Glass forming system

Abstract

The invention provides a glass forming system, and relates to the technical field of glass processing.The glass forming system 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 set as a first curvature; the pre-bending section comprises a pre-bending roller way and an auxiliary heating mechanism, the bending depth of the pre-bending roller way is set as a second curvature, and the second curvature is not smaller than the first curvature; the forming section comprises a forming roller way and a cooling mechanism, the bending depth of the forming roller way is set as a third curvature, and the third curvature is not smaller than the second curvature. The pre-bending roller way and the forming roller way can form a main bending direction, and the pre-bending roller way and the forming roller way are arranged in an arc shape to form an auxiliary bending direction, so that a multi-dimensional composite curved surface is favorably formed on glass by controlling the bending amplitude in the main bending direction and the bending amplitude in the auxiliary bending direction; and the curved surface modeling flexibility of the glass is obviously improved.

Description

Technical Field

[0001] The invention relates to the technical field of glass processing, and in particular to a glass forming system. Background Art

[0002] With the increasing demand for curved glass, more and more glass forming equipment is being put into use, especially continuous tempered glass forming equipment. Continuous tempered glass forming equipment can process single curved glass, wherein the continuous tempered glass forming equipment can adjust the curvature shape of the tempered glass by configuring different rollers and tempering cooling devices. In the prior art, the single curved roller or the variable diameter roller in the continuous tempered glass forming equipment is usually fixed, so that the glass directly enters the forming section with an arc structure after passing through the heating section, and then completes the bending forming and tempering cooling. 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 surface modeling of automobile glass has become more complicated. The existing continuous tempered glass forming equipment has limitations in the production of more complex composite curved glass and cannot meet the generation needs of composite curved glass. Therefore, how to improve the curved surface bending performance of the glass forming equipment to meet the generation needs of composite curved glass has become a technical problem that needs to be solved urgently. Summary of the invention

[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 invention is to provide a glass forming system for improving the curved surface bending performance of glass forming equipment.

[0004] The above-mentioned object of the present invention can be achieved by adopting the following technical solutions. The present invention provides a glass forming system, comprising:

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

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

[0007] The forming section includes a forming roller and a cooling mechanism arranged on the periphery of the forming roller. The bending depth of the forming roller is set at a third curvature, and the third curvature is not less than the second curvature.

[0008] In a preferred embodiment of the present invention, along the direction of the glass conveying path, the change pattern of the first curvature is: changing from a horizontal initial state to a first curvature value, and then gradually changing 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 smaller than the unit bending change between the horizontal initial state and the first curvature value.

[0009] In a preferred embodiment of the present invention, the bending change amount of the second curvature is greater than the bending change amount of the first curvature, and the changing rule of the second curvature is: gradually increasing from the second curvature value to a third curvature value.

[0010] In a preferred embodiment of the present invention, the changing rule of the third curvature is: gradually increasing from the third curvature value to a fourth curvature value, the fourth curvature value is set as the target curvature value of the glass, and the bending change of the third curvature is greater than the bending change of the second curvature.

[0011] In a preferred embodiment of the present invention, the heating roller 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 is set at the first curvature, and the first pre-bending roller group comprises a plurality of first pre-bending rollers arranged at intervals.

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

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

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

[0015] In a preferred embodiment of the present invention, the heating mechanism comprises a continuous tempering furnace, and the heating roller is arranged in the continuous tempering furnace.

[0016] In a preferred embodiment of the present invention, 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 along the conveying direction of the pre-bending roller.

[0017] In a preferred embodiment of the present invention, the auxiliary heating device includes a plurality of air outlet pipes and a hot air unit corresponding to each of 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 toward the glass conveying path and are arranged at a first distance from the glass conveying path; or the auxiliary heating device includes a plurality of heating tubes, each of the heating tubes is arranged at intervals along the glass conveying path and is arranged at a first distance from the glass conveying path.

[0018] In a preferred embodiment of the present invention, the cooling mechanism includes a plurality of cooling nozzles, and each of the cooling nozzles is arranged on one side or both sides of the forming roller along the conveying direction of the forming roller.

[0019] In a preferred embodiment of the present invention, the cooling nozzle includes wind knives, and each of the wind knives is respectively arranged on both sides of the forming roller along the conveying direction of the forming roller, and each of the wind knives located on one side is a first wind knife, and each of the first wind knives is staggered between adjacent bending rollers, and each of the wind knives located on the other side is a second wind knife, and the second wind knives are arranged one-to-one with the first wind knives.

[0020] The technical solution of the present invention has the following significant beneficial effects:

[0021] When the glass forming system of the present invention is used, the glass to be bent is conveyed by the heating roller, and the glass is heat treated by the heating mechanism. The heating mechanism can be set as a continuous tempering furnace, and the glass can be heated and tempered by the continuous tempering furnace.

[0022] Furthermore, the heating roller is set at a first curvature, and the heat-treated glass can be initially bent by the heating roller, so that the glass is bent from a horizontal initial state to the first curvature. The curvature change of the heating roller is controlled to be small, thereby avoiding sudden changes in the curvature, which helps to form a straight edge for the glass, thereby improving the curvature smoothness and edge optical performance of the glass after forming.

[0023] The pre-bending roller is set at a second curvature, and the glass after the initial bending can be further bent by the pre-bending roller, so that the glass is bent from the first curvature to the second curvature. Among them, by controlling the bending change amount of the pre-bending roller, the pre-bending roller can pre-form in the vertical flow direction of the glass, so that the curvature of the glass can transition evenly, which helps to improve the optical quality of the glass after forming.

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

[0025] Furthermore, the second pre-bending roller in the pre-bending roller and the bending roller in the forming roller can constitute a main curvature direction, and by arranging the pre-bending roller and the forming roller in an arc shape, the arc between multiple second pre-bending rollers and multiple bending rollers can constitute a secondary curvature direction, thereby helping to form a multi-dimensional composite curved surface on the glass by controlling the bending amplitude in the main curvature direction and the bending amplitude in the secondary curvature direction, significantly improving the flexibility of the curved surface modeling of the glass, thereby better meeting the needs of different usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the figures are only schematic, used to help understand the present invention, and are not specifically limited to the shapes and proportional dimensions of the various components of the present invention. Those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to the teachings of the present invention.

[0028] Figure 1 A schematic structural diagram of an embodiment of the glass forming system of the present invention;

[0029] Figure 2 A schematic side view of the structure of an embodiment of the first pre-bending roller of the present invention;

[0030] Figure 3 A schematic side view of the structure of an embodiment of the second pre-bending roller of the present invention;

[0031] Figure 4 A schematic side view of the structure of an embodiment of the bending roller of the present invention;

[0032] Figure 5 It is a schematic diagram of the three-dimensional structure of an embodiment of the wind knife described in the present invention.

[0033] Reference numerals 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 following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Please refer to Figure 1 As shown, a glass forming system is provided in an embodiment of the present invention, comprising 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 comprising a heating roller 110 and a heating mechanism 120 arranged on the periphery of the heating roller 110, the bending depth of the heating roller 110 being set at a first curvature; the pre-bending section 200 comprising a pre-bending roller 210 and an auxiliary heating mechanism 500 arranged on the periphery of the pre-bending roller 210, the bending depth of the pre-bending roller 210 being set at a second curvature, the second curvature being not less than the first curvature; the forming section 300 comprising a forming roller 310 and a cooling mechanism 600 arranged on the periphery of the forming roller 310, the bending depth of the forming roller 310 being set at a third curvature, the third curvature being not less than the second curvature.

[0043] In general, when the glass forming system is used, 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° C.-700° C. In addition, the bending depth of the heating roller 110 is set to a first curvature, and the heated and softened glass 10 can be preliminarily bent by the heating roller 110, so that the glass 10 is bent from a horizontal initial state to the first curvature.

[0044] By setting the bending variation of the heating roller 110 to the first curvature, the curvature variation of the heating roller 110 is small, thereby avoiding sudden changes in the curvature, which helps to form a straight edge of the glass 10, thereby improving 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 pre-bending roller 210 can continue to bend the glass 10 after the initial bending, so that the glass 10 is bent from the first curvature to the second curvature. In addition, by setting the bending variation of the pre-bending roller 210 to the second curvature, the pre-bending roller 210 can pre-form the glass 10 in the vertical flow direction, so that the curvature of the glass 10 can transition evenly, which helps to improve the optical quality of the glass 10 after forming.

[0045] Furthermore, the forming roller 310 is set to have a third curvature, and the bending variation of the third curvature is greater than the bending variation of the second curvature, so that the forming section 300 also has a tendency of gradually deepening the bending depth in the glass conveying direction. The preformed glass 10 can be further bent by the forming roller 310, so that the preformed glass 10 can be quickly bent into a target shape, and the glass 10 can be cooled to be tempered, thereby improving the forming efficiency.

[0046] In an embodiment of the present invention, along the direction of the glass conveying path, the change rule of the first curvature is: changing from a horizontal initial state to a first curvature value, and then gradually changing 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 smaller than the unit bending change between the horizontal initial state and the first curvature value.

[0047] By controlling the changing rule of the first curvature, the heating roller 110 has a tendency of gradually deepening the bending depth in the conveying direction of the glass 10 , so that the glass 10 can be bent better.

[0048] Moreover, since the unit bending change between the first curvature value and the second curvature value is smaller than the unit bending change 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 smaller 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 by the heating roller 110 is improved, sudden changes in the curvature of the glass 10 are avoided, and the glass 10 is helped to form straight edges, thereby improving the curvature smoothness and edge optical properties of the glass 10 after forming.

[0050] The designer can adjust the range of the first curvature value and the second curvature value according to the use requirements, and no specific numerical value is limited here. 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 a horizontal state to R1, and then the curvature change decreases from R1, and is gradually bent to R2.

[0051] Of course, the designer may also evenly bend the glass 10 from a horizontal state to R2, and no specific limitation is made here.

[0052] In an embodiment of the present invention, the bending change amount of the second curvature is greater than the bending change amount of the first curvature, and the changing rule of the second curvature is: gradually increasing from the second curvature value to the third curvature value.

[0053] By making the bending variation of the second curvature greater than the bending variation of the first curvature, the bending variation of the glass 10 can be further increased by using the pre-bending section 200. In addition, since the third curvature value is greater than the second curvature value, the pre-bending section 200 also has a tendency of gradually deepening the bending depth in the conveying direction of the glass 10, thereby facilitating rapid shaping of the glass 10.

[0054] Of course, designers can adjust the range of the third curvature value according to production needs. For example, the curvature radius R3 of the third curvature value can be set to 10000mm, 20000mm, 35000mm, 60000mm or other values, and no specific limitation is made here.

[0055] In an embodiment of the present invention, the change rule of the third curvature is: gradually increasing from the third curvature value to the fourth curvature value, the fourth curvature value is set as the target curvature value of the glass 10, and the bending change of the third curvature is greater than the bending change of the second curvature.

[0056] By making the bending variation of the third curvature greater than the bending variation of the second curvature, the forming section 300 also has a tendency of gradually deepening the bending depth in the conveying direction of the glass 10 , so that the glass 10 can be finally bent and formed.

[0057] The designer may adjust the range of the fourth curvature value according to production needs, and no specific limitation is made here. 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 an embodiment of the present invention, Figure 1 and Figure 2 In the illustrated embodiment, the heating roller 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 at a first curvature, and the first pre-bending roller group includes a plurality of first pre-bending rollers 112 arranged at intervals.

[0059] The glass 10 to be processed can be transported in the heating section 100 by the first conveying roller set, and the glass 10 can be 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 110 is disposed 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 requirements, and no specific limitation is made here.

[0061] Furthermore, the first conveying roller group includes a plurality of first conveying rollers 111 arranged at intervals, and each first conveying roller 111 may be arranged at intervals horizontally, and the first pre-bending roller group includes a plurality of first pre-bending rollers 112 arranged at intervals. In addition, adjacent first conveying rollers 111 and first pre-bending rollers 112 may be tangentially transitioned, thereby helping to improve the smoothness of conveying the glass 10.

[0062] The designer may adjust the number of the first conveying rollers 111 and the first pre-bending rollers 112 according to the use requirements, and no specific limitation is made here.

[0063] In an embodiment of the present invention, a cooling section 400 is further included. The cooling section 400 includes a cooling roller. The cooling roller is arranged downstream of the forming roller 310 along the glass conveying path. The cooling roller includes a plurality of second conveying rollers 410 arranged at intervals.

[0064] The glass 10 that has been finally bent and formed can be outputted through the cooling roller, and in the process of conveying the glass 10 , the glass 10 can be further cooled on the cooling roller, thereby improving the cooling effect of the glass 10 .

[0065] Specifically, the second conveying rollers 410 are arranged at intervals in the horizontal direction. Moreover, the designer can adjust the number and height of each second conveying roller 410 according to the specific structure of the pre-bending section 200 and the forming section 300, and no specific limitation is made here. Among them, the second conveying rollers 410 and the first conveying rollers 111 are arranged at different horizontal heights.

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

[0067] In a specific embodiment, along the conveying direction of the glass 10 , the arrangement heights of the second pre-bending rollers 211 gradually increase, so that the second pre-bending rollers 211 can be arranged in an arc shape.

[0068] By arranging the plurality of second pre-bending rollers 211 in an arc shape, the arcs 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 main curvature direction and the bending amplitude in the secondary curvature direction, it is helpful to form a multi-dimensional composite curved surface on the glass 10, which significantly improves the flexibility of the curved surface modeling of the glass 10, thereby better meeting the needs of different usage scenarios.

[0070] The designer can adjust the number and arc arrangement of the second pre-bending rollers 211 according to usage requirements, and no specific limitation is imposed herein.

[0071] In an embodiment of the present invention, Figure 1 and Figure 4 In the illustrated embodiment, the forming roller 310 includes a bending roller group, the bending depth of the bending roller group is set at a third curvature, and the bending roller group includes a plurality of bending rollers 311 , which 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 the second pre-bending rollers 211 can be tangentially transitioned, thereby ensuring the smoothness of the glass 10 during the conveying process and helping to improve the forming quality of the glass 10.

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

[0074] The multiple bending rollers 311 can form a main curvature direction, and both sides of the glass 10 can bend inward in the main curvature direction. By controlling the curvature amplitude in the main curvature direction and the curvature amplitude in the secondary curvature direction, it is helpful to make the glass 10 finally form a multi-dimensional composite curved surface.

[0075] Designers can adjust the number and arc arrangement of the bending rollers 311 according to usage requirements, and no specific restrictions are imposed herein.

[0076] In an embodiment of the present invention, the movement speeds of the first pre-bending roller 112, the second pre-bending roller 211 and the bending roller 311 are consistent. Alternatively, the movement speed of the first pre-bending roller 112 is less than the movement speed of the second pre-bending roller 211, and the movement speed of the second pre-bending roller 211 is less than the movement speed of the bending roller 311.

[0077] In an embodiment of the present invention, the auxiliary heating mechanism 500 includes an auxiliary heating device 510, which is arranged on one side or both sides of the pre-bending roller 210 along the conveying direction of the pre-bending roller 210. Here, one side or both sides of the pre-bending roller 210 refer to the upper and lower sides of the pre-bending roller 210.

[0078] By arranging the auxiliary heating device 510 on one or both sides of the pre-bending roller 210, the auxiliary heating device 510 helps to maintain the temperature of the glass 10 and prevent the glass 10 from cooling too quickly and affecting the subsequent bending effect. The heating temperature range of the auxiliary heating device 510 is 500℃-700℃.

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

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

[0081] By staggering the auxiliary heating devices 510 between adjacent pre-bending rollers 210, interference of the pre-bending rollers 210 with the auxiliary heating devices 510 is avoided, thereby improving the heating effect of the auxiliary heating devices 510. In addition, by correspondingly arranging the auxiliary heating devices 510 located on the upper side of the pre-bending rollers 210 and the auxiliary heating devices 510 located on the lower side of the pre-bending rollers 210, the upper and lower surfaces of the glass 10 can be uniformly heated by using the auxiliary heating devices 510 located on the upper and lower sides of the pre-bending rollers 210.

[0082] Furthermore, the auxiliary heating device 510 includes a plurality of air outlet pipes and hot air units corresponding to the air outlet pipes, and the air outlet pipes are provided with a plurality of air outlet holes arranged at intervals, and the air outlet holes are arranged toward the conveying path of the glass 10 and are arranged at a first distance from the conveying path of the glass 10. The hot air can be conveyed to the glass 10 through the air outlet pipes to heat the glass 10, thereby achieving a convection heating effect.

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

[0084] Furthermore, in order to improve the uniformity of the air outlet to the glass 10 , the air outlet pipe and the second pre-bending roller 211 are arranged in a conformal manner, and the air outlet pipe and the second pre-bending roller 211 have corresponding bending depths, so that each air outlet can blow hot air uniformly onto the glass 10 .

[0085] The designer can adjust the number, size and arrangement of the air outlets according to the use requirements, and no specific limitation is imposed here. For example, in a feasible embodiment, the diameter of the air outlets is 0.5 mm to 5 mm, the interval between adjacent air outlets is 25 mm to 60 mm, and the first distance between the air outlets and the conveying path of the glass 10 is 30 mm to 120 mm.

[0086] In another feasible embodiment, the auxiliary heating device 510 includes a plurality of heating tubes, each of which is arranged at intervals along the conveying path of the glass 10 and is arranged at a first distance from the conveying path of the glass 10. The heating tubes can generate heat, thereby achieving a radiation heating effect.

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

[0088] Furthermore, in order to improve the uniformity of heat radiation of the heating tube to the glass 10, the heating tube and the second pre-bending roller 211 are arranged in a conformal manner, and the heating tube and the second pre-bending roller 211 have corresponding bending depths, so that the heating tube can uniformly heat the glass 10 on the glass conveying path.

[0089] Of course, designers can adjust the specific structure of the auxiliary heating device 510 according to usage requirements, and no specific restrictions are made here.

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

[0091] By arranging the cooling nozzles on one side or both sides of the forming roller 310 , the glass 10 can be quickly cooled and tempered by the cooling nozzles, thereby achieving better cooling efficiency.

[0092] Specifically, Figure 5 In the embodiment shown, the cooling nozzle includes an air knife 610, and each air knife 610 is arranged on the upper and lower sides of the forming roller 310 along the conveying direction of the forming roller 310. The air knives 610 located on one side are first air knives 610, and the first air knives 610 are staggered between adjacent bending rollers 311. The air knives 610 located on the other side are second wind knives 610, and the second wind knives 610 are arranged one-to-one with the first wind knives 610.

[0093] The wind knife 610 can eject a high-speed low-temperature airflow, and the high-speed low-temperature airflow can be used to quickly cool the glass 10, thereby achieving better cooling efficiency.

[0094] Furthermore, by staggering the wind knives 610 between adjacent bending rollers 311, interference of the bending rollers 311 on the wind knives 610 is avoided, thereby improving the cooling effect of the wind knives 610. Furthermore, by correspondingly arranging the first wind knife 610 and the second wind knife 610, the first wind knife 610 and the second wind knife 610 can evenly spray high-speed low-temperature airflow onto the upper and lower surfaces of the glass 10, thereby improving the cooling uniformity.

[0095] In the prior art, when multiple cooling nozzles are provided, there is generally a discontinuous space between adjacent cooling nozzles. When the edge of the glass 10 is located between two cooling nozzles during the conveying process, the temperature drop rate of the edge of the glass 10 is different from that of other parts of the glass 10, which makes the edge of the glass 10 wavy or other non-uniform transition shapes, thereby reducing the transition smoothness of the glass 10.

[0096] The wind knife 610 in the present invention has a knife-shaped air outlet, so that the air outlet of the wind knife 610 is continuously arranged, which is beneficial to improving the transition smoothness of the glass 10.

[0097] During the use of the wind knife 610, by controlling the length of the outlet of the wind knife 610, the high-speed low-temperature airflow ejected by the wind knife 610 can be fully delivered to the glass 10 to be cooled, with better cooling efficiency, thereby improving the tempering effect of the glass 10.

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

[0099] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for various purposes. The term "consisting essentially of ... " describing a combination should include determined 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 here also contemplates the implementation method consisting essentially of these elements, ingredients, parts or steps. Here, by using the term "may", it is intended to illustrate that any attribute described that "may" includes 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 "one" used to describe an element, ingredient, part or step is not said 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 and 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. The purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and it 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 covered within the scope of protection of the present invention.

Claims

1. A glass forming system, characterized in that: It includes the following components arranged in sequence along the glass conveying path: A heating section, the heating section comprising a heating roller and a heating mechanism arranged at the periphery of the heating roller, the bending depth of the heating roller being arranged at a first curvature; A pre-bending section, the pre-bending section comprising a pre-bending roller and an auxiliary heating mechanism arranged on the periphery of the pre-bending roller, the bending depth of the pre-bending roller is set at a second curvature, and the change of the second curvature is not less than the change of the first curvature; The forming section includes a forming roller and a cooling mechanism arranged on the periphery of the forming roller. The bending depth of the forming roller is set at a third curvature, and the change of the third curvature is not less than the change of the second curvature.

2. The glass forming system according to claim 1, wherein: Along the direction of the glass conveying path, the change rule of the first curvature is: changing from a horizontal initial state to a first curvature value, and then gradually changing 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 smaller than the unit bending change between the horizontal initial state and the first curvature value.

3. The glass forming system according to claim 2, wherein: The bending change amount of the second curvature is greater than the bending change amount of the first curvature, and the changing rule of the second curvature is: gradually increasing from the second curvature value to a third curvature value.

4. The glass forming system according to claim 3, wherein: The change rule of the third curvature is: gradually increasing from the third curvature value to a fourth curvature value, the fourth curvature value is set as the target curvature value of the glass, and the bending change amount of the third curvature is greater than the bending change amount of the second curvature.

5. The glass forming system according to claim 1, wherein: The heating roller 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 is set at the first curvature, the first conveying roller group comprises at least one first conveying roller, and the first pre-bending roller group comprises a plurality of first pre-bending rollers arranged at intervals.

6. The glass forming system according to claim 5, wherein: It also includes a cooling section, which includes a cooling roller. Along the direction of the glass conveying path, the cooling roller is arranged downstream of the forming roller, and the cooling roller includes a plurality of second conveying rollers arranged at intervals.

7. The glass forming system according to claim 1, wherein: The pre-bending roller comprises a second pre-bending roller group, the bending depth of the second pre-bending roller group is set at the second curvature, the second pre-bending roller group comprises a plurality of second pre-bending rollers, and along the conveying direction of the glass, the plurality of second pre-bending rollers are arranged in an arc shape at intervals.

8. The glass forming system according to claim 1, wherein: The forming roller comprises a bending roller group, the bending depth of the bending roller group is set at a third curvature, the bending roller group comprises a plurality of bending rollers, and the plurality of bending rollers are arranged in an arc shape at intervals along the conveying direction of the glass.

9. The glass forming system according to claim 1, wherein: The auxiliary heating mechanism comprises an auxiliary heating device, and the auxiliary heating device is arranged on one side or both sides of the pre-bending roller along the conveying direction of the pre-bending roller.

10. The glass forming system according to claim 9, wherein: The auxiliary heating device comprises a plurality of air outlet pipes and a hot air unit correspondingly connected to each of the air outlet pipes, wherein the air outlet pipes are provided with a plurality of air outlet holes arranged at intervals, and the air outlet holes are arranged toward the conveying path of the glass and are arranged at a first distance from the conveying path of the glass; or The auxiliary heating device includes a plurality of heating tubes, each of which is arranged at intervals along the glass conveying path and is arranged at a first distance from the glass conveying path.

11. The glass forming system according to claim 9, 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 along the conveying direction of the forming roller.

12. The glass forming system according to claim 11, wherein: The cooling nozzle comprises an air knife, and each of the air knives is respectively arranged on both sides of the forming roller along the conveying direction of the forming roller.

Images