Transfer device, use thereof and glass bending system

Abstract

This application provides a transfer device and its application, as well as a glass bending and forming system. The transfer device includes an adsorption stage, which comprises a first edge region and a second edge region, with the first edge region surrounding the second edge region. The adsorption stage is provided with a first adsorption groove, a plurality of second adsorption holes, a first adsorption channel, and a second adsorption channel. The first adsorption groove is located in the first edge region, and the plurality of second adsorption holes are located in the second edge region. The first adsorption channel communicates with the first adsorption groove and is used to provide a first negative pressure. The second adsorption channel communicates with the plurality of second adsorption holes and is used to provide a second negative pressure. The first negative pressure and the second negative pressure are used to adsorb at least one glass plate onto the transfer device. When using this transfer device to transfer glass plates, it can ensure that the glass plates do not fall and maintain the optical quality of the glass plates. Furthermore, when used in the glass bending and forming process, it can improve the yield rate of the bent and formed glass plates.

Description

Technical Field

[0001] This application relates to the field of transfer tool technology, and in particular to a transfer device for transferring glass plates and its use, as well as a glass bending system for bending glass plates. Background Technology

[0002] As the surface curvature design of automotive windshields becomes increasingly complex and the quality requirements for automotive glass become increasingly stringent, the bending and forming process of automotive glass requires multiple forming operations, and sometimes multiple glass sheets need to be formed simultaneously. For example, after multiple glass sheets are initially bent and formed through a pre-forming mold, they are transferred together to the final forming mold to complete the final bending and forming. Finally, the multiple glass sheets that have undergone final bending and forming are transferred to an annealing ring to complete annealing and cooling.

[0003] During the transfer of multiple glass plates, the transfer device needs to provide sufficient suction to lift and hold them together for a sufficient period of time to facilitate the transfer and switching of multiple glass plates at different workstations. If the suction provided by the transfer device is insufficient, the multiple glass plates are prone to falling during the transfer process, especially during acceleration or deceleration phases, affecting production stability and reducing production efficiency. If the suction provided by the transfer device is too strong, the multiple glass plates will be pressed against each other due to excessive adhesion, which can easily cause optical quality problems such as optical distortion, reducing the yield of glass plate bending and forming.

[0004] In addition, before bending, multiple flat glass sheets can be transferred to the bending mold by a transfer device for stacking; after bending, multiple bent glass sheets can be transferred from the bending mold by a transfer device, or multiple bent glass sheets can be stacked and transferred to the loading table of the glass washing machine for cleaning. Summary of the Invention

[0005] The purpose of this application is to provide a transfer device and its application, as well as a glass bending and forming system. When the glass plate is transferred using the transfer device, it can ensure that the glass plate does not fall and can guarantee the optical quality of the glass plate. At the same time, when the transfer device is used in the glass plate bending and forming process, it can also improve the yield of the glass plate bending and forming.

[0006] This application provides a transfer device, which includes an adsorption stage. The adsorption stage includes a first edge region and a second edge region, and the first edge region is disposed around the second edge region.

[0007] The adsorption stage is provided with a first adsorption tank, multiple second adsorption holes, a first adsorption channel and a second adsorption channel. The first adsorption tank is located in a first edge region, and the multiple second adsorption holes are located in a second edge region. The first adsorption channel is connected to the first adsorption tank and is used to provide a first negative pressure. The second adsorption channel is connected to the multiple second adsorption holes and is used to provide a second negative pressure. The first negative pressure and the second negative pressure are used to adsorb at least one glass plate onto the transfer device.

[0008] The adsorption stage also includes a central region, and a second edge region is arranged around the central region;

[0009] The adsorption stage is also provided with multiple third adsorption holes and a third adsorption channel. The multiple third adsorption holes are located in the central area, and the third adsorption channel is connected to the multiple third adsorption holes and is used to provide a third negative pressure. The first negative pressure, the second negative pressure and the third negative pressure are used to adsorb at least one glass plate onto the transfer device.

[0010] The vacuum pressure value of the first negative pressure is P1, and the vacuum pressure value of the second negative pressure is P2, where P2 is greater than P1.

[0011] The vacuum pressure value of the third negative pressure is P3, where P2 is greater than P3.

[0012] The glass plate is a bent glass plate with a temperature greater than or equal to 500℃.

[0013] In this process, at least two stacked glass plates are adsorbed onto a transfer device, with silicon powder particles placed between adjacent glass plates.

[0014] The central area is equipped with a recessed groove, and multiple third adsorption holes are distributed at the bottom of the recessed groove.

[0015] The cross-sectional area of ​​the second adsorption pore is larger than that of the third adsorption pore.

[0016] Among them, multiple third adsorption pores are arranged in an array, and the number of rows and columns of the array is greater than 1.

[0017] The first adsorption tank includes an inner tank wall and an outer tank wall. The inner tank wall is closer to the second edge region than the outer tank wall and extends in a direction away from the first adsorption tank towards the first adsorption channel. The outer tank wall protrudes relative to the inner tank wall.

[0018] The height of the outer tank wall protruding relative to the inner tank wall is greater than or equal to the thickness of the glass plate closest to the adsorption stage.

[0019] The height of the outer wall protruding relative to the inner wall is less than or equal to the total thickness of all glass plates.

[0020] The bottom of the first adsorption tank is provided with multiple first connecting holes, and the first adsorption channel is connected to the first adsorption tank through the multiple first connecting holes.

[0021] The cross-sectional area of ​​the first connecting hole is larger than the cross-sectional area of ​​the second adsorption hole.

[0022] The adsorption platform is provided with a first protrusion and a second protrusion. The first adsorption groove is formed between the first protrusion and the second protrusion. The second protrusion is located outside the first adsorption groove and extends in a direction away from the first adsorption groove toward the first adsorption channel. The second protrusion protrudes relative to the first protrusion.

[0023] The first protrusion has an adsorption contact surface, and multiple second adsorption holes penetrate the adsorption contact surface of the first protrusion.

[0024] The first protrusion is covered with a flexible liner, which is used to isolate the adsorption contact surface from the glass plate.

[0025] Among them, the cross-sectional areas of the multiple second adsorption pores are not exactly the same, and / or the multiple second adsorption pores are unevenly distributed in the second edge region.

[0026] The transfer device also includes a vacuum suction device, which is connected to the first adsorption channel to provide a first negative pressure, the vacuum suction device is connected to the second adsorption channel to provide a second negative pressure, and the vacuum suction device is connected to the third adsorption channel to provide a third negative pressure.

[0027] This application also provides a use of a transfer device, which is the transfer device described above. The transfer device is used to transfer multiple flat glass sheets onto a bending forming mold for stacking, or to transfer multiple bent glass sheets that have completed bending forming from the bending forming mold, or to stack multiple bent glass sheets that have completed bending forming and transfer them to the loading table of a glass washing machine for cleaning.

[0028] This application also provides a glass bending forming system, including the transfer device as described above. The glass bending forming system further includes a heating device, a pre-forming mold, a final forming mold, and an annealing device.

[0029] A heating device for heating at least one glass plate to a temperature greater than or equal to 500°C;

[0030] A preforming mold is used to pre-bend at least one glass plate with a temperature greater than or equal to 500°C to obtain at least one pre-bent glass plate with a temperature greater than or equal to 500°C.

[0031] A final forming mold is used to perform final bending forming on at least one glass plate that has been initially bent at a temperature greater than or equal to 500°C, to obtain at least one glass plate that has been finally bent at a temperature greater than or equal to 500°C.

[0032] A transfer device for transferring a pre-bent glass plate from a pre-forming mold to a final forming mold, and for transferring a final-bent glass plate from the final forming mold to a pre-forming mold or an annealing ring;

[0033] Annealing apparatus for annealing and cooling at least one ultimately bent glass plate at a temperature greater than or equal to 500°C.

[0034] This application provides a transfer device that utilizes a first adsorption groove located at the first edge region of the adsorption stage to generate a first negative pressure, thereby adsorbing the side of a glass plate. A second adsorption hole located at the second edge region of the adsorption stage generates a second negative pressure, thereby adsorbing the main surface of the glass plate. This application uses both the first and second negative pressures to ensure that at least one glass plate is adsorbed onto the transfer device, preventing the glass plate from falling off. Simultaneously, by independently controlling the vacuum pressure values ​​of the first and second negative pressures, the transfer effect of the glass plates is ensured while preventing excessive compression between the glass plates, thus guaranteeing the optical quality of the glass plates. Using the transfer device provided in this application during the bending and shaping process of the glass plate can improve the yield rate of the bent and shaped glass plate.

[0035] It is understood that the function of the transfer device is not limited to this. It can also be used to transfer multiple flat glass sheets onto a bending forming mold for stacking, or to transfer multiple bent glass sheets from the bending forming mold for unloading, or to stack multiple bent glass sheets and transfer them simultaneously to the loading table of a glass washing machine for cleaning. This application utilizes a first negative pressure, a second negative pressure, and a third negative pressure to ensure that at least one flat glass sheet is adsorbed onto the transfer device and transferred onto the bending forming mold for stacking, or to ensure that at least one bent glass sheet is adsorbed from the bending forming mold onto the transfer device and transferred to the unloading station, or to ensure that at least one bent glass sheet is adsorbed onto the transfer device and transferred to the loading table of a glass washing machine for cleaning, thus ensuring that the glass sheets do not fall during the transfer process. Meanwhile, by independently controlling the vacuum pressure values ​​of the first negative pressure, the second negative pressure, and the third negative pressure, while ensuring the glass plate transfer effect, more and / or heavier stacked glass plates can be transferred, and a greater moving speed and acceleration can be achieved during transfer, thereby improving transfer efficiency. Attached Figure Description

[0036] Figure 1 This is a schematic diagram illustrating part of the process of preparing a curved glass plate using the glass bending forming system provided in the embodiments of this application;

[0037] Figure 2 for Figure 1 The diagram shows a structural schematic of a glass bending and forming system that uses a transfer device to transfer glass plates.

[0038] Figure 3 for Figure 2 A top view of the glass plate in the structure shown;

[0039] Figure 4 for Figure 2 A schematic cross-sectional view of the adsorption stage of the transfer device in the structure shown.

[0040] Figure 5 for Figure 4 A schematic diagram of the adsorption stage from below.

[0041] Figure 6 for Figure 4 A top view of the adsorption stage shown.

[0042] Figure 7 for Figure 4 A magnified view of part A in the adsorption stage shown;

[0043] Figure 8 for Figure 4 A magnified view of part B in the adsorption stage shown.

[0044] Figure 9 for Figure 4 A magnified view of part C in the adsorption stage shown. Detailed Implementation

[0045] The contents of this application will be further explained below with reference to the accompanying drawings.

[0046] See Figure 1 , Figure 1 A schematic diagram of part of the process of preparing a curved glass plate using the glass bending forming system provided in the embodiments of this application is shown.

[0047] The glass bending system includes a heating device (not shown), a transfer device 1000, a pre-forming mold 2000a, a final forming mold 2000b, and an annealing device (not shown). The heating device is used to heat at least one glass plate 300 to a temperature greater than or equal to 500°C. In some embodiments, the heating device can be a furnace, which heats at least one glass plate through radiation heating, convection heating, or other methods to raise the temperature of the glass plate to greater than or equal to 500°C for subsequent bending. When heating at least two stacked glass plates, silica powder particles are placed between adjacent glass plates to prevent them from sticking together.

[0048] The preforming mold 2000a is used to perform preliminary bending forming on at least one glass plate with a temperature greater than or equal to 500°C to obtain a pre-bent glass plate 300 with a temperature greater than or equal to 500°C. In some embodiments, the preforming mold 2000a is an annular die with a concave surface. At least one glass plate with a temperature greater than or equal to 500°C is subjected to preliminary bending forming on the annular die under the action of gravity. After the preliminary bending forming is completed, a pre-bent glass plate 300 with a temperature greater than or equal to 500°C is obtained.

[0049] The final forming mold 2000b is used to perform final bending forming on the initially bent glass plate 300 at a temperature greater than or equal to 500°C, resulting in a final bent glass plate 300 at a temperature greater than or equal to 500°C. In some embodiments, the final forming mold 2000b can perform final bending forming on the initially bent glass plate at a temperature greater than or equal to 500°C using pressure generated by blowing and / or suction, resulting in a final bent glass plate 300 at a temperature greater than or equal to 500°C. The final forming mold 2000b can be a concave bottom mold, such as the automotive glass bending forming apparatus disclosed in patents CN112047616A and CN112194348A.

[0050] The transfer device 1000 is used to transfer the initially bent glass plate 300 from the pre-forming mold 2000a to the final forming mold 2000b, and to transfer the finally bent glass plate 300 from the final forming mold 2000b to the pre-forming mold 2000a or the annealing ring.

[0051] The annealing apparatus is used to anneal and cool a glass plate 300 that has been bent to a temperature greater than or equal to 500°C.

[0052] In one specific embodiment, the process of preparing a curved glass plate using the above-described glass bending forming system is as follows:

[0053] (1) Use a heating device to heat at least one glass plate 300 to a temperature greater than or equal to 500°C;

[0054] (2) Place the heated glass plate 300 from step (1) into the pre-forming mold 2000a and perform preliminary bending to obtain a pre-bent glass plate 300 with a temperature greater than or equal to 500℃.

[0055] (3) Using the transfer device 1000, the pre-bent glass plate 300 prepared in step (2) is transferred from the pre-forming mold 2000a to the final forming mold 2000b. The final forming mold 2000b performs final bending forming on the pre-bent glass plate 300 to obtain a final bent glass plate 300 with a temperature greater than or equal to 500℃.

[0056] (4) After the final bending is completed, the glass plate 300 prepared in step (3) is transferred from the final forming mold 2000b to the preforming mold 2000a or the annealing ring using the transfer device 1000. The glass plate 300 is then transferred into the annealing device along with the preforming mold 2000a or the annealing ring. The annealing device anneals and cools the glass plate 300.

[0057] In another specific embodiment, the process of preparing a curved glass plate using the above-described glass bending system is as follows:

[0058] (1) Place at least one glass plate 300 into the preforming mold 2000a;

[0059] (2) The glass plate 300 in the preforming mold 2000a is heated to a temperature greater than or equal to 500°C using a heating device. The glass plate 300 with a temperature greater than or equal to 500°C is initially bent in the preforming mold 2000a to obtain a glass plate 300 with a temperature greater than or equal to 500°C.

[0060] (3) Using the transfer device 1000, the pre-bent glass plate 300 prepared in step (2) is transferred from the pre-forming mold 2000a to the final forming mold 2000b. The final forming mold 2000b performs final bending forming on the pre-bent glass plate 300 to obtain a final bent glass plate 300 with a temperature greater than or equal to 500℃.

[0061] (4) After the final bending is completed, the glass plate 300 prepared in step (3) is transferred from the final forming mold 2000b to the preforming mold 2000a or the annealing ring using the transfer device 1000. The glass plate 300 is then transferred into the annealing device along with the preforming mold 2000a or the annealing ring. The annealing device anneals and cools the glass plate 300.

[0062] The glass bending system provided in this application uses a pre-forming mold 2000a to initially bend a heated glass plate 300. Then, a transfer device 1000 transfers the initially bent glass plate 300 to a final forming mold 2000b for final bending. During the transfer process, the glass plate 300 is prevented from falling and optical distortion is avoided, improving the optical quality of the final bent glass plate 300 and thus increasing the yield rate of the bent glass plate 300. It is understood that the function of the transfer device 1000 is not limited to this; it can also be used to transfer multiple flat glass plates onto the bending mold for stacking, or to remove multiple bent glass plates from the bending mold, or to stack and simultaneously transfer multiple bent glass plates to the loading table of a glass washing machine for cleaning.

[0063] See Figure 2 , Figure 2 It shows Figure 1 The diagram shows a glass bending and forming system in which a transfer device 1000 transfers a glass plate 300.

[0064] The transfer device 1000 includes an adsorption stage 100 and a vacuum suction device 200. The vacuum suction device 200 is connected to the adsorption channel of the adsorption stage 100 via a connecting pipe to provide negative pressure to at least one glass plate 300 by evacuating air. The adsorption stage 100 can use the negative pressure to adsorb at least one glass plate 300 and transfer it, thereby transferring at least one glass plate 300 from a first position to a second position. It is understood that in other embodiments, the transfer device 1000 may also include a driving device connected to the adsorption stage 100 for driving the adsorption stage 100 to move, thereby moving at least one glass plate 300 adsorbed on the adsorption stage 100. Examples of driving devices include motors.

[0065] In this application, the transfer device 1000 is used to transfer a glass plate 300 with a certain temperature and a certain curvature. Specifically, in this embodiment, the glass plate 300 transferred by the transfer device 1000 is a curved glass plate with a temperature greater than or equal to 500°C, and the curved glass plate has a concave surface and a convex surface. When transferring a curved glass plate using the transfer device 1000, the concave surface of the curved glass plate faces the adsorption stage 100. The transfer device 1000 draws air between the curved glass plate and the adsorption stage 100 to perform vacuum adsorption, so that the curved glass plate is firmly adsorbed on the transfer device 1000. When transferring at least two stacked curved glass plates using the transfer device 1000, such as two, three, or four plates, the transfer device 1000 draws air from the front between the curved glass plate closest to the adsorption stage 100 and the adsorption stage 100 for vacuum adsorption, and draws air from the side between two adjacent curved glass plates for vacuum adsorption, so that at least two stacked curved glass plates are firmly adsorbed onto the transfer device 1000.

[0066] In this embodiment, taking the transfer device 1000 transferring two stacked curved glass plates as an example, specifically a first glass plate 310 and a second glass plate 320, silica powder particles (not shown) are typically placed between the first glass plate 310 and the second glass plate 320 to prevent glass adhesion. The thickness of the first glass plate 310 is less than or equal to the thickness of the second glass plate 320. When the first glass plate 310 and the second glass plate 320 are manufactured into laminated glass for use as vehicle window glass, the first glass plate 310 can be used as the inner glass plate facing the inside of the vehicle, and the second glass plate 320 can be used as the outer glass plate facing the outside of the vehicle. It is understood that when the transfer device 1000 transfers three or more stacked curved glass plates, silica powder particles to prevent glass adhesion are placed between adjacent curved glass plates.

[0067] In this embodiment, when the transfer device 1000 transfers the first glass plate 310 and the second glass plate 320, the first glass plate 310 is closer to the adsorption stage 100. The transfer device 1000 performs vacuum adsorption on the first glass plate 310 and the second glass plate 320, drawing air from the concave surface of the first glass plate 310 and the adsorption stage 100 from the front. This ensures that the first glass plate 310 moves towards the target direction during the transfer process and remains in place for a sufficient time without falling off. Simultaneously, an upward airflow is generated around the sides of the first glass plate 310 and the second glass plate 320, carrying away the first glass plate 310 and... The air gap between the second glass plates 320 allows the concave surface of the second glass plate 320 to be firmly adsorbed onto the convex surface of the first glass plate 310. This ensures that the second glass plate 320 can be adsorbed together with the first glass plate 310, and also ensures that the pressure between the first glass plate 310 and the second glass plate 320 is not too great. This prevents the first glass plate 310 and the second glass plate 320 from squeezing each other, which could cause silicon powder particles between the first glass plate 310 and the second glass plate 320 to exceed the optical standards of the product and affect the yield. This avoids the generation of optical distortion and improves the optical quality of the curved glass plate.

[0068] Please see Figure 3 , Figure 3 for Figure 2 A top view of the glass plate 300 in the structure shown.

[0069] The glass plate 300 of this embodiment can be manufactured as laminated glass for use as a windshield in a vehicle. The glass plate 300 has a side surface 301, a first main surface 302, and a second main surface 303, which are disposed opposite to each other. The first main surface 302 facing the transfer device 1000 includes an edge printing area T2 and a transparent area T3, with the transparent area T3 located inside the edge printing area T2. When the glass plate 300 is a curved glass plate, the first main surface 302 facing the transfer device 1000 is concave, and the second main surface 303 facing away from the transfer device 1000 is convex. The edge printing area T2 surrounds the perimeter of the first main surface 302. The edge printing area T2 is typically the area where an opaque ink layer is printed. The opaque ink can be printed on the first glass plate 310 and / or the second glass plate 320, and examples of opaque ink include ceramic ink and ultraviolet ink. The transparent area T3 includes an information acquisition area T31 and a main viewing area T32. The information acquisition area T31 is used to transmit and / or receive light through the information acquisition device. The information acquisition system includes, but is not limited to, lidar, optical sensors, infrared cameras, and visible light cameras. The main viewing area T32 is used by the driver to observe the external scenery and driving environment of the vehicle. A head-up display (HUD) area can also be set in the main viewing area T32 to display HUD images, such as driving speed, dynamic navigation, road safety warnings, and business district information.

[0070] In this embodiment, when the adsorption stage 100 transfers the glass plate 300, the adsorption stage 100 directly contacts and adsorbs the edge area T2 of the glass plate 300 or the position corresponding to the edge area T2. Since the edge area T2 does not need to transmit light and form an image, the adsorption stage 100 can use a large negative pressure to act on the edge area T2 without affecting the optical quality of the glass plate 300.

[0071] Please see Figures 4 to 6 , Figure 4 for Figure 2 A schematic cross-sectional view of the adsorption stage 100 of the transfer device 1000 in the structure shown. Figure 5 for Figure 4 The diagram shows a bottom view of the adsorption stage 100. Figure 6 for Figure 4 The diagram shows a top view of the adsorption stage 100.

[0072] For ease of description, the following is... Figure 4 The direction in which the transfer device 1000 draws air is the X-axis direction. Figure 5 This is a schematic diagram of the planar structure of the adsorption stage 100 as viewed along the positive X-axis. Figure 6 This is a schematic diagram of the planar structure of the adsorption stage 100 when viewed along the negative X-axis.

[0073] The adsorption stage 100 includes a suction end 11 and an adsorption working end 12. The adsorption stage 100 also has adsorption channels inside, connecting the suction end 11 and the adsorption working end 12. Specifically, in this embodiment, there are three adsorption channels: a first adsorption channel Q1, a second adsorption channel Q2, and a third adsorption channel Q3. A vacuum suction device 200 is installed on the suction end 11 and communicates with the adsorption channels. The vacuum suction device 200 draws air through the adsorption channels to generate a negative pressure at the adsorption working end 12. The airflow direction towards the first adsorption channel Q1 is as follows... Figure 4 As shown by the dashed arrow, the airflow direction towards the second adsorption channel Q2 is as follows. Figure 4 As shown by the hollow arrow, the airflow direction towards the third adsorption channel Q3 is as follows. Figure 4 As shown by the solid arrow, the overall trend of airflow towards the first adsorption channel Q1, the second adsorption channel Q2, and the third adsorption channel Q3 is to move along the positive X-axis.

[0074] The adsorption working end 12 includes a first edge region S1, a second edge region S2, and a central region S3, wherein the second edge region S2 is in direct contact with the printing edge region T2 or the position corresponding to the printing edge region T2. ​​The second edge region S2 is located inside the first edge region S1, and the first edge region S1 is arranged around the second edge region S2. The central region S3 is located inside the second edge region S2, and the second edge region S2 is arranged around the central region S3.

[0075] One end of the first adsorption channel Q1 is connected to the vacuum suction device 200, and the other end is connected to the first edge region S1. The vacuum suction device 200 can provide a first negative pressure to the first edge region S1 through the first adsorption channel Q1. One end of the second adsorption channel Q2 is connected to the vacuum suction device 200, and the other end is connected to the second edge region S2. The vacuum suction device 200 can provide a second negative pressure to the second edge region S2 through the second adsorption channel Q2. One end of the third adsorption channel Q3 is connected to the vacuum suction device 200, and the other end is connected to the central region S3. The vacuum suction device 200 can provide a third negative pressure to the central region S3 through the third adsorption channel Q3. The first adsorption channel Q1, the second adsorption channel Q2, and the third adsorption channel Q3 are separated from each other so that the magnitude of the negative pressure generated in the first edge region S1, the second edge region S2, and the central region S3 can be controlled independently. In the adsorption stage 100 of this application embodiment, the second negative pressure and the third negative pressure work together to adsorb the upper surface of the glass plate 300 and maintain the stability of the glass plate 300's shape. The first negative pressure performs vacuum adsorption from the side to remove the air between two adjacent glass plates, so that the glass plate far from the adsorption stage 100 is firmly adsorbed on the lower surface of the glass plate closest to the adsorption stage 100. The first negative pressure cannot be too large to avoid excessive pressure between the multiple glass plates 300, and the third negative pressure cannot be too large to avoid changes in the shape of the glass plate 300. By providing the second negative pressure through the second edge region S2, the vacuum pressure values ​​of the first negative pressure and the third negative pressure can be reduced, so that the optical quality of the multiple glass plates 300 can be guaranteed while the transfer of multiple glass plates 300 is stable.

[0076] In this embodiment of the application, when the adsorption stage 100 is used to transfer multiple glass plates 300, the first negative pressure generated by the first edge region S1 performs vacuum adsorption on the side of the first glass plate 310 and the side of the second glass plate 320, so as to remove the air between the first glass plate 310 and the second glass plate 320. This can adsorb the second glass plate 320 together with the first glass plate 310, and can also avoid excessive squeezing pressure between the first glass plate 310 and the second glass plate 320. The second edge region S2 directly adsorbs and contacts the imprinted edge region T2 or the position corresponding to the imprinted edge region T2 of the first glass plate 310. The resulting second negative pressure adsorbs the imprinted edge region T2 or the position corresponding to the imprinted edge region T2 in the first main surface 302 of the first glass plate 310, thereby lifting the first glass plate 310 and ensuring that the multiple glass plates 300 do not fall off for a sufficiently long time. Furthermore, since the imprinted edge region T2 in the first main surface 302 does not need to transmit light or form an image, the large second negative pressure generated by the second edge region S2 will not affect the optical quality of the glass plate 300. The hole imprint generated by the direct contact between the second edge region S2 and the imprinted edge region T2 or the position corresponding to the imprinted edge region T2 will also not affect the optical quality of the glass plate 300. The third negative pressure generated at the central region S3 adsorbs the transparent region T3 in the first main surface 302 of the first glass plate 310. The third negative pressure and the second negative pressure jointly adsorb the first glass plate 310. Since the temperature of the glass plate 300 is greater than or equal to 500°C, the third negative pressure can keep the center position of the glass plate 300 from sagging due to gravity, thus avoiding the problem of increased surface fluctuation caused by the center position sagging due to gravity. Furthermore, it will not leave adsorption hole marks in the transparent region T3 of the glass plate 300, thereby affecting the optical quality of the glass plate 300.

[0077] It is understood that in other embodiments, the adsorption stage 100 may not include the third adsorption channel Q3, that is, no third negative pressure is generated at the central region S3 in the adsorption working end 12, and only the first negative pressure is generated at the first edge region S1 in the adsorption working end 12 through the first adsorption channel Q1 to draw air between the first glass plate 310 and the second glass plate 320. The second negative pressure is generated at the second edge region S2 in the adsorption working end 12 through the second adsorption channel Q2 to lift the first glass plate 310, thus ensuring the transfer effect of multiple glass plates 300 and preventing excessive compression between the first glass plate 310 and the second glass plate 320.

[0078] In the adsorption stage 100 provided in this application embodiment, the first negative pressure generated at the first edge region S1, the second negative pressure generated at the second edge region S2, and the third negative pressure generated at the center region S3 can be independently controlled. By controlling the vacuum pressure values ​​P1 and P3 of the first negative pressure to be sufficiently small, and the vacuum pressure value P2 of the second negative pressure to be sufficiently large, the adsorption stage 100 can transfer multiple glass plates 300 in a high-temperature state (greater than or equal to 500°C). At the same time, it can ensure that the first glass plate 310 and the second glass plate 320 stacked together will not be squeezed against each other during the transfer process, thus avoiding optical distortion defects in the transparent region T3 of the glass plate 300, thereby ensuring the transfer effect of the glass plate 300 and the optical quality of the glass plate 300.

[0079] Please continue reading. Figure 4 , Figure 5 and Figure 7 , Figure 7 for Figure 4 A magnified view of part A in the adsorption stage 100 shown.

[0080] The adsorption stage 100 is provided with a first adsorption groove 20, multiple first connecting holes 21, a first chamber 22 and a first sealing cover 23.

[0081] In this embodiment, the first adsorption groove 20 is an annular groove, and its opening is located in the first edge region S1 of the adsorption working end 12. Multiple first connecting holes 21 are provided at the bottom of the first adsorption groove 20 and connect the first adsorption groove 20 and the first chamber 22. The opening of the first chamber 22 is located at the suction end 11 and communicates with the first adsorption channel Q1. A first sealing cover 23 is placed on the first chamber 22 to seal the opening of the first chamber 22 (see...). Figure 4 Meanwhile, a portion of the first sealing cover 23 has openings to allow the first chamber 22 to communicate with the first adsorption channel Q1.

[0082] The vacuum suction device 200 draws air from the first edge region S1 through the first adsorption channel Q1 to generate a first negative pressure. Specifically, air is drawn through the first adsorption channel Q1, the first chamber 22, and a plurality of first connecting holes 21, thereby generating a first negative pressure at the first adsorption groove 20 to draw air between the first glass plate 310 and the second glass plate 320. The drawn air flows sequentially along the first adsorption groove 20, the plurality of first connecting holes 21, the first chamber 22, and the first adsorption channel Q1.

[0083] The first adsorption tank 20 includes an inner tank wall 201 and an outer tank wall 202, with the inner tank wall 201 being closer to the second edge region S2 than the outer tank wall 202. Along the direction extending away from the first adsorption tank 20 towards the first adsorption channel Q1, i.e., along the negative X-axis direction, the outer tank wall 202 protrudes relative to the inner tank wall 201. In other words, the distance between the free end (bottom end) of the outer tank wall 202 and the bottom of the first adsorption tank 20 is greater than the distance between the free end (bottom end) of the inner tank wall 201 and the bottom of the first adsorption tank 20. This creates a vacuum adsorption space with a higher outer surface and a lower inner surface on the side of the glass plate 300, which facilitates more stable adsorption of air between multiple glass plates 300. In some specific embodiments, along the negative X-axis, the height by which the outer groove wall 202 protrudes relative to the inner groove wall 201 is greater than or equal to the thickness of the glass plate 300 closest to the adsorption stage 100. This facilitates faster removal of air between the multiple glass plates 300. In this embodiment, the height by which the outer groove wall 202 protrudes relative to the inner groove wall 201 is greater than or equal to the thickness of the first glass plate 310. In some specific embodiments, along the negative X-axis, the height by which the outer groove wall 202 protrudes relative to the inner groove wall 201 is less than or equal to the total thickness of all the glass plates 300. This prevents the outer groove wall 202 from interfering with other forming molds. In this embodiment, the height by which the outer groove wall 202 protrudes relative to the inner groove wall 201 is less than or equal to the total thickness of the first glass plate 310 and the second glass plate 320. In some specific embodiments, along the negative X-axis, the height by which the outer groove wall 202 protrudes relative to the inner groove wall 201 is 2.5 mm to 8 mm.

[0084] The width of the first connecting hole 21 is smaller than the width of the first adsorption groove 20. The first connecting hole 21 has an outer hole wall 211, which is flush with the outer groove wall 202 of the first adsorption groove 20, ensuring the smooth air suction and the stability of transferring multiple glass plates 300.

[0085] Specifically, the adsorption platform 100 is also provided with a first protrusion 31 and a second protrusion 32. The first protrusion 31 and the second protrusion 32 are both located at the adsorption working end 12. The first adsorption groove 20 is formed between the first protrusion 31 and the second protrusion 32. The second protrusion 32 is located outside the first adsorption groove 20. The second protrusion 32 has a protruding surface and two sidewalls connected to the protruding surface. The protruding surface is the bottom end surface of the second protrusion. The sidewall of the second protrusion 32 near the first protrusion 31 is the outer groove wall 202 of the first adsorption groove 20. The first protrusion 31 has an adsorption contact surface 311 and a first sidewall and a second sidewall connected to the adsorption contact surface 311 and arranged opposite to each other. The adsorption contact surface 311 is the bottom end surface of the first protrusion. The first sidewall of the first protrusion 31 is arranged near the second protrusion 32 and serves as the inner groove wall 201 of the first adsorption groove 20. The second sidewall of the first protrusion 31 is arranged away from the second protrusion 32 and is used to enclose the central region S3. The first edge region S1 includes a second protrusion 32 and a first adsorption groove 20. The second protrusion 32 and the first adsorption groove 20 create a first negative pressure on the sides of the multiple glass plates 300, thereby drawing away the air between the glass plates 300. Along the negative X-axis direction, the second protrusion 32 protrudes relative to the first protrusion 31, so that the distance between the free end (bottom) of the outer groove wall 202 and the bottom of the first adsorption groove 20 is greater than the distance between the free end (bottom) of the inner groove wall 201 and the bottom of the first adsorption groove 20. In this embodiment, both the first protrusion 31 and the second protrusion 32 are annular protrusions.

[0086] When multiple glass plates 300 are transferred using the adsorption stage 100, the imprinted edge region T2 or the position corresponding to imprinted edge region T2 in the first main surface 302 contacts the first protrusion 31. The sides 301 of the multiple glass plates are exposed in the first adsorption groove 20. A first negative pressure is generated at the first adsorption groove 20 to draw air between the first glass plate 310 and the second glass plate 320. The drawn air is blocked by the relatively protruding outer groove wall 202, changes its direction of travel, and enters the first connecting hole 21 along the outer groove wall 202. By setting the outer groove wall 202 to protrude relative to the inner groove wall 201, it is beneficial to draw air from the sides 301 of the multiple glass plates 300.

[0087] In this embodiment, the first connecting hole 21 can be a round hole, a triangular hole, a quadrilateral hole, an elongated hole, etc. In some specific embodiments, the first connecting hole 21 is an elongated hole, the length direction of which is parallel to the length direction of the first adsorption groove 20, and the width of the elongated hole is 2mm to 12mm; in other specific embodiments, the width of the elongated hole is 6mm to 8mm.

[0088] In this embodiment, the first protrusion 31 has an adsorption contact surface 311. When multiple glass plates 300 are adsorbed onto the adsorption working end 12 of the adsorption stage 100, the first main surface 302 of the glass plate 300 closest to the adsorption stage 100 directly contacts the adsorption contact surface 311. At this time, the adsorption contact surface 311 directly contacts the printing edge area T2 or the position corresponding to the printing edge area T2 of the first main surface 302. In some embodiments, in order to reduce the friction of the printing edge area T2 or the position corresponding to the printing edge area T2, a flexible molding cloth 30 is covered on the first protrusion 31. The flexible molding cloth 30 is used to isolate the adsorption contact surface 311 and the glass plate 300, avoiding direct contact between the high-temperature glass plate 300 and the adsorption contact surface 311 of the first protrusion 31, so as to protect the first main surface 302 of the glass plate 300 from being scratched. In this embodiment, the flexible molding cloth 30 is woven from high-temperature resistant metal wire, such as stainless steel wire. The flexible fabric 30 has good air permeability and will not interfere with the generation of the first negative pressure, the second negative pressure and the third negative pressure.

[0089] Please continue reading. Figure 4 , Figure 5 and Figure 8 , Figure 8 for Figure 4 A magnified view of part B in the adsorption stage 100 shown.

[0090] The adsorption stage 100 is provided with a plurality of second adsorption holes 40, a second connecting groove 41, and a second sealing cover 42. The bottom of the second connecting groove 41 communicates with the plurality of second adsorption holes 40, so that the plurality of second adsorption holes 40 form a connected channel through the second connecting groove 41. The second sealing cover 42 is placed on the second connecting groove 41 to seal the opening of the second connecting groove 41 (see...). Figure 4 Meanwhile, a portion of the second sealing cover 42 has openings to allow the second adsorption hole 40 to communicate with the second adsorption channel Q2 (see...). Figure 4 and Figure 8 By connecting the opening of the second connecting groove 41 to the second adsorption channel Q2, the multiple second adsorption holes 40 are connected to the second adsorption channel Q2, thereby facilitating the vacuum suction device 200 to suction the air at the multiple second adsorption holes 40 through the second adsorption channel Q2 to generate a second negative pressure.

[0091] The second edge region S2 includes a first protrusion 31 and multiple second adsorption holes 40. The second adsorption holes 40 penetrate the adsorption contact surface 311 of the first protrusion 31. By utilizing the first protrusion 31 and the multiple second adsorption holes 40, a second negative pressure can be formed at the adsorption contact surface 311 of the first protrusion 31, thereby sucking away the air between the first main surface 302 of the glass plate 300 and the adsorption contact surface 311, so that the glass plate 300 is firmly adsorbed on the adsorption contact surface 311. The vacuum suction device 200 sucks air from the second edge region S2 through the second adsorption channel Q2 to generate a second negative pressure. Specifically, a second negative pressure is generated at the multiple second adsorption holes 40 to suck air and adsorb the imprinted edge region T2 of the glass plate 300. The sucked air flows sequentially along the second adsorption holes 40, the second connecting groove 41, and the second adsorption channel Q2.

[0092] Multiple second adsorption holes 40 are distributed on the adsorption contact surface 311 of the first protrusion 31 and around the central region S3. The vacuum suction device 200 draws air from the second edge region S2 through the second adsorption channel Q2 to generate a second negative pressure. Specifically, a second negative pressure is generated at the multiple second adsorption holes 40 to adsorb the imprinted edge region T2 of the first main surface 302 of the glass plate 300 and adsorb the first glass plate 310, so that the concave surface of the first glass plate 300 is in direct contact with the adsorption contact surface 311 or the flexible molding cloth 30. Among them, for glass plates 300 with small edge curvature, the imprinted edge region T2 in the first main surface 302 is easily separated from the second edge region S2 in the adsorption working end 12 of the adsorption stage 100. Furthermore, for multiple glass plates 300 with small edge curvature, the first glass plate 310 and the second glass plate 320 are more likely to separate at the side 301, thereby causing one or more stacked glass plates 300 to detach from the adsorption stage 100. Therefore, for multi-glass plates 300 with small edge curvature, the vacuum pressure value required for the second negative pressure generated at the second edge region S2 is greater.

[0093] When the curvature of the edge region T2 in the first main surface 302 is uneven, the plurality of second adsorption holes 40 used for adsorbing the edge region T2 of the first main surface 302 can be adjusted and arranged according to the curvature of the edge region T2. ​​Specifically, for areas with smaller curvature in the edge region T2, second adsorption holes 40 with larger cross-sectional areas and / or more densely packed second adsorption holes 40 can be set separately to facilitate the generation of a larger vacuum pressure value in areas with smaller local curvature in the edge region T2. ​​That is, the cross-sectional areas of the plurality of second adsorption holes 40 set on the second edge region S2 are not exactly the same, or the distribution of the plurality of second adsorption holes 40 on the second edge region S2 is uneven, which can be changed according to the curvature of the edge region T2 of the first main surface 302. At this time, since the edge region T2 of the first main surface 302 is a non-optical region of the glass plate 300, increasing the vacuum pressure value of this region alone will not have an adverse effect on the optical and surface quality of the glass plate 300.

[0094] Furthermore, the larger the area of ​​the first main surface 302 of the glass plate 300, the larger the required vacuum pressure value P1 of the first negative pressure and the vacuum pressure value P2 of the second negative pressure, and the vacuum pressure value P2 of the second negative pressure is greater than the vacuum pressure value P1 of the first negative pressure, so as to ensure that the generated vacuum suction force is sufficient to overcome the gravity of the multiple glass plates 300.

[0095] Multiple second adsorption holes 40 are formed on the first protrusion 31. When the adsorption stage 100 transfers multiple glass plates 300, the multiple second adsorption holes 40 adsorb onto the imprinted edge region T2 of the first main surface 302 of the glass plate 300 to adsorb the first glass plate 310. Typically, the cross-sectional area of ​​a single second adsorption hole 40 is smaller than the cross-sectional area of ​​a single first connecting hole 21. In some embodiments, the diameter of the second adsorption hole 40 is 2 to 12 mm, for example, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, and 12 mm.

[0096] In this embodiment, a through hole is provided on the flexible fabric 30 at the position corresponding to the second adsorption hole 40, thereby better drawing air at the second adsorption hole 40 to form a second negative pressure. In some embodiments, the diameter of the through hole on the flexible fabric 30 is equal to the diameter of the second adsorption hole 40; in other embodiments, the diameter of the through hole is greater than the diameter of the second adsorption hole 40; in still other embodiments, the diameter of the through hole is smaller than the diameter of the second adsorption hole 40.

[0097] Please continue reading. Figure 4 , Figure 5 and Figure 9 , Figure 9 for Figure 4 A magnified view of part C in the adsorption stage 100 shown.

[0098] The adsorption stage 100 is provided with multiple third adsorption holes 50, a second chamber 51, and a third sealing cover 52. The openings of the multiple third adsorption holes 50 are located in the central region S3 of the adsorption working end 12. The bottom of the second chamber 51 communicates with the multiple third adsorption holes 50. The third sealing cover 52 is placed on the second chamber 51 to seal the opening of the second chamber 51. At the same time, a portion of the third sealing cover 52 has openings to allow the third adsorption holes 50 to communicate with the third adsorption channel Q3 (see...). Figure 4 and Figure 9 By connecting the opening of the second chamber 51 to the third adsorption channel Q3, the multiple third adsorption holes 50 are connected to the third adsorption channel Q3, thereby facilitating the vacuum suction device 200 to suction the air at the multiple third adsorption holes 50 through the third adsorption channel Q3 to generate a third negative pressure.

[0099] The vacuum suction device 200 draws air from the central region S3 through the third adsorption channel Q3 to generate a third negative pressure. Specifically, a third negative pressure is generated at multiple third adsorption holes 50 to adsorb the transparent region T3 of the glass plate 300. The drawn air flows sequentially along the third adsorption holes 50, the second chamber 51 and the third adsorption channel Q3.

[0100] The third adsorption hole 50 is located in the central region S3 enclosed by the second sidewall of the first protrusion 31. The vacuum suction device 200 draws air from the central region S3 through the third adsorption channel Q3, generating a third negative pressure. Specifically, a third negative pressure is generated at the third adsorption hole 50 to assist in adsorbing the transparent region T3 of the first glass plate 310. Compared with the second negative pressure generated in the second edge region S2, the third negative pressure generated in the central region S3 plays an auxiliary role, and the vacuum pressure value P3 of the third negative pressure is less than the vacuum pressure value P2 of the second negative pressure.

[0101] In some embodiments, the diameter of the third adsorption pore 50 is 2–12 mm. In this embodiment, the diameter of the third adsorption pore 50 can be exemplified as 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, or 12 mm. Multiple third adsorption pores 50 are arranged in an array, with both the number of rows and columns greater than 1. For example… Figure 5 As shown, in this embodiment, the multiple third adsorption holes 50 are arranged in an array of 7 rows × 13 to 15 columns; in rows 1 and 2, each row has 13 columns; in rows 3 and 4, each row has 14 columns; and in rows 5 to 7, each row has 15 columns. This ensures uniform adsorption of the transparent area T3 in the first main surface 302, thereby guaranteeing the optical quality of the glass plate 300.

[0102] In this embodiment, a clearance groove 53 is also provided in the central region S3. The clearance groove 53 is located inside the first protrusion 31. The clearance groove 53 is a circular groove surrounded by the inner wall of the first protrusion 31. Multiple third adsorption holes 50 are distributed at the bottom of the clearance groove 53. The second sidewall of the first protrusion 31, which is opposite to the first sidewall, is the groove wall of the clearance groove 53. The clearance groove 53 is used to isolate the third adsorption holes 50 from the glass plate 300, avoiding direct contact between the third adsorption holes 50 and the glass plate 300, thereby ensuring the optical quality of the transparent area T3 of the glass plate 300, and thus ensuring the optical quality of the information acquisition area T31 and the main viewing area T32 in the first main surface 302. The third negative pressure generated by the multiple third adsorption holes 50 can be evenly distributed in the clearance groove 53.

[0103] In one specific embodiment, the transfer device 1000 is used to transfer multiple flat glass plates 300 onto a bending mold or pre-forming mold for stacking; or to transfer multiple bent glass plates from the bending mold after bending; or to stack multiple bent glass plates and simultaneously transfer them to the loading table of a glass washing machine for cleaning. Unlike the above embodiments, in this embodiment, the glass plates 300 are glass plates with a temperature below 500°C, and the glass plates 300 can be unbent flat glass plates or bent glass plates. Unlike conventional transfer methods, the transfer device 1000 transfers the glass plates 300 from above, unaffected by the device below the glass plates 300 or its movement, resulting in better transfer performance. Meanwhile, since the glass plate 300 is at a temperature of less than 500℃, the adsorption by the adsorption stage 100 will not affect the optical quality of the glass plate 300. This means that there are no limits on the vacuum pressure values ​​P1, P2, and P3 of the first negative pressure, i.e., the vacuum pressure values ​​P1, P2, and P3 of the first negative pressure are all large enough to ensure that the generated vacuum suction is sufficient to overcome the gravity of multiple glass plates 300, transfer more and / or heavier stacked glass plates 300, and achieve a greater moving speed and acceleration during transfer, thereby improving transfer efficiency.

[0104] The above description provides a detailed account of the transfer device, its application, and the glass bending and forming system of this application. However, this application is not limited to the specific embodiments described above. Therefore, any improvements, equivalent modifications, and substitutions made based on the technical points of this application shall fall within the scope of protection of this application.

Claims

1. A transfer device, characterized in that, The transfer device includes an adsorption stage, which includes a first edge region and a second edge region, wherein the first edge region surrounds the second edge region. The adsorption platform is provided with a first adsorption groove, a plurality of second adsorption holes, a first adsorption channel and a second adsorption channel. The first adsorption groove is located in the first edge region, the plurality of second adsorption holes are located in the second edge region, the first adsorption channel is connected to the first adsorption groove and is used to provide a first negative pressure, the second adsorption channel is connected to the plurality of second adsorption holes and is used to provide a second negative pressure, the first negative pressure and the second negative pressure are used to adsorb at least one glass plate onto the transfer device. The adsorption stage further includes a central region, and the second edge region is disposed around the central region; The adsorption stage is also provided with a plurality of third adsorption holes and a third adsorption channel. The plurality of third adsorption holes are located in the central region. The third adsorption channel is connected to the plurality of third adsorption holes and is used to provide a third negative pressure. The first negative pressure, the second negative pressure and the third negative pressure are used to adsorb at least one glass plate onto the transfer device.

2. The transfer device according to claim 1, characterized in that, The vacuum pressure value of the first negative pressure is P1, and the vacuum pressure value of the second negative pressure is P2, wherein P2 is greater than P1.

3. The transfer device according to claim 2, characterized in that, The vacuum pressure value of the third negative pressure is P3, where P2 is greater than P3.

4. The transfer device according to claim 1, characterized in that, The glass plate is a bent glass plate with a temperature greater than or equal to 500°C.

5. The transfer device according to claim 1, characterized in that, At least two stacked glass plates are adsorbed onto the transfer device, with silicon powder particles placed between adjacent glass plates.

6. The transfer device according to claim 1, characterized in that, An anti-cavity groove is provided in the central area, and the plurality of third adsorption holes are distributed at the bottom of the anti-cavity groove.

7. The transfer device according to claim 1, characterized in that, The cross-sectional area of ​​the second adsorption pore is larger than that of the third adsorption pore.

8. The transfer device according to claim 1, characterized in that, The plurality of the third adsorption pores are arranged in an array, and the number of rows and columns of the array is greater than 1.

9. The transfer device according to claim 1, characterized in that, The first adsorption tank includes an inner tank wall and an outer tank wall. The inner tank wall is closer to the second edge region than the outer tank wall. The outer tank wall protrudes relative to the inner tank wall in a direction that extends away from the first adsorption tank towards the first adsorption channel.

10. The transfer device according to claim 9, characterized in that, The height by which the outer tank wall protrudes relative to the inner tank wall is greater than or equal to the thickness of the glass plate closest to the adsorption stage.

11. The transfer device according to claim 9, characterized in that, The height by which the outer groove wall protrudes relative to the inner groove wall is less than or equal to the total thickness of all glass plates.

12. The transfer device according to claim 1, characterized in that, The bottom of the first adsorption tank is provided with a plurality of first connecting holes, and the first adsorption channel is connected to the first adsorption tank through the plurality of first connecting holes.

13. The transfer device according to claim 12, characterized in that, The cross-sectional area of ​​the first connecting hole is larger than the cross-sectional area of ​​the second adsorption hole.

14. The transfer device according to claim 1, characterized in that, The adsorption platform is also provided with a first protrusion and a second protrusion. The first adsorption groove is formed between the first protrusion and the second protrusion. The second protrusion is located outside the first adsorption groove and extends in a direction away from the first adsorption groove toward the first adsorption channel. The second protrusion protrudes relative to the first protrusion.

15. The transfer device according to claim 14, characterized in that, The first protrusion has an adsorption contact surface, and the plurality of second adsorption holes penetrate the adsorption contact surface.

16. The transfer device according to claim 15, characterized in that, A flexible liner is covered on the first protrusion, the flexible liner being used to isolate the adsorption contact surface from the glass plate.

17. The transfer device according to claim 1, characterized in that, The cross-sectional areas of the multiple second adsorption pores are not exactly the same, and / or the multiple second adsorption pores are not evenly distributed in the second edge region.

18. The transfer device according to claim 1, characterized in that, The transfer device further includes a vacuum suction device, which is connected to the first adsorption channel to provide the first negative pressure, the vacuum suction device is connected to the second adsorption channel to provide the second negative pressure, and the vacuum suction device is connected to the third adsorption channel to provide the third negative pressure.

19. The use of a transfer device, characterized in that, The transfer device is the transfer device according to any one of claims 1-18. The transfer device is used to transfer multiple flat glass sheets to a bending forming mold for stacking, or to transfer multiple bent glass sheets that have completed bending forming from the bending forming mold, or to stack multiple bent glass sheets that have completed bending forming and transfer them to the loading table of a glass washing machine for cleaning.

20. A glass bending and forming system, characterized in that, The glass bending forming system, including the transfer device as described in any one of claims 1-18, further includes a heating device, a pre-forming mold, a final forming mold, and an annealing device; A heating device for heating at least one glass plate to a temperature greater than or equal to 500°C; A preforming mold is used to initially bend and shape at least one glass plate with a temperature greater than or equal to 500°C to obtain at least one initially bent glass plate with a temperature greater than or equal to 500°C. A final forming mold is used to perform final bending forming on the at least one glass plate that has been initially bent at a temperature greater than or equal to 500°C, to obtain at least one glass plate that has been finally bent at a temperature greater than or equal to 500°C. A transfer device for transferring a pre-bent glass plate from the pre-forming mold to the final forming mold, and for transferring a final-bent glass plate from the final forming mold to the pre-forming mold or annealing ring; Annealing apparatus for annealing and cooling the at least one ultimately bent glass plate at a temperature greater than or equal to 500°C.

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