Formed glass pane, glass pane forming method, glass pane forming device and vehicle

Abstract

The present application provides a formed glass pane, a glass pane forming method, a glass pane forming device and a vehicle. The formed glass pane has a first curvature in a first direction and a second curvature in a second direction, the first direction and the second direction being perpendicular to each other. The formed glass pane comprises first supporting positions located at edge bends and second supporting positions located between every two adjacent edge bends, the forming of the second supporting positions starting earlier than that of the first supporting positions. The arc depth d per meter of the formed glass pane in the first direction meets: 30 mm / m≤d≤80 mm / m; and the arc depth D per meter of the formed glass pane in the second direction meets: 25 mm / m≤D≤60 mm / m. Thus, formed glass with a relatively small bending tendency opposite an arc depth direction is formed, and same can be used as front windshield glass, rear windshield glass, sunroof glass, side window glass, etc., of a vehicle.

Description

Shaped glass sheet, glass sheet forming method, glass sheet forming device and vehicle

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on December 21, 2023, with application number 202311774212.0 and application name “Formed glass sheet, glass sheet forming method, glass sheet forming device and vehicle”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of vehicle parts preparation, and in particular to a glass plate forming method, a glass plate forming device, a formed glass plate, and a vehicle. Background Art

[0003] Vehicles have always been one of the most important means of transportation in human society. As people's requirements for vehicle functionality become increasingly higher, the area occupied by glass on vehicles is also increasing, the glass design is becoming more and more complex, and the requirements for the optical refraction of glass are becoming more and more stringent.

[0004] In order to achieve a curved glass design, the glass preparation process usually includes heating, pressing and other processes. Therefore, during the forming process, the glass is prone to bending in the opposite direction of the arc depth at the edges and other parts, resulting in optical distortion at the edges of the formed glass plate. Moreover, as the curvature of the glass increases, the deformation problem becomes more serious. Summary of the Invention

[0005] The present application discloses a shaped glass plate, which can avoid the bending tendency of the glass in the opposite direction of the arc depth during the preparation process and solve the technical problem of poor optical refractive performance.

[0006] In a first aspect, the present application provides a shaped glass sheet, wherein the shaped glass sheet has a first curvature in a first direction, and the shaped glass sheet has a second curvature in a second direction, wherein the first direction and the second direction are perpendicular to each other;

[0007] The shaped glass sheet includes a first support position located at an edge bend and a second support position located between two adjacent edge bends, wherein the second support position starts shaping before the first support position;

[0008] The arc depth d per meter of the shaped glass sheet along the first direction is 30 mm / m≤d≤80 mm / m;

[0009] The arc depth D per meter of the shaped glass plate along the second direction is 25 mm / m≤D≤60 mm / m.

[0010] Optionally, a first smoothness of the shaped glass sheet along the first direction is less than or equal to 30°, and a second smoothness of the shaped glass sheet along the second direction is less than or equal to 30°.

[0011] Optionally, when the arc depth per meter of the shaped glass sheet along the second direction is 25 mm / m≤D<40 mm / m, the arc depth per meter d of the shaped glass sheet along the first direction and the arc depth per meter D of the shaped glass sheet along the second direction satisfy 0.3≤D / d≤1.4;

[0012] Alternatively, when the arc depth per meter of the shaped glass sheet along the second direction is 40 mm / m≤D≤60 mm / m, the arc depth per meter d of the shaped glass sheet along the first direction and the arc depth per meter D of the shaped glass sheet along the second direction satisfy 0.5≤D / d≤2.

[0013] Optionally, the length of the shaped glass sheet in the first direction is greater than the length in the second direction.

[0014] Optionally, the second curvature is greater than the first curvature.

[0015] In a second aspect, the present application provides a glass sheet forming method, the glass sheet forming method comprising:

[0016] Providing a glass sheet and heating the glass sheet to a forming temperature, wherein the glass sheet includes a first support position located at an edge bend and a second support position located between two adjacent edge bends;

[0017] placing the glass sheet heated to a forming temperature between an upper forming mold and a lower forming mold;

[0018] The lower forming mold first supports the second supporting position and cooperates with the upper forming mold to press the second supporting position. After a preset time, the lower forming mold then supports the first supporting position and cooperates with the upper forming mold to press the first supporting position and the second supporting position together.

[0019] A shaped glass sheet is obtained.

[0020] Optionally, the preset time is 0.1s to 0.6s.

[0021] Optionally, the total time for the upper and lower molding dies to press the glass plate is 1s to 6s.

[0022] In the third aspect, the present application also provides a glass plate forming device, which includes an upper forming mold and a lower forming mold, the upper forming mold and the lower forming mold are arranged relative to each other, the lower forming mold at least supports the edge of the glass plate, and the lower forming mold includes a first supporting structure for supporting the edge bending of the glass plate, and a second supporting structure for supporting the glass plate between two adjacent edge bendings, and the first supporting structure and the second supporting structure can move relative to each other.

[0023] Optionally, the lower molding die further includes a carrier, and the carrier is integrally formed with the first supporting structure or the second supporting structure.

[0024] Optionally, the lower forming mold has a first side, a second side, a third side and a fourth side, one end of the first side is connected to the second side by a bending connection, and the other end is connected to the fourth side by a bending connection, one end of the third side is connected to the second side by a bending connection, and the other end is connected to the fourth side by a bending connection, and the first side and the third side are arranged opposite to each other; the second supporting structure is arranged in the middle of the first side, the second side, the third side and the fourth side, and extends to both sides respectively, and the first supporting structure is arranged on both sides of the first side, the second side, the third side and the fourth side respectively.

[0025] Optionally, the glass sheet forming device further includes a control component, which is respectively connected to the first supporting structure and the second supporting structure, and respectively controls the first supporting structure and the second supporting structure to be pressed with the upper forming mold at different times.

[0026] Optionally, the control component controls the second supporting structure to be pressed together with the upper forming mold, and after a preset time, the control component controls the first supporting structure to be pressed together with the upper forming mold.

[0027] Optionally, the molding device further comprises a processing chamber, the processing chamber comprising a molding section, a heating section, and a transmission section, the upper molding die and the lower molding die are arranged on opposite sides of the molding section, the heating section is located before the molding section, and the transmission section is located after the molding section;

[0028] The glass sheet forming device further comprises:

[0029] a heating element and a transmission element, wherein the heating element and the transmission element are arranged in the heating section, the heating element is used to heat the glass sheet, and the transmission element is used to transmit the glass sheet from the heating section to the forming section; and

[0030] a cooling assembly, the cooling assembly being disposed in the forming section and being used for cooling the formed glass sheet;

[0031] The transmission member is further provided in the transmission section for transmitting the cooled shaped glass sheet.

[0032] In a fourth aspect, the present application further provides a vehicle, comprising a vehicle frame and the shaped glass plate as described in the first aspect, wherein the vehicle frame is used to carry the shaped glass plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0034] FIG1 is a schematic top view of a formed glass plate provided in one embodiment of the present application.

[0035] FIG2 is a schematic diagram of folds formed on a glass plate of a simulation model provided in one embodiment of the present application.

[0036] FIG3 is a schematic flow chart of a glass sheet forming method according to an embodiment of the present application.

[0037] FIG4 is a schematic top view of a glass plate provided in one embodiment of the present application.

[0038] FIG5 is a schematic diagram of a glass sheet forming device framework provided in one embodiment of the present application.

[0039] FIG6 is a schematic top view of a lower molding die provided in one embodiment of the present application.

[0040] FIG7 is a schematic diagram of a glass sheet forming device framework provided in another embodiment of the present application.

[0041] FIG8 is a schematic top view of a vehicle provided in one embodiment of the present application.

[0042] FIG9 is a schematic diagram of a first reflective corrugation line and a second reflective corrugation line projected onto the surface of a shaped glass plate provided in the present application.

[0043] FIG10 is a schematic diagram of a first smoothness acquisition method provided in this application.

[0044] Explanation of the accompanying drawings: first direction-D1, second direction-D2, formed glass plate-1, glass plate forming device-2, processing chamber-21, forming section-211, heating section-212, transmission section-213, upper forming mold-22, lower forming mold-23, carrier-231, first supporting structure-232, second supporting structure-233, first side-234, second side-235, third side-236, fourth side-237, control component-24, heating element-25, transmission element-26, cooling component-27, glass plate-3, first supporting position-31, second supporting position-32, vehicle-4, frame-41. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0046] The present application provides a shaped glass sheet 1. FIG. 1 is a schematic top view of a shaped glass sheet according to one embodiment of the present application. The shaped glass sheet 1 has a first curvature in a first direction D1 and a second curvature in a second direction D2. The first direction D1 and the second direction D2 are perpendicular to each other.

[0047] In certain embodiments, the first and second curvatures form the shaped glass sheet 1 into a substantially spherical surface. In certain specific embodiments, the first direction D1 of the shaped glass sheet 1 may be the longitudinal direction of the glass sheet, i.e., the longitudinal direction; and the second direction D2 may be the width direction of the glass sheet, i.e., the transverse direction. The first curvature is the curvature obtained by measuring two edges of the shaped glass sheet that are parallel or substantially parallel to the first direction D1. If the curvatures of the two edges are different, the curvature with the larger value is used as the first curvature of the first direction D1. The second curvature is the curvature obtained by measuring two edges of the shaped glass sheet that are parallel or substantially parallel to the second direction D2. If the curvatures of the two edges are different, the curvature with the larger value is used as the second curvature of the second direction D2. The first curvature refers to the curvature of the arc at the edge of the shaped glass plate 1 in the first direction D1. In some embodiments, when the arc at the edge of the shaped glass plate 1 in the first direction D1 has multiple curvatures, the first curvature may be the average curvature of the arc. The second curvature refers to the curvature of the arc at the edge of the shaped glass plate 1 in the second direction D2. In some embodiments, when the arc at the edge of the shaped glass plate 1 in the second direction D2 has multiple curvatures, the second curvature may be the average curvature of the arc.

[0048] The shaped glass plate 1 includes a first support position located at an edge bend and a second support position located between two adjacent edge bends, wherein the second support position starts shaping before the first support position;

[0049] In some embodiments, the first smoothness of the shaped glass sheet along the first direction is less than or equal to 30°, in some further embodiments, the first smoothness is less than or equal to 25°, in some preferred embodiments, the first smoothness is less than or equal to 20°, and in some other embodiments, the first smoothness may be less than or equal to 10°, the first smoothness may be less than or equal to 5°, or the first smoothness may be less than or equal to 3°.

[0050] As shown in Figures 9 and 10, the first smoothness is: projecting a number of first reflection corrugation lines extending roughly along the first direction on the surface of the formed glass plate, wherein, as shown in Figure 10, take any point Xi on the first reflection corrugation line, take the two adjacent points Xi-1 and Xi+1 before and after the same first reflection corrugation line, calculate the value of the angle α between the line segment XiXi-1 and the line segment XiXi+1, and take the complementary angle of the angle α as the first smoothness of the point Xi.

[0051] As shown in Figure 9, due to the curvature of the molded glass surface, the first reflective ripple lines observed on the molded glass surface appear curved. Ideally, when the first reflective ripple lines are separated by a small span, the angle α formed between adjacent segments should approach 180°. In other words, the complementary angle of the angle α should approach 0. In practice, due to the influence of the curvature of the molded glass sheet itself and the lengths of the selected line segments XiXi-1 and XiXi+1, it is reasonable for the first smoothness of the molded glass sheet (i.e., the complementary angle of the angle α) to be less than 20°. The lengths of the line segments XiXi-1 and XiXi+1 are related to the size of the grid formed by the first and second reflective ripple lines. Generally, the lengths of the line segments XiXi-1 and XiXi+1 are between 1 and 15 mm. In this application, the lengths of the line segments XiXi-1 and XiXi+1 can be 1, 2, 4, 5, 7, 8, 10, 12, or 15 mm.

[0052] However, in certain embodiments, the shaped glass sheet may be affected by the forming process, resulting in localized unevenness in certain areas (particularly at the edges of the shaped glass sheet). This can reduce the angle α between adjacent segments of the first reflective corrugation line in these areas, while increasing the supplementary angle of angle α. This increase in supplementary angle is difficult to observe with the naked eye due to the inherent transparency of the glass. However, repeated verification has revealed that when the first smoothness of the first reflective corrugation line at any point Xi (i.e., the supplementary angle of angle α) is greater than 30°, the surface of the shaped glass sheet exhibits poor refraction, i.e., light reflected from the surface of the shaped glass sheet experiences significant distortion. Therefore, a first smoothness of the shaped glass sheet along the first direction of less than or equal to 30° can provide the shaped glass sheet with relatively good refractive index performance in the first direction.

[0053] In some embodiments, the second smoothness of the shaped glass sheet along the second direction is less than or equal to 30°, in some further embodiments, the second smoothness is less than or equal to 25°, in some preferred embodiments, the second smoothness is less than or equal to 20°, and in some other embodiments, the second smoothness may be less than or equal to 10°, the second smoothness may be less than or equal to 5°, or the second smoothness may be less than or equal to 3°.

[0054] As shown in Figure 9, the second smoothness is: projecting a number of second reflective corrugated lines extending roughly along the second direction on the surface of the formed glass plate, wherein, taking any point Yi on the second reflective corrugated line, taking the two adjacent points Yi-1 and Yi+1 before and after the same second reflective corrugated line, calculating the angle β between the line segment YiYi-1 and the line segment YiYi+1, and taking the supplementary angle of the angle β as the second smoothness of the point Yi.

[0055] As shown in Figure 9, due to the curvature of the molded glass surface, the second reflected moire lines observed on the molded glass surface appear curved. Ideally, when the second reflected moire lines are separated by a small span, the angle β formed between adjacent line segments should approach 180°. In other words, the complementary angle of angle β should approach 0. In practice, due to the influence of the curvature of the molded glass sheet itself and the lengths of the selected line segments YiYi-1 and YiYi+1, the second smoothness of the molded glass sheet (i.e., the complementary angle of angle β) is reasonably below 20°. Among them, the length values ​​of line segment YiYi-1 and line segment YiYi+1 are related to the grid size formed by the first reflective corrugation line and the second reflective corrugation line. Generally, the length values ​​of line segment YiYi-1 and line segment YiYi+1 are between 1-15mm. In this application, the length values ​​of line segment YiYi-1 and line segment YiYi+1 can be 1, 2, 4, 5, 7, 8, 10, 12, 15mm.

[0056] However, in certain embodiments, the shaped glass sheet may be affected by the forming process, resulting in localized unevenness in certain areas (particularly at the edges of the shaped glass sheet). This can reduce the angle β between adjacent segments of the second reflective corrugation line in these areas, increasing the supplementary angle of angle β. This increase in supplementary angle is difficult to observe with the naked eye due to the inherent transparency of the glass. However, repeated verification has revealed that when the second smoothness of the second reflective corrugation line at any point Yi (i.e., the supplementary angle of angle β) is greater than 30°, the surface of the shaped glass sheet exhibits poor refraction, i.e., light reflected from the surface of the shaped glass sheet experiences significant distortion. Therefore, a second smoothness of the shaped glass sheet along the second direction of less than or equal to 30° can provide the shaped glass sheet with relatively good refractive index performance in the second direction.

[0057] Among them, the distance between the projection background forming the first reflection corrugation line and the second reflection corrugation line and the center point of the formed glass plate can be selected as 1400mm, the spacing between adjacent first reflection corrugation lines in the projection background can be selected as 30mm, and the spacing between adjacent second reflection corrugation lines can be selected as 30mm.

[0058] In addition, by constructing a simulation model of the formed glass plate, the impact of increasing the first smoothness or the second smoothness can be more intuitively represented. For example, the formed wrinkles in the first direction D1 or the second direction D2 of the simulation model can represent the bending trend opposite to the arc depth direction that occurs during the forming process.

[0059] Among them, during the forming process of the glass plate, it is affected by the first curvature and the second curvature. If the first support position and the second support position start forming simultaneously, in the local area of the glass plate edge, it will be subjected to inward extrusion and there will be a bending trend opposite to the arc depth direction during the forming process. In the simulation model, this bending trend during the forming process can be manifested in the form of local forming folds, as shown in Figure 2. The dotted line part represents the edge shape of the glass plate edge without forming folds, and the solid line part is the shape of the glass plate edge with forming folds in the simulation model. h represents the height of the forming fold at this position. Forming folds will appear in both the forming fold in the first direction D1 and the second direction D2.

[0060] In the actual formed glass plate, since the glass plate will be pressed by the upper and lower molds during forming, this local bending situation cannot be directly observed. However, there will be a certain optical distortion phenomenon at the edge of the formed glass plate. In theory, the greater the local bending trend, the more serious the optical distortion situation at the edge of the formed glass plate. Generally speaking, when the height of the forming fold obtained by simulation in the simulation model is greater than 8 mm, the optical distortion phenomenon at the edge of the actual formed glass plate cannot be accepted.

[0061] In this application, the second support position starts forming before the first support position. During the bending process of the second support position, the bending trend will tend to transition towards the vicinity of the first support position. And because the first support position is the bending position of the formed glass plate, the bending trend will decrease or become smaller. In the simulation model, it is manifested as the decrease of the height h of the forming fold. For the actual formed glass plate, it means that the optical distortion degree at the edge position decreases or even disappears.

[0062] The arc depth d per meter of the formed glass plate in the first direction is 30 mm / m ≤ d ≤ 80 mm / m; among them, in some specific embodiments, the arc depth d per meter of the formed glass plate in the first direction refers to the arc depth per meter obtained by measuring the two side edges of the formed glass plate that are parallel or approximately parallel to the first direction D1. If the arc depths per meter of the two side edges are different, the larger arc depth value per meter is used as the arc depth d in the first direction. Among them, in some further embodiments, the arc depth d per meter of the formed glass plate in the first direction can be divided according to its arc depth range. For example, when the arc depth d per meter of the formed glass plate in the first direction ranges from 30 ≤ d ≤ 55, in the first direction, the height h of the forming fold in the simulation model ≤ 2; when the arc depth d per meter of the formed glass plate in the first direction ranges from 55 < d ≤ 60, in the first direction, the height h of the forming fold in the simulation model ≤ 3; when the arc depth d per meter of the formed glass plate in the first direction ranges from 60 < d ≤ 80, in the first direction, the height h of the forming fold in the simulation model ≤ 5.

[0063] The arc depth D per meter of the formed glass plate in the second direction is 25 mm / m ≤ D ≤ 60 mm / m; wherein, in some specific embodiments, the arc depth D per meter of the formed glass plate in the second direction refers to the arc depth per meter obtained by measuring the two side edges of the formed glass plate that are parallel or substantially parallel to the second direction D2. If the arc per meter of the two side edges is different, the one with the larger arc depth value per meter is taken as the arc depth D per meter in the second direction. Among them, in some further embodiments, the arc depth D per meter of the formed glass plate in the second direction can be divided according to its arc depth range. For example, when the arc depth D per meter of the formed glass plate in the second direction ranges from 25 ≤ D ≤ 30, in the second direction, the forming fold height H of the simulation model ≤ 2; when the arc depth D per meter of the formed glass plate in the second direction ranges from 30 < D ≤ 40, in the second direction, the forming fold height H of the simulation model ≤ 3; when the arc depth D per meter of the formed glass plate in the second direction ranges from 40 < D ≤ 60, in the second direction, the forming fold height H of the simulation model ≤ 5.

[0064] In some embodiments, when the arc depth per meter of the formed glass plate in the second direction is 25 mm / m ≤ D < 40 mm / m, the arc depth d per meter of the formed glass plate in the first direction and the arc depth D per meter of the formed glass plate in the second direction satisfy 0.3 ≤ D / d ≤ 1.4;

[0065] Alternatively, when the arc depth per meter of the formed glass plate in the second direction is 40 mm / m ≤ D ≤ 60 mm / m, the arc depth d per meter of the formed glass plate in the first direction and the arc depth D per meter of the formed glass plate in the second direction satisfy 0.5 ≤ D / d ≤ 2.

[0066] Among them, when the arc depth per meter of the formed glass plate in the second direction is 25 mm / m ≤ D < 40 mm / m, in some embodiments, the second curvature is greater than the first curvature. Therefore, at the position where the second curvature is located, there is already a high possibility of optical distortion at the edge position of the formed glass plate. In order to avoid excessive optical distortion in the first direction of the formed glass plate resulting in an unacceptable overall optical situation of the formed glass plate, the ratio of the arc depth d per meter in the first direction and the arc depth D per meter in the second direction satisfying 0.3 ≤ D / d ≤ 1.4 is a better choice. And when the arc depth per meter of the formed glass plate in the second direction is 40 mm / m ≤ D ≤ 60 mm / m, in some embodiments, the second curvature is greater than the first curvature. Therefore, at the position where the second curvature is located, there is already a high possibility of optical distortion at the edge position of the formed glass plate. In order to avoid excessive optical distortion in the first direction of the formed glass plate resulting in an unacceptable overall optical situation of the formed glass plate, the ratio of the arc depth d per meter in the first direction and the arc depth D per meter in the second direction satisfying 0.5 ≤ D / d ≤ 2 is a better choice.

[0067] In some embodiments, the length of the shaped glass sheet in the first direction D1 is greater than the length in the second direction D2. In some specific embodiments, the length of the shaped glass sheet in the first direction D1 can specifically refer to the maximum length of the shaped glass sheet in the first direction D1, or can also refer to the chord length corresponding to the arc line of the side edge per meter of arc depth d in the first direction. The length in the first direction D1 can specifically be 400mm to 2000mm. In some specific embodiments, the length in the first direction D1 can be 400mm, 500mm, 600mm, 700mm, 800mm, 900mm, 1000mm, 1300mm, 1500mm, 1800mm, 2000mm, etc. The length range in the first direction D1 can also fall within the range formed by any two of the above length values.

[0068] The length of the shaped glass sheet in the second direction D2 may specifically refer to the maximum length of the shaped glass sheet in the second direction D2, or may also refer to the length of the chord corresponding to the arc line of one side edge per meter of arc depth D in the second direction. Specifically, the length in the second direction D2 may be 400 mm to 1400 mm. In certain specific embodiments, the length in the second direction D2 may be 400 mm, 500 mm, 600 mm, 700 mm, 800 mm, 900 mm, 1000 mm, 1100 mm, 1200 mm, 1300 mm, 1400 mm, etc. The length in the second direction D2 may also fall within the range formed by any two of the above length values.

[0069] In some embodiments, the second curvature is greater than the first curvature. The second curvature may be in the range of 400 / m to 3000 / m. In some specific embodiments, the second curvature may be 400 / m, 500 / m, 600 / m, 700 / m, 800 / m, 900 / m, 1000 / m, 1300 / m, 1500 / m, 1800 / m, 2000 / m, 2200 / m, 2400 / m, 2600 / m, 2800 / m, or 3000 / m. In addition, the second curvature may also fall within the range formed by any two of the above curvature values. The first curvature may be within the range of 400 / m to 3000 / m. In some specific embodiments, the first curvature may be 400 / m, 500 / m, 600 / m, 700 / m, 800 / m, 900 / m, 1000 / m, 1300 / m, 1500 / m, 1800 / m, 2000 / m, 2200 / m, 2400 / m, 2600 / m, 2800 / m, or 3000 / m. In addition, the first curvature may also fall within the range formed by any two of the above curvature values.

[0070] This application also provides a glass sheet forming method. Please refer to Figure 3, which is a schematic flow chart of the glass sheet forming method according to one embodiment of this application. The glass sheet forming method includes steps S301, S302, S303, and S304. Steps S301, S302, S303, and S304 are described in detail below.

[0071] S301, providing a glass sheet and heating the glass sheet to a forming temperature, wherein the glass sheet includes a first support position located at an edge bend and a second support position located between two adjacent edge bends;

[0072] S302, placing the glass sheet heated to a forming temperature between an upper forming mold and a lower forming mold;

[0073] S303, the lower molding die first supports the second supporting position and cooperates with the upper molding die to press the second supporting position, and after a preset time, the lower molding die then supports the first supporting position and cooperates with the upper molding die to press the first supporting position and the second supporting position together;

[0074] S304, obtaining a formed glass plate.

[0075] Specifically, please refer to Figure 4, which is a schematic top view of a glass sheet provided in accordance with one embodiment of the present application. Typically, the glass sheet 3 has a roughly rectangular outline and has four edge bends, namely, the first support location 31 and the second support location 32. It should be noted that to impart a certain curvature to the shaped glass sheet 1 for adaptability to different applications, the unshaped glass sheet 3 must first be heated to enhance its plasticity. The glass sheet 3 is then pressed to alter its shape, forming the shaped glass sheet 1. It is understood that the desired shape of the glass sheet 3 may vary depending on the application. For example, glass used in vehicles primarily includes windshields, rear windshields, sunroofs, and side windows. Windshields are typically heat-strengthened glass, which is thin, weak, and has low surface stress. In contrast, rear windshields, side windows, and sunroofs are often tempered glass, which is thick, strong, and has high surface stress.

[0076] It should be noted that the present application uses the glass plate forming method to prepare the shaped glass plate 1 through a glass plate forming device 2. The present application provides a glass plate forming device 2. Please refer to Figure 5, which is a schematic diagram of the frame of the glass plate forming device provided in one embodiment of the present application. The glass plate forming device 2 includes an upper forming mold 22 and a lower forming mold 23. The upper forming mold 22 and the lower forming mold 13 are arranged relative to each other. The lower forming mold 23 at least supports the edge of the glass plate 3. The lower forming mold 23 includes a first supporting structure 232 that supports the edge bend of the glass plate 3, and a second supporting structure 233 that supports the glass plate 3 between two adjacent edge bends. The first supporting structure 232 and the second supporting structure 233 are relatively movable.

[0077] It should be noted that the relative movement of the first support structure 232 and the second support structure 233 means that the first support structure 232 and the second support structure 233 are not integrally formed, so that the movement of the first support structure 232 and the second support structure 233 is not coordinated, thereby enabling the first support structure 232 and the second support structure 233 to be pressed against the upper forming mold 22 at different times. In this embodiment, the first support structure 232 and the upper forming mold 22 are pressed against the first support position 31 of the glass sheet 3, and the second support structure 233 and the upper forming mold 22 are pressed against the second support position 32 of the glass sheet 3.

[0078] During the lamination process of the glass sheets 3, the height of the formed wrinkles may vary due to the different curvatures of the formed glass sheets 3. Referring again to Figure 4 , the formed glass sheets 3 are required to have a longitudinal arc depth along a first direction D1 and a transverse arc depth along a second direction D2. The first direction D1 may be, but is not limited to, the same as the vehicle's direction of travel, and the second direction D2 may be, but is not limited to, perpendicular to the first direction D1. It should be noted that in this embodiment, the formed glass sheets 1 are transported within the glass sheet forming apparatus 2 along the second direction D2.

[0079] During the pressing process of the glass plate 3, since the middle part of the lower forming mold 23 contacts the upper forming mold 22 first during the pressing process of the glass plate 3, when the arc depth of the surface of the side of the glass plate 3 adjacent to the upper forming mold 22 is larger, the four peripheral corners of the glass plate 3 are higher. After the lower forming mold 23 and the upper forming mold 22 are pressed together, the four peripheral corners of the glass plate 3 contact the upper forming mold 22 first compared with the middle part, and the bending trend opposite to the arc depth direction generated between the two parts finally causes the refracted light to be distorted in the formed glass plate 1 after the upper forming mold 22 and the lower forming mold 23 are pressed together.

[0080] By constructing a simulation model in a computer device, the aforementioned bending trend opposite to the arc depth can be reflected as wrinkles on the edge of the glass sheet in the simulation model. Using a glass sheet forming device known in the related art, when simultaneously forming the glass sheet at both the first and second support positions, the simulation data shown in Table 1 below was obtained. When the arc depth per meter of the simulated glass sheet 1 exceeds 25 mm / m in the horizontal direction and 50 mm / m in the vertical direction, wrinkles exceeding 8 mm are generated. This translates to poor edge smoothness and unacceptable light distortion in the actual formed glass sheet. Therefore, when the glass sheet forming device known in the related art is used to process and manufacture sunroof glass for vehicle applications, the arc depth per meter in the horizontal direction often exceeds 35 mm / m, and the arc depth per meter in the vertical direction often exceeds 50 mm / m. Consequently, the optical refractive performance of the resulting formed glass sheet 1 is difficult to meet the requirements.

[0081] Table 1 Simulation data of formed glass sheets obtained by simulation model using related technology

[0082] It can also be seen from the experimental data in Table 1 above that when the transverse arc depth per meter and the longitudinal arc depth per meter of the formed glass plate simulation model are relatively large, the transverse formed fold height and the longitudinal fold height of the simulation model are also large.

[0083] Specifically, in one possible embodiment, referring again to FIG. 5 , the glass sheet forming apparatus 2 further includes a control assembly 24, the control assembly 24 being connected to the first support structure 232 and the second support structure 233, respectively, and controlling the first support structure 232 and the second support structure 233 to press-fit with the upper forming mold 22 at different times. The control assembly 24 may include a control unit and a plurality of cylinders, the plurality of cylinders being connected to the second support structure 233 and the first support structure 232, respectively. Under the control of the control unit, the plurality of cylinders are activated at different times to press-fit the second support structure 233 and the first support structure 232 with the upper forming mold 22 at different times. This allows the curvature of the glass sheet 1 formed during the forming process, which is opposite to the arc depth direction, to be relaxed from the second support position toward the first support position, thereby reducing or eliminating the original curvature, thereby improving the optical performance of the glass sheet 1 and enabling a wider range of possible designs for the glass sheet 1.

[0084] It can be understood that in this embodiment, the control component 24 controls the second support structure 233 and the first support structure 232 to be pressed against the upper forming mold 22 at different times, so that the bending trend of the glass plate 3 generated in the forming process that is opposite to the arc depth direction can be extended within the time difference between the pressing of the second support structure 233 and the first support structure 232 and the upper forming mold 22, thereby improving the optical refractive performance of the formed glass plate 1.

[0085] It is understandable that in other possible embodiments, the control component 24 may not be used to separately control the second support structure 233 and the first support structure 232 to be pressed together with the upper molding die 22 at different times. For example, manual operation may be used to separately control the second support structure 233 and the first support structure 232 to be pressed together with the upper molding die 22 at different times. This application does not impose any restrictions on this.

[0086] In this embodiment, the preset time range may be 0.1s-0.6s. It should be noted that, in order to ensure production efficiency, the total time for pressing the upper forming mold 22 and the lower forming mold 23, that is, the pressing time of the glass plate 3, should not be too long. Typically, the total time for pressing the glass plate by the upper forming mold 22 and the lower forming mold 23 is 1s-6s, and this application does not impose any limitation on this. For example, when the control component 24 controls the pressing time of the lower forming mold 23 and the upper forming mold 22 to be 5s, the control component 24 controls the pressing time of the lower forming mold 23 and the upper forming mold 22 to be longer. In order to ensure that the bending trend of the glass plate 3 generated in the pressing process that is opposite to the arc depth direction transitions and extends to the peripheral corner of the glass plate 3, the preset time is shorter, and the preset time range can be 0.2s-0.3s; when the control component 24 controls the pressing time of the lower forming mold 23 and the upper forming mold 22 to be 1s, the control component 24 controls the pressing time of the lower forming mold 23 and the upper forming mold 22 to be shorter, and the preset time range can be 0.3s-0.5s.

[0087] It is understandable that in other possible embodiments, the preset time can also be of other sizes, as long as it does not affect the control component 24 controlling the pressing of the second support structure 233 and the upper molding mold 22, and after the preset time, the control component 24 controls the first support structure 232 and the upper molding mold 22 to be pressed together. This application does not impose any restrictions on this.

[0088] In a possible embodiment, the arc depth per meter of the shaped glass plate 1 in the transverse direction is less than or equal to 60 mm / m, and the arc depth per meter of the shaped glass plate 1 in the longitudinal direction is less than or equal to 80 mm / m.

[0089] By constructing a simulation model in a computer device, the aforementioned bending trend opposite to the arc depth direction can be reflected as wrinkles on the edge of the glass sheet in the simulation model. When the glass sheet forming device 2 provided in this application is used to process the glass sheet 3, so that the second support position of the glass sheet begins forming before the first support position, the relevant simulation data shown in Table 2 below are obtained. Specifically, when the transverse arc depth per meter of the formed glass sheet 1 of the simulation model is less than or equal to 40 mm / m, or the longitudinal arc depth per meter of the formed glass sheet 1 of the simulation model is less than or equal to 60 mm / m, the transverse and longitudinal wrinkle heights of the formed glass sheet 1 of the simulation model are both less than 3 mm. Furthermore, compared to related technologies, the curvature of the formed glass sheet 1 can be greater, thereby manufacturing the formed glass sheet 1 with a greater curvature, reducing the generation of formed wrinkles or reducing the height of the formed wrinkles, and improving the optical refractive properties of the formed glass sheet 1.

[0090] Table 2 Simulation data of formed glass plates obtained by the simulation model using the technical solution of this application

[0091] It can also be seen from the experimental data in Table 2 above that when the horizontal arc depth per meter of the formed glass plate 1 of the simulation model is greater than 40 mm / m and the vertical arc depth per meter of the formed glass plate 1 of the simulation model is greater than 60 mm / m, the horizontal and vertical formed fold heights of the formed glass plate 1 of the simulation model are still both less than 5 mm.

[0092] Furthermore, in one possible embodiment, the arc depth per meter of the shaped glass sheet 1 in the transverse direction is greater than or equal to 25 mm / m, and the arc depth per meter of the shaped glass sheet 1 in the longitudinal direction is less than or equal to 50 mm / m. The experimental data in Table 2 above also show that when the arc depth per meter of the shaped glass sheet 1 in the transverse direction is greater than or equal to 25 mm / m, and the arc depth per meter of the shaped glass sheet 1 in the longitudinal direction is less than or equal to 50 mm / m, the transverse and longitudinal fold heights of the shaped glass sheet 1 in the simulation model are still both less than 5 mm.

[0093] In a possible embodiment, please refer to Figure 6, which is a top view of the lower molding die provided in one embodiment of the present application. The lower molding die 23 further includes a carrier 231, and the carrier 231 is integrally formed with the first support structure 232 or the second support structure 233.

[0094] Specifically, as shown in Figure 6, the second support structure 233 is spaced apart from the first support structure 232. In other words, there is a certain gap between the second support structure 233 and the first support structure 232, allowing the first and second support structures 233 and the first support structure 232 to move relative to each other, thereby providing space for the glass sheet 3 to bend in the opposite direction of the arc depth during the forming process. The carrier 231 is used to support the glass sheet 3. The carrier 231 is integrally formed with the first support structure 232 or the second support structure 233. When the carrier 231 moves toward the upper forming mold 22, it drives the first support structure 232 or the second support structure 233 to move toward the upper forming mold 22 and press the glass sheet 3 together, while not affecting the relative movement of the first support structure 232 and the second support structure 233.

[0095] For example, when the control component 24 controls the second support structure 233 to be pressed against the upper forming mold 22 first, the glass sheet 3 is squeezed by the second support structure 233 and the upper forming mold 22, so that the bending trend of the glass sheet 3 opposite to the arc depth direction is squeezed along the second support structure 233 to both sides of the second support structure 233, that is, the bending trend opposite to the arc depth direction is temporarily located between the second support structure 233 and the first support structure 232. Thereafter, when the control component 24 controls the first support structure 232 to be pressed against the upper forming mold 22, the bending trend opposite to the arc depth direction between the second support structure 233 and the first support structure 232 can be extended, thereby reducing or even eliminating the bending trend opposite to the arc depth direction, thereby improving the optical refractive performance of the formed glass sheet 1. The embodiment in which the control component 24 controls the first support structure 232 to be pressed against the upper forming mold 22 first and then controls the second support structure 233 to be pressed against the upper forming mold 22 is the same and will not be described in detail herein.

[0096] Furthermore, it should be noted that, since the glass sheet 3 may bend and deform under its own weight after being heated, when the glass sheet 3 is placed on the carrier 231, the side adjacent to the upper forming mold 22, typically the peripheral portion, is closer to the upper forming mold 22 than the middle portion. Therefore, during the pressing process of the glass sheet 3, the portion that is likely to bend in the opposite direction of the arc depth is located on the peripheral portion of the glass sheet 3. Therefore, in this embodiment, the second support structure 233 and the first support structure 232 are disposed around the carrier 231, that is, the second support structure 233 and the first support structure 232 are disposed correspondingly on the peripheral portion of the glass sheet 3 that is likely to bend in the opposite direction of the arc depth during the pressing process.

[0097] It is understandable that in other possible embodiments, the lower forming mold 23 may not include the carrier 231, that is, the lower forming mold 23 is hollow, and the first supporting structure 232 and the second supporting structure 233 are arranged around the periphery of the glass plate 3 and are used to support the glass plate 3. This application does not impose any restrictions on this.

[0098] In a possible embodiment, please refer to Figure 6 again. The lower molding mold 23 has a first side 234, a second side 235, a third side 236 and a fourth side 237. One end of the first side 234 is connected to the second side 235 by bending, and the other end is connected to the fourth side 237 by bending. One end of the third side 236 is connected to the second side 235 by bending, and the other end is connected to the fourth side 237 by bending. The first side 234 and the third side 236 are arranged opposite to each other; the second supporting structure 233 is arranged in the middle of the first side 234, the second side 235, the third side 236 and the fourth side 237, and extends to both sides respectively. The first supporting structure 232 is respectively arranged on both sides of the first side 234, the second side 235, the third side 236 and the fourth side 237.

[0099] It should be noted that, since the glass plate 3 will bend and deform under the action of its own weight after being heated, when the glass plate 3 is set on the carrier 231, the part corresponding to the two sides of the first edge 234 on the side adjacent to the upper forming mold 22 is closer to the upper forming mold 22 than the part corresponding to the middle of the first edge 234. During the pressing process of the glass plate 3, the parts corresponding to the two sides of the first edge 234 and the middle of the first edge 234 are more likely to produce a bending trend opposite to the arc depth direction. Therefore, in this embodiment, the second supporting structure 233 is set in the middle of the first edge 234 and extends to both sides respectively, and the first supporting structure 232 is set on both sides of the first edge 234 respectively, thereby improving the optical refractive performance of the formed glass plate 1. Similarly, in this embodiment, the second supporting structure 233 is arranged in the middle of the second side 235, the third side 236 and the fourth side 237, and extends to both sides respectively, and the first supporting structure 232 is arranged on both sides of the second side 235, the third side 236 and the fourth side 237 respectively.

[0100] Specifically, as shown in FIG6 , the second supporting structures 233 respectively arranged on the first side 234, the second side 235, the third side 236 and the fourth side 237 are integrated as a whole. The first supporting structures 232 arranged on both sides of the first side 234 are respectively connected to the first supporting structures 232 arranged on one side of the second side 235 and the fourth side 237. The first supporting structures 232 arranged on both sides of the third side 236 are respectively connected to the first supporting structures 232 arranged on one side of the second side 235 and the fourth side 237. This allows the bending trend opposite to the arc depth direction to extend diagonally, thereby improving the optical refractive performance of the shaped glass plate 1.

[0101] It can be understood that in other possible embodiments, the second support structure 233 respectively arranged on the first side 234, the second side 235, the third side 236 and the fourth side 237 may not be a whole, and the first support structure 232 arranged on the first side 234, the second side 235, the third side 236 and the fourth side 237 may not be connected, and the present application does not impose any restrictions on this.

[0102] In a possible implementation, the control component 24 controls the second supporting structure 233 to be pressed together with the upper molding die 22 , and after a preset time, the control component 24 controls the first supporting structure 232 to be pressed together with the upper molding die 22 .

[0103] Specifically, since the multiple cylinders are respectively connected to the second support structure 233 and the first support structure 232, the control unit can control the operation of the multiple cylinders at different times, so that the second support structure 233 and the first support structure 232 are pressed with the upper molding mold 22 at different times.

[0104] It is understood that, since the glass sheet 3 will bend and deform under its own weight after being heated, the side of the glass sheet 3 adjacent to the upper forming mold 22 is typically closer to the upper forming mold 22 at the periphery than at the center. In this embodiment, the control assembly 24 controls the second support structure 233 to first press against the upper forming mold 22, and then controls the first support structure 232 to press against the upper forming mold 22 after a predetermined time. This effectively transitions and extends the generated curvature opposite to the arc depth direction toward the peripheral corners of the formed glass sheet 1, thereby improving the optical refractive properties of the formed glass sheet 1. In other possible embodiments, the formed glass sheet 1 may have other curvature shapes. In this case, the control assembly 24 may control the first support structure 232 to first press against the upper forming mold 22, and then control the second support structure 233 to press against the upper forming mold 22 after a predetermined time. This is not a limitation of the present application.

[0105] In one possible embodiment, please also refer to Figure 7, which is a schematic diagram of the glass sheet forming device framework provided in another embodiment of the present application. The glass sheet forming device 2 also includes a processing chamber 21, which includes a forming section 211, a heating section 212, and a transfer section 213. The upper forming mold and the lower forming mold 23 are disposed on opposite sides of the forming section 211, with the heating section 212 located before the forming section 211 and the transfer section 213 located after the forming section 211. The glass sheet forming device 2 also includes a heating element 25, a transfer element 26, and a cooling assembly 27. The heating element 25 and the transmission element 26 are arranged in the heating section 212, the heating element 25 is used to heat the glass plate 3, and the transmission element 26 is used to transmit the glass plate 3 from the heating section 212 to the forming section 211; the cooling component 27 is arranged in the forming section 211, and is used to cool the formed glass plate 1; the transmission element 26 is also arranged in the transmission section 213, and is used to transmit the cooled formed glass plate 1.

[0106] Specifically, the heating elements 25 may be heating wires disposed on opposite sides of the transmission element 26, which may be a transmission roller. It will be appreciated that the spacing between two adjacent transmission elements 26 is less than the distance between the corresponding ends of the glass sheet 3, thereby enabling the glass sheet 3 to be transported on the transmission elements 26. While the glass sheet 3 is being transported on the transmission element 26, the heating elements 25 disposed on opposite sides of the transmission element 26 uniformly heat the glass sheet 3. Heating conditions, such as heating temperature and heating time, may vary depending on the requirements of the glass sheet 3 and are not limited in this application. The cooling assembly 27 may include a wind grid, which is used to rapidly cool the formed glass sheet 1.

[0107] The glass sheet 3 is transferred to the carrier 231 of the lower forming mold 23 via the transfer member 26 and then pressed and formed by the upper forming mold 22 and the lower forming mold 23 to form the formed glass sheet 1. After the cooling assembly 27 cools the formed glass sheet 1, the transfer member 26 further cools and transfers the formed glass sheet 1, completing the final processing to form a front windshield, rear windshield, sunroof, side window, etc. for use in a vehicle.

[0108] It is understandable that in other possible implementations, the processing chamber 21 is not necessary, and the shaped glass plate 1 can be prepared by forming outside the furnace, which is not limited in this application.

[0109] This application also provides a vehicle 4. Please refer to Figure 8, which is a top view of a vehicle according to one embodiment of this application. The vehicle 4 includes a frame 41 and the shaped glass sheet 1 described above. The frame 41 is used to support the shaped glass sheet 1. The shaped glass sheet 1 is described above and will not be further described here.

[0110] It can be understood that in this embodiment, the control component 24 controls the second support structure 233 and the first support structure 232 to be pressed against the upper forming mold 22 at different times, so that the bending trend of the glass plate 3 generated in the forming process that is opposite to the arc depth direction can be extended within the time difference between the pressing of the second support structure 233 and the first support structure 232 and the upper forming mold 22, thereby improving the optical refractive performance of the formed glass plate 1 and making the shape design of the glass applicable to the vehicle 4 more extensive.

[0111] This document uses specific examples to illustrate the principles and implementation methods of this application. The description of the above implementation methods is only used to help understand the core idea of ​​this application. At the same time, for those skilled in the art, based on the idea of ​​this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on this application.

Claims

1. A shaped glass sheet, characterized in that: The shaped glass sheet has a first curvature in a first direction, and the shaped glass sheet has a second curvature in a second direction, and the first direction and the second direction are perpendicular to each other; The shaped glass sheet comprises a first support position located at an edge bend, and a second support position located between two adjacent edge bends, wherein the second support position starts shaping before the first support position; The arc depth d per meter of the shaped glass sheet along the first direction is 30 mm / m≤d≤80 mm / m; The arc depth D per meter of the shaped glass sheet along the second direction is 25 mm / m≤D≤60 mm / m.

2. The shaped glass sheet according to claim 1, wherein: The first smoothness of the shaped glass plate along the first direction is less than or equal to 30°, and the second smoothness of the shaped glass plate along the second direction is less than or equal to 30°.

3. The shaped glass sheet according to claim 2, wherein: The first smoothness is less than or equal to 25°, or the first smoothness is less than or equal to 20°, or the first smoothness may be less than or equal to 10°, or the first smoothness may be less than or equal to 5°, or the first smoothness may be less than or equal to 3°; The second smoothness is less than or equal to 25°, or the second smoothness is less than or equal to 20°, or the second smoothness may be less than or equal to 10°, or the second smoothness may be less than or equal to 5°, or the second smoothness may be less than or equal to 3°.

4. The shaped glass sheet according to claim 2 or 3, wherein: The first smoothness is: projecting a number of first reflection corrugation lines extending substantially in the first direction on the surface of the formed glass plate, wherein any point Xi is taken on the first reflection corrugation line, and the value of the angle α between the line segment XiXi-1 and the line segment XiXi+1 is calculated by taking the supplementary angle of the angle α as the first smoothness of the point Xi; The second smoothness is: projecting a number of second reflection corrugation lines extending roughly along the second direction on the surface of the formed glass plate, wherein, taking any point Yi on the second reflection corrugation line, taking the two adjacent points Yi-1 and Yi+1 before and after the same second reflection corrugation line, calculating the angle β value between the line segment YiYi-1 and the line segment YiYi+1, and taking the supplementary angle of the angle β as the second smoothness of the point Yi.

5. The shaped glass sheet according to claim 4, wherein: The lengths of line segment XiXi-1 and line segment XiXi+1 are between 1 and 15 mm, and the lengths of line segment YiYi-1 and line segment YiYi+1 are between 1 and 15 mm.

6. The shaped glass sheet according to claim 1, wherein: When the arc depth per meter of the shaped glass sheet along the second direction is 25 mm / m≤D<40 mm / m, the arc depth per meter d of the shaped glass sheet along the first direction and the arc depth per meter D of the shaped glass sheet along the second direction satisfy 0.3≤D / d≤1.4; Alternatively, when the arc depth per meter of the shaped glass sheet along the second direction is 40 mm / m≤D≤60 mm / m, the arc depth per meter d of the shaped glass sheet along the first direction and the arc depth per meter D of the shaped glass sheet along the second direction satisfy 0.5≤D / d≤2.

7. The shaped glass sheet according to claim 1, wherein: The length of the shaped glass sheet in the first direction is greater than the length in the second direction.

8. The shaped glass sheet according to claim 7, wherein: The length in the first direction may specifically be 400 mm to 2000 mm, and the length in the second direction may specifically be 400 mm to 1400 mm.

9. The shaped glass sheet according to any one of claims 1 to 8, wherein: The second curvature is greater than the first curvature.

10. The shaped glass sheet according to claim 9, wherein: The first curvature may be in the range of 400 / m to 3000 / m, and the second curvature may be in the range of 400 / m to 3000 / m.

11. A method for forming a glass sheet, characterized in that: The glass sheet forming method comprises: Providing a glass sheet and heating the glass sheet to a forming temperature, wherein the glass sheet comprises a first support position located at an edge bend and a second support position located between two adjacent edge bends; placing the glass sheet heated to a forming temperature between an upper forming mold and a lower forming mold; The lower molding die first supports the second supporting position and cooperates with the upper molding die to press the second supporting position, and after a preset time, the lower molding die supports the first supporting position again and cooperates with the upper molding die to press the first supporting position and the second supporting position together; A shaped glass sheet is obtained.

12. The glass sheet forming method according to claim 11, wherein: The preset time is 0.1s to 0.6s.

13. The glass sheet forming method according to claim 11, wherein: The total time for pressing the upper and lower molding dies on the glass plate is 1s to 6s.

14. A glass sheet forming device, characterized in that: The glass plate forming device includes an upper forming mold and a lower forming mold, the upper forming mold and the lower forming mold are arranged opposite to each other, the lower forming mold at least supports the edge of the glass plate, and the lower forming mold includes a first supporting structure for supporting the edge bending part of the glass plate, and a second supporting structure for supporting the glass plate between two adjacent edge bending parts, and the first supporting structure and the second supporting structure can move relatively.

15. The glass sheet forming device according to claim 14, characterized in that: The lower molding die further includes a carrier, and the carrier is integrally formed with the first supporting structure or the second supporting structure.

16. The glass sheet forming device according to claim 14, wherein: The lower molding die comprises a first side portion, a second side portion, a third side portion and a fourth side portion, one end of the first side portion is connected to the second side portion by a bending, and the other end is connected to the fourth side portion by a bending, one end of the third side portion is connected to the second side portion by a bending, and the other end is connected to the fourth side portion by a bending, and the first side portion and the third side portion are arranged opposite to each other; the second supporting structure is arranged in the middle of the first side portion, the second side portion, the third side portion and the fourth side portion, and extends to both sides respectively, and the first supporting structure is arranged on both sides of the first side portion, the second side portion, the third side portion and the fourth side portion respectively.

17. The glass sheet forming device according to claim 14, wherein: The glass sheet forming device further comprises a control component, wherein the control component is respectively connected to the first supporting structure and the second supporting structure, and respectively controls the first supporting structure and the second supporting structure to be pressed with the upper forming mold at different times.

18. The glass sheet forming device according to claim 17, wherein: The control component controls the second supporting structure to be pressed together with the upper forming mold, and after a preset time, the control component controls the first supporting structure to be pressed together with the upper forming mold.

19. The glass sheet forming device according to claim 14, wherein: The glass sheet forming device further comprises a processing chamber, the processing chamber comprises a forming section, a heating section and a transmission section, the upper forming mold and the lower forming mold are arranged on opposite sides of the forming section, the heating section is located before the forming section, and the transmission section is located after the forming section; The glass sheet forming device also includes: A heating element and a transmission element, wherein the heating element and the transmission element are arranged in the heating section, the heating element is used to heat the glass sheet, and the transmission element is used to transmit the glass sheet from the heating section to the forming section; and A cooling component, which is disposed in the forming section and is used to cool the formed glass sheet; The transmission member is also arranged in the transmission section, and is used for transmitting the shaped glass sheet after being cooled.

20. A vehicle, characterized in that: The vehicle comprises a frame and a shaped glass sheet according to any one of claims 1 to 10, wherein the frame is used to carry the shaped glass sheet.

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