Glass hot bending production line
By designing a glass hot bending production line including self-weight preforming station, integral molding station and cooling and discharge station, the problems of heating unevenness and lack of automated production lines in the production of super-large-sized and super-radian automotive 3D curved glass are solved. An efficient and automated production process has been achieved.
Patent Information
- Application Number
- CN202323533860.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2033-12-22
AI Technical Summary
The prior art is difficult to effectively produce ultra-large-size and large-spark automotive 3D curved glass, mainly because traditional glass thermoforming equipment cannot achieve uniformity in heating temperature and lacks an automated production line that integrates multiple processes.
A glass hot bending production line is designed, including a moving mechanism, a self-weight preforming station, a complete forming station and a cooling and discharge station. Through the combination of the upper preheating device and the glass forming device, uniform heating and molding of the glass sheet is achieved. This production line uses self-weight and continuous heating to suit the production of super-large curved glass. After self-weight preforming and complete forming, the finished curved glass is seamlessly connected to the cooling and discharge station, realizing the thermoformed glass Cooling and physical enhancement.
The automatic production of super-large-sized curved glass has been realized, which solves the problem of heating inhomogeneity, and reduces energy consumption and production costs through integrated thermoforming and strengthening processes.
Smart Images
Figure CN222434330U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of glass forming, and specifically relates to a glass hot bending production line. Background Art
[0002] Since 3D curved glass has special advantages in visual effects and excellent touch feel, it is widely used in consumer electronics, new energy vehicles, smart homes, construction and other fields. The size of the 3D curved glass currently used is getting larger and larger, and the curves are becoming more and more complex, such as the 3D windshield of new energy vehicles. However, in the process of making such "super-large-sized and super-curved 3D curved glass for vehicles", due to its large size, it is impossible to use traditional small-sized glass thermoforming equipment for production, because traditional small-sized glass thermoforming equipment uses a heating mold, and then transfers heat to the glass plate through the forming mold to heat up and soften the glass plate, and the thickness of each part of the mold is different, which will cause uneven temperature changes in the glass plate. In addition, since the production process of "super-large-sized and super-curved 3D curved glass for vehicles" includes thermoforming and strengthening, and the large size of the glass will cause the space occupied by the equipment for producing such glass to be large, there is currently no automated production line for "super-large-sized and super-curved 3D curved glass for vehicles" that integrates multiple processes. Summary of the invention
[0003] The purpose of this application is to provide a glass hot bending production line to achieve the production of ultra-large size and ultra-large curvature curved glass.
[0004] In order to achieve the above-mentioned purpose, the present application provides a glass hot bending production line, including a moving mechanism and a self-weight preforming station, a shaping station and a cooling and discharging station arranged in sequence;
[0005] The self-weight preforming machine is located at the upper part and is equipped with an upper preheating device, and the shaping molding machine is located at the upper part and is equipped with a glass forming device;
[0006] The moving mechanism comprises a lower preheating device and an upper mold heating furnace which are arranged in series and can move; the distance between the lower preheating device and the upper mold heating furnace is adapted to the distance between the upper preheating device and the glass forming device; and the cooling and discharging station is arranged at the discharging end of the shaping and forming station.
[0007] In some embodiments, the lower preheating device includes a preheating and insulation furnace, a hollow lower mold and an auxiliary heating mechanism. The preheating and insulation furnace is an open furnace body adapted to the upper preheating device; the hollow lower mold and the auxiliary heating mechanism are both arranged in the furnace body; the upper end of the hollow lower mold has an open end for supporting the glass plate, and the end face of the open end is a concave contoured arc surface; the auxiliary heating mechanism is distributed below the contoured arc surface.
[0008] In some embodiments, the auxiliary heating mechanism includes: a refractory brick base, the hollow lower mold is supported on the refractory brick base, and the refractory brick base forms an arc-shaped concave surface on the side facing the hollow lower mold; a heating component, including a plurality of resistance wires that can independently control heating, and the plurality of resistance wires are arranged in sequence and side by side on the arc-shaped concave surface of the refractory brick base.
[0009] In some embodiments, the upper preheating device includes a frame, a first lifting mechanism and a preheating infrared radiation array, the first lifting mechanism is arranged on the frame; the preheating infrared radiation array is connected to the lifting end of the first lifting mechanism and can be covered or separated from the lower preheating device during the lifting process.
[0010] In some embodiments, a glass forming apparatus comprises:
[0011] The shaping upper die has a convex spherical surface with an adsorption function at the bottom, and the convex spherical surface is adapted to the curvature of the finished product;
[0012] The upper die heating mechanism is located in the shaping upper die and acts on the convex spherical surface.
[0013] In some embodiments, the upper mold heating furnace comprises:
[0014] The contouring infrared radiation array has a concave arc heating surface matched with the convex spherical surface of the shaping upper mold; the water cooling modules are arranged on both sides of the contouring infrared radiation array.
[0015] In some embodiments, the glass forming apparatus further comprises:
[0016] The second lifting mechanism is arranged on the upper part of the shaping and forming station, and the lifting end of the second lifting mechanism is connected to the glass forming device.
[0017] In some embodiments, the second lifting mechanism includes a frame, a mounting base, and a plurality of telescopic arms;
[0018] Wherein, a plurality of telescopic arms are distributed correspondingly to the corners of the mounting base;
[0019] The fixed end of each telescopic arm is detachably connected to the frame body, and the movable end of each telescopic arm is connected to an angle adjustment structure capable of multiple angle adjustments, and the ends of some or all of the angle adjustment structures are also connected to a cross rail assembly;
[0020] The cross rail assembly is connected to the corresponding corners; the angle adjustment structure without the cross rail assembly is directly connected to the corresponding corner.
[0021] In some embodiments, the glass hot bending production line also includes a protective insulation station and a conveying track, the conveying track passes through the self-weight preforming station and the shaping molding station, and extends into the protective insulation station; the upper mold heating furnace and the preheating insulation furnace are both slidably arranged on the conveying track; when the shaping upper mold is preheated, the upper mold heating furnace moves to the protective insulation station.
[0022] In some embodiments, the cooling and discharging station includes a cooling telescopic line and a cooling unloading line arranged in sequence along the discharging direction of the finished curved glass, and the material taking end of the cooling telescopic line can be moved below the glass forming device.
[0023] Through the above technical solution, the glass hot bending production line provided in the embodiment of the present application has the following beneficial effects:
[0024] Aiming at the production of ultra-large-sized ultra-large-radius curved glass, the present application proposes a new glass hot bending production line, including a moving mechanism and a self-weight preforming station, a shaping and forming station and a cooling and discharging station arranged in sequence; an upper preheating device is arranged below the self-weight preforming station, and a glass forming device is arranged above the shaping and forming station. During the production of glass sheets, when the lower preheating device in the moving mechanism carries the glass sheet and moves it to the bottom of the upper preheating device for self-weight concave preforming into spherical semi-finished glass, the upper mold heating furnace in the moving mechanism moves synchronously to the bottom of the glass forming device and heats the glass forming device. After the self-weight preforming is completed, the lower preheating device carries the spherical semi-finished glass and moves it to the bottom of the glass forming device and shapes and heats it into finished curved glass. At this time, the upper mold heating furnace moves away from the glass forming device synchronously, and finally the finished curved glass is cooled and discharged at the cooling and discharging station. The present application utilizes a self-weight preforming station and a shaping station to preheat and shape the glass sheets in turn, and utilizes self-weight and continuous heating to be suitable for the production of ultra-large-sized, ultra-large-curved curved glass. In addition, the present application seamlessly connects the obtained finished curved glass directly to the cooling and discharging station after self-weight preforming and shaping, which not only completes the cooling of the glass after hot forming, but also utilizes direct air cooling of the softened glass after hot forming for physical strengthening, which reduces the strengthening process and energy consumption, and realizes the automated production of ultra-large-sized, ultra-large-curved curved glass with integrated hot forming and strengthening.
[0025] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:
[0027] Figure 1 This is a schematic diagram of the structure of a glass hot bending production line in an embodiment of the present application;
[0028] Figure 2 It is a structural schematic diagram of glass flow in a glass hot bending production line in an embodiment of the present application;
[0029] Figure 3 It is a schematic diagram of the exploded structure of the glass hot bending production line in the embodiment of the present application;
[0030] Figure 4 This is a schematic diagram of the structure of the glass sheet in the embodiment of the present application before the self-weight preforming begins;
[0031] Figure 5 This is a schematic diagram of the structure of the glass sheet in the embodiment of the present application after the self-weight preforming is completed;
[0032] Figure 6 It is a schematic structural diagram of the lower preheating device in the glass hot bending production line in the embodiment of the present application;
[0033] Figure 7 It is a schematic diagram of the structure of the moving mechanism in the glass hot bending production line in the embodiment of the present application;
[0034] Figure 8 It is a schematic structural diagram of the upper preheating device in the glass hot bending production line in the embodiment of the present application;
[0035] Fig. 9 It is a structural schematic diagram of a glass forming device in a glass hot bending production line in an embodiment of the present application;
[0036] Fig.10 It is a partial structural schematic diagram of the second lifting mechanism in the glass hot bending production line in the embodiment of the present application;
[0037] Fig.11 This is a schematic diagram of the exploded structure of a cooling telescopic line in a glass hot bending production line in an embodiment of the present application;
[0038] Fig.12 It is a structural schematic diagram of a glass hot bending production line in an embodiment of the present application when a cooling telescopic wire body is extended;
[0039] Fig.13It is a schematic diagram of the structure when the cooling telescopic wire body is retracted in the glass hot bending production line in the embodiment of the present application;
[0040] Fig.14 It is a schematic structural diagram of a cooling and unloading line in a glass hot bending production line in an embodiment of the present application;
[0041] Fig.15 It is a schematic diagram of the structure of the protective cover device in the glass hot bending production line in the embodiment of the present application.
[0042] Description of Reference Numerals
[0043] 1 Self-weight preforming station 321 Second support frame
[0044] 10 Upper preheating device 8 Glass sheet
[0045] 101 frame 322 unloading roller assembly
[0046] 102 first lifting mechanism 323 secondary cooling component
[0047] 103 Preheating infrared radiation array 4 moving mechanism
[0048] 2 Shaping station 40 Lower preheating device
[0049] 20 Glass forming device 401 Preheating and holding furnace
[0050] 201 plastic upper mold 402 hollow lower mold
[0051] 2011 Convex spherical surface 403 auxiliary heating mechanism
[0052] 203 Second lifting mechanism 4031 Refractory brick base
[0053] 2031 frame 4032 heating component
[0054] 2032 Mounting seat 41 Upper mold heating furnace
[0055] 2033 telescopic arm 411 base plate
[0056] 2034 Cross rail assembly 412 side panel
[0057] 2035 lifting connection seat 413 contour infrared radiation array
[0058] 3 Cooling and discharging station 414 Water cooling module
[0059] 31 Cooling telescopic line 5 Protective insulation station
[0060] 311 first support frame 51 protective cover device
[0061] 3111 Conveyor rail 511 Mounting bracket
[0062] 312 conveyor roller assembly 512 protective rib plate
[0063] 3121 transfer plate 513 water cooling plate
[0064] 3122 Drive chain 514 Protective heat shield
[0065] 313 Primary cooling assembly 6 Conveyor track
[0066] 32 Cooling and unloading line 7 Loading station DETAILED DESCRIPTION
[0067] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.
[0068] The glass hot bending production line according to the present application is described below with reference to the accompanying drawings.
[0069] like Figures 1 to 3 As shown, the first aspect of the present application provides a glass hot bending production line, comprising a moving mechanism 4 and a self-weight preforming station 1, a shaping molding station 2 and a cooling and discharging station 3 arranged in sequence, wherein the cooling and discharging station 3 is arranged at the discharging end of the shaping molding station 2; the self-weight preforming station 1 is provided with an upper preheating device 10 at the upper part, and the shaping molding station 2 is provided with a glass forming device 20 at the upper part; the moving mechanism 4 comprises a lower preheating device 40 and an upper mold heating furnace 41 which are arranged in series and can move; the distance between the lower preheating device 40 and the upper mold heating furnace 41 is adapted to the distance between the upper preheating device 10 and the glass forming device 20, when the lower preheating device 40 moves to below the upper preheating device 10, the upper mold heating furnace 41 moves synchronously to below the glass forming device 20; when the lower preheating device 40 moves away from the upper preheating device 10 or moves to below the glass forming device 20, the upper mold heating furnace 41 moves synchronously away from the glass forming device 20.
[0070] During the production process of the glass plate 8, first, the lower preheating device 40 carries the glass plate 8 and moves to the bottom of the upper preheating device 10. The lower preheating device 40 and the upper preheating device 10 heat the upper and lower surfaces of the glass plate 8 at the same time. The heated glass plate 8 is preformed into a spherical semi-finished glass by self-weight concave. The upper mold heating furnace 41 in the moving mechanism 4 is synchronously moved to the bottom of the glass forming device 20 and preheats the glass forming device 20. Then, after the self-weight preforming of the glass plate 8 is completed, the lower preheating device 40 carries the spherical semi-finished glass and moves to the bottom of the glass forming device 20 and shapes and heats it into a finished curved glass. At this time, the upper mold heating furnace 41 is synchronously moved away from the bottom of the glass forming device 20. Finally, the finished curved glass is cooled and discharged at the cooling and discharging station 3. The present application uses the self-weight preforming station 1 and the shaping and forming station 2 to preheat and shape the glass plate 8 in sequence. The use of self-weight and continuous heating can avoid uneven heating, so it is suitable for the production of ultra-large size and ultra-large arc curved glass. In addition, the present application directly and seamlessly connects the finished curved glass to the cooling and discharging station after self-weight preforming and shaping, which not only completes the cooling of the glass after hot forming, but also physically strengthens it by direct air cooling due to the softening of the glass after hot forming, thereby reducing the strengthening process and energy consumption, and realizing the automated production of ultra-large-size and ultra-large-curvature curved glass with integrated hot forming and strengthening.
[0071] In some embodiments, the lower preheating device 40 includes a preheating and heat preservation furnace 401, a hollow lower mold 402 and an auxiliary heating mechanism 403. The preheating and heat preservation furnace 401 is an open furnace body adapted to the upper preheating device 10; the hollow lower mold 402 and the auxiliary heating mechanism 403 are both arranged in the furnace body. The hollow lower mold 402 is a metal concave mold with a hollowed-out middle portion, which is installed on the bottom wall of the furnace body. The upper end of the hollow lower mold 402 has an open end for carrying the glass plate 8, and the end face of the open end is a concave contoured arc surface; on the one hand, it is used to guide the self-weight bending of the glass plate 8 after being heated and softened during the self-weight preforming process of the glass plate 8 and to support the edge arc surface; on the other hand, it is used to support the softened spherical semi-finished glass during the transfer process and the forming process. The auxiliary heating mechanism 403 is distributed below the contoured curved surface and is used to auxiliary heat the bottom surface of the glass plate 8 supported on the contoured curved surface and to maintain the temperature of the softened spherical semi-finished glass during the transfer process.
[0072] Among them, Figure 6As shown, the auxiliary heating mechanism 403 includes a refractory brick base 4031 and a heating assembly 4032; the hollow lower mold 402 is supported on the refractory brick base 4031, and the refractory brick base 4031 forms an arc-shaped inner concave surface on the side facing the hollow lower mold 402; the heating assembly 4032 includes a plurality of resistance wires that can independently control heating, and the plurality of resistance wires are sequentially arranged side by side and spaced on the arc-shaped inner concave surface of the refractory brick base 4031, wherein each resistance wire can independently control the heating power and heating temperature. The present application can control the output heat of each resistance wire by controlling the output power thereof, so as to realize the control of the softening degree of different regions and different parts of the glass plate 8, thereby realizing the control of the arc surface and spherical surface and the curvature of the glass plate 8 generated by gravity and heat falling under the combined action of gravity and heat.
[0073] In addition, multiple temperature measuring thermocouples are installed on the side wall of the furnace body to monitor the air temperature in the furnace body. The side wall of the furnace body is a square frame structure and includes supporting sub-plates and water-cooled door plates stacked from the inside to the outside. A furnace door window is also opened on the side wall of the furnace body to facilitate observation of the interior.
[0074] like Figure 8 As shown, the upper preheating device 10 includes a frame 101, a first lifting mechanism 102 and a preheating infrared radiation array 103. The first lifting mechanism 102 is arranged on the frame 101; the preheating infrared radiation array 103 is connected to the lifting end of the first lifting mechanism 102, and can be covered or separated from the lower preheating device 40 during the lifting process.
[0075] like Figure 4 As shown, after the glass plate 8 is placed on the hollow lower mold 402, the self-weight preforming process starts to run; the first lifting mechanism 102 on the upper preheating device 10 drives the preheating infrared radiation array 103 to descend and cover the open part of the furnace body to form a closed furnace cavity. The straight radiation tube on the preheating infrared radiation array 103 starts to emit infrared rays, and the upper surface of the glass plate 8 is radiated and heated by infrared irradiation. At the same time, in the auxiliary heating mechanism 403, the high-power resistance wires arranged in sequence on the refractory brick base 4031 are synchronously started, heated up and heated, and the bottom surface of the glass plate 8 is baked and heated. Therefore, the preheating infrared radiation array 103 and the auxiliary heating mechanism 403 cooperate to form two upper and lower heating arrays that can control the heating power in different areas. For the positions and areas of the glass plate 8 that need to realize the arc surface or spherical surface of different curvatures, different heating powers are set according to the corresponding process requirements, so as to control the heating temperature and the degree of softening by heat at different positions and areas of the glass plate 8. As shown Figure 5As shown, in the self-weight preforming process, the curvature of the curved surface or spherical surface formed by the self-weight falling of the glass plate 8 at different positions and regions can be controlled during the self-weight falling process after softening. Through this self-weight preforming method, the glass plate 8 can be preformed by self-weight into a spherical semi-finished glass with a curvature of the curved surface and spherical surface very close to the convex curved surface of the glass forming device 20 through the preheating infrared radiation array 103 and the heating of the auxiliary heating mechanism 403.
[0076] The straight radiation tubes on the preheating infrared radiation array 103 are all controlled by independent heating controllers for heating power, so that the heating power of each straight radiation tube and high-power resistance wire can be individually adjusted according to the process requirements of different products.
[0077] After the self-weight preforming process is completed, the straight radiation tubes on the preheating infrared radiation array 103 are turned off, the emission of infrared rays is stopped, and the radiation heating of the spherical semi-finished glass is stopped. The first lifting mechanism 102 on the upper preheating device 10 controls the preheating infrared radiation array 103 to rise, and the lower surface of the preheating infrared radiation array 103 leaves the opening of the furnace body. The lower preheating device 40 in the moving mechanism 4 is moved from the "self-weight preforming station 1" position where the glass plate 8 is produced to the "shaping molding station 2" position. And during the transfer process, the auxiliary heating mechanism 403 in the preheating and insulation furnace 401 will continue to operate. The high-power resistance wire inside the auxiliary heating mechanism 403 will further increase its output heating power, so that the high-power resistance wire is heated to a higher temperature, and the spherical semi-finished glass obtained by self-weight preforming is baked and insulated to prevent the spherical semi-finished glass from hardening due to heat loss.
[0078] like Figure 7 As shown, the upper mold heating furnace 41 includes a bottom plate 411, a side plate 412, a contoured infrared radiation array 413 and a water cooling module 414; the side plates 412 are arranged on the bottom plate 411 and are in multiple numbers, and the multiple side plates 412 and the bottom plate 411 enclose a cavity with an open upper end, and the cavity structure closed on all sides can prevent the heat in the furnace from escaping to the outside of the furnace; the contoured infrared radiation array 413 is arranged in the cavity and has a concave arc heating surface; the water cooling module 414 is arranged on both sides of the contoured infrared radiation array 413, and the side plates 412 are provided with multiple water inlets and outlets connected to the water cooling module 414.
[0079] A cooling water channel is provided on the bottom plate 411 of the upper mold heating furnace 41 to prevent the heat in the upper mold heating furnace 41 from escaping to the bottom, and to provide water-cooled and heat-insulated protection for the components at the bottom of the upper mold heating furnace 41, so that the working temperature of the components at the bottom outside the preheating and insulation furnace 401 is at room temperature.
[0080] Specifically, the profiling infrared radiation array 413 is composed of a water cooling module 414 that is shaped according to the convex spherical surface 2011 of the glass forming device 20, and profiling radiation tubes arranged and installed on the profiling arc surface of the water cooling module 414, wherein each profiling radiation tube independently controls the heating power and heating temperature. The multiple profiling radiation tubes are used to heat the glass forming device 20 synchronously during the self-weight preforming process; and when the glass forming device 20 performs shaping and forming on the spherical semi-finished glass, the upper mold heating furnace 41 is transferred to the shaping and forming station 2, and the profiling infrared radiation array 413 compensates the softening temperature of the glass forming device 20 and the spherical semi-finished glass being shaped. In addition, the shaping temperature of different areas and different parts of the shaping upper mold 201 can also be controlled by controlling the output power of a single profiling radiation tube to ensure the uniformity of the shaping temperature on the convex curved surface of the glass forming device 20.
[0081] The contoured radiation tube is an infrared radiation tube that is contoured according to the convex spherical surface 2011 of the glass forming device 20. It is a specially customized standard part that can emit infrared rays to radiate and heat objects within the infrared coverage area. The contoured radiation tube is installed on the contoured curved surface of the water cooling module 414, and the power and temperature of each contoured radiation tube are independently controlled; it is used to heat the glass forming device 20 synchronously during the self-weight preforming process.
[0082] In addition, a circuit waterproof box is provided on the outer periphery of the upper mold heating furnace 41, which is used to install the wiring components and wiring cables of the contoured radiation tube in the upper mold heating furnace 41 and prevent the entry of cooling circulating water. In addition, in order to monitor the air temperature in the upper mold heating furnace 41 in real time, a plurality of temperature measuring thermocouples are also provided on the side plate 412.
[0083] In some embodiments, the glass forming device 20 includes a shaping upper mold 201 and an upper mold heating mechanism; the bottom surface of the shaping upper mold 201 is a convex spherical surface 2011 with an adsorption function, the convex spherical surface 2011 bulges outward in a direction away from the shaping upper mold 201, and the convex spherical surface 2011 is adapted to the curvature of the finished product; the upper mold heating mechanism is located in the shaping upper mold 201 and acts on the convex spherical surface 2011.
[0084] Among them, a plurality of tiny vacuum air holes are formed on the convex spherical surface 2011, and the shaping upper mold 201 is connected to a large vacuum pump outside. After the precision fine-tuning is completed, the vacuum pump connected to the shaping upper mold 201 is started, thereby providing strong adsorption force and vacuum suction capacity for the multiple vacuum air holes on the convex spherical surface 2011.
[0085] Preferably, the upper mold heating mechanism built into the shaping upper mold 201 can be a plurality of heating tubes, so as to achieve heating of the shaping upper mold 201 .
[0086] In some embodiments, the glass forming device 20 further includes a second lifting mechanism 203 disposed at the upper portion of the shaping and forming station 2 , and a lifting end of the second lifting mechanism 203 is connected to the glass forming device 20 .
[0087] like Fig.10 As shown, specifically, the second lifting mechanism 203 includes a frame 2031, a mounting seat 2032 and a plurality of telescopic arms 2033; wherein, the plurality of telescopic arms 2033 are distributed corresponding to the corners of the mounting seat 2032; the fixed end of each telescopic arm 2033 is detachably connected to the frame 2031, and the movable end of each telescopic arm 2033 is connected to an angle adjustment structure capable of multi-angle adjustment, and the ends of part or all of the angle adjustment structures are also connected to a cross guide rail assembly 2034; the cross guide rail assembly 2034 is connected to the corresponding corners; the angle adjustment structure not equipped with the cross guide rail assembly 2034 is directly connected to the corresponding corner.
[0088] Each telescopic arm 2033 can move in the height direction to adjust the position of the mounting seat 2032 in the height direction; the cross rail assembly 2034 can adjust the position of the mounting seat 2032 in the horizontal plane, and the angle adjustment structure can fine-tune the spatial angle of the mounting seat 2032. When the second lifting mechanism 203 of the present application is used to adjust the position of the mounting seat 2032, the multi-angle lifting adjustment on the four corners of the mounting seat 2032 can be achieved through the cooperation of the angle adjustment structure, the telescopic arm 2033 and the cross rail assembly 2034. In the glass forming process, the position adjustment of the shaping upper mold 201 in the height direction is driven by the mounting seat 2032, so as to ensure the mold closing accuracy of the shaping upper mold 201 and the hollow lower mold 402, thereby improving the fitting accuracy of the shaping upper mold 201 and the spherical semi-finished glass.
[0089] In some embodiments, the movable end of one telescopic arm 2033 is connected to the corresponding corner portion via an angle adjustment structure, and the movable ends of the remaining telescopic arms 2033 are connected to the corresponding corner portions via a cross rail assembly 2034 .
[0090] At one corner, the mounting seat 2032 is directly connected via an angle adjustment structure, and the mounting seat 2032 can be directly adjusted to a large angle or a small angle via the angle adjustment structure. At the other three corners, the angle adjustment structure is connected to the mounting seat 2032 via a cross rail assembly 2034, so that the mounting seat 2032 can be fine-tuned in a small range in the x and y linear directions, and the mounting seat 2032 can be adjusted to a large angle or a small angle at the same time.
[0091] In some embodiments, each telescopic arm 2033 includes a linear drive assembly and a lifting connection seat 2035, and the lifting connection seat 2035 is connected to the moving end of the linear drive assembly and is suitable for forming a telescopic end. When the moving end of the linear drive assembly moves in the height direction, it can drive the lifting connection seat 2035 to move, thereby realizing the telescopic movement of the entire telescopic arm 2033 in the height direction, so as to facilitate the height position adjustment of the mounting seat 2032.
[0092] In some embodiments, the angle adjustment structure includes a lifting hinge seat, one side of which is connected to the mounting seat 2032 or the cross rail assembly 2034 , and the other side is hinged to the bottom end of the lifting connection seat 2035 .
[0093] Preferably, if Fig. 9 As shown, the linear drive assembly is composed of four groups of servo screw mechanisms arranged at intervals. The servo screw mechanism is a common lifting drive mechanism in the prior art and will not be described in detail here. The servo screw mechanism drives the glass forming device 20 to move up and down, thereby driving the glass forming device 20 to move closer to or away from the hollow lower mold 402.
[0094] For ease of understanding, the entire glass forming process is described in detail below. Specifically, the glass forming process mainly includes the self-weight preforming process and the shaping process:
[0095] (1) Before the shaping process begins, the self-weight preforming and heating process of the shaping upper mold 201 needs to be completed:
[0096] Before the glass plate 8 is shaped, it will first undergo a self-weight preforming process to make the glass plate 8 fall down and become the desired spherical semi-finished glass. At the same time, the profiling radiation tubes on the profiling infrared radiation array 413 in the upper mold heating furnace 41 will irradiate and heat the convex spherical surface 2011 of the shaping upper mold 201 with infrared radiation. In addition, the heating tubes built into the shaping upper mold 201 are also started synchronously to heat the entire shaping upper mold 201, so that the temperature of the shaping upper mold 201 is raised to the softening temperature of the glass (generally about 500 to 800°C) before the shaping is performed, so as to prevent the shaping upper mold 201 in a low temperature state from absorbing the spherical semi-finished glass in a high temperature state during the shaping process, causing the spherical semi-finished glass to break.
[0097] (2) At the beginning of the shaping process, the moving mechanism 4 needs to transfer:
[0098] After the self-weight preforming / shaping upper mold 201 heating process is completed, the preheating and insulation furnace 401 moves to the shaping station 2, and the upper mold heating furnace 41 moves to the protective insulation station 5. In this process: the built-in heating tube in the shaping upper mold 201 will continue to operate to continuously heat and keep the shaping upper mold 201 warm. The contoured infrared radiation array 413 in the upper mold heating furnace 41 will be turned off and the heating will stop. The auxiliary heating mechanism 403 in the preheating and insulation furnace 401 will continue to heat, bake and keep warm the spherical semi-finished glass obtained by self-weight preforming, and prevent the spherical semi-finished glass from hardening due to heat loss.
[0099] (3) The movement process of the glass forming mechanism at the beginning of shaping:
[0100] After the preheating and holding furnace 401 completes the alignment with the glass forming device 20, the glass forming device 20 will control the lowering of the shaping upper mold 201 that has been heated to the glass softening temperature through the four sets of servo screw mechanisms of the second lifting mechanism 203. And through the fine-tuning function of the four sets of servo screw mechanisms, according to the process requirements, the horizontality of the shaping upper mold 201 based on the bottom plate 411 of the preheating and holding furnace 401 is adjusted to ensure the mold closing accuracy of the shaping upper mold 201 and the hollow lower mold 402 and the fitting accuracy of the convex curved surface of the shaping upper mold 201 and the spherical semi-finished glass. After completing the precision fine-tuning, the large vacuum pump connected to the shaping upper mold 201 is started to provide strong adsorption force and vacuum suction capacity for the tiny vacuum pores on the convex curved surface of the shaping upper mold 201. The glass forming device 20 controls the shaping upper mold 201 to continue to descend, and completes adsorption and bonding with the spherical semi-finished glass placed in the preheating and insulation furnace 401 and on the hollow lower mold 402, which is being baked and insulated by the auxiliary heating mechanism 403.
[0101] After the adsorption and bonding is completed, the semi-softened spherical semi-finished glass will eventually be tightly attached to the convex surface of the shaping upper mold 201 under the strong adsorption force provided by the large vacuum pump for the convex surface of the shaping upper mold 201. Then all heating devices will be turned off to cool down, and the spherical semi-finished glass will be tightly attached to the convex surface of the shaping upper mold 201 after being shaped, and gradually cooled and solidified into finished curved glass.
[0102] (4) After the shaping process is completed, the movement process of the temperature compensation process is:
[0103] When the spherical semi-finished glass has cooled and solidified before adsorption, or cooled and solidified before being completely formed during the adsorption process, and the spherical semi-finished glass cools and solidifies prematurely, the machine needs to be manually operated to make the machine enter the temperature compensation process. When the temperature compensation process starts, the glass forming device 20 will control the shaping upper mold 201 adsorbing the prematurely solidified spherical semi-finished glass through the 4 sets of servo screw mechanisms of the second lifting mechanism 203. The preheating and insulation furnace 401 returns to the self-weight preforming station 1, and the upper mold heating furnace 41 returns to the upper mold heating position. During this process, the preheating and insulation furnace 401 and the auxiliary heating mechanism 403 on the lower preheating device 40, the preheating infrared radiation array 103, etc. are all in a closed waiting state.
[0104] After the upper mold heating furnace 41 and the glass forming device 20 are aligned, the glass forming device 20 will control the shaping upper mold 201 to descend again through the four sets of servo screw mechanisms of the second lifting mechanism 203, and perform precision fine adjustment again. Then, the profiling radiation tubes on the profiling infrared radiation array 413 in the upper mold heating furnace 41 will restart to heat the pre-cured spherical semi-finished glass adsorbed on the shaping upper mold 201.
[0105] When the pre-solidified spherical semi-finished glass adsorbed on the shaping upper mold 201 is reheated to soften, it will eventually fit tightly on the convex curved surface under the continuous action of the adsorption force of the convex curved surface of the shaping upper mold 201. Then all heating devices will be turned off again to cool down, and the pre-solidified spherical semi-finished glass will eventually fit tightly on the convex curved surface of the shaping upper mold 201 after secondary heating and softening, and secondary shaping, and gradually cool and solidify into finished glass.
[0106] It should be noted that if the spherical semi-finished glass does not cool and solidify prematurely, it will directly enter the finished glass cooling and expansion line process after the shaping process is completed.
[0107] (5) After the shaping or temperature compensation process is completed:
[0108] If the spherical semi-finished glass has not been cooled and solidified prematurely, it will directly enter the process of transferring to the cooling and telescopic line of finished glass after shaping. If the spherical semi-finished glass has been cooled and solidified prematurely, it will enter the process of transferring to the cooling and telescopic line of finished glass after the temperature compensation process.
[0109] In some embodiments, the glass hot bending production line also includes a protective insulation station 5, a loading station 7 and a conveying track 6, one end of the conveying track 6 is connected to the loading station 7, and the other end passes through the self-weight preforming station 1 and the shaping molding station 2, so that the moving mechanism 4 can slide on the conveying track 6 and extend into the protective insulation station 5; the upper mold heating furnace 41 and the preheating and insulation furnace 401 are both slidably arranged on the conveying track 6; when the shaping upper mold 201 is preheated, the upper mold heating furnace 41 moves to the protective insulation station 5.
[0110] like Fig.15 As shown, in order to prevent personnel from accidentally falling into or actively entering the upper mold heating furnace 41 heated to a high temperature due to various factors, and to prevent personnel losses and safety accidents, a protective cover device 51 is provided on the protective insulation station 5. The protective cover device 51 includes a mounting frame 511 and a protective rib plate 512, a water cooling plate 513 and a protective insulation plate 514 which are arranged on the bottom surface of the mounting frame 511 and stacked from top to bottom, and a water cooling channel is provided inside the water cooling plate 513.
[0111] The protective ribs 512 are composed of a plurality of long strips of different lengths interlocked by a plurality of screws, and each of the long strips is detachably connected to the bottom surface of the mounting frame 511 to prevent the mounting frame 511 from being deformed by its own gravity and the gravity of the mounting parts thereon. The protective heat insulation board 514 and the water cooling board 513 form a protective heat insulation board group 514, which is used to provide heat insulation protection for the upper mold heating furnace 41 to prevent personal injury and safety accidents.
[0112] In addition, a fence is installed around the top of the mounting frame 511 to play a protective role. A protective guide rod and an adjustable stroke lifting cylinder are also provided on the top surface of the mounting frame 511. The protective guide rod passes through the mounting frame 511 and is connected to the protective rib plate 512. The lifting end of the lifting cylinder passes through the mounting frame 511 and drives the protective rib plate 512. When the lifting cylinder drives the protective rib plate 512 to move up and down, the protective guide rod guides the lifting movement. At the same time, in order to prevent the workstation from falling, an anti-fall locking block is also installed on the protective guide rod for safety protection.
[0113] In some embodiments, the cooling and discharging station 3 includes a cooling telescopic line 31 and a cooling unloading line 32 arranged in sequence along the discharging direction of the finished curved glass, and the material taking end of the cooling telescopic line 31 can be moved to below the glass forming device 20.
[0114] The present application performs primary and secondary cooling of the finished curved glass by means of the cooling telescopic wire 31 and the cooling unloading wire 32, respectively, and adopts the method of air cooling while transferring and moving to the unloading position, thereby realizing the production of ultra-large-size ultra-large-curvature curved glass. When performing the primary cooling, the material-collecting end of the cooling telescopic wire 31 extends to the bottom of the glass forming device 20, and the finished curved glass adsorbed under the glass forming device 20 stops adsorbing and falls onto the cooling telescopic wire 31 for primary cooling. After the primary cooling is completed, the finished curved glass moves along the cooling telescopic wire 31 to the cooling unloading wire 32 for secondary cooling, and the finished curved glass after the secondary cooling is manually unloaded at the discharge end of the cooling unloading wire 32.
[0115] like Fig.11 As shown, the cooling telescopic line 31 includes a first support frame 311, a conveying roller assembly 312 and a primary cooling assembly 313; the conveying roller assembly 312 runs through the first support frame 311, and the conveying roller assembly 312 is connected to the discharge end of the shaping station 2 and can be extended or retracted from the first support frame 311; the primary cooling assembly 313 is arranged on the first support frame 311, and the number of the primary cooling assembly 313 is two groups and they are respectively located above and below the conveying roller assembly 312.
[0116] In some embodiments, a conveying guide rail 3111 extending along the conveying direction is provided on the first support frame 311, and the conveying roller assembly 312 includes a transfer conveying plate 3121 and a transmission chain 3122; the transfer conveying plate 3121 is slidably disposed on the conveying guide rail 3111, and the transfer conveying plate 3121 includes a plate body and a plurality of conveying rollers arranged at intervals along the conveying direction, and the plurality of conveying rollers are synchronously connected by roller chains to ensure that the plurality of conveying rollers can rotate synchronously; the transmission chain 3122 is wound around the outer circumference of the plate body, and the transmission chain 3122 is transmission-connected to the transfer conveying plate 3121, so that the transmission chain 3122 is used to transmit power for the telescopic action of the transfer conveying plate 3121.
[0117] The transmission chain 3122 is driven by a telescopic motor, so that the entire transfer conveying plate 3121 can slide along the conveying guide rail 3111 under the drive of the transmission chain 3122, thereby controlling the extension or retraction of the transfer conveying plate 3121. Fig.12 As shown in FIG. 1 , it is a schematic diagram of the structure of the transfer conveying plate 3121 extending from the first support frame 311. Fig.13 , which is a schematic structural diagram of the transfer conveying plate 3121 retracted into the first support frame 311 .
[0118] like Fig.14As shown, the cooling unloading line 32 includes a second support frame 321, an unloading roller assembly 322 and a secondary cooling assembly 323; the unloading roller assembly 322 runs through the inside of the second support frame 321, and the conveying roller assembly 312 can extend onto the unloading roller assembly 322, and the unloading roller assembly 322 is connected to the discharge end of the conveying roller assembly 312 and conveys the finished curved glass; the secondary cooling assembly 323 is arranged on the second support frame 321, and the number of the secondary cooling assembly 323 is two groups and they are respectively located above and below the unloading roller assembly 322.
[0119] When the drum motor drives the unloading drum assembly 322 to rotate, the finished curved glass on the unloading drum assembly 322 can be air-cooled while being moved to the unloading position to wait for unloading.
[0120] The primary cooling assembly 313 and the secondary cooling assembly 323 are both a plurality of axial flow fans arranged side by side, the air outlets of the axial flow fans are all facing the roller assembly, and are divided into two rows, upper and lower, respectively located above and below the roller assembly, so as to air-cool the top and bottom surfaces of the finished curved glass on the roller assembly. Preferably, the number of axial flow fans in the primary cooling assembly 313 is greater than the number of axial flow fans in the secondary cooling assembly 323, so that the secondary cooling assembly 323 is equivalent to auxiliary cooling of the finished curved glass after being cooled by the primary cooling assembly 313, and achieves an ideal cooling effect while ensuring the lowest energy consumption.
[0121] The specific process of the present application applied to the glass hot bending production line as described above includes the following steps:
[0122] S10: Loading the glass plate 8 to the self-weight preforming station 1;
[0123] S20: heating the glass plate 8 into a spherical semi-finished glass by its own weight at the self-weight preforming station 1;
[0124] S30: The spherical semi-finished glass is transported to the shaping station 2, where it is shaped and heated into finished curved glass;
[0125] S40: conveying the finished curved glass to the cooling and discharging station 3 for cooling and then unloading.
[0126] In this embodiment, the present application utilizes the two glass forming processes of "self-weight preforming" and "shaping and heating forming" to obtain curved glass with a large size and target curvature. Compared with the forming method using a forming mold in the prior art, this forming method has better control over the curvature during the glass forming process and more uniform heating of the glass plate 8, which is suitable for the production of ultra-large size and ultra-large curvature curved glass.
[0127] In some embodiments, step S20 includes:
[0128] S21: moving the preheating and holding furnace 401 to the loading station 7, and placing the glass plate 8 on the hollow lower mold 402 of the preheating and holding furnace 401;
[0129] S22: driving the preheating and holding furnace 401 to move to the self-weight preforming station 1;
[0130] S23: Control the upper preheating device 10 to descend to seal and cover the preheating and holding furnace 401;
[0131] S24: The upper preheating device 10 and the auxiliary heating mechanism 403 are turned on simultaneously to heat the upper and lower surfaces of the glass plate 8 simultaneously, until the glass plate 8 falls down and is sunken into a spherical semi-finished glass with a target curvature.
[0132] In this embodiment, the preheating and holding furnace 401, the upper preheating device 10 and the auxiliary heating mechanism 403 cooperate to control the softening degree of different areas and parts of the glass plate 8 to the softening degree required in the self-weight preforming process, thereby achieving the control of the curvature of the arc surface and the spherical surface of the glass plate 8 generated by the gravity falling under the combined action of gravity and heat, so as to obtain a spherical semi-finished glass with a target curvature close to the convex surface of the shaping upper mold 201.
[0133] In some embodiments, step S30 includes:
[0134] S31: Control the upper mold heating furnace 41 to move to the bottom of the shaping upper mold 201, turn on the upper mold heating furnace 41 and the upper mold heating mechanism in the shaping upper mold 201, and preheat the shaping upper mold 201 to the glass softening temperature at the same time;
[0135] S32: After the glass plate 8 is preheated by its own weight into a spherical semi-finished glass, the preheating and insulation furnace 401 is driven to move to the shaping station 2, and at the same time, the upper mold heating furnace 41 moves to the protective insulation station 5 and stops heating;
[0136] S33: Control the shaping upper mold 201 that has been heated to the glass softening temperature to descend until the convex curved surface of the shaping upper mold 201 is completely in contact with the spherical semi-finished glass;
[0137] S34: Evacuate the interior of the shaping upper mold 201 to closely adhere the spherical semi-finished glass to the convex curved surface of the shaping upper mold 201, and solidify it into a finished curved glass.
[0138] In this embodiment, by shaping and heating the spherical semi-finished glass, the convex surface of the shaping upper mold 201 can be used to correct the spherical curvature of the spherical semi-finished glass, and the finished curved glass obtained after being heated by the shaping upper mold 201 and the preheating and insulation furnace 401 can be solidified to obtain the required finished large-size curved glass; in addition, this heating method makes the temperature of the entire finished curved glass more uniform, which is suitable for the production of ultra-large size and ultra-large curvature curved glass.
[0139] In some embodiments, step S40 includes:
[0140] S41: resetting the preheating and holding furnace 401 to the loading station 7, and resetting the upper mold heating furnace 41 to the self-weight preforming station 1;
[0141] S42: Control the telescopic roller line of the cooling telescopic line body 31 to extend to the bottom of the shaping upper mold 201;
[0142] S43: Stop evacuating the shaping upper mold 201, and the shaping upper mold 201 places the finished curved glass on the telescopic roller line;
[0143] S44: Control the telescopic roller line carrying the finished curved glass to retract to its original position, and cool the finished curved glass once;
[0144] S45: The telescopic roller line transports the finished curved glass after the primary cooling to the cooling unloading line 32 for secondary cooling and unloading.
[0145] In this embodiment, by extending and retracting the cooling telescopic wire 31, the function of automatically receiving and transporting the finished curved glass can be realized. The whole process does not require human intervention, which can improve the efficiency of glass production. In addition, by using the cooling telescopic wire 31 and the cooling blanking wire 32 to perform primary cooling and secondary cooling on the finished curved glass respectively, the hardness of the final finished curved glass can meet the target requirements and is suitable for large-scale automated production.
[0146] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0147] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0148] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0149] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.
Claims
1. A glass hot bending production line, characterized in that: It comprises a moving mechanism (4) and a self-weight preforming station (1), a shaping station (2) and a cooling and discharging station (3) which are arranged in sequence; The self-weight preforming station (1) is provided with an upper preheating device (10) at the top, and the shaping molding station (2) is provided with a glass molding device (20) at the top; The moving mechanism (4) comprises a lower preheating device (40) and an upper mold heating furnace (41) which are arranged in series and are capable of moving; the distance between the lower preheating device (40) and the upper mold heating furnace (41) is adapted to the distance between the upper preheating device (10) and the glass forming device (20); The cooling and discharging station (3) is arranged at the discharging end of the shaping and forming station (2).
2. The glass hot bending production line according to claim 1, characterized in that: The lower preheating device (40) comprises a preheating and heat preservation furnace (401), a hollow lower mold (402) and an auxiliary heating mechanism (403); the preheating and heat preservation furnace (401) is an open furnace body adapted to the upper preheating device (10); the hollow lower mold (402) and the auxiliary heating mechanism (403) are both arranged in the furnace body; the upper end of the hollow lower mold (402) has an open end for supporting the glass plate (8); the end surface of the open end is a concave contoured arc surface; the auxiliary heating mechanism (403) is distributed below the contoured arc surface.
3. The glass hot bending production line according to claim 2, characterized in that: The auxiliary heating mechanism (403) comprises: A refractory brick base (4031), the hollow lower mold (402) is supported on the refractory brick base (4031), and the refractory brick base (4031) forms an arc-shaped inner concave surface on one side facing the hollow lower mold (402); The heating assembly (4032) includes a plurality of resistance wires capable of independently controlling heating, and the plurality of resistance wires are sequentially arranged side by side and spaced apart on the arc-shaped inner concave surface of the refractory brick base (4031).
4. The glass hot bending production line according to claim 1, characterized in that: The upper preheating device (10) comprises a frame (101), a first lifting mechanism (102) and a preheating infrared radiation array (103); the first lifting mechanism (102) is arranged on the frame (101); the preheating infrared radiation array (103) is connected to the lifting end of the first lifting mechanism (102) and can be covered or separated from the lower preheating device (40) during the lifting process.
5. The glass hot bending production line according to claim 2, characterized in that: The glass forming device (20) comprises: The shaping upper die (201) has a bottom surface which is a convex spherical surface (2011) having an adsorption function, and the convex spherical surface (2011) is adapted to the curvature of the finished product; An upper mold heating mechanism is located in the shaping upper mold (201) and acts on the convex spherical surface (2011).
6. The glass hot bending production line according to claim 5, characterized in that: The upper mold heating furnace (41) comprises: A contoured infrared radiation array (413) having an inwardly concave arc-shaped heating surface adapted to the convex spherical surface (2011) of the shaping upper die (201); The water cooling modules (414) are arranged on both sides of the contoured infrared radiation array (413).
7. The glass hot bending production line according to claim 1, characterized in that: The glass forming device (20) further comprises: The second lifting mechanism (203) is arranged on the upper part of the shaping and forming station (2), and the lifting end of the second lifting mechanism (203) is connected to the glass forming device (20).
8. The glass hot bending production line according to claim 7, characterized in that: The second lifting mechanism (203) comprises a frame (2031), a mounting seat (2032) and a plurality of telescopic arms (2033); Wherein, the plurality of telescopic arms (2033) are distributed correspondingly to the corners of the mounting seat (2032); The fixed end of each telescopic arm (2033) is detachably connected to the frame body (2031), and the movable end of each telescopic arm (2033) is connected to an angle adjustment structure capable of multiple angle adjustments, and the ends of some or all of the angle adjustment structures are also connected to a cross rail assembly (2034); The cross-guide rail assembly (2034) is connected to the corresponding corner portion; the angle adjustment structure not configured with the cross-guide rail assembly (2034) is directly connected to the corresponding corner portion.
9. The glass hot bending production line according to claim 5, characterized in that: The glass hot bending production line also includes a protective heat insulation station (5) and a conveying track (6), wherein the conveying track (6) passes through the self-weight preforming station (1) and the shaping molding station (2) and extends into the protective heat insulation station (5); the upper mold heating furnace (41) and the preheating and insulation furnace (401) are both slidably arranged on the conveying track (6); when the shaping upper mold (201) is preheated, the upper mold heating furnace (41) moves to the protective heat insulation station (5).
10. The glass hot bending production line according to any one of claims 1 to 9, characterized in that: The cooling and discharging station (3) comprises a cooling telescopic line (31) and a cooling unloading line (32) which are arranged in sequence along the discharging direction of the finished curved glass, and the material taking end of the cooling telescopic line (31) can be moved to below the glass forming device (20).