Glass forming concave mold, glass forming apparatus, and glass forming method

Abstract

The application provides a glass forming concave die, a glass forming device and a glass forming method. The glass forming concave die comprises a base, a peripheral zone pressing part and a signal transmission zone pressing part. The peripheral zone pressing part is arranged on the base and is annularly arranged to contact a peripheral zone. The signal transmission zone pressing part is arranged on the base and is arranged in the peripheral zone pressing part to contact a signal transmission zone. The signal transmission zone pressing part can be used to independently adjust the pressing state of the glass plate on the signal transmission zone during the forming process, thereby improving the adhesion between the signal transmission zone and the glass forming convex die, and further improving the optical performance of the signal transmission zone to meet the requirements of high-order automatic driving technology.

Description

Technical Field

[0001] This application belongs to the field of glass forming technology, specifically relating to glass forming dies, glass forming equipment, and glass forming methods. Background Technology

[0002] ADAS (Advanced Driver-Assistance Systems) uses onboard cameras to constantly sense the surrounding environment while the car is in motion, collect data, identify, detect and track static and dynamic objects, and combine this with navigation map data to perform system calculations and analysis, thereby allowing the driver to be aware of potential dangers in advance, effectively increasing the comfort and safety of driving.

[0003] The area on the windshield used to install vehicle cameras is usually called the ADAS area. The optical requirements for ADAS areas vary depending on the level of autonomous driving (L0~L5). Level L3 and above require optical values ​​less than 75 mdpt. The higher the autonomous driving level, the stricter the requirements.

[0004] However, for windshields with ADAS areas, during the glass heating and softening process, the significant difference in heat absorption capacity between the printed and non-printed areas results in a lower glass temperature in the non-printed area and a higher glass temperature in the printed area, creating a non-negligible temperature difference. This affects the degree of glass softening and ultimately the fit between the glass and the molding mold during the forming process. Consequently, when parallel light rays penetrate the glass, a significant lens effect is produced, resulting in a larger focal length that easily exceeds the optical requirements of autonomous driving technology, thus failing to meet the requirements of advanced autonomous driving technology. Summary of the Invention

[0005] In view of this, the first aspect of this application provides a glass forming die for pressing and forming a glass plate, the glass plate including a peripheral region and a signal transmission region, the signal transmission region being located within the peripheral region, and the glass forming die comprising: Base; A peripheral pressing part is provided on the base, and the peripheral pressing part is arranged in a ring shape for contacting the peripheral area; A signal transmission area suppression part is provided on the base, and the signal transmission area suppression part is located inside the peripheral suppression part for contacting the signal transmission area.

[0006] The signal transmission area suppression section includes: A support base is provided on the base; A mating part is provided on the side of the support seat away from the base. The mating part has an air cavity for containing gas and is used to contact the signal transmission area.

[0007] The shape of the air cavity wall matches the shape of the signal transmission area; And / or, the curvature of the mating portion used to contact the signal transmission area is the same as the curvature of the glass forming punch at the corresponding position.

[0008] Wherein, the first projected area of ​​the cavity wall in the vertical direction is larger than the area of ​​the signal transmission region.

[0009] Wherein, the portion of the first projected area that is larger than the area of ​​the signal transmission region accounts for 5% to 50% of the area of ​​the signal transmission region.

[0010] The gas pressure inside the air chamber is 0~6 MPa.

[0011] The mating part includes: A bracket is provided on the side of the support base opposite to the base; A contact layer is provided on the side of the bracket away from the base, and the air cavity is formed between the bracket and the contact layer. The contact layer is used to contact the signal transmission area.

[0012] The material of the contact layer is selected from flexible materials.

[0013] The material of the contact layer includes at least one of aluminum foil fiberglass composite cloth, ceramic fiber fabric, and basalt fiber.

[0014] The mating part further includes a sealing layer, at least a portion of which is disposed on the side of the contact surface facing the bracket.

[0015] The sealing layer includes at least one of silicate-based sealing coating, yttrium oxide ceramic coating, zirconia ceramic coating, and aluminum phosphate and silica sol composite coating.

[0016] Wherein, the second projected area of ​​the contact layer in the vertical direction is larger than the area of ​​the signal transmission region.

[0017] Wherein, the portion of the second projected area that is larger than the area of ​​the signal transmission region accounts for 5% to 50% of the area of ​​the signal transmission region.

[0018] The contact layer has a contact surface for contacting the signal transmission area, and the similarity between the contact surface and the glass substrate surface to be pressed corresponding to the signal transmission area is 70% to 90%.

[0019] Wherein, the structural strength of the base is greater than the structural strength of the pressing part in the peripheral area; And / or, the hardness of the portion of the peripheral area pressing part used to contact the peripheral area is greater than the hardness of the portion of the signal transmission area pressing part used to contact the signal transmission area.

[0020] The contact width between the peripheral pressing part and the peripheral area is 5mm to 20mm.

[0021] The glass forming die further includes an adjustment component, which connects the base and the peripheral pressing part, and is used to adjust the distance between the peripheral pressing part and the base.

[0022] The adjustment component includes: A movable component, one end of which passes through the base, is capable of rotating relative to the base; The fixing member has one end fixed to the pressing part of the peripheral area, and the other end of the fixing member is connected to the other end of the movable member in a transmission connection. When the movable member rotates relative to the base, the movable member drives the fixed member to move, thereby causing the peripheral pressing part to move relative to the base.

[0023] The second aspect of this application provides a glass forming apparatus, which includes a glass forming punch and a glass forming die as provided in the first aspect of this application.

[0024] A third aspect of this application provides a glass forming method, the glass forming method comprising: Provide a glass plate to be processed, a glass forming die as provided in the first aspect of this application, and a glass forming punch; The glass forming die and the glass forming punch are positioned on opposite sides of the glass plate to be processed and pressed against each other; wherein the peripheral area pressing part is used to contact the peripheral area of ​​the glass plate to be processed, and the signal transmission area pressing part contacts the signal transmission area of ​​the glass plate to be processed. The glass plate to be processed is formed into a glass plate with convex and concave surfaces.

[0025] The glass forming die, glass forming equipment, and glass forming method provided in this application, by setting a signal transmission area pressing part, can individually adjust the pressing state of the glass plate on the signal transmission area during the forming process, thereby improving the fit between the signal transmission area and the glass forming die, and thus improving the optical performance of the signal transmission area to meet the requirements of advanced autonomous driving technology. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments of this application will be described below.

[0027] Figure 1 This is a schematic diagram of the structure of a glass plate provided in one embodiment of this application.

[0028] Figure 2 This is a schematic diagram of the structure of a glass forming die provided in one embodiment of this application.

[0029] Figure 3 This is a schematic diagram of the structure of the signal transmission area suppression section provided in one embodiment of this application.

[0030] Figure 4 An exploded view of the structure of the signal transmission area suppression section provided in one embodiment of this application.

[0031] Figure 5 for Figure 2 A magnified view of a portion of the image.

[0032] Figure 6 This is a schematic diagram of the structure of a glass forming punch provided in one embodiment of this application.

[0033] Figure 7 This is a schematic diagram of the structure of a glass forming apparatus provided in one embodiment of this application.

[0034] Labeling: 1. Glass forming die, 11. Base, 12. Peripheral area pressing part, 13. Signal transmission area pressing part, 131. Support, 132. Fitting part, 1321. Bracket, 1322. Contact layer, 1322. Air cavity, 133. Pipe, 134. Adjustment component, 14. Moving part, 141. Fixing part, 142. Glass plate, 2. Peripheral area, 22. Signal transmission area, 22. Glass forming equipment, 3. Glass forming punch, 31. Detailed Implementation

[0035] The following are preferred embodiments of this application. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

[0036] In view of this, in order to solve the above problems, please refer to the following: Figures 1-2This embodiment provides a glass forming die 1, which is used to press and form a glass plate 2. The glass plate 2 includes a peripheral region 21 and a signal transmission region 22. The signal transmission region 22 is located within the peripheral region 21. The glass forming die 1 includes a base 11, a peripheral region pressing part 12, and a signal transmission region pressing part 13. The peripheral region pressing part 12 is disposed on the base 11 and is arranged in a ring shape for contacting the peripheral region 21. The signal transmission region pressing part 13 is disposed on the base 11 and is located within the peripheral region pressing part for contacting the signal transmission region 22.

[0037] Among them, the surrounding area 21 of the glass plate 2 is provided with a shielding layer. The shielding layer is used to shield the vehicle-related parts to improve the aesthetics. The shielding layer can also be provided with body adhesive to improve the adhesion performance of the area. It can also be used as an assembly positioning mark for functional parts. The functional parts can be pads, edge strips, brackets 1321, etc.

[0038] The glass assembly includes a glass plate 2 and a detection sensor. The detection sensor is positioned corresponding to the signal transmission area 22 of the glass plate 2. The detection sensor can emit a detection signal, which penetrates the signal transmission area 22 and is emitted to the object under test. The object under test reflects the signal to form a feedback signal, which penetrates the signal transmission area 22 and is emitted to the detection sensor. The detection sensor receives the feedback signal. Optionally, the detection sensor can be a camera, radar, antenna, etc.

[0039] The signal transmission area 22 is located within the surrounding area 21. Optionally, the signal transmission area 22 and the surrounding area 21 are spaced apart. Alternatively, the surrounding area 21 may also include a side area and an extension area connected to each other, with the extension area connecting to the surrounding area 21.

[0040] The base 11 is used to fix and support other components. Optionally, the peripheral area pressing part 12 is directly connected to the base 11, or the peripheral area pressing part 12 is indirectly connected to the base 11 through other components. Optionally, the signal transmission area pressing part 13 is directly connected to the base 11, or the signal transmission area pressing part 13 is indirectly connected to the base 11 through other components.

[0041] The peripheral pressing section 12 is arranged in a ring shape, and the shape of the peripheral pressing section 12 matches the shape of the peripheral area 21. During glass forming, the peripheral pressing section 12 contacts the peripheral area 21 to cooperate in pressing the glass plate 2, so that the glass plate 2 forms a concave surface.

[0042] Optionally, the surrounding area 21 includes a left side area, an upper side area, a right side area, and a lower side area connected in sequence.

[0043] The peripheral area pressing part 12 includes a left side pressing part, an upper side pressing part, a right side pressing part, and a lower side pressing part connected in sequence; the left side pressing part is used to contact the left side area, the upper side pressing part is used to contact the upper side area, the right side pressing part is used to contact the right side area, and the lower side pressing part is used to contact the lower side area.

[0044] Specifically, the contact width between the peripheral pressing part 12 and the peripheral area 21 is 5mm to 20mm, and can be exemplified as 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, or 20mm, etc.

[0045] The signal transmission area pressing part 13 is located on one side of the inner peripheral sidewall of the peripheral pressing part. Optionally, the signal transmission area pressing part 13 and the peripheral pressing part are spaced apart to avoid interference between the signal transmission area pressing part 13 and the peripheral pressing part, thereby reducing the risk of deterioration of the optical performance of the glass plate 2. The shape of the signal transmission area pressing part 13 matches the shape of the signal transmission area 22. During glass forming, the signal transmission area pressing part 13 contacts the signal transmission area 22 to press the glass plate 2, causing the glass plate 2 to form a concave surface.

[0046] In summary, the glass forming die 1 provided in this embodiment, by providing a signal transmission area pressing part 13, can independently adjust the pressing state of the glass plate 2 on the signal transmission area 22 during the forming process, thereby improving the fit between the signal transmission area 22 and the glass forming punch 31, and further improving the optical performance of the signal transmission area 22 to meet the requirements of advanced autonomous driving technology.

[0047] Please refer to this as well. Figures 1-4 In one embodiment, the signal transmission area suppression part 13 includes a support base 131 and a mating part 132. The support base 131 is disposed on the base 11. The mating part 132 is disposed on the side of the support base 131 away from the base 11. The mating part 132 has an air cavity 133 for containing gas. The mating part 132 is used to contact the signal transmission area 22.

[0048] The support base 131 is used to support and fix the mating part 132. The support base 131 is fixedly connected to the base 11, or the support base 131 is detachably connected to the base 11. Optionally, the connection relationship between the support base 131 and the base 11 includes, but is not limited to, threaded connection, snap-fit, adhesive connection, etc.

[0049] The mating part 132 is used to suppress the signal transmission area 22. The mating part 132 is fixedly connected to the support base 131, or the mating part 132 is detachably connected to the support base 131. Optionally, the connection relationship between the mating part 132 and the support base 131 includes, but is not limited to, threaded connection, snap-fit, adhesive connection, etc.

[0050] The mating part 132 has an air cavity 133. Optionally, the glass forming die 1 also includes a conduit 134, which connects an air source to the air cavity 133 and is used to introduce gas from the air source into the air cavity 133. Further optionally, the gas is a high-pressure gas. Furthermore, the external environment can control the gas pressure within the air cavity 133 to change the pressure exerted by the mating part 132 on the signal transmission area 22.

[0051] For example, increasing the gas pressure in the air chamber 133 can increase the pressure exerted by the mating part 132 on the signal transmission area 22.

[0052] For example, reducing the gas pressure in the air chamber 133 can reduce the pressure exerted by the mating part 132 on the signal transmission area 22.

[0053] Therefore, in this embodiment, an air cavity 133 is provided in the mating part 132. By adjusting the gas pressure in the air cavity 133, the pressing force of the mating part 132 on the signal transmission area 22 can be changed, thereby realizing the individual adjustment of the pressing state of the signal transmission area 22 during the molding process. This improves the fit between the signal transmission area 22 and the glass molding punch 31, and enhances the optical performance of the signal transmission area 22 to meet the requirements of advanced autonomous driving technology.

[0054] Furthermore, the shape of the cavity wall of the air cavity 133 matches the shape of the signal transmission region 22.

[0055] For example, the signal transmission area suppression section 13 is trapezoidal, and the cavity wall of the air cavity 133 is also trapezoidal.

[0056] For example, the signal transmission area suppression section 13 is rectangular, and the cavity wall of the air cavity 133 is also rectangular.

[0057] Therefore, this embodiment ensures that the pressing force of each part of the signal transmission area 22 can be uniformly adjusted by defining the shape of the cavity wall of the air cavity 133 corresponding to the shape of the signal transmission area 22, thereby further improving the fit between the signal transmission area 22 and the glass forming punch 31, and further improving the optical performance of the signal transmission area 22 to meet the requirements of advanced autonomous driving technology.

[0058] And / or, the curvature of the mating portion 132 used to contact the signal transmission area 22 is the same as the curvature of the glass forming punch 31 at the corresponding position.

[0059] For example, the mating part 132 used for contact signal transmission area 22 is a contact layer 1322, and the surface curvature of the contact layer 1322 facing away from the support base 131 is the same as the curvature of the glass forming punch 31 at the corresponding position. The glass forming punch 31 and the glass forming die 1 cooperate with each other to press the glass plate 2 towards each other to obtain a glass plate 2 with convex and concave surfaces.

[0060] Therefore, by limiting the curvature of the mating part 132, this embodiment further improves the fit between the signal transmission area 22 and the glass forming punch 31, and further improves the optical performance of the signal transmission area 22 to meet the requirements of advanced autonomous driving technology.

[0061] Furthermore, the first projected area of ​​the cavity wall of the air cavity 133 in the vertical direction is larger than the area of ​​the signal transmission region 22.

[0062] Specifically, the portion of the first projected area that is larger than the area of ​​the signal transmission region 22 accounts for 5% to 50% of the area of ​​the signal transmission region 22. For example, it can be 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50%.

[0063] Vertical direction, such as Figure 3 Shown in the middle direction D.

[0064] It can also be understood that the first projected area of ​​the cavity wall of the air cavity 133 in the arrangement direction from the base 11 to the signal transmission area suppression part 13 is greater than the area of ​​the signal transmission area 22.

[0065] This embodiment limits the relationship between the first projected area and the area of ​​the signal transmission area 22, thereby ensuring that the air cavity 133 can not only cover the signal transmission area 22, but also the adjacent area of ​​the signal transmission area 22, such as the printed area adjacent to the signal transmission area 22. This avoids a large difference in pressure between the signal transmission area 22 and its adjacent area, further improving the optical performance of the signal transmission area 22 to meet the requirements of advanced autonomous driving technology.

[0066] Furthermore, the gas pressure in the air chamber 133 is 0~6 MPa, specifically for example, 0, or 0.5 MPa, or 1 MPa, or 1.5 MPa, or 2 MPa, or 2.5 MPa, or 3 MPa, or 3.5 MPa, or 4 MPa, or 4.5 MPa, or 5 MPa, or 5.5 MPa, or 6 MPa, etc.

[0067] Please refer to this as well. Figures 1-4In another embodiment, the mating part 132 includes a bracket 1321 and a contact layer 1322. The bracket 1321 is disposed on the side of the support base 131 away from the base 11; the contact layer 1322 is disposed on the side of the bracket 1321 away from the base 11. The air cavity 133 is formed between the bracket 1321 and the contact layer 1322, and the contact layer 1322 is used to contact the signal transmission area 22.

[0068] The bracket 1321 is fixedly connected to the contact layer 1322, or the bracket 1321 and the contact layer 1322 are detachably connected. Optionally, the connection between the bracket 1321 and the contact layer 1322 includes, but is not limited to, threaded connection, snap-fit ​​connection, adhesive connection, and stitched connection. The contact layer 1322 covers the bracket 1321, forming an air cavity 133 between the bracket 1321 and the contact layer 1322. Optionally, the pipe 134 passes through the bracket 1321 and communicates with the air cavity 133.

[0069] During glass forming, the contact layer 1322 contacts the signal transmission area 22 to cooperate with the pressing of the glass plate 2, so that the glass plate 2 forms a concave surface.

[0070] Furthermore, the material of the contact layer 1322 is selected from flexible materials.

[0071] Furthermore, the material of the contact layer 1322 includes at least one of aluminum foil fiberglass composite cloth, ceramic fiber fabric, and basalt fiber.

[0072] Therefore, this embodiment selects a flexible material for the contact layer 1322 to avoid damage to the signal transmission area 22 during the pressing process. This improves both the fit between the signal transmission area 22 and the glass forming punch 31 and the optical performance of the signal transmission area 22, in order to meet the requirements of advanced autonomous driving technology.

[0073] Furthermore, the mating part 132 also includes a sealing layer, at least a portion of which is disposed on the side of the contact layer 1322 facing the bracket 1321.

[0074] For example, the sealing layer covers the side of the contact layer 1322 facing the bracket 1321. Alternatively, the sealing layer may cover the entire surface of the contact layer 1322.

[0075] Furthermore, the sealing layer includes at least one of silicate-based sealing coating, yttrium oxide ceramic coating, zirconia ceramic coating, and aluminum phosphate and silica sol composite coating.

[0076] Therefore, this embodiment improves the airtightness of the contact layer 1322 and the support 1321 by defining a sealing layer, thereby improving the airtightness of the air cavity 133 and thus improving the reliability of the glass forming die 1.

[0077] Furthermore, the second projected area of ​​the contact layer 1322 in the vertical direction is larger than the area of ​​the signal transmission region 22.

[0078] Specifically, the portion of the second projected area that is larger than the area of ​​the signal transmission region 22 accounts for 5% to 50% of the area of ​​the signal transmission region 22. For example, it can be 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50%.

[0079] Vertical direction, such as Figure 3 Shown in the middle direction D.

[0080] It can also be understood that the second projected area of ​​the contact layer 1322 in the arrangement direction from the base 11 to the signal transmission area suppression part 13 is larger than the area of ​​the signal transmission area 22.

[0081] This embodiment limits the relationship between the second projected area and the area of ​​the signal transmission area 22, thereby ensuring that the contact layer 1322 can not only cover the signal transmission area 22, but also cover the adjacent area of ​​the signal transmission area 22, such as the printed area adjacent to the signal transmission area 22. This avoids a large difference in pressure between the signal transmission area 22 and its adjacent area, further improving the optical performance of the signal transmission area 22 to meet the requirements of advanced autonomous driving technology.

[0082] Furthermore, the contact layer 1322 has a contact surface for contacting the signal transmission region 22. The similarity between the contact surface and the glass substrate surface to be pressed corresponding to the signal transmission region 22 is 70% to 90%, specifically, for example, 70%, 72%, 74%, 76%, 78%, 80%, 82%, 84%, 86%, 88%, or 90%, etc.

[0083] Therefore, this embodiment further improves the fit between the signal transmission area 22 and the glass forming punch 31 by limiting the surface similarity between the contact surface and the surface to be pressed, thereby further improving the optical performance of the signal transmission area 22 to meet the requirements of advanced autonomous driving technology.

[0084] In one embodiment, the structural strength of the base 11 is greater than the structural strength of the peripheral area pressing part 12.

[0085] Therefore, this embodiment reduces the risk of damage to the glass forming die 1 by limiting the structural strength of the base 11 to be greater than the structural strength of the surrounding pressing part 12, thereby improving the reliability of the glass forming die 1 and the glass forming punch 31 pressing the glass plate 2 towards each other.

[0086] And / or, the hardness of the portion of the peripheral area pressing part 12 used to contact the peripheral area 21 is greater than the hardness of the portion of the signal transmission area pressing part 13 used to contact the signal transmission area 22.

[0087] Optionally, the material of the peripheral area pressing part 12 in contact with the peripheral area 21 is selected from pure metals, alloys, etc. The material of the signal transmission area pressing part 13 in contact with the signal transmission area 22 is selected from flexible materials.

[0088] Optionally, the peripheral area suppression part 12 contacts the shielding layer on the glass plate 2, and the signal transmission area suppression part 13 directly contacts the signal transmission area 22 of the glass plate 2.

[0089] Therefore, by limiting the hardness of the contact portion between the peripheral area pressing part 12 and the signal transmission area pressing part 13 and the glass plate 2, this embodiment can not only improve the reliability of the peripheral area pressing part 12 in pressing the glass plate 2, which is beneficial to the curved surface forming of the entire glass plate 2, but also avoid the contact layer 1322 from damaging the signal transmission area 22 during the pressing process, thereby improving the optical performance of the signal transmission area 22 to meet the requirements of advanced autonomous driving technology.

[0090] Please refer to this as well. Figures 1-5 In another embodiment, the glass forming die 1 further includes an adjustment component 14, which connects the base 11 and the peripheral pressing part 12, and is used to adjust the distance between the peripheral pressing part 12 and the base 11.

[0091] Specifically, the adjustment component 14 can move the position of the peripheral pressing part 12, thereby changing the vertical distance between the peripheral pressing part 12 and the base 11, and thus changing the curvature of the concave surface of the glass plate 2 pressed by the glass forming die 1.

[0092] Furthermore, the adjustment assembly 14 includes a movable member 141 and a fixed member 142. One end of the movable member 141 passes through the base 11 and is rotatable relative to the base 11; one end of the fixed member 142 is fixed to the peripheral area pressing part 12, and the other end of the fixed member 142 is kinetically connected to the other end of the movable member 141.

[0093] When the movable member 141 rotates relative to the base 11, the movable member 141 drives the fixed member 142 to move, thereby driving the peripheral area pressing part 12 to move relative to the base 11.

[0094] Optionally, the base 11 is provided with multiple through holes, and one end of the movable member 141 is embedded in the through hole.

[0095] Optionally, the other end of the fixed member 142 is rotatably connected to the other end of the movable member 141, or slidably connected. Optionally, the other end of the fixed member 142 is indirectly connected to the other end of the movable member 141 through other components.

[0096] Optionally, the other end of the fastener 142 is connected to the other end of the movable part 141 by a thread.

[0097] The user can rotate the movable part 141 to pull the fixed part 142 up or down, which in turn drives the surrounding area pressing part 12 up or down.

[0098] Therefore, by setting the adjustment component 14, the position of the peripheral pressing part 12 can be adjusted, thereby changing the curvature of the concave surface of the glass plate 2 pressed by the glass forming die 1, so as to adapt to various types of glass plates 2, expand the application range of the glass forming die 1, and improve the flexibility of the glass forming die 1.

[0099] Please refer to this as well. Figures 1-7 This application also provides a glass forming apparatus 3, which includes a glass forming punch 31 and a glass forming die 1 as described above.

[0100] The glass forming punch 31 is used to form the convex surface of the glass plate 2, and the glass forming die 1 is used to form the concave surface of the glass plate 2. The two cooperate with each other to complete the glass forming of the glass plate 2.

[0101] Therefore, the glass forming equipment 3 provided in this embodiment adopts the glass forming die 1 provided in this application. The glass forming die 1 is provided with a signal transmission area pressing part 13, which can independently adjust the pressing state of the glass plate 2 on the signal transmission area 22 during the forming process, thereby improving the fit between the signal transmission area 22 and the glass forming punch 31, and thus improving the optical performance of the signal transmission area 22 to meet the requirements of advanced autonomous driving technology.

[0102] Please refer to this as well. Figures 1-7 This application also provides a glass forming method, the glass forming method comprising: S100 provides a glass plate to be processed, a glass forming die 1 and a glass forming punch 31 as described above in this application.

[0103] S200, the glass forming concave mold 1 and the glass forming convex mold 31 are positioned on opposite sides of the glass plate to be processed and pressed against each other; wherein, the peripheral area pressing part 12 is used to contact the peripheral area 21 of the glass plate to be processed, and the signal transmission area pressing part 13 contacts the signal transmission area 22 of the glass plate to be processed.

[0104] S300, the glass plate to be processed is formed into a glass plate 2 having a convex surface and a concave surface.

[0105] Specifically, firstly, gas is introduced into the air chamber 133 of the mating part 132, and the gas pressure is between 0 and 6 MPa, which can be adjusted according to the pressing state.

[0106] Then, the glass plate to be processed is heated to 600℃~630℃, and the heated glass plate to be processed is transferred to the forming position. At this time, the glass forming cavity 1 is located below the glass plate to be processed, and the glass forming punch 31 is located above the glass plate to be processed.

[0107] Subsequently, the glass forming die 1 is raised so that the glass forming die 1 and the glass forming punch 31 are pressed together so that the glass sheet to be processed is pressed into shape.

[0108] During the processing of the glass plate to be processed, the signal transmission area pressing part 13 simultaneously presses the signal transmission area 22, so that the fit between the signal transmission area 22 and the glass forming punch 31 is better, thereby improving the optical performance of the signal transmission area 22.

[0109] In summary, the glass forming method provided in this embodiment, by employing the glass forming die 1 provided above in this application, the glass forming die 1 is provided with a signal transmission area pressing part 13, which can independently adjust the pressing state of the glass plate 2 on the signal transmission area 22 during the forming process, thereby improving the fit between the signal transmission area 22 and the glass forming punch 31, and further improving the optical performance of the signal transmission area 22 to meet the requirements of advanced autonomous driving technology.

[0110] Unless otherwise stated or in case of conflict, the terms or phrases used in this application shall have the following meanings: In this application, terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0111] In this application, "one or more" refers to any one, any two, or any two or more of the listed items. "Several" refers to any two or more.

[0112] In this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0113] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0114] In this application, the terms "embodiment" and "implementation" mean that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of these phrases in various locations throughout the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art will understand, explicitly and implicitly, that the embodiments described in this application can be combined with other embodiments. Furthermore, it should be understood that the features, structures, or characteristics described in the various embodiments of this application can be arbitrarily combined to form yet another embodiment that does not depart from the spirit and scope of the technical solution of this application, provided there is no contradiction between them.

[0115] The above description represents some embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

Claims

1. A glass forming die, characterized in that, The glass forming die is used for pressing and forming a glass plate. The glass plate includes a peripheral region and a signal transmission region, wherein the signal transmission region is located within the peripheral region. The glass forming die includes: Base; A peripheral pressing part is provided on the base, and the peripheral pressing part is arranged in a ring shape for contacting the peripheral area; A signal transmission area suppression part is provided on the base, and the signal transmission area suppression part is located inside the peripheral suppression part for contacting the signal transmission area.

2. The glass forming die as described in claim 1, characterized in that, The signal transmission region suppression section includes: A support base is provided on the base; A mating part is provided on the side of the support seat away from the base. The mating part has an air cavity for containing gas and is used to contact the signal transmission area.

3. The glass forming die as described in claim 2, characterized in that, The shape of the air cavity wall matches the shape of the signal transmission area; And / or, the curvature of the mating portion used to contact the signal transmission area is the same as the curvature of the glass forming punch at the corresponding position.

4. The glass forming die as described in claim 2, characterized in that, The first projected area of ​​the cavity wall in the vertical direction is larger than the area of ​​the signal transmission region.

5. The glass forming die as described in claim 4, characterized in that, The portion of the first projected area that is larger than the area of ​​the signal transmission region accounts for 5% to 50% of the area of ​​the signal transmission region.

6. The glass forming die as described in claim 2, characterized in that, The gas pressure inside the air chamber is 0~6 MPa.

7. The glass forming die as described in claim 2, characterized in that, The mating part includes: A bracket is provided on the side of the support base opposite to the base; A contact layer is provided on the side of the bracket away from the base, and the air cavity is formed between the bracket and the contact layer. The contact layer is used to contact the signal transmission area.

8. The glass forming die as described in claim 7, characterized in that, The material of the contact layer is selected from flexible materials.

9. The glass forming die as described in claim 8, characterized in that, The material of the contact layer includes at least one of aluminum foil fiberglass composite cloth, ceramic fiber fabric, and basalt fiber.

10. The glass forming die as described in claim 7, characterized in that, The mating part further includes a sealing layer, at least a portion of which is disposed on the side of the contact surface facing the bracket.

11. The glass forming die as described in claim 10, characterized in that, The sealing layer includes at least one of silicate-based sealing coating, yttrium oxide ceramic coating, zirconia ceramic coating, and aluminum phosphate and silica sol composite coating.

12. The glass forming die as described in claim 7, characterized in that, The second projected area of ​​the contact layer in the vertical direction is larger than the area of ​​the signal transmission region.

13. The glass forming die as described in claim 12, characterized in that, The portion of the second projected area that is larger than the area of ​​the signal transmission region accounts for 5% to 50% of the area of ​​the signal transmission region.

14. The glass forming die as described in claim 7, characterized in that, The contact layer has a contact surface for contacting the signal transmission area, and the surface similarity between the contact surface and the glass substrate surface to be pressed corresponding to the signal transmission area is 70% to 90%.

15. The glass forming die as described in claim 1, characterized in that, The structural strength of the base is greater than the structural strength of the surrounding area pressing part; And / or, the hardness of the portion of the peripheral area pressing part used to contact the peripheral area is greater than the hardness of the portion of the signal transmission area pressing part used to contact the signal transmission area.

16. The glass forming die as described in claim 1, characterized in that, The contact width between the pressing part of the peripheral area and the peripheral area is 5mm~20mm.

17. The glass forming die as described in claim 1, characterized in that, The glass forming die further includes an adjustment component, which connects the base and the peripheral pressing part, and is used to adjust the distance between the peripheral pressing part and the base.

18. The glass forming die as described in claim 17, characterized in that, The adjustment component includes: A movable component, one end of which passes through the base, is capable of rotating relative to the base; The fixing member has one end fixed to the pressing part of the peripheral area, and the other end of the fixing member is connected to the other end of the movable member in a transmission connection. When the movable member rotates relative to the base, the movable member drives the fixed member to move, thereby causing the peripheral pressing part to move relative to the base.

19. A glass forming device, characterized in that, The glass forming equipment includes a glass forming punch and a glass forming die as described in any one of claims 1-18.

20. A glass forming method, characterized in that, The glass forming method includes: Provides a glass plate to be processed, a glass forming die as described in claim 1, and a glass forming punch; The glass forming concave mold and the glass forming convex mold are positioned on opposite sides of the glass plate to be processed and pressed against each other; wherein, the peripheral area pressing part is used to contact the peripheral area of ​​the glass plate to be processed, and the signal transmission area pressing part contacts the signal transmission area of ​​the glass plate to be processed. The glass plate to be processed is formed into a glass plate with convex and concave surfaces.

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