Glass forming apparatus and method

Abstract

The application relates to a glass forming device and method. The device comprises a first upper die, a lower die and a second upper die. The first upper die is provided with a first die surface for fitting a softened glass sheet to pre-press form the glass sheet. The lower die is provided with a second die surface for fitting and adsorbing the pre-press formed glass sheet. The bottom of the second upper die is provided with a recess and a pressing part circumferentially arranged around the recess. When the second die surface fits the glass sheet, the pressing part is used to press the edge of the glass sheet away from the second die surface. The adsorption force direction of the second die surface is the same as the gravity direction of the glass sheet, which can facilitate the glass sheet to be closely fitted to the second die surface, the fitting degree is good, and the forming quality can be guaranteed. Moreover, the recess can avoid the glass sheet, and the forming quality problem of the glass sheet caused by the different expansion degrees of the second upper die and the second die surface of the lower die after thermal expansion can be avoided, and the forming quality can be improved.

Description

Technical Field

[0001] This application relates to the field of glass production technology, and in particular to a glass forming apparatus and method. Background Technology

[0002] Currently, automotive glass is typically produced using a pressing process, which involves heating and softening a glass sheet; then pressing the softened glass sheet through an upper punch and a lower die to form the desired shape. However, as customers increasingly demand higher precision in controlling the surface variations of the HUD area, the quality of glass sheets produced using the pressing process in current technologies cannot meet their needs. Summary of the Invention

[0003] Therefore, it is necessary to provide a glass forming apparatus and method that can improve the forming quality of glass in order to solve at least one problem in the related technology.

[0004] On one hand, this application provides a glass forming apparatus, comprising:

[0005] The first upper mold has a first mold surface at its bottom, which is used to fit the softened glass plate so that the glass plate is pre-pressed and formed.

[0006] The lower mold has a second mold surface on its top, which is used to fit the pre-pressed glass plate and can adsorb the glass plate; and

[0007] The second upper mold has a relief recess at its bottom and a pressing part arranged circumferentially around the relief recess; the second upper mold and the lower mold cooperate with each other, and when the second mold surface is attached to the glass plate, the pressing part is used to press against the edge of the glass plate away from the second mold surface.

[0008] In one embodiment, the ratio of the surface curvature of the first mold surface to the surface curvature of the second mold surface is K, where 20% ≤ K ≤ 60%.

[0009] In one embodiment, the ratio of the surface curvature of the first mold surface along the first direction to the surface curvature of the second mold surface along the first direction is K1, and the ratio of the surface curvature of the first mold surface along the second direction to the surface curvature of the second mold surface along the second direction is K2, 20%≤K1≤40%, 30%≤K2≤60%, wherein the first direction is the arrangement direction of the two opposite long sides of the glass plate, and the second direction is the arrangement direction of the two opposite short sides of the glass plate.

[0010] In one embodiment, the distance between the inner and outer edges of the pressing surface of the pressing part is W, where 3mm ≤ W ≤ 30mm; and / or, the pressing surface of the pressing part matches the second mold surface.

[0011] In one embodiment, the vertical distance between the recessed surface of the avoidance recess and the pressing surface of the pressing part is 10mm to 80mm.

[0012] In one embodiment, the glass forming apparatus also satisfies at least one of the following conditions:

[0013] (1) The first upper mold is provided with a first adsorption hole and a first negative pressure chamber. The first adsorption hole extends to the first mold surface. The first negative pressure chamber is connected to the first adsorption hole, and the first negative pressure chamber is also used to connect with a vacuum device.

[0014] (2) The lower mold is provided with a second adsorption hole and a second negative pressure chamber. The second adsorption hole extends to the second mold surface. The second negative pressure chamber is connected to the second adsorption hole. The second negative pressure chamber is also used to connect with a vacuum device.

[0015] (3) The second upper mold is provided with a third adsorption hole and a third negative pressure chamber. The third adsorption hole extends to at least one of the inner wall of the avoidance recess and the pressing surface of the pressing part. The third negative pressure chamber is connected to the third adsorption hole and is also used to connect to a vacuum device.

[0016] In one embodiment, the first mold surface includes a first region and a second region, the first region being connected to the second region, the first region being correspondingly disposed with the HUD area on the glass plate, and the second region being correspondingly disposed with the area outside the HUD area on the glass plate, the ratio of the density of the first adsorption holes arranged on the first region to the density of the first adsorption holes arranged on the second region being 1.5~2; and / or,

[0017] The second mold surface includes a third region and a fourth region. The third region is connected to the fourth region. The third region is correspondingly set with the HUD area on the glass plate. The fourth region is correspondingly set with the area outside the HUD area on the glass plate. The ratio of the density of the second adsorption holes arranged on the third region to the density of the second adsorption holes arranged on the fourth region is 1.5 to 2.

[0018] In one embodiment, the glass forming apparatus further includes a first conveying mechanism and a second conveying mechanism;

[0019] The first conveying mechanism is used to carry the glass plate and can convey the glass plate to the first forming area. The first upper mold is vertically and vertically disposed in the first forming area.

[0020] The second upper mold is vertically and vertically disposed in the second forming area, and the first forming area and the second forming area are arranged along the conveying direction of the second conveying mechanism;

[0021] The second conveying mechanism is connected to the lower mold, and the second conveying mechanism can carry the lower mold and drive the lower mold to switch positions between the first forming area and the second forming area.

[0022] In one embodiment, the first conveying mechanism includes a plurality of conveying rollers, all of which are arranged sequentially at intervals along the conveying direction; the distance between adjacent conveying rollers is 80mm to 150mm.

[0023] In one embodiment, the glass forming apparatus further includes a blowing mechanism disposed in the first forming area, the blowing mechanism being used to provide jet airflow to blow up the glass plate on the first conveying mechanism and adhere it to the first mold surface.

[0024] In one embodiment, the blowing mechanism is provided with a plurality of blowing holes, which are distributed according to the shape and size of the glass plate. The blowing mechanism is located below the first conveying mechanism, and the blowing holes are distributed in the interval area between two adjacent conveying rollers of the first conveying mechanism.

[0025] In one embodiment, the glass forming apparatus further includes a forming furnace body, the forming furnace body having a first forming area and a second forming area, the first upper mold and the second upper mold being respectively vertically and vertically disposed within the forming furnace body; the blowing mechanism is disposed within the forming furnace body, the first conveying mechanism extending at least partially into the forming furnace body, and the second conveying mechanism extending at least partially into the forming furnace body.

[0026] In one embodiment, the glass forming apparatus further includes a heating mechanism, which is arranged sequentially with the forming furnace body along the conveying direction. The first conveying mechanism extends at least partially into the heating mechanism. The heating mechanism is used to heat the glass plate to soften it. The first conveying mechanism is used to convey the glass plate heated by the heating mechanism into the forming furnace body.

[0027] In one embodiment, the glass forming apparatus further includes an annealing mechanism and a cooling mechanism. The forming furnace, the annealing mechanism, and the cooling mechanism are arranged sequentially along the conveying direction. The annealing mechanism is located in the annealing zone, and the cooling mechanism is located in the cooling zone. The second conveying mechanism enables the pressed glass plate to move to the annealing zone and the cooling zone. The annealing mechanism is used to anneal the glass plate that has moved to the annealing zone, and the cooling mechanism is used to cool the annealed glass plate that has moved to the cooling zone.

[0028] In one embodiment, the glass forming apparatus further includes an adsorption mechanism, an annealing ring, and a sheet removal arm; the adsorption mechanism is disposed in the annealing zone and is located above the second conveying mechanism, and the adsorption mechanism can be used to adsorb and fix the glass plate located in the annealing zone or to release the glass plate; the lower mold, the annealing ring, and the sheet removal arm are sequentially arranged in the second conveying mechanism along the conveying direction; when the second conveying mechanism is in the first position, the lower mold is located in the first forming zone, the annealing ring is located in the second forming zone, and the sheet removal arm is located in the annealing zone; when the second conveying mechanism is in the second position, the lower mold is located in the second forming zone, the annealing ring is located in the annealing zone, and the sheet removal arm is located in the cooling zone.

[0029] In one embodiment, the first die surface is a downwardly protruding punch surface, and the second die surface is a downwardly recessed die surface.

[0030] On the other hand, this application also provides a glass forming method using the aforementioned glass forming apparatus, the method comprising the following steps:

[0031] The softened glass plate is received by the first upper mold, and the first mold surface is attached to the softened glass plate, so that the glass plate is pre-pressed and formed.

[0032] The lower mold receives the pre-pressed glass plate and carries and adsorbs the glass plate through the second mold surface, so that the glass plate initially adheres to the second mold surface under the adsorption force of the second mold surface and its own gravity.

[0033] The position of one of the second upper mold and the lower mold is adjusted such that the second upper mold presses against the edge of the glass plate away from the second mold surface through the pressing part, and the second mold surface remains attached to the glass plate so that the glass plate and the second mold surface are completely in contact.

[0034] In one embodiment, before the step of receiving the softened glass plate through the first upper mold, the method further includes: heating the glass plate to a first preset temperature to soften the glass plate;

[0035] The step of receiving the softened glass plate through the first upper mold includes: when the softened glass plate is conveyed to the first forming area by the first conveying mechanism, the glass plate on the first conveying mechanism is blown upward by the jet airflow, so that the glass plate is attached to the first mold surface; when the glass plate is attached to the first mold surface, the first mold surface adsorbs the glass plate, so that the glass plate remains attached to the first mold surface.

[0036] The step of receiving the pre-pressed glass plate by the lower mold includes: moving the lower mold to the first forming area, the first mold surface stopping adsorbing the glass plate, so that the glass plate falls to the second mold surface under its own gravity;

[0037] After the step of making the glass plate fully bonded to the second mold surface, the method further includes: conveying the pressed glass plate to an annealing zone for annealing treatment; and conveying the annealed glass plate to a cooling zone for cooling treatment.

[0038] In the glass forming apparatus and method described above, during the pressing and forming process of the glass sheet, the softened glass sheet is first bonded to the first mold surface of the first upper mold, thus pre-pressing the glass sheet. Then, the pre-pressed glass sheet is placed on the second mold surface of the lower mold, where it initially adheres to the second mold surface under its own weight and the adsorption effect of the second mold surface. The pressing part presses against the edge of the glass sheet, and further adsorbs the glass sheet through the second mold surface, ensuring complete adhesion and pressing. Thus, the adsorption force of the second mold surface is in the same direction as the gravity of the glass sheet, facilitating a tight fit between the glass sheet and the second mold surface, resulting in good adhesion and ensuring forming quality. Furthermore, during the pressing and forming process of the glass sheet by the lower mold and the second upper mold, the avoidance recess avoids the glass sheet, preventing forming quality problems caused by the second upper mold expanding at a different rate than the second mold surface of the lower mold after heating, thereby further improving the forming quality of the glass sheet. Attached Figure Description

[0039] Figure 1 This is a structural diagram of the first working state of a glass forming apparatus according to an embodiment of this application.

[0040] Figure 2 This is a structural diagram of the second working state of a glass forming apparatus according to an embodiment of this application.

[0041] Figure 3 This is a structural diagram of the third working state of a glass forming apparatus according to an embodiment of this application.

[0042] Figure 4This is a structural diagram of the fourth working state of a glass forming apparatus according to an embodiment of this application.

[0043] Figure 5 This is a structural diagram of the first conveying mechanism in a glass forming apparatus according to an embodiment of this application, showing the conveying of a glass plate.

[0044] Figure 6 This is a structural view of the first upper mold in a glass forming apparatus according to an embodiment of this application.

[0045] Figure 7 This is another structural view of the first upper mold in a glass forming apparatus according to an embodiment of this application.

[0046] Figure 8 This is a structural view of the second upper mold in a glass forming apparatus according to an embodiment of this application.

[0047] Figure 9 This is another structural view of the second upper mold in a glass forming apparatus according to an embodiment of this application.

[0048] Figure 10 This is a structural view of the lower mold in a glass forming apparatus according to an embodiment of this application.

[0049] Figure 11 This is another structural view of the lower mold in a glass forming apparatus according to an embodiment of this application.

[0050] Explanation of reference numerals in the attached figures:

[0051] 10. First upper mold; 11. First mold surface; 12. First negative pressure chamber; 20. Lower mold; 21. Second mold surface; 22. Second negative pressure chamber; 30. Second upper mold; 31. Recessed portion; 311. Sunken surface; 32. Pressing portion; 321. Pressing surface; 33. Third negative pressure chamber; 40. First conveying mechanism; 41. Conveying roller; 50. Second conveying mechanism; 60. Blowing mechanism; 611. Blowing hole; 70. Molding furnace body; 71. First forming zone; 72. Second forming zone; 73. First heating element; 80. Heating mechanism; 81. Second heating element; 91. Annealing mechanism; 911. Annealing fan; 92. Cooling mechanism; 921. Cooling fan; 93. Annealing zone; 94. Cooling zone; 95. Adsorption mechanism; 96. Annealing ring; 97. Unloading arm; 100. Glass plate; X. Conveying direction; Z. Vertical direction; A. First direction; B. Second direction. Detailed Implementation

[0052] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0053] It should be noted that the HUD area in this embodiment usually refers to the projection display area of ​​the vehicle head-up display in the driver's field of vision.

[0054] It should also be noted that the glass panel in this embodiment specifically refers to a single piece of glass. The glass panel can be a windshield, rear windshield, side window, or sunroof, etc., and there are no special restrictions. It can be set according to actual needs.

[0055] As described in the background section, the glass sheets produced by the pressing process in related technologies often fail to meet quality requirements. This is because, in the pressing process, the external forming mold, being at a lower temperature than the glass, is heated by the glass upon contact, causing its temperature to gradually increase during continuous production. Even with high machining precision and good cold-state matching of the die and punch, the mold surface expands as the temperature rises. Since the degree of expansion of the die and punch cannot be precisely controlled, the consistency of their surfaces cannot be guaranteed. This can lead to glass cracking, other surface transition problems, optical issues, and even poor curvature and surface stability in the HUD area of ​​the windshield, ultimately failing to meet customer requirements for glass quality.

[0056] For the reasons mentioned above, this application provides a glass forming apparatus and method, which is a technical solution to improve the forming quality of glass.

[0057] The following will combine Figures 1 to 11 A detailed description of a glass forming apparatus and method according to an embodiment of this application will be provided.

[0058] See Figures 1 to 4This application provides a glass forming apparatus, comprising a first upper mold 10, a lower mold 20, and a second upper mold 30. The bottom of the first upper mold 10 is provided with a first mold surface 11. Specifically, the first mold surface 11 is a downwardly protruding convex mold surface, used to adhere to a softened glass plate 100 for pre-pressing the glass plate 100. The top of the lower mold 20 is provided with a second mold surface 21. Specifically, the second mold surface 21 is a downwardly recessed mold surface. The second mold surface 21 is used to adhere to the pre-pressed glass plate 100 and can adsorb the glass plate 100. The bottom of the second upper mold 30 is provided with a relief recess 31 and a pressing portion 32 circumferentially arranged around the relief recess 31. The second upper mold 30 and the lower mold 20 work together. When the second mold surface 21 is in contact with the glass plate 100, the pressing part 32 is used to press against the edge of the glass plate 100 away from the second mold surface 21. That is, the part of the pressing part 32 that abuts against the glass plate 100 is arranged around the center of the glass plate 100. Specifically, the pressing part 32 only abuts against the edge of the glass plate 100, and the other areas of the glass plate 100 are correspondingly provided with the avoidance recess 31, which can avoid the second upper mold 30.

[0059] In the glass forming apparatus described above, during the pressing and forming process of the glass plate 100, the softened glass plate 100 is first bonded to the first mold surface 11 of the first upper mold 10, thus pre-pressing the glass plate 100. Then, the pre-pressed glass plate 100 is placed on the second mold surface 21 of the lower mold 20, and the glass plate 100 initially adheres to the second mold surface 21 under its own weight and the adsorption effect of the second mold surface 21. The pressing part 32 presses against the edge of the glass plate 100, and further adsorbs the glass plate 100 onto the second mold surface 21, so that the glass plate 100 and the second mold surface 21 are tightly bonded and pressed into shape. It can be seen that the adsorption force of the second mold surface 21 is in the same direction as the gravity of the glass plate 100, which facilitates the complete adhesion of the glass plate 100 to the second mold surface 21, resulting in a good fit and ensuring the forming quality. Furthermore, during the process of pressing and forming the glass plate 100 by the lower mold 20 and the second upper mold 30, the avoidance recess 31 can avoid the glass plate 100, thus avoiding the forming quality problem of the glass plate 100 caused by the expansion degree of the second upper mold 30 after being heated and being different from the expansion degree of the second mold surface 21 of the lower mold 20, thereby further improving the forming quality of the glass plate 100.

[0060] Please see Figures 1 to 4Based on the aforementioned embodiments, the glass forming apparatus further includes a first conveying mechanism 40. The first conveying mechanism 40 includes, but is not limited to, a conveying roller 41, a conveying chain, a robotic arm, etc., and is not specifically limited thereto. The first conveying mechanism 40 is used to carry the glass plate 100 and can convey the glass plate 100 to the first forming area 71. The first upper mold 10 is vertically and vertically disposed in the first forming area 71. When the first conveying mechanism 40 conveys the glass plate 100 to the first forming area 71, the first upper mold 10 disposed in the first forming area 71 lowers its own height position and receives the glass plate 100 conveyed by the first conveying mechanism 40, thereby performing pre-pressing forming on the glass plate 100.

[0061] Based on the aforementioned embodiments, the glass forming apparatus further includes a second conveying mechanism 50. The second conveying mechanism 50 may include, but is not limited to, a transfer shuttle, a robotic arm, etc., and is not specifically limited here. The second upper mold 30 is vertically and flexibly disposed in the second forming area 72, and the first forming area 71 and the second forming area 72 are arranged along the conveying direction X of the second conveying mechanism 50. The second conveying mechanism 50 is connected to the lower mold 20, and can carry the lower mold 20 and drive it to switch positions between the first forming area 71 and the second forming area 72. After the glass plate 100 is pre-pressed, the second conveying mechanism 50 conveys the lower mold 20 to the first forming area 71, and the lower mold 20 receives the glass plate 100 pre-pressed by the first upper mold 10. The second conveying mechanism 50 conveys the lower mold 20 to the second forming area 72. The second upper mold 30, located in the second forming area 72, lowers its height and then presses against the glass plate 100 through the pressing part 32. Under the adsorption of the second mold surface 21 and the gravity of the glass plate 100, the glass plate 100 is tightly adhered to the second mold surface 21 and pressed into shape. It can be seen that, under the action of the first conveying mechanism 40 and the second conveying mechanism 50, in conjunction with the first upper mold 10, the second upper mold 30, and the lower mold 20, the pressing and forming operation of the glass plate 100 can be completed.

[0062] For example, the glass forming apparatus also includes a first lifting mechanism and a second lifting mechanism (not shown in the figure). The specific structural forms of the first and second lifting mechanisms are varied, such as motor lead screws, lifting cylinders, cams, etc., and no particular limitation is made here. The first lifting mechanism is connected to the first upper mold 10 and can drive the first upper mold 10 to adjust its own height position. The second lifting mechanism is connected to the second upper mold 30 and can drive the second upper mold 30 to adjust its own height position.

[0063] Please see Figures 1 to 4For example, the second conveying mechanism 50 is positioned higher than the first conveying mechanism 40. Thus, when the second conveying mechanism 50 receives the glass plate 100 in the first forming area 71, it does not interfere with the portion of the first conveying mechanism 40 located in the first forming area 71, ensuring that the second conveying mechanism 50 can smoothly receive the pre-pressed glass plate 100.

[0064] Based on the aforementioned embodiments, the glass forming apparatus also includes a controller. The first conveying mechanism 40, the second conveying mechanism 50, the first lifting mechanism, and the second lifting mechanism are each electrically connected to the controller and work in coordination under the control of the controller to complete the pressing and forming of the glass plate 100.

[0065] In some specific embodiments, the first conveying mechanism 40 includes a plurality of conveying rollers 41. The specific number of conveying rollers 41 is not limited. All conveying rollers 41 are arranged sequentially at intervals along the conveying direction X. The conveying rollers 41 can convey the glass plate 100 from the heating zone to the first forming zone 71. The conveying rollers 41 are arranged in a regular pattern. Optionally, the spacing between adjacent conveying rollers 41 may include, but is not limited to, 80mm to 150mm, and the specific spacing may be, for example, 80mm, 100mm, 120mm, 130mm, 140mm or 150mm, etc., which can be adjusted and set according to actual needs, and are not particularly limited here. When the distance between adjacent conveyor rollers 41 is greater than 150mm, the distance is too large, which reduces the support stability of the glass plate 100 and is not conducive to the stable conveying of the glass plate 100. When the distance between adjacent conveyor rollers 41 is less than 80mm, the distance is too small, which will affect the heating effect of the glass plate 100. In addition, the conveyor rollers 41 cause greater obstruction to the jet airflow below the glass plate 100, which is not conducive to blowing the glass plate 100 upward.

[0066] After the softened glass plate 100 is conveyed to the first forming area 71 by the first conveying mechanism 40, in order to facilitate the transfer of the softened glass plate 100 from the first conveying mechanism 40 to the first upper mold 10, please refer to [link to relevant documentation]. Figure 2 , Figure 3 and Figure 5 In some embodiments, the glass forming apparatus further includes a blowing mechanism 60. The blowing mechanism 60 is disposed below the first conveying mechanism 40 and located in the first forming area 71. When the first conveying mechanism 40 conveys the softened glass plate 100 to the first forming area 71, the first upper mold 10 descends to a preset height position. The blowing mechanism 60 provides an upward jet of airflow, which acts on the glass plate 100 to blow it up from the first conveying mechanism 40 and adhere it to the first mold surface 11. Furthermore, the first upper mold 10 can adsorb the glass plate 100, causing it to fit tightly against the first mold surface 11, thereby achieving pre-forming of the glass plate 100.

[0067] Please see Figure 2 , Figure 3 and Figure 5 Based on the aforementioned embodiment, the blowing mechanism 60 is provided with a plurality of blowing holes 611. The plurality of blowing holes 611 are distributed according to the shape and size of the glass plate 100. Specifically, along the vertical direction Z, each blowing hole 611 is arranged opposite to the glass plate 100. In other words, the projection of the glass plate 100 along the vertical direction Z covers all the blowing holes. Furthermore, the blowing holes 611 are preferably arranged at equal intervals. Moreover, in order to avoid interference with the conveying rollers 41, the blowing holes 611 are distributed in the interval area between two adjacent conveying rollers 41 of the first conveying mechanism 40. That is, the blowing holes 611 are arranged opposite to the interval area between two adjacent conveying rollers 41. In this way, the jet airflow from the blowing holes 611 can pass through the interval area between two adjacent conveying rollers 41 and act directly on the glass plate 100, causing the glass plate 100 to move upward and fit against the first mold surface 11.

[0068] For example, the blowing mechanism 60 includes multiple air ducts (not shown in the figure). The multiple air ducts are arranged sequentially at intervals along the conveying direction X. Each air duct is correspondingly arranged in the interval area between each two adjacent conveying rollers 41. Blowing holes 611 are arranged at intervals along the length of the air ducts.

[0069] It should be noted that the shape and size of the first mold surface 11 and the second mold surface 21 can be flexibly adjusted and set according to the preset profile of the glass plate 100, and no special restrictions are imposed here. In this embodiment, the first mold surface 11 is used to pre-form the glass plate 100, and the second mold surface 21 is used to perform secondary forming on the pre-formed glass plate 100. Thus, by adopting a step-by-step forming method, the fit between the glass plate 100 and the mold surface is good, and the profile forming accuracy is high.

[0070] The second mold surface 21 is the final forming surface; that is, the final surface features of the glass plate 100 are determined and formed by the second mold surface 21. Therefore, the second mold surface 21 is designed to be consistent with the preset forming surface of the glass plate 100, so that the required glass plate 100 can be obtained by pressing and forming. Furthermore, the curvature of the first mold surface 11 is smaller than that of the second mold surface 21.

[0071] Optionally, the ratio of the surface curvature of the first mold surface 11 to the surface curvature of the second mold surface 21 is K, where K is not limited to 20% to 60%, specifically for example, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55% or 60%, etc., without any particular limitation.

[0072] When K is less than 20%, the difference in curvature between the preformed glass plate 100 and the second mold surface 21 is too large. This causes significant stretching of the glass plate 100 during the vacuum-forced bonding process after the preformed glass plate 100 is transferred to the second mold surface 21 of the lower mold 20. This has a significant adverse effect on the optics and surface transition of the glass plate 100, resulting in a reduction in the pressing quality of the glass plate 100. When K is greater than 60%, the glass plate 100 will change from a flat surface to a curved surface during the preforming process. During the bonding process between the glass plate 100 and the first mold surface 11, the stretching of the glass plate 100 will also be significant, having a significant adverse effect on the optics and surface transition of the glass, resulting in a reduction in the pressing quality of the glass plate 100.

[0073] Please see Figure 6 and Figure 10 Based on the aforementioned embodiments, the ratio of the surface curvature of the first mold surface 11 along the first direction A to the surface curvature of the second mold surface 21 along the first direction A is K1, and the ratio of the surface curvature of the first mold surface 11 along the second direction B to the surface curvature of the second mold surface 21 along the second direction B is K2, 20%≤K1≤40%, 30%≤K2≤60%, wherein the first direction A is the arrangement direction of the two opposite long sides of the glass plate 100, and the second direction B is the arrangement direction of the two opposite short sides of the glass plate 100.

[0074] Specifically, K1 can be, but is not limited to, 20%, 22%, 25%, 28%, 30%, 35%, 36%, 38%, or 40%. Of course, in some optional schemes, K1 can also be set to any value less than 20% or greater than 40%, without any particular restriction.

[0075] Specifically, K2 can be, but is not limited to, 30%, 32%, 33%, 35%, 38%, 40%, 43%, 50%, 53%, 55%, or 60%. Of course, in some optional schemes, K2 can also be set to any value less than 30% or greater than 60%, without any particular restrictions.

[0076] The first upper mold 10 has an adsorption capacity, which can adsorb the glass plate 100, so that the glass plate 100 is tightly attached to the first mold surface 11, thereby providing high pre-forming quality.

[0077] Please see Figure 2 , Figure 6 and Figure 7Specifically, the first upper mold 10 is provided with a first adsorption hole (not shown in the figure), which extends to the first mold surface 11. Under the suction effect of the vacuum device, the first adsorption hole acts to adsorb the glass plate 100. The number of the first adsorption holes is not limited and can be flexibly adjusted and set according to actual needs. More specifically, the first upper mold 10 is also provided with a first negative pressure chamber 12. The first negative pressure chamber 12 is connected to the first adsorption hole. The first negative pressure chamber 12 is also connected to the vacuum device. When the vacuum device is working, the first adsorption hole has an adsorption effect, thereby enabling the glass plate 100 to be adsorbed and adhered to the first mold surface 11.

[0078] Please see Figure 2 , Figure 10 and Figure 11 For example, the second mold surface 21 has adsorption capacity. Optionally, the lower mold 20 is provided with a second adsorption hole (not shown in the figure), which extends to the second mold surface 21. Multiple second adsorption holes are provided, arranged at intervals. Furthermore, the lower mold 20 is also provided with a second negative pressure chamber 22, which communicates with the second adsorption holes and is also connected to a vacuum device. When the vacuum device is working, the second adsorption holes have an adsorption effect, thereby enabling the glass plate 100 to be adsorbed and adhered to the second mold surface 21.

[0079] For example, the second upper mold 30 has an adsorption capacity, which can adsorb and fix the glass plate 100 according to the process requirements, and work in conjunction with the second conveying mechanism 50 to transfer the glass plate 100.

[0080] Please see Figure 4 , Figure 8 and Figure 9 Specifically, the second upper mold 30 is provided with a third adsorption hole (not shown in the figure). The third adsorption hole extends to at least one of the inner wall of the avoidance recess 31 and the pressing surface 321 of the pressing part 32. Under the suction action of the vacuum device, the third adsorption hole plays the role of adsorbing and fixing the glass plate 100. The number of third adsorption holes is not limited and can be flexibly adjusted and set according to actual needs. More specifically, the second upper mold 30 is also provided with a third negative pressure chamber 33. The third negative pressure chamber 33 is connected to the third adsorption hole. The third negative pressure chamber 33 is also connected to the vacuum device. When the vacuum device is working, the third adsorption hole has an adsorption effect, thereby achieving the adsorption and fixing of the glass plate 100.

[0081] In this case, for the glass plate 100 used to process the HUD area, the surface accuracy requirements of the HUD area on the glass plate 100 are higher than those of other locations. Therefore, for example, the first mold surface 11 includes a first region and a second region. The first region is connected to the second region, the first region is correspondingly set with the HUD area on the glass plate 100, and the second region is correspondingly set with the area on the glass plate 100 other than the HUD area. The density of the first adsorption holes arranged on the first region is greater than the density of the first adsorption holes arranged on the second region. Optionally, the ratio of the density of the first adsorption holes arranged on the first region to the density of the first adsorption holes arranged on the second region is, but is not limited to, 1.5 to 2, specifically, for example, 1.5, 1.6, 1.7, 1.8, 1.9, or 2, which can be flexibly adjusted and set according to actual needs, and is not limited here. In this way, the adsorption force of the first region on the HUD area on the glass plate 100 is greater, which can ensure the pre-forming accuracy of the HUD area on the glass plate 100, and thus ensure the forming quality of the glass plate 100.

[0082] For example, the second mold surface 21 includes a third region and a fourth region. The third region is connected to the fourth region, and the third region is correspondingly set with the HUD area on the glass plate 100, while the fourth region is correspondingly set with the area on the glass plate 100 other than the HUD area. The density of the second adsorption holes arranged on the third region is greater than the density of the second adsorption holes arranged on the fourth region. Optionally, the ratio of the density of the second adsorption holes arranged on the third region to the density of the second adsorption holes arranged on the fourth region is, but is not limited to, 1.5 to 2, specifically, for example, 1.5, 1.6, 1.7, 1.8, 1.9, or 2, etc., which can be flexibly adjusted and set according to actual needs, and are not limited here. In this way, the adsorption force of the third region on the HUD area on the glass plate 100 is greater, which can ensure the forming quality of the HUD area on the glass plate 100.

[0083] In some embodiments, the pressing surface 321 of the pressing part 32 matches the second mold surface 21. Thus, each part of the pressing surface 321 presses against the edge of the glass plate 100, ensuring that the glass plate 100 is completely and tightly fitted to the second mold surface 21, which is beneficial to the forming quality of the glass plate 100. Furthermore, when the pressing surface 321 and the glass plate 100 are well fitted, a well-sealed space can be formed between the clearance recess 31 and the glass plate 100. Under the negative pressure suction of the vacuum device, the glass plate 100 is stably fitted to the second upper mold 30, thereby facilitating the stable transfer of the glass plate 100.

[0084] In some embodiments, the distance between the inner and outer edges of the pressing surface 321 of the pressing part 32 is W, where 3mm ≤ W ≤ 30mm. Specifically, W can be 3mm, 5mm, 10mm, 12mm, 15mm, 16mm, 18mm, 20mm, 25mm, or 30mm, etc. Of course, as some optional solutions, W can also be less than 3mm or greater than 30mm, and no particular limitation is imposed here.

[0085] When W is less than 3mm, the width of the pressing surface 321 is small, resulting in poor sealing between the pressing surface 321 and the glass plate 100. When W is greater than 30mm, the width of the pressing surface 321 is large, and the expansion degree of the pressing surface 321 is different from that of the second mold surface 21. Consequently, the consistency between the pressing surface 321 and the second mold surface 21 cannot be guaranteed, which may cause the glass to crack or other surface transition and optical problems during the pressing process. It may even lead to poor curvature and surface stability of the HUD area of ​​the windshield, making the glass forming quality unable to meet customer requirements.

[0086] Please see Figure 4 , Figure 8 and Figure 9 For example, the distance between the recessed surface 311 of the avoidance recess 31 and the pressing surface 321 of the pressing part 32 along the vertical direction Z is, but is not limited to, 10mm to 80mm, specifically, 10mm, 15mm, 20mm, 35mm, 40mm, 50mm, 60mm, or 80mm. Here, the vertical direction Z is also the moving direction of the second upper mold 30. Figure 4 As indicated by arrow Z in the diagram. This not only ensures that the lower surface 311 will not come into contact with the glass plate 100 after thermal expansion, but also allows the second upper mold 30 to have a better adsorption effect on the glass plate 100 when the vacuum device is turned on.

[0087] Specifically, when the distance between the recessed surface 311 of the avoidance recess 31 and the pressing surface 321 of the pressing part 32 along the vertical direction Z is less than 10mm, the risk of the recessed surface 311 coming into contact with the glass plate 100 after thermal expansion increases as the distance decreases; when the distance between the recessed surface 311 of the avoidance recess 31 and the pressing surface 321 of the pressing part 32 along the vertical direction Z is greater than 80mm, the volume of the avoidance recess 31 will increase as the distance increases, which will weaken the adsorption effect on the glass plate 100 when the vacuum device is turned on, and the time to form a vacuum environment will be longer.

[0088] Please see Figures 1 to 4In some embodiments, the glass forming apparatus further includes a forming furnace body 70. The forming furnace body 70 has a heating function; for example, a first heating element 73 is provided on the inner wall of the forming furnace body 70. The number of first heating elements 73 is not limited, and the first heating elements 73 include, but are not limited to, electric heating elements, specifically including electric heating rods. Under the heating adjustment of the first heating element 73, the temperature inside the forming furnace body 70 is stably adjusted and controlled, thereby improving the forming quality of the glass plate 100. The forming furnace body 70 forms a first forming area 71 and a second forming area 72. The temperatures of the first forming area 71 and the second forming area 72 are flexibly adjusted and controlled according to actual needs. Optionally, the temperatures of the first forming area 71 and the second forming area 72 are each controlled to be between 500°C and 700°C. The first upper mold 10 and the second upper mold 30 are each vertically and vertically disposed within the forming furnace body 70. A blowing mechanism 60 is disposed within the forming furnace body 70. The first conveying mechanism 40 extends at least partially into the forming furnace body 70, and the second conveying mechanism 50 extends at least partially into the forming furnace body 70. Specifically, the first conveying mechanism 40 extends into the forming furnace body 70 from one end, and the second conveying mechanism 50 extends into the forming furnace body 70 from the opposite end. In this way, both the pre-forming and secondary forming of the glass plate 100 are completed within the forming furnace body 70. The temperature of the glass plate 100 during the forming process is precisely controlled, and the temperature of the forming mold does not gradually increase during continuous production. Therefore, the mold surface does not expand, which helps to improve the forming quality of the glass plate 100.

[0089] Based on the aforementioned embodiments, the glass forming apparatus further includes a heating mechanism 80. The heating mechanism 80 and the forming furnace body 70 are arranged sequentially along the conveying direction X. The first conveying mechanism 40 also extends at least partially into the heating mechanism 80. Optionally, a second heating element 81 is provided on the inner wall of the heating mechanism 80. The number of second heating elements 81 is not limited, and the second heating elements 81 include, but are not limited to, electric heating elements. When the first conveying mechanism 40 carries the glass plate 100 into the heating mechanism 80, the heating mechanism 80 heats the glass plate 100, causing the glass plate 100 to reach a preset temperature, thereby softening the glass plate 100. The first conveying mechanism 40 is used to convey the glass plate 100, after being heated by the heating mechanism 80, into the forming furnace body 70.

[0090] After the glass plate 100 is pressed into shape by the forming furnace 70, it needs to undergo annealing and cooling treatments sequentially due to its high temperature. Therefore, based on the aforementioned embodiment, the glass forming apparatus further includes an annealing mechanism 91 and a cooling mechanism 92. The forming furnace 70, annealing mechanism 91, and cooling mechanism 92 are arranged sequentially along the conveying direction X. The annealing mechanism 91 is located in the annealing zone 93, and the cooling mechanism 92 is located in the cooling zone 94. The second conveying mechanism 50 allows the pressed glass plate 100 to be moved sequentially to the annealing zone 93 and the cooling zone 94. The annealing mechanism 91 is used to anneal the glass plate 100 that has moved to the annealing zone 93, and the cooling mechanism 92 is used to further cool the annealed glass plate 100 that has moved to the cooling zone 94.

[0091] Optionally, the annealing mechanism 91 may include, but is not limited to, an annealing fan 911. The annealing fan 911 is arranged below the second conveying mechanism 50, and the annealing fan 911 performs annealing treatment on the glass plate 100 by blowing on the glass plate 100 on the second conveying mechanism 50.

[0092] Optionally, the cooling mechanism 92 includes, but is not limited to, a cooling fan 921. The cooling fan 921 can be one, two, or other quantities, and is not limited herein. In this embodiment, two cooling fans 921 are provided, located above and below the second conveying mechanism 50, respectively. The cooling fan 921 on the upper side blows air downwards onto the glass plate 100, and the cooling fan 921 on the lower side blows air upwards onto the glass plate 100, thereby rapidly reducing the temperature of the glass plate 100.

[0093] Please see Figures 1 to 4 In some embodiments, the glass forming apparatus further includes an adsorption mechanism 95, an annealing ring 96, and a sheet removal arm 97. The adsorption mechanism 95 is located in the annealing zone 93, above the second conveying mechanism 50, and can be used to adsorb and fix the glass plate 100 located in the annealing zone 93 or to release the glass plate 100. Optionally, the adsorption mechanism 95 may include, but is not limited to, a vacuum hood, which has a third mold surface adapted to the pressed glass plate 100. The adsorption mechanism 95 adheres to the glass plate 100 through the third mold surface and can adsorb and fix the glass plate 100. The lower mold 20, the annealing ring 96, and the sheet removal arm 97 are sequentially arranged in the second conveying mechanism 50 along the conveying direction X. The second conveying mechanism 50 can switch between the first position and the second position. When the second conveying mechanism 50 is in the first position, the lower mold 20 is in the first forming area 71, the annealing ring 96 is in the second forming area 72, and the unloading arm 97 is in the annealing area 93. When the second conveying mechanism 50 is in the second position, the lower mold 20 is in the second forming area 72, the annealing ring 96 is in the annealing area 93, and the unloading arm 97 is in the cooling area 94.

[0094] Therefore, when the second conveying mechanism 50 is in the first position, the lower mold 20 is located in the first forming zone 71, and the first upper mold 10 can release the pre-pressed glass plate 100. The lower mold 20 then receives and supports the glass plate 100 released by the first upper mold 10. Simultaneously, the annealing ring 96 is located in the second forming zone 72, and the second upper mold 30 can release the pressed glass plate 100. The annealing ring 96 then receives and supports the glass plate 100 released by the second upper mold 30. The unloading arm 97 is located in the annealing zone 93, and the adsorption mechanism 95 can release the annealed glass plate 100. The unloading arm 97 then receives and supports the glass plate 100 released by the adsorption mechanism 95.

[0095] When the second conveying mechanism 50 is in the second position, the lower mold 20 is located in the second forming area 72. The second upper mold 30 and the lower mold 20 perform the pressing and forming step of the glass plate 100 in the second forming area 72. After the glass plate 100 is pressed and formed, the second upper mold 30 adsorbs and drives the pressed and formed glass plate 100 upward, so that the glass plate 100 is removed from the lower mold 20. At the same time, the annealing ring 96 and the glass plate 100 on it are located in the annealing area 93. The annealing mechanism 91 performs annealing operation on the glass plate 100 on the annealing ring 96. After the annealing of the glass plate 100 on the annealing ring 96 is completed, the adsorption mechanism 95 moves up and down to adhere to, adsorb and fix the annealed glass plate 100, and drives the glass plate 100 upward, so that the annealed glass plate 100 is removed from the annealing ring 96. The unloading arm 97 is located in the cooling zone 94. The cooling mechanism 92 cools the glass plate 100 on the unloading arm 97 and then transfers the glass plate 100 on the unloading arm 97 to the next process.

[0096] Therefore, by switching back and forth between the first position and the second position, the second conveying mechanism 50 can drive the lower mold 20, the annealing ring 96 and the unloading arm 97 to move and adjust their positions along the conveying direction X. This allows the various components, such as the first upper mold 10, the second upper mold 30, the lower mold 20, the adsorption mechanism 95, the annealing mechanism 91, the cooling mechanism 92, the annealing ring 96 and the unloading arm 97, to work in coordination with each other. This enables the glass plate 100 to complete the pre-forming, secondary pressing, annealing and cooling processes in sequence, resulting in high working efficiency.

[0097] Please see Figures 1 to 4 In some embodiments, this application also provides a glass forming method, which employs the glass forming apparatus of any of the above embodiments, and the method includes the following steps:

[0098] Step S100: The softened glass plate 100 is received through the first upper mold 10, and the first mold surface 11 is attached to the softened glass plate 100 so that the glass plate 100 is pre-pressed and formed.

[0099] In step S200, the lower mold 20 receives the pre-pressed glass plate 100 and carries and adsorbs the glass plate 100 through the second mold surface 21, so that the glass plate 100 initially adheres to the second mold surface 21 under the adsorption force of the second mold surface 21 and its own gravity.

[0100] In step S300, the position of one of the second upper mold 30 and the lower mold 20 is adjusted so that the second upper mold 30 presses against the edge of the glass plate 100 away from the second mold surface 21 through the pressing part 32, and the second mold surface 21 holds the glass plate 100 in place so that the glass plate 100 and the second mold surface 21 are completely in contact.

[0101] In the glass forming method described above, during the pressing and forming process of the glass plate 100, the softened glass plate 100 is first bonded to the first mold surface 11 of the first upper mold 10, thus pre-pressing the glass plate 100. Then, the pre-pressed glass plate 100 is placed on the second mold surface 21 of the lower mold 20, and the glass plate 100 initially adheres to the second mold surface 21 under its own weight and the adsorption effect of the second mold surface 21. The pressing part 32 presses against the edge of the glass plate 100, and further adsorbs the glass plate 100 onto the second mold surface 21, so that the glass plate 100 and the second mold surface 21 are tightly bonded and pressed into shape. It can be seen that the adsorption force of the second mold surface 21 is in the same direction as the gravity of the glass plate 100, which facilitates the complete adhesion of the glass plate 100 to the second mold surface 21, resulting in a good fit and ensuring the forming quality. Furthermore, during the process of pressing and forming the glass plate 100 by the lower mold 20 and the second upper mold 30, the avoidance recess 31 can avoid the glass plate 100, thus avoiding the forming quality problem of the glass plate 100 caused by the expansion degree of the second upper mold 30 after being heated and being different from the expansion degree of the second mold surface 21 of the lower mold 20, thereby further improving the forming quality of the glass plate 100.

[0102] Based on the aforementioned embodiments, before the step of receiving the softened glass plate 100 through the first upper mold 10, the method further includes: heating the glass plate 100 to a first preset temperature to soften the glass plate 100.

[0103] Based on the aforementioned embodiments, the step of receiving the softened glass plate 100 through the first upper mold 10 includes: when the softened glass plate 100 is conveyed to the first forming area 71 via the first conveying mechanism 40, the glass plate 100 on the first conveying mechanism 40 is blown upward by a jet of air, causing the glass plate 100 to adhere to the first mold surface 11; when the glass plate 100 adheres to the first mold surface 11, the first mold surface 11 adsorbs the glass plate 100, keeping the glass plate 100 adhered to the first mold surface 11. Thus, under the adsorption and fixing effect of the first mold surface 11, the pre-pressing forming of the glass plate 100 can be achieved.

[0104] For example, after the first mold surface 11 adsorbs the glass plate 100, the airflow to the glass plate 100 is stopped, and the glass plate 100 is made to adhere to the first mold surface 11 by means of the adsorption force of the first mold surface 11.

[0105] Based on the aforementioned embodiments, the step of the lower mold 20 receiving the pre-pressed glass plate 100 includes: moving the lower mold 20 to the first forming area 71, and the first mold surface 11 stopping adsorbing the glass plate 100, so that the glass plate 100 falls onto the second mold surface 21 under its own gravity. Thus, when the glass plate 100 is above the second mold surface 21, the glass plate 100 can gradually adhere to the second mold surface 21 under the action of its own gravity and the adsorption force of the second mold surface 21.

[0106] Based on the aforementioned embodiments, after the step of making the glass plate 100 completely bonded to the second mold surface 21, the method further includes: conveying the pressed glass plate 100 to the annealing zone 93 for annealing treatment; and conveying the annealed glass plate 100 to the cooling zone 94 for cooling treatment.

[0107] It should be noted that, in this application, if an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "upper," "lower," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0108] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0109] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A glass forming apparatus, characterized in that, include: The first upper mold has a first mold surface at its bottom, which is used to fit the softened glass plate so that the glass plate is pre-pressed and formed. The lower mold has a second mold surface on its top, which is used to fit the pre-pressed glass plate and can adsorb the glass plate; and The second upper mold has a relief recess at its bottom and a pressing part arranged circumferentially around the relief recess; the second upper mold and the lower mold cooperate with each other, and when the second mold surface is attached to the glass plate, the pressing part is used to press against the edge of the glass plate away from the second mold surface.

2. The glass forming apparatus according to claim 1, characterized in that, The ratio of the curvature of the first mold surface to the curvature of the second mold surface is K, where 20% ≤ K ≤ 60%.

3. The glass forming apparatus according to claim 2, characterized in that, The ratio of the curvature of the first mold surface along the first direction to the curvature of the second mold surface along the first direction is K1, and the ratio of the curvature of the first mold surface along the second direction to the curvature of the second mold surface along the second direction is K2, 20%≤K1≤40%, 30%≤K2≤60%, wherein the first direction is the arrangement direction of the two opposite long sides of the glass plate, and the second direction is the arrangement direction of the two opposite short sides of the glass plate.

4. The glass forming apparatus according to claim 1, characterized in that, The distance between the inner and outer edges of the pressing surface of the pressing part is W, where 3mm ≤ W ≤ 30mm; and / or, the pressing surface of the pressing part matches the second mold surface.

5. The glass forming apparatus according to claim 1, characterized in that, The vertical distance between the recessed surface of the avoidance recess and the pressing surface of the pressing part is 10mm to 80mm.

6. The glass forming apparatus according to claim 1, characterized in that, The glass forming apparatus also satisfies at least one of the following conditions: (1) The first upper mold is provided with a first adsorption hole and a first negative pressure chamber. The first adsorption hole extends to the first mold surface. The first negative pressure chamber is connected to the first adsorption hole, and the first negative pressure chamber is also used to connect with a vacuum device. (2) The lower mold is provided with a second adsorption hole and a second negative pressure chamber. The second adsorption hole extends to the second mold surface. The second negative pressure chamber is connected to the second adsorption hole. The second negative pressure chamber is also used to connect with a vacuum device. (3) The second upper mold is provided with a third adsorption hole and a third negative pressure chamber. The third adsorption hole extends to at least one of the inner wall of the avoidance recess and the pressing surface of the pressing part. The third negative pressure chamber is connected to the third adsorption hole and is also used to connect to a vacuum device.

7. The glass forming apparatus according to claim 6, characterized in that, The first mold surface includes a first area and a second area, the first area and the second area are connected, the first area is correspondingly disposed with the HUD area on the glass plate, and the second area is correspondingly disposed with the area outside the HUD area on the glass plate, the ratio of the density of the first adsorption holes on the first area to the density of the first adsorption holes on the second area is 1.5~2; and / or, The second mold surface includes a third region and a fourth region. The third region is connected to the fourth region. The third region is correspondingly set with the HUD area on the glass plate. The fourth region is correspondingly set with the area outside the HUD area on the glass plate. The ratio of the density of the second adsorption holes arranged on the third region to the density of the second adsorption holes arranged on the fourth region is 1.5 to 2.

8. The glass forming apparatus according to claim 1, characterized in that, The glass forming apparatus further includes a first conveying mechanism and a second conveying mechanism; The first conveying mechanism is used to carry the glass plate and can convey the glass plate to the first forming area. The first upper mold is vertically and vertically disposed in the first forming area. The second upper mold is vertically and vertically disposed in the second forming area, and the first forming area and the second forming area are arranged along the conveying direction of the second conveying mechanism; The second conveying mechanism is connected to the lower mold, and the second conveying mechanism can carry the lower mold and drive the lower mold to switch positions between the first forming area and the second forming area.

9. The glass forming apparatus according to claim 8, characterized in that, The first conveying mechanism includes multiple conveying rollers, all of which are arranged sequentially at intervals along the conveying direction; the distance between adjacent conveying rollers is 80mm~150mm.

10. The glass forming apparatus according to claim 8, characterized in that, The glass forming apparatus further includes a blowing mechanism located in the first forming area. The blowing mechanism is used to provide jet airflow to blow up the glass plate on the first conveying mechanism and adhere it to the first mold surface.

11. The glass forming apparatus according to claim 10, characterized in that, The blowing mechanism is provided with multiple blowing holes, which are distributed according to the shape and size of the glass plate. The blowing mechanism is located below the first conveying mechanism, and the blowing holes are distributed in the interval area between two adjacent conveying rollers of the first conveying mechanism.

12. The glass forming apparatus according to claim 10, characterized in that, The glass forming apparatus further includes a forming furnace body, which forms a first forming area and a second forming area. The first upper mold and the second upper mold are each vertically and vertically disposed within the forming furnace body. The blowing mechanism is disposed within the forming furnace body, and the first conveying mechanism extends at least partially into the forming furnace body, and the second conveying mechanism extends at least partially into the forming furnace body.

13. The glass forming apparatus according to claim 12, characterized in that, The glass forming apparatus further includes a heating mechanism, which is arranged sequentially with the forming furnace body along the conveying direction. The first conveying mechanism extends at least partially into the heating mechanism. The heating mechanism is used to heat the glass plate to soften it. The first conveying mechanism is used to transport the glass plate heated by the heating mechanism into the forming furnace body.

14. The glass forming apparatus according to claim 12, characterized in that, The glass forming apparatus further includes an annealing mechanism and a cooling mechanism. The forming furnace, the annealing mechanism, and the cooling mechanism are arranged sequentially along the conveying direction. The annealing mechanism is located in the annealing zone, and the cooling mechanism is located in the cooling zone. The second conveying mechanism enables the pressed glass plate to move to the annealing zone and the cooling zone. The annealing mechanism is used to anneal the glass plate that has moved to the annealing zone, and the cooling mechanism is used to cool the annealed glass plate that has moved to the cooling zone.

15. The glass forming apparatus according to claim 14, characterized in that, The glass forming apparatus further includes an adsorption mechanism, an annealing ring, and a sheet removal arm; the adsorption mechanism is located in the annealing zone and above the second conveying mechanism, and the adsorption mechanism can be used to adsorb and fix the glass plate located in the annealing zone or to release the glass plate; the lower mold, the annealing ring, and the sheet removal arm are sequentially arranged in the second conveying mechanism along the conveying direction; when the second conveying mechanism is in the first position, the lower mold is located in the first forming zone, the annealing ring is located in the second forming zone, and the sheet removal arm is located in the annealing zone; when the second conveying mechanism is in the second position, the lower mold is located in the second forming zone, the annealing ring is located in the annealing zone, and the sheet removal arm is located in the cooling zone.

16. The glass forming apparatus according to any one of claims 1 to 15, characterized in that, The first die surface is a downwardly protruding punch surface, and the second die surface is a downwardly recessed die surface.

17. A glass forming method, characterized in that, The method, employing the glass forming apparatus as described in any one of claims 1 to 16, comprises the following steps: The softened glass plate is received by the first upper mold, and the first mold surface is attached to the softened glass plate, so that the glass plate is pre-pressed and formed. The lower mold receives the pre-pressed glass plate and carries and adsorbs the glass plate through the second mold surface, so that the glass plate initially adheres to the second mold surface under the adsorption force of the second mold surface and its own gravity. The position of one of the second upper mold and the lower mold is adjusted such that the second upper mold presses against the edge of the glass plate away from the second mold surface through the pressing part, and the second mold surface remains attached to the glass plate so that the glass plate is completely in contact with the second mold surface.

18. The glass forming method according to claim 17, characterized in that, Before the step of receiving the softened glass plate through the first upper mold, the method further includes: heating the glass plate to a first preset temperature to soften the glass plate; The step of receiving the softened glass plate through the first upper mold includes: when the softened glass plate is conveyed to the first forming area by the first conveying mechanism, the glass plate on the first conveying mechanism is blown upward by the jet airflow, so that the glass plate is attached to the first mold surface; when the glass plate is attached to the first mold surface, the first mold surface adsorbs the glass plate, so that the glass plate remains attached to the first mold surface. The step of receiving the pre-pressed glass plate by the lower mold includes: moving the lower mold to the first forming area, the first mold surface stopping adsorbing the glass plate, so that the glass plate falls to the second mold surface under its own gravity; After the step of making the glass plate fully bonded to the second mold surface, the method further includes: conveying the pressed glass plate to an annealing zone for annealing treatment; and conveying the annealed glass plate to a cooling zone for cooling treatment.

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