminarily bent by the heating roller table, so that the glass is bent from a horizontal initial state to a first curvature. By controlling the bending change amount of the heating roller table, the curvature change of the heating roller table is small, so as to avoid sudden change of the curvature, which helps to form straight edges of the glass, and further improves the curvature smoothness and edge optical performance of the glass after forming.

[0023] The pre-bending roller table is arranged with a second curvature, and the glass after preliminary bending can be further bent by the pre-bending roller table, so that the glass is bent from the first curvature to the second curvature. By controlling the bending change amount of the pre-bending roller table, the pre-bending roller table can pre-form in the vertical flow direction of the glass, so that the curvature of the glass can be uniformly transitioned, which helps to improve the optical quality of the glass after forming.

[0024] The forming roller way is arranged in a third curvature, and the bending change amount of the third curvature is greater than the bending change amount of the second curvature, so that the forming section also has a trend of gradually deepening the bending depth in the glass conveying direction. The preformed glass can be further bent by the forming roller way, so that the preformed glass is quickly bent into a target shape, and the glass can be cooled to make the glass tempered, thereby improving the forming efficiency.

[0025] Further, the second pre-bending rollers in the pre-bending roller way and the bending rollers in the forming roller way can constitute a main bending direction, and by arranging the pre-bending roller way and the forming roller way in an arc shape, the arc between the plurality of second pre-bending rollers and the plurality of bending rollers can constitute a secondary bending direction, so that by controlling the bending amplitude in the main bending direction and the bending amplitude in the secondary bending direction, a multi-dimensional composite curved surface can be formed on the glass, thereby significantly improving the flexibility of the curved surface modeling of the glass, and better meeting the needs in different use scenarios. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0027] The drawings described herein are for illustrative purposes only, and are not intended to limit the scope of the present application in any way. In addition, the shapes and scale sizes of the components in the drawings are only illustrative, and are used to help understand the present application, and are not specific limitations on the shapes and scale sizes of the components of the present application. Those skilled in the art can select various possible shapes and scale sizes to implement the present application according to specific circumstances under the guidance of the present application.

[0028] Figure 1 Structure schematic diagram of an embodiment of the glass forming system described in the present application;

[0029] Figure 2 Structure schematic diagram of an embodiment of the first pre-bending roller described in the present application;

[0030] Figure 3 Structure schematic diagram of an embodiment of the second pre-bending roller described in the present application;

[0031] Figure 4 Structure schematic diagram of an embodiment of the bending roller described in the present application;

[0032] Figure 5 Structure schematic diagram of an embodiment of the air knife described in the present application.

[0033] Reference signs in the above drawings:

[0034] 10, glass;

[0035] 100, heating section; 110, heating roller; 111, first conveying roller; 112, first pre-bending roller; 120, heating mechanism;

[0036] 200, pre-bending section; 210, pre-bending roller; 211, second pre-bending roller;

[0037] 300, forming section; 310, forming roller; 311, bending roller;

[0038] 400, cooling section; 410, second conveying roller;

[0039] 500, auxiliary heating mechanism; 510, auxiliary heating device;

[0040] 600, cooling mechanism; 610, air knife. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0042] Please refer to Figure 1 As shown in the drawings, the embodiments of the present application provide a glass forming system, which comprises a heating section 100, a pre-bending section 200 and a forming section 300 arranged in sequence along a glass conveying path. The heating section 100 comprises a heating roller 110 and a heating mechanism 120 arranged at the periphery of the heating roller 110. The bending depth of the heating roller 110 is set as a first curvature. The pre-bending section 200 comprises a pre-bending roller 210 and an auxiliary heating mechanism 500 arranged at the periphery of the pre-bending roller 210. The bending depth of the pre-bending roller 210 is set as a second curvature, and the second curvature is not less than the first curvature. The forming section 300 comprises a forming roller 310 and a cooling mechanism 600 arranged at the periphery of the forming roller 310. The bending depth of the forming roller 310 is set as a third curvature, and the third curvature is not less than the second curvature.

[0043] Overall, when the glass forming system is in use, the glass 10 to be bent is conveyed by the heating roller 110, and the glass 10 is heat-treated by the heating mechanism 120, and the heating temperature range of the heating mechanism 120 is 500-700°C. In addition, the bending depth of the heating roller 110 is set to the first curvature, and the glass 10 after being softened by heating can be preliminarily bent by the heating roller 110, so that the glass 10 is bent from the horizontal initial state to the first curvature.

[0044] By setting the bending change amount of the heating roller 110 to the first curvature, the curvature change of the heating roller 110 is small, thereby avoiding sudden change of the curvature, which helps to form straight edges of the glass 10, and further improves the curvature smoothness and edge optical performance of the glass 10 after forming. In addition, the pre-bending roller 210 is set to the second curvature, and the glass 10 after preliminary bending can be further bent by the pre-bending roller 210, so that the glass 10 is bent from the first curvature to the second curvature. In addition, by setting the bending change amount of the pre-bending roller 210 to the second curvature, the pre-bending roller 210 can pre-form in the vertical flow direction of the glass 10, so that the curvature of the glass 10 can be uniformly transitioned, which helps to improve the optical quality of the glass 10 after forming.

[0045] Further, the forming roller 310 is set to the third curvature, and the bending change amount of the third curvature is greater than that of the second curvature, so that the forming section 300 also has the trend that the bending depth gradually deepens in the glass conveying direction. The pre-formed glass 10 can be further bent by the forming roller 310, so as to quickly bend the pre-formed glass 10 to the target shape, and at the same time, the glass 10 can be cooled to be tempered, thereby improving the forming efficiency.

[0046] In the embodiment of the present application, along the glass conveying path direction, the change rule of the first curvature is that the glass 10 changes from the horizontal initial state to the first curvature value, and then gradually changes from the first curvature value to the second curvature value; wherein the unit bending change amount between the first curvature value and the second curvature value is less than the unit bending change amount between the horizontal initial state and the first curvature value.

[0047] By controlling the change rule of the first curvature, the heating roller 110 has the trend that the bending depth gradually deepens in the conveying direction of the glass 10, so as to better bend the glass 10.

[0048] In addition, since the unit bending change amount between the first curvature value and the second curvature value is less than the unit bending change amount between the horizontal initial state and the first curvature value, that is, the change amplitude of the glass 10 between the first curvature value and the second curvature value is less than the change amplitude of the glass 10 between the horizontal state and the first curvature value.

[0049] By reducing the variation range of the glass 10 on the heating roller 110, the bending stability of the glass 10 on the heating roller 110 is improved, the curvature of the glass 10 is prevented from changing suddenly, the glass 10 is helped to form a straight edge, and the curvature smoothness and the edge optical performance of the glass 10 after forming are improved.

[0050] The designer can adjust the range of the first curvature value and the second curvature value according to the use requirement, and the specific numerical limitation is not made herein. For example, in a feasible embodiment, the curvature radius R1 of the first curvature value is 100000 mm, and the curvature radius R2 of the second curvature value is 60000 mm. That is, the glass 10 is bent from the horizontal state to R1, and then gradually bent to R2 by reducing the curvature change from R1.

[0051] Of course, the designer can also uniformly bend the glass 10 from the horizontal state to R2, and the specific limitation is not made herein.

[0052] In the embodiment of the present application, the bending change amount of the second curvature is greater than the bending change amount of the first curvature, and the change rule of the second curvature is that the second curvature value gradually increases to a third curvature value.

[0053] By making the bending change amount of the second curvature greater than the bending change amount of the first curvature, the bending change amount of the glass 10 can be further improved by using the pre-bending section 200. And since the third curvature value is greater than the second curvature value, the pre-bending section 200 also has a trend of gradually deepening the bending depth in the conveying direction of the glass 10, thereby helping to quickly form the glass 10.

[0054] Of course, the designer can adjust the range of the third curvature value according to the production requirement, for example, the curvature radius R3 of the third curvature value can be set to 10000 mm, 20000 mm, 35000 mm, 60000 mm or other numerical values, and the specific limitation is not made herein.

[0055] In the embodiment of the present application, the change rule of the third curvature is that the third curvature value gradually increases to a fourth curvature value, the fourth curvature value is set as the target curvature value of the glass 10, and the bending change amount of the third curvature is greater than the bending change amount of the second curvature.

[0056] By making the bending change amount of the third curvature greater than the bending change amount of the second curvature, the forming section 300 also has a trend of gradually deepening the bending depth in the conveying direction of the glass 10, thereby enabling the glass 10 to be finally bent and formed.

[0057] The designer can adjust the range of the fourth curvature value according to the production requirement, which is not specifically limited herein. Preferably, the curvature radius R4 of the fourth curvature value ranges from 10000 mm to 15000 mm. For example, when the curvature radius R0 of the target curvature value of the glass 10 is 10000 mm, the curvature radius of the fourth curvature value is set to 10000 mm.

[0058] In the embodiment of the present application, as shown in the embodiment shown in Figure 1 and Figure 2 The heating roller table 110 includes a first conveying roller group and a first pre-bending roller group arranged downstream of the first conveying roller group, the bending depth of the first pre-bending roller group is set as a first curvature, and the first pre-bending roller group includes a plurality of first pre-bending rollers 112 arranged at intervals.

[0059] The first conveying roller group can convey the glass 10 to be processed in the heating section 100, and the glass 10 is heat-treated by the heating mechanism 120, so that the glass 10 is tempered.

[0060] Specifically, the heating mechanism 120 includes a continuous tempering furnace, and the heating roller table 110 is arranged in the continuous tempering furnace. Of course, in other feasible embodiments, the designer can adjust the specific structure of the heating mechanism 120 according to the use requirement, which is not specifically limited herein.

[0061] Further, the first conveying roller group includes a plurality of first conveying rollers 111 arranged at intervals, each first conveying roller 111 can be arranged horizontally at intervals, and the first pre-bending roller group includes a plurality of first pre-bending rollers 112 arranged at intervals. And the adjacent first conveying roller 111 and the first pre-bending roller 112 can be tangent to each other, which helps to improve the smoothness of the glass 10 conveying.

[0062] The designer can adjust the number of the first conveying roller 111 and the first pre-bending roller 112 according to the use requirement, which is not specifically limited herein.

[0063] In the embodiment of the present application, the cooling section 400 is also included, the cooling section 400 includes a cooling roller table, and the cooling roller table is arranged downstream of the forming roller table 310 along the glass conveying path direction, and the cooling roller table includes a plurality of second conveying rollers 410 arranged at intervals.

[0064] The glass 10 after the final bending and forming can be output through the cooling roller table, and in the process of conveying the glass 10, the glass 10 can be further cooled on the cooling roller table, thereby improving the cooling effect of the glass 10.

[0065] Specifically, the second conveying rollers 410 are arranged in a horizontal direction at intervals. The designer can adjust the number and height of the second conveying rollers 410 according to the specific structure of the pre-bending section 200 and the forming section 300, which is not specifically limited herein. The second conveying rollers 410 are arranged at different heights from the first conveying rollers 111.

[0066] In an embodiment of the present application, as shown in the embodiments of Figure 1 and Figure 3 , the pre-bending roller table 210 comprises a second pre-bending roller group, the bending depth of the second pre-bending roller group is set as a second curvature, and the second pre-bending roller group comprises a plurality of second pre-bending rollers 211. The plurality of second pre-bending rollers 211 are arranged in an arc shape at intervals along the conveying direction of the glass 10.

[0067] In a specific embodiment, the height of each second pre-bending roller 211 gradually increases along the conveying direction of the glass 10, so that each second pre-bending roller 211 can be arranged in an arc shape.

[0068] By arranging the plurality of second pre-bending rollers 211 in an arc shape, the curvature between the plurality of second pre-bending rollers 211 can form a secondary curvature direction, and the plurality of second pre-bending rollers 211 themselves can form a primary curvature direction.

[0069] By controlling the bending amplitude in the primary curvature direction and the bending amplitude in the secondary curvature direction, a multi-dimensional composite curved surface can be formed on the glass 10, which significantly improves the flexibility of the curved surface modeling of the glass 10, thereby better meeting the needs in different use scenarios.

[0070] The designer can adjust the number and arc arrangement of the second pre-bending rollers 211 according to the needs, which is not specifically limited herein.

[0071] In an embodiment of the present application, as shown in the embodiments of Figure 1 and Figure 4 , the forming roller table 310 comprises a bending roller group, the bending depth of the bending roller group is set as a third curvature, and the bending roller group comprises a plurality of bending rollers 311. The plurality of bending rollers 311 are arranged in an arc shape at intervals along the conveying direction of the glass 10.

[0072] In a specific embodiment, the height of each bending roller 311 gradually increases along the conveying direction of the glass 10, so that each bending roller 311 can be arranged in an arc shape. The adjacent bending rollers 311 and second pre-bending rollers 211 can be tangent to each other, thereby ensuring the smoothness of the glass 10 during conveying and improving the forming quality of the glass 10.

[0073] By arranging the plurality of bending rollers 311 in an arc shape, the curvature between the plurality of bending rollers 311 can form a secondary curvature direction, and in the secondary curvature direction, the two ends of the glass 10 can be bent inward.

[0074] The plurality of bending rollers 311 can form a main bending direction, in which the glass 10 can be bent inwardly on both sides. By controlling the bending amplitude in the main bending direction and the bending amplitude in the secondary bending direction, the glass 10 can be finally formed into a multi-dimensional compound curved surface.

[0075] The designer can adjust the number and the arc arrangement of the bending rollers 311 according to the use requirements, which is not specifically limited herein.

[0076] In the embodiments of the present application, the movement rates of the first pre-bending roller 112, the second pre-bending roller 211 and the bending roller 311 are consistent. Alternatively, the movement rate of the first pre-bending roller 112 is less than the movement rate of the second pre-bending roller 211, and the movement rate of the second pre-bending roller 211 is less than the movement rate of the bending roller 311.

[0077] In the embodiments of the present application, the auxiliary heating mechanism 500 includes auxiliary heating devices 510, which are arranged on one side or both sides of the pre-bending roller way 210 along the conveying direction of the pre-bending roller way 210. Here, the one side or both sides of the pre-bending roller way 210 refer to the upper and lower sides of the pre-bending roller way 210.

[0078] By arranging the auxiliary heating devices 510 on one side or both sides of the pre-bending roller way 210, the auxiliary heating devices 510 can help maintain the temperature of the glass 10, avoiding the glass 10 from being cooled too quickly and affecting the subsequent bending effect. The heating temperature range of the auxiliary heating devices 510 is 500-700°C.

[0079] Preferably, the auxiliary heating devices 510 are arranged on the upper and lower sides of the pre-bending roller way 210 along the conveying direction of the pre-bending roller way 210, respectively.

[0080] By arranging the auxiliary heating devices 510 on the upper and lower sides of the pre-bending roller way 210, respectively, the glass 10 can be heated more uniformly, avoiding or reducing the problem of uneven heating of the glass 10.

[0081] By arranging the auxiliary heating devices 510 staggered between adjacent pre-bending roller ways 210, the auxiliary heating devices 510 are prevented from being interfered by the pre-bending roller ways 210, improving the heating effect of the auxiliary heating devices 510. Moreover, by arranging the auxiliary heating devices 510 on the upper side of the pre-bending roller way 210 and the auxiliary heating devices 510 on the lower side of the pre-bending roller way 210 correspondingly, the auxiliary heating devices 510 on the upper and lower sides of the pre-bending roller way 210 can uniformly heat the upper and lower surfaces of the glass 10.

[0082] Further, the auxiliary heating device 510 comprises a plurality of air outlet pipes and a plurality of hot air units corresponding to the air outlet pipes. The air outlet pipes are provided with a plurality of air outlet holes arranged at intervals. The air outlet holes are arranged towards the conveying path of the glass 10 and are spaced apart from the conveying path of the glass 10 by a first distance. The hot air can be delivered to the glass 10 through the air outlet pipes to heat the glass 10, thereby achieving convection heating.

[0083] In an embodiment, the hot air unit comprises a compressed air source, a proportional valve and a preheating pipe arranged on the air pipe. The preheating pipe can be used to heat air. In order to ensure the heating effect of the preheating pipe, the length of the preheating pipe is 4m to 10m.

[0084] In order to improve the uniformity of the air outlet holes, the air outlet pipes are arranged in the shape of the second pre-bending roller 211. The air outlet pipes and the second pre-bending roller 211 have corresponding bending depths, so that the hot air can be uniformly blown to the glass 10 through the air outlet holes.

[0085] The designer can adjust the number, size and arrangement of the air outlet holes according to the needs, which are not limited here. For example, in an embodiment, the diameter of the air outlet hole is 0.5mm to 5mm, the distance between adjacent air outlet holes is 25mm to 60mm, and the first distance between the air outlet hole and the conveying path of the glass 10 is 30mm to 120mm.

[0086] In another embodiment, the auxiliary heating device 510 comprises a plurality of heating pipes. The heating pipes are arranged at intervals along the conveying path of the glass 10 and are spaced apart from the conveying path of the glass 10 by a first distance. The heating pipes can heat to achieve radiation heating.

[0087] Preferably, the plurality of heating pipes are arranged on the upper and lower sides of the conveying path of the glass 10, and each heating pipe is arranged at intervals between adjacent second pre-bending rollers 211.

[0088] In order to improve the uniformity of the heating pipes, the heating pipes are arranged in the shape of the second pre-bending roller 211. The heating pipes and the second pre-bending roller 211 have corresponding bending depths, so that the heating pipes can uniformly heat the glass 10 on the conveying path of the glass.

[0089] Of course, the designer can adjust the specific structure of the auxiliary heating device 510 according to the needs, which is not limited here.

[0090] In a preferred embodiment of the present application, the cooling mechanism 600 comprises a plurality of cooling nozzles, each cooling nozzle being arranged on one side or both sides of the forming roller table 310 along the conveying direction of the forming roller table 310. Here, one side or both sides of the forming roller table 310 refers to the upper and lower sides of the forming roller table 310.

[0091] By arranging the cooling nozzles on one side or both sides of the forming roller table 310, the cooling nozzles can quickly cool and toughen the glass 10, having better cooling efficiency.

[0092] Specifically, as shown in the embodiment shown in Figure 5 each first air knife 610 is arranged between adjacent bending rollers 311 in a staggered manner, and each second air knife 610 is arranged corresponding to each first air knife 610.

[0093] The air knives 610 can spray high-speed low-temperature airflow, and the high-speed low-temperature airflow can quickly cool the glass 10, having better cooling efficiency.

[0094] Moreover, by arranging the air knives 610 in a staggered manner between adjacent bending rollers 311, interference of the bending rollers 311 with the air knives 610 is avoided, improving the cooling effect of the air knives 610. Moreover, by arranging the first air knives 610 and the second air knives 610 in a corresponding manner, the first air knives 610 and the second air knives 610 can uniformly spray high-speed low-temperature airflow to the upper and lower surfaces of the glass 10, improving the cooling uniformity.

[0095] In the prior art, when multiple cooling nozzles are arranged, there is generally an intermittent space between adjacent cooling nozzles. When the glass 10 is in the conveying process, if the edge position of the glass 10 is exactly between two cooling nozzles, the temperature reduction speed of the edge of the glass 10 is different from that of other parts of the glass 10, which further causes the edge of the glass 10 to be wavy or other non-uniform transition, thereby reducing the transition smoothness of the glass 10.

[0096] The air knives 610 of the present application have a knife-edge-shaped air outlet, so that the air outlet of the air knife 610 is arranged continuously, which is conducive to improving the transition smoothness of the glass 10.

[0097] In the use of the air knives 610, by controlling the length of the outlet of the air knife 610, the high-speed low-temperature airflow sprayed by the air knife 610 can be fully conveyed to the glass 10 to be cooled, having better cooling efficiency, thereby improving the toughening effect of the glass 10.

[0098] The designer can adjust the blade width of the air knife 610 according to the use requirements, and no specific numerical value is limited here. Preferably, the blade width of the air knife 610 is 4mm to 15mm.

[0099] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for all purposes. The term "essentially consisting of..." describing a combination should include the identified elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel features of the combination. The use of the terms "comprising" or "including" to describe the combination of elements, ingredients, parts or steps herein also contemplates an embodiment that is essentially composed of these elements, ingredients, parts or steps. By using the term "may", it is intended to illustrate that any attribute described that "may" include is optional. Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "an" used to describe an element, ingredient, part or step is not intended to exclude other elements, ingredients, parts or steps.

[0100] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A glass forming system characterized by, The glass conveying path comprises, in sequence: a heating section, the heating section comprising a heating roller bed and a heating mechanism arranged at the periphery of the heating roller bed, the bending depth of the heating roller bed being arranged with a first curvature, and the variation of the first curvature being from a horizontal initial state to a first curvature value, and then gradually from the first curvature value to a second curvature value along the direction of the glass conveying path; wherein the unit bending variation between the first curvature value and the second curvature value is less than the unit bending variation between the horizontal initial state and the first curvature value; a pre-bending section, the pre-bending section comprising a pre-bending roller bed and an auxiliary heating mechanism arranged at the periphery of the pre-bending roller bed, the bending depth of the pre-bending roller bed being arranged with a second curvature, and the variation of the second curvature being not less than the variation of the first curvature; a forming section, the forming section comprising a forming roller bed and a cooling mechanism arranged at the periphery of the forming roller bed, the bending depth of the forming roller bed being arranged with a third curvature, and the variation of the third curvature being not less than the variation of the second curvature.

2. The glass forming system of claim 1, wherein, The bending variation of the second curvature is greater than the bending variation of the first curvature, and the variation of the second curvature is gradually increased from the second curvature value to a third curvature value.

3. The glass forming system according to claim 2, wherein: The variation of the third curvature is gradually increased from the third curvature value to a fourth curvature value, the fourth curvature value being arranged as a target curvature value of the glass, and the bending variation of the third curvature is greater than the bending variation of the second curvature.

4. The glass forming system of claim 1, wherein, The heating roller bed comprises a first conveying roller group and a first pre-bending roller group arranged downstream of the first conveying roller group, the bending depth of the first pre-bending roller group being arranged with the first curvature, the first conveying roller group comprising at least one first conveying roller, and the first pre-bending roller group comprising a plurality of first pre-bending rollers arranged at intervals.

5. The glass forming system according to claim 4, wherein: The cooling section further comprises a cooling roller bed arranged downstream of the forming roller bed along the direction of the glass conveying path, the cooling roller bed comprising a plurality of second conveying rollers arranged at intervals.

6. The glass forming system of claim 1, wherein, The pre-bending roller bed comprises a second pre-bending roller group, the bending depth of the second pre-bending roller group being arranged with the second curvature, the second pre-bending roller group comprising a plurality of second pre-bending rollers arranged in an arc shape at intervals along the conveying direction of the glass.

7. The glass forming system of claim 1, wherein, The forming roller bed comprises a bending roller group, the bending depth of the bending roller group being arranged with the third curvature, the bending roller group comprising a plurality of bending rollers arranged in an arc shape at intervals along the conveying direction of the glass.

8. The glass forming system of claim 1, wherein, The auxiliary heating mechanism comprises an auxiliary heating device arranged on one side or both sides of the pre-bending roller bed along the conveying direction of the pre-bending roller bed.

9. The glass forming system according to claim 8, wherein: The auxiliary heating device comprises a plurality of air outlet pipes and a hot air unit corresponding to each air outlet pipe, the air outlet pipes being provided with a plurality of air outlet holes arranged at intervals, the air outlet holes being arranged towards the glass conveying path and spaced apart from the glass conveying path by a first distance; or The auxiliary heating device comprises a plurality of heating tubes, each of which is arranged along the glass conveying path at a first distance from the glass conveying path.

10. The glass forming system of claim 8, wherein, The cooling mechanism comprises a plurality of cooling nozzles, each of which is arranged on one side or both sides of the forming roller table along the conveying direction of the forming roller table.

11. The glass forming system of claim 10, wherein, The cooling nozzles comprise air knives, each of which is arranged on both sides of the forming roller table along the conveying direction of the forming roller table.

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