Thermal forming processing equipment adaptive to 3D curved glass cover plate on outer layer of display

Abstract

The invention relates to the technical field of glass processing equipment, and discloses thermal forming processing equipment adaptive to a 3D curved glass cover plate on the outer layer of a display. The rotating disc is installed on the upper surface of the supporting table through an annular sliding rail, and a plurality of sets of lower die bodies which are annularly arranged at equal intervals are fixed to the upper surface of the rotating disc; according to the thermal forming processing equipment adaptive to the 3D curved glass cover plate on the outer layer of the display, by integrating collaborative operation modules such as the automatic conveying mechanism, the visual identification module and the mechanical arm, automatic operation of multiple procedures of hot bending of glass is achieved, the production efficiency is improved, the production cost is reduced, and the production efficiency is improved. Manual intervention of glass auxiliary operation is reduced, the labor intensity of workers is greatly reduced, a low-oxygen or oxygen-free environment protected by high-purity nitrogen is constructed in the hot bending process, chemical reaction between the glass and oxygen during high-temperature hot bending is effectively avoided, oxidation spots and vaporific layers are completely eradicated, and the surface smoothness of the glass is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of glass processing equipment technology, specifically to a thermoforming processing equipment adapted to a 3D curved glass cover plate for the outer layer of a display. Background Technology

[0002] With the rapid development of automotive intelligence and connectivity, automotive displays, as the core carrier of human-computer interaction, are receiving increasing attention for their appearance design and performance indicators. The outer 3D curved glass cover of automotive displays has become a key component for improving the quality of automotive interiors and the user experience due to its smooth curved transition effect, excellent impact resistance, and high compatibility with the overall styling of the vehicle.

[0003] In existing equipment, many steps in the glass hot bending process rely on manual operation, resulting in low overall automation and increased labor intensity for workers. Furthermore, existing thermoforming equipment often completes glass hot pressing in an atmospheric pressure environment. Oxygen in the air can cause oxidation on the glass surface, forming visible spots or a hazy layer, reducing light transmittance and affecting the display clarity of automotive displays. The uneven heat conduction under atmospheric pressure can cause localized overheating of the glass, leading to stress concentration and reduced impact resistance of the formed 3D curved glass cover, making it difficult to withstand vibrations and impacts during vehicle operation. Therefore, we propose a thermoforming processing equipment adapted for 3D curved glass cover plates for displays to address these problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a thermoforming processing equipment adapted to the outer 3D curved glass cover of a display, solving problems such as low automation and easy oxidation during glass processing.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a thermoforming processing equipment for adapting to a 3D curved glass cover plate for the outer layer of a display, including a support platform;

[0006] A rotating disk is mounted on the upper surface of a support platform via an annular slide rail, and multiple sets of lower mold bodies arranged in an annular and equidistant pattern are fixed on the upper surface of the rotating disk.

[0007] A drive mechanism, mounted on the support platform, is used to drive the rotating disk to rotate;

[0008] The conveying mechanism is provided in two sets and located on one side of the support platform. A robotic arm is provided on one side of the conveying mechanism, and a vacuum suction cup is installed at the output end of the robotic arm.

[0009] A visual recognition module is installed at the end of the robotic arm near the vacuum suction cup;

[0010] The first housing cover is fixedly installed on the surface of the support platform;

[0011] A hot bending mechanism is installed on the first housing cover and works with the lower mold to hot-bend flat glass into a curved shape.

[0012] A vacuum integrated mechanism, mounted on the hot bending mechanism, is used to provide a vacuum environment within the hot pressing cavity;

[0013] An air cooler, located above the rotating disk, is used to cool the curved glass on the lower mold body.

[0014] Preferably, a support frame is fixedly installed on the lower surface of the support platform.

[0015] Preferably, a second housing cover is fixedly installed on the upper surface of the support platform away from the first housing cover, the air cooler is fixedly installed on the surface of the second housing cover, and an exhaust port is provided on the surface of the second housing cover.

[0016] Preferably, the drive mechanism includes a connecting frame rotatably mounted at the center of the support platform via bearings, the connecting frame being connected to a rotating disk, a motor being fixedly mounted on the bottom of the support platform via a mounting plate, a second gear being fixedly mounted on the output end of the motor, and a first gear being fixedly mounted on the surface of the connecting frame and meshing with the second gear.

[0017] Preferably, the hot bending mechanism includes a hydraulic push rod fixedly mounted on the first housing cover via a support plate. The output end of the hydraulic push rod is equipped with a connecting shaft, and the other end of the connecting shaft is fixedly mounted with an upper mold body. The upper mold body is provided with a cavity cover, and the outer surface of the cavity cover is provided with a heating coil.

[0018] Preferably, a connecting plate is fixedly mounted on the surface of the connecting shaft, and telescopic rods arranged symmetrically are provided between the connecting plate and the cavity cover, with springs wound around the surface of the telescopic rods.

[0019] Preferably, a heat insulation plate is fixedly installed at the end of the telescopic rod away from the connecting plate, the heat insulation plate is fixedly connected to the cavity cover, and the two ends of the spring are fixedly connected to the connecting plate and the heat insulation plate respectively.

[0020] Preferably, the top of the cavity cover has a sliding hole adapted to the connecting shaft, the connecting shaft and the sliding hole of the cavity cover are sealed and fitted together, and the top of the first housing cover has a moving hole adapted to the connecting shaft.

[0021] Preferably, the vacuum integrated mechanism includes heat insulation tubes symmetrically arranged and fixedly connected to the upper surface of the cavity cover. One end of each heat insulation tube extends to the outside of the first housing cover. A first connecting tube and a second connecting tube are fixedly installed at one end of each of the two sets of heat insulation tubes. A vacuum pump is fixedly installed on the upper surface of the first housing cover via a support block. The input end of the vacuum pump is fixedly connected to the second connecting tube. A nitrogen filling machine is provided on one side of the first housing cover. The delivery end of the nitrogen filling machine is connected to one end of the first connecting tube. Both the first and second connecting tubes are flexible hoses. A control valve is installed at the top end of each heat insulation tube.

[0022] Preferably, the upper mold body, the cavity cover, and the lower mold body are all made of graphite.

[0023] Beneficial effects

[0024] This invention provides a thermoforming processing device for adapting to a 3D curved glass cover plate for the outer layer of a display. Compared with the prior art, it has the following advantages:

[0025] This thermoforming equipment for 3D curved glass covers for displays integrates automated conveying mechanisms, visual recognition modules, robotic arms, and other collaborative operation modules to achieve fully automated operation of the glass hot bending process across multiple stages. This reduces manual intervention in glass handling, significantly decreasing labor intensity and eliminating uncertainties associated with manual operation. It also improves production efficiency, enabling continuous batch production to meet the needs of large-scale industrial production. Furthermore, through the coordinated operation of vacuum pumps and nitrogen filling machines, a low-oxygen or oxygen-free environment protected by high-purity nitrogen is created during the hot bending process. This effectively prevents chemical reactions between the glass and oxygen during high-temperature hot bending, eliminating oxidation spots and haze, ensuring a smooth glass surface. Nitrogen, as an inert gas, inhibits the decomposition and deposition of volatiles on the glass surface, further improving light transmittance and ensuring clear, uninterrupted visuals for automotive displays. This enhances the equipment's performance and meets practical application requirements. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the cavity cover and heating coil and other connecting parts of the present invention;

[0028] Figure 3 This is a cross-sectional view of the cavity cover structure of the present invention;

[0029] Figure 4 This is a top view of the overall structure of the present invention;

[0030] Figure 5 This is a bottom view of the overall structure of the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of the connecting parts such as the robotic arm and vacuum suction cup of the present invention.

[0032] In the diagram: 101, Support frame; 102, Support platform; 103, Rotary disk; 104, Lower mold body; 105, Conveying mechanism; 106, Robotic arm; 107, Vacuum suction cup; 108, First housing cover; 109, Second housing cover; 110, Air cooler; 2, Drive mechanism; 201, First gear; 202, Second gear; 203, Motor; 204, Connecting frame; 3, Hot bending mechanism; 301, Hydraulic push rod; 302, Connecting shaft; 303, Connecting plate; 304, Upper mold body; 305, Cavity cover; 306, Heating coil; 307, Heat insulation plate; 308, Telescopic rod; 309, Spring; 4, Vacuum integrated mechanism; 401, Heat insulation pipe; 402, Nitrogen filling machine; 403, First connecting pipe; 404, Vacuum pump; 405, Second connecting pipe. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] like Figure 1-6 As shown:

[0035] A thermoforming equipment for adapting to a 3D curved glass cover plate for a display includes a support platform 102, and a support frame 101 is fixedly installed on the lower surface of the support platform 102.

[0036] The rotating disk 103 is mounted on the upper surface of the support platform 102 via an annular slide rail, and multiple sets of lower mold bodies 104 arranged in an annular and equidistant manner are fixed on the upper surface of the rotating disk 103.

[0037] The drive mechanism 2 is mounted on the support platform 102 and is used to drive the rotating disk 103 to rotate. The drive mechanism 2 includes a connecting frame 204 rotatably mounted at the center of the support platform 102 via bearings. The connecting frame 204 is connected to the rotating disk 103. The bottom of the support platform 102 is fixedly mounted with a motor 203 via a mounting plate. The output end of the motor 203 is fixedly mounted with a second gear 202. The surface of the connecting frame 204 is fixedly mounted with a first gear 201 that meshes with the second gear 202.

[0038] The conveying mechanism 105 is provided in two sets and is located on one side of the support platform 102. A robotic arm 106 is provided on one side of the conveying mechanism 105, and a vacuum suction cup 107 is installed at the output end of the robotic arm 106.

[0039] The visual recognition module is installed at one end of the robotic arm 106 near the vacuum suction cup 107;

[0040] The first housing cover 108 is fixedly installed on the surface of the support platform 102;

[0041] The hot bending mechanism 3 is installed on the first housing cover 108 and works with the lower mold body 104 to hot-bend flat glass into a curved shape. The hot bending mechanism 3 includes a hydraulic push rod 301 fixedly installed on the first housing cover 108 via a support plate. A connecting shaft 302 is installed at the output end of the hydraulic push rod 301, and an upper mold body 304 is fixedly installed at the other end of the connecting shaft 302. A cavity cover 305 is provided on the outside of the upper mold body 304, and a heating coil 306 is provided on the outer surface of the cavity cover 305. A connecting plate 303 is fixedly installed on the surface of the connecting shaft 302. The connecting plate 303 and the cavity cover 304 are connected together. A telescopic rod 308 is symmetrically arranged between 05. A spring 309 is wound around the surface of the telescopic rod 308. A heat insulation plate 307 is fixedly installed at the end of the telescopic rod 308 away from the connecting plate 303. The heat insulation plate 307 and the cavity cover 305 are fixedly connected. The two ends of the spring 309 are fixedly connected to the connecting plate 303 and the heat insulation plate 307 respectively. A sliding hole adapted to the connecting shaft 302 is opened on the top of the cavity cover 305. The sliding hole of the connecting shaft 302 and the cavity cover 305 are sealed and fitted. A moving hole adapted to the connecting shaft 302 is opened on the top of the first housing cover 108.

[0042] The vacuum integrated mechanism 4, mounted on the hot bending mechanism 3, is used to provide a vacuum environment within the hot pressing cavity. The vacuum integrated mechanism 4 includes heat insulation tubes 401 that are fixedly connected to the upper surface of the cavity cover 305 and arranged symmetrically. One end of the heat insulation tubes 401 extends to the outside of the first housing cover 108. A first connecting tube 403 and a second connecting tube 405 are fixedly installed at one end of the two sets of heat insulation tubes 401, respectively. A vacuum pump 404 is fixedly installed on the upper surface of the first housing cover 108 by a support block. The input end of the vacuum pump 404 is fixedly connected to the second connecting tube 405. A nitrogen filling machine 402 is provided on one side of the first housing cover 108. The delivery end of the nitrogen filling machine 402 is connected to one end of the first connecting tube 403. Both the first connecting tube 403 and the second connecting tube 405 are flexible hoses. A control valve is installed at the top end of each heat insulation tube 401.

[0043] The upper mold body 304, the cavity cover 305, and the lower mold body 104 are all made of graphite.

[0044] Air cooler 110 is located above rotary disk 103 and is used to cool the curved glass on the lower mold body 104. A second housing cover 109 is fixedly installed on the upper surface of support platform 102 away from the first housing cover 108. Air cooler 110 is fixedly installed on the surface of the second housing cover 109. An exhaust port is opened on the surface of the second housing cover 109.

[0045] In this implementation plan: When using the thermoforming equipment for the outer 3D curved glass cover of the display, the flat glass is hot-pressed into a 3D curved structure. The glass to be processed is placed on the conveying mechanism 105 located on the left side and the glass is conveyed. When the glass is conveyed to the end of the conveying mechanism 105.

[0046] The conveying mechanism 105 is driven by a servo motor. It uses the friction between the rollers and the belt to move the glass forward. When the glass approaches the end of the conveying mechanism 105, sensors installed at the end, such as photoelectric sensors, detect the glass edge and send a glass arrival signal to the control system, triggering the subsequent gripping process of the robotic arm 106. At this time, the conveying mechanism 105 can decelerate or stop as needed to prevent the glass from rushing out of the conveying mechanism 105 due to inertia. After receiving the glass arrival signal, the robotic arm 106 moves to a preset shooting position at the end of the conveying mechanism 105. The vision recognition module starts shooting, extracts the glass area using image segmentation technology, and then identifies... The actual edge and corner coordinates of the glass are compared with a preset standard template to calculate the actual position and posture deviations of the glass. The vision recognition module transmits the calculated deviation data to the control system of the robotic arm 106 in real time, which serves as the basis for the robotic arm 106 to adjust its gripping position. The control system moves the joints of the robotic arm 106, such as the shoulder, elbow, and wrist, to align the center of the vacuum suction cup 107 with the optimal gripping point of the glass. At the same time, the angle of the vacuum suction cup 107 is adjusted to match the rotational deviation of the glass. During the movement, the robotic arm 106 receives real-time position information feedback through an encoder to ensure movement accuracy. Once the vacuum suction cup 107 reaches the gripping position above the glass... The robotic arm 106 controls the vacuum suction cup 107 to descend and contact the glass surface. The vacuum system is activated, generating negative pressure inside the vacuum suction cup 107. Atmospheric pressure is used to firmly adhere the glass to the surface of the vacuum suction cup 107. A vacuum sensor monitors the pressure inside the vacuum suction cup 107 in real time. When the pressure reaches a preset threshold, a successful adsorption signal is sent to the control system. After confirming successful adsorption, the robotic arm 106 moves from the end of the conveying mechanism 105 to above the lower mold 104 according to a preset path. If there is a slight deviation in the position of the lower mold 104, some systems will add auxiliary visual points near the lower mold 104. When the robotic arm 106 moves above the lower mold 104, visual recognition is performed. The module takes another picture of the positioning mark of the lower mold 104, and performs a second calibration of the placement position to ensure the matching accuracy between the glass and the lower mold 104. The robotic arm 106 moves the glass to the preset placement position of the lower mold 104, adjusts the height so that the glass gently touches the surface of the lower mold 104, the control system sends a release signal, the vacuum system stops working, the negative pressure in the vacuum suction cup 107 disappears, and atmospheric pressure causes the vacuum suction cup 107 to separate from the glass. The glass is placed stably on the lower mold 104. After the release is completed, the robotic arm 106 drives the vacuum suction cup 107 back to the waiting position at the end of the conveying mechanism 105, ready to grab the next piece of glass. At the same time, the lower mold 104 enters the subsequent hot bending process.

[0047] like Figure 5As shown: In this process, by starting the motor 203, the second gear 202 is driven to rotate. The second gear 202 and the motor 203 are meshed and connected, which in turn drives the first gear 201 to rotate. The first gear 201 drives the connecting frame 204 to rotate, and the connecting frame 204 drives the rotating disk 103 to rotate. The rotating disk 103 can drive the lower mold body 104 to rotate synchronously.

[0048] like Figure 2 and 3As shown, when the lower mold 104, carrying the glass to be bent, moves to a preset position directly below the upper mold 304 via the rotating disk 103, a position sensor, such as a laser positioner, detects that the lower mold 104 is in position and sends a mold closing preparation signal to the control system. The control system triggers the hydraulic push rod 301 to start, and hydraulic oil enters the rodless cavity of the hydraulic push rod 301 through a solenoid valve, pushing the connecting shaft 302 to extend and causing the upper mold 304 to move vertically downward. At the same time, a cavity cover 305 is provided on the connecting shaft 302, thereby causing the cavity cover 305 to move downward synchronously. Gradually, the cavity cover 305, in conjunction with the rotating disk 103, closes the lower mold 104 and... The glass is completely sealed. While the cavity cover 305 contacts the rotating disk 103, the upper mold body 304 and lower mold body 104 are not in contact. As the upper mold body 304 continues to move downwards, it causes the telescopic rod 308 and spring 309 to continue compressing. The upper surface of the rotating disk 103 begins to have sealing slots that match the opening at the bottom of the cavity cover 305. Heating coils 306 installed on the outer surface of the cavity cover 305 are simultaneously energized, transferring heat to the interior of the cavity cover 305 through thermal conduction. The heat then radiates, rapidly raising the internal temperature to the softening point of the glass. During this heating process, a temperature sensor is installed inside the cavity cover 305. Thermocouples provide real-time temperature data feedback. The control system adjusts the heating power using a PID algorithm to ensure the temperature remains stable within a preset range. Before heating, vacuum pump 404 connects to cavity cover 305 via second connecting pipe 405 and heat insulation pipe 401, and starts pumping air. Air inside cavity cover 305 is rapidly extracted, and the pressure drops to a low vacuum state. When the vacuum level reaches the preset value, vacuum pump 404 stops or maintains low-power operation. The control valve on one set of heat insulation pipes 401 is sealed. Then, nitrogen filling machine 402 fills cavity cover 305 with high-purity nitrogen through first connecting pipe 403 and another set of heat insulation pipes 401. After the environment stabilizes, the control system controls the hydraulic push rod 301 to continue applying pressure. Under the drive of the hydraulic push rod 301 and the connecting shaft 302, the connecting plate 303 applies a preset pressure to the lower mold body 104. At this time, the glass is in a softened state. Under the pressure of the upper mold body 304 and the cavity constraint of the lower mold body 104, it gradually conforms to the curvature of the mold surface and completes the bending and forming. After the preset forming time is reached, the pressure is kept constant and the heating coil 306 gradually cools down. The glass cools and solidifies slowly under pressure to avoid internal stress caused by rapid cooling and breakage. The hydraulic push rod 301 drives the cavity cover 305 and the upper mold body 304 to move upward and reset.

[0049] Simultaneously, the motor 203 continues to drive the rotating disk 103 and the lower mold 104 to rotate synchronously, thereby continuously moving the hot-bent glass out from the first housing cover 108 and allowing it to undergo initial natural cooling. Then, it enters the second housing cover 109 and is cooled by the air cooler 110. Next, the rotating disk 103 drives the cooled glass to the other side of the conveying mechanism 105. Then, another set of robotic arms 106 drives the vacuum suction cup 107 to remove the glass from the lower mold 104 and place it on another set of conveying mechanisms 105 for transport to the designated area.

[0050] This solution integrates automated conveying mechanism 105, vision recognition module, robotic arm 106, and other collaborative operation modules to achieve fully automated operation of multiple processes in glass hot bending. This reduces manual intervention in glass operation, significantly decreasing labor intensity and avoiding the uncertainties associated with manual operation. It also improves production efficiency, enabling continuous batch production and meeting the needs of large-scale industrial production. Furthermore, through the coordinated operation of vacuum pump 404 and nitrogen filling machine 402, a low-oxygen or oxygen-free environment protected by high-purity nitrogen is created during hot bending. This effectively prevents chemical reactions between the glass and oxygen during high-temperature hot bending, eliminating the formation of oxide spots and haze, ensuring the smoothness of the glass surface. Nitrogen, as an inert gas, inhibits the decomposition and deposition of volatiles on the glass surface, further improving the glass transmittance and ensuring clear, uninterrupted visuals for automotive displays during use. This further enhances the effectiveness of the equipment and meets practical application requirements.

[0051] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A thermoforming processing equipment for a 3D curved glass cover plate adapted for the outer layer of a display, characterized in that: Including the support platform (102); A rotating disk (103) is mounted on the upper surface of a support platform (102) via an annular slide rail, and multiple sets of lower mold bodies (104) arranged in an annular equidistant pattern are fixed on the upper surface of the rotating disk (103). A drive mechanism (2) is mounted on the support platform (102) and is used to drive the rotating disk (103) to rotate. The conveying mechanism (105) is provided in two sets and is located on one side of the support platform (102). A robotic arm (106) is provided on one side of the conveying mechanism (105), and a vacuum suction cup (107) is installed at the output end of the robotic arm (106). A visual recognition module is installed on one end of the robotic arm (106) near the vacuum suction cup (107); The first housing cover (108) is fixedly installed on the surface of the support platform (102); The hot bending mechanism (3) is installed on the first housing cover (108) and works with the lower mold body (104) to hot-bend the flat glass into a curved shape; A vacuum integrated mechanism (4) is provided on the hot bending mechanism (3) to provide a vacuum environment for the hot pressing cavity; An air cooler (110) is located above the rotating disk (103) and is used to cool the curved glass on the lower mold body (104).

2. The thermoforming equipment for adapting a 3D curved glass cover plate for a display outer layer according to claim 1, characterized in that: A support frame (101) is fixedly installed on the lower surface of the support platform (102).

3. The thermoforming equipment for adapting a 3D curved glass cover plate for a display outer layer according to claim 1, characterized in that: A second housing cover (109) is fixedly installed on the upper surface of the support platform (102) away from the first housing cover (108). The air cooler (110) is fixedly installed on the surface of the second housing cover (109). An exhaust port is provided on the surface of the second housing cover (109).

4. The thermoforming equipment for adapting a 3D curved glass cover plate for a display outer layer according to claim 1, characterized in that: The drive mechanism (2) includes a connecting frame (204) rotatably mounted at the center of the support platform (102) via bearings. The connecting frame (204) is connected to the rotating disk (103). A motor (203) is fixedly mounted on the bottom of the support platform (102) via a mounting plate. A second gear (202) is fixedly mounted on the output end of the motor (203). A first gear (201) that meshes with the second gear (202) is fixedly mounted on the surface of the connecting frame (204).

5. The thermoforming equipment for adapting a 3D curved glass cover plate for a display outer layer according to claim 1, characterized in that: The hot bending mechanism (3) includes a hydraulic push rod (301) fixedly mounted on the first housing cover (108) by a support plate. A connecting shaft (302) is installed at the output end of the hydraulic push rod (301). An upper mold body (304) is fixedly mounted at the other end of the connecting shaft (302). A cavity cover (305) is provided outside the upper mold body (304). A heating coil (306) is provided on the outer surface of the cavity cover (305).

6. The thermoforming equipment for adapting a 3D curved glass cover plate for a display outer layer according to claim 5, characterized in that: A connecting plate (303) is fixedly installed on the surface of the connecting shaft (302). A telescopic rod (308) is provided between the connecting plate (303) and the cavity cover (305) in a symmetrical arrangement. A spring (309) is wound around the surface of the telescopic rod (308).

7. The thermoforming equipment for adapting a 3D curved glass cover plate for a display outer layer according to claim 6, characterized in that: A heat insulation plate (307) is fixedly installed at one end of the telescopic rod (308) away from the connecting plate (303). The heat insulation plate (307) is fixedly connected to the cavity cover (305). The two ends of the spring (309) are fixedly connected to the connecting plate (303) and the heat insulation plate (307) respectively.

8. The thermoforming equipment for adapting a 3D curved glass cover plate for a display outer layer according to claim 7, characterized in that: The top of the cavity cover (305) is provided with a sliding hole that is adapted to the connecting shaft (302). The sliding hole of the connecting shaft (302) and the cavity cover (305) are sealed and fitted together. The top of the first housing cover (108) is provided with a moving hole that is adapted to the connecting shaft (302).

9. The thermoforming equipment for adapting a 3D curved glass cover plate for a display outer layer according to claim 8, characterized in that: The vacuum integrated mechanism (4) includes heat insulation tubes (401) symmetrically arranged and fixedly connected to the upper surface of the cavity cover (305). One end of the heat insulation tube (401) extends to the outside of the first housing cover (108). One end of each of the two sets of heat insulation tubes (401) is fixedly installed with a first connecting tube (403) and a second connecting tube (405). A vacuum pump (404) is fixedly installed on the upper surface of the first housing cover (108) by a support block. The input end of the vacuum pump (404) is fixedly connected to the second connecting tube (405). A nitrogen filling machine (402) is provided on one side of the first housing cover (108). The delivery end of the nitrogen filling machine (402) is connected to one end of the first connecting tube (403). Both the first connecting tube (403) and the second connecting tube (405) are flexible hoses. A control valve is installed at the top of each heat insulation tube (401).

10. The thermoforming equipment for adapting a 3D curved glass cover plate for a display outer layer according to claim 8, characterized in that: The upper mold body (304), the cavity cover (305), and the lower mold body (104) are all made of graphite.

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