Curved glass bending equipment

Abstract

The present application provides a hot bending device for curved glass. The hot bending device for curved glass comprises a mounting platform, a hot bending furnace chamber, a turntable transmission structure, a hot bending structure and at least three molds. The hot bending furnace chamber is mounted on the mounting platform. The turntable transmission structure is arranged in the hot bending furnace chamber, and the turntable transmission structure is rotatably connected to the hot bending furnace chamber. The hot bending structure comprises a preheating mechanism, a forming mechanism and a cooling mechanism, and the preheating mechanism, the forming mechanism and the cooling mechanism are sequentially arranged on the hot bending furnace chamber along the transmission direction of the turntable transmission structure. The three molds are respectively arranged in one-to-one correspondence with the preheating mechanism, the forming mechanism and the cooling mechanism, and the three molds are sequentially arranged on the turntable transmission structure along the transmission direction of the turntable transmission structure. The hot bending device for curved glass as a whole occupies a small area and can realize the processing of special-shaped curved glass.

Description

Technical Field

[0001] The present invention relates to the technical field of glass processing, and in particular to a device for hot bending curved glass. Background Art

[0002] As 3D curved glass becomes more and more mature, the market recognition of 3D glass is also getting higher and higher. The entire production and processing process of processing a glass substrate into 3D curved glass mainly includes: engineering → cutting and opening → fine carving → grinding → cleaning (glass substrate) → hot bending → polishing → testing → tempering → UV transfer → coating (PVD) → printing (silk screen printing, spraying) → lamination → film lamination → packaging, etc. Hot bending is one of the most core processes in the 3D curved glass process and also one of the difficulties. The main process is: the glass substrate with fine carving of shape and holes is placed in a graphite mold, and then the graphite mold is placed in the hot bending equipment. After preheating, pressing and cooling, the glass substrate is formed into 3D curved glass in the mold. In the existing hot bending equipment, the structures for realizing preheating, pressing and cooling are arranged linearly in sequence to realize the assembly line processing of 3D curved glass, such as the Chinese invention patent application with application number 201710760155.9. It is conducive to the realization of automated processing of 3D curved glass, thereby effectively improving the processing efficiency of 3D curved glass, but the setting of the transmission structure and the structure for preheating, pressing and cooling arranged linearly along the transmission structure are all installed on the mounting table, which causes the overall length of the hot bending equipment to be longer, and for the processing of more complex special-shaped curved glass, it is necessary to transfer back and forth multiple times and re-enter the hot bending equipment for processing. For example, the Chinese invention patent application with application number 201911270356.6 has added a graphite mold reflow line. Although it is conducive to improving the automation of the processing of special-shaped curved glass, it still sets the structure for preheating, pressing and cooling on the workbench along the graphite mold reflow line, and also adds a graphite mold reflow line, causing the graphite mold reflow line to be distributed on the workbench together with the structure for preheating, pressing and cooling. This still makes the overall footprint of the hot bending equipment larger. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a curved glass bending device that has a small overall footprint and can realize the automation of the processing of special-shaped curved glass.

[0004] The object of the present invention is achieved through the following technical solutions:

[0005] A curved glass bending device, comprising:

[0006] Mounting table;

[0007] A heat bending furnace chamber, wherein the heat bending furnace chamber is mounted on the mounting platform;

[0008] A turntable transmission structure, the turntable transmission structure is arranged in the heat bending furnace chamber, and the turntable transmission structure is rotatably connected to the heat bending furnace chamber;

[0009] A hot bending structure, comprising a preheating mechanism, a forming mechanism, and a cooling mechanism, wherein the preheating mechanism, the forming mechanism, and the cooling mechanism are sequentially arranged on the hot bending furnace chamber along the transmission direction of the turntable transmission structure;

[0010] At least three molds are provided, and the three molds are respectively arranged in one-to-one correspondence with the preheating mechanism, the molding mechanism and the cooling mechanism, and the three molds are sequentially arranged on the turntable transmission structure along the transmission direction of the turntable transmission structure.

[0011] In one embodiment, the hot bending structure further includes a feeding and discharging mechanism, which is arranged between the cooling mechanism and the preheating mechanism, and the feeding and discharging mechanism, together with the preheating mechanism, the forming mechanism and the cooling mechanism, are sequentially arranged on the hot bending furnace chamber along the transmission direction of the turntable transmission structure;

[0012] There are four molds, and the four molds are respectively arranged in one-to-one correspondence with the feeding and discharging mechanism, the preheating mechanism, the molding mechanism and the cooling mechanism, and the four molds are arranged on the turntable transmission structure in sequence along the transmission direction of the turntable transmission structure.

[0013] In one embodiment, the preheating mechanism includes a first preheating component, a second preheating component and a third preheating component, and the first preheating component, the second preheating component, the third preheating component, the forming mechanism and the cooling mechanism are sequentially arranged on the hot bending furnace chamber along the transmission direction of the turntable transmission structure;

[0014] There are five molds, and the five molds are respectively arranged in one-to-one correspondence with the first preheating component, the second preheating component, the third preheating component, the molding mechanism and the cooling mechanism, and the five molds are arranged on the turntable transmission structure in sequence along the transmission direction of the turntable transmission structure.

[0015] In one embodiment, the cooling mechanism includes a first cooling assembly, a second cooling assembly, and a third cooling assembly, and the preheating mechanism, the forming mechanism, the first cooling assembly, the second cooling assembly, and the third cooling assembly are sequentially arranged on the hot bending furnace chamber along the transmission direction of the turntable transmission structure;

[0016] There are five molds, and the five molds are respectively arranged in one-to-one correspondence with the preheating mechanism, the molding mechanism, the first cooling assembly, the second cooling assembly and the third cooling assembly, and the five molds are arranged on the turntable transmission structure in sequence along the transmission direction of the turntable transmission structure.

[0017] In one embodiment, the hot bending structure further includes at least three temperature monitoring mechanisms, which are arranged in a one-to-one correspondence with the three molds, each of which is arranged throughout the hot bending furnace chamber, and each of which is arranged toward the corresponding mold.

[0018] In one embodiment, the hot bending structure further includes at least one inert gas concentration detector, and the inert gas concentration detector is disposed in the hot bending furnace chamber.

[0019] In one embodiment, the thermal bending structure further includes an inert gas circulation mechanism;

[0020] The inert gas circulation mechanism includes an inert gas input pipe and an inert gas output pipe, both of which are connected to the hot bending furnace chamber. The inert gas input pipe is used to connect to the air pump, and the inert gas output pipe is used to connect to the gas pressure relief valve.

[0021] In one embodiment, the mold is a graphite mold.

[0022] In one embodiment, the hot bending furnace chamber is provided with a thermal insulation layer, the thermal insulation layer is connected to the inner wall of the hot bending furnace chamber to form a thermal insulation zone, and the thermal insulation layer is respectively arranged corresponding to the preheating mechanism and the forming mechanism, and the molds arranged corresponding to the preheating mechanism and the forming mechanism are located in the thermal insulation zone.

[0023] In one embodiment, the heat bending furnace chamber is provided with at least one window, the window is covered with a sealing body, and the sealing body is detachably and tightly connected to the heat bending furnace chamber.

[0024] Compared with the prior art, the present invention has at least the following advantages:

[0025] The curved glass bending equipment of the present invention enables the three molds to be arranged in one-to-one correspondence with the preheating mechanism, the forming mechanism and the cooling mechanism respectively, and the three molds are arranged on the turntable transmission structure in sequence along the transmission direction of the turntable transmission structure, and the preheating mechanism, the forming mechanism and the cooling mechanism are arranged on the heat bending furnace chamber in sequence along the transmission direction of the turntable transmission structure, thereby realizing the reflow processing of the curved glass in a circular transmission manner, thereby realizing the automation of the processing of special-shaped curved glass and avoiding the addition of reflow lines. The preheating mechanism, the forming mechanism and the cooling mechanism are arranged in a circular manner in the heat bending furnace chamber, effectively realizing the miniaturization of the overall structure of the curved glass bending equipment, that is, the curved glass bending equipment occupies a smaller area, and better improving the usability of the curved glass bending equipment for different scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic structural diagram of a curved glass bending device according to one embodiment of the present invention;

[0028] Figure 2 for Figure 1 A partial enlarged view of point A of the curved glass bending equipment shown;

[0029] Figure 3 for Figure 1 A partial view of the curved glass bending equipment shown;

[0030] Figure 4 for Figure 1 A partial cross-sectional view of a curved glass bending apparatus shown;

[0031] Figure 5 for Figure 1 Another partial cross-sectional view of the curved glass bending apparatus shown;

[0032] Figure 6 for Figure 1 Another schematic diagram of the structure of the curved glass bending equipment shown;

[0033] Figure 7 for Figure 1 Another partial cross-sectional view of the curved glass bending apparatus shown;

[0034] Figure 8 for Figure 7A partial cross-sectional view at point B of the curved glass bending equipment shown;

[0035] Figure 9 for Figure 7 A partial cross-sectional view at point C of the curved glass bending equipment shown;

[0036] Figure 10 for Figure 1 Another partial view of the curved glass bending equipment shown;

[0037] Figure 11 for Figure 1 Another partial view of the curved glass bending equipment shown

[0038] Figure 12 for Figure 1 Another partial cross-sectional view of the curved glass bending apparatus shown;

[0039] Figure 13 for Figure 1 Another partial view of the curved glass bending apparatus shown;

[0040] Figure 14 for Figure 1 Another partial view of the curved glass bending apparatus shown;

[0041] Figure 15 for Figure 1 Another partial view of the curved glass bending equipment shown. DETAILED DESCRIPTION

[0042] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0043] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0045] The present application provides a hot bending device for curved glass. The hot bending device for curved glass includes a mounting platform, a hot bending furnace chamber, a turntable transmission structure, a hot bending structure and at least three molds. The hot bending furnace chamber is mounted on the mounting platform. The turntable transmission structure is arranged in the hot bending furnace chamber, and the turntable transmission structure is rotatably connected to the hot bending furnace chamber. The hot bending structure includes a preheating mechanism, a forming mechanism and a cooling mechanism, and the preheating mechanism, the forming mechanism and the cooling mechanism are sequentially arranged on the hot bending furnace chamber along the transmission direction of the turntable transmission structure. The three molds are respectively arranged in one-to-one correspondence with the preheating mechanism, the forming mechanism and the cooling mechanism, and the three molds are sequentially arranged on the turntable transmission structure along the transmission direction of the turntable transmission structure.

[0046] The above-mentioned curved glass bending equipment enables the three molds to be arranged in one-to-one correspondence with the preheating mechanism, the forming mechanism and the cooling mechanism respectively, and the three molds are arranged on the turntable transmission structure in sequence along the transmission direction of the turntable transmission structure, and the preheating mechanism, the forming mechanism and the cooling mechanism are arranged on the heat bending furnace chamber in sequence along the transmission direction of the turntable transmission structure, thereby realizing the reflow processing of the curved glass in a circular transmission manner, thereby realizing the automation of the processing of special-shaped curved glass and avoiding the addition of reflow lines. The preheating mechanism, the forming mechanism and the cooling mechanism are arranged in a circular manner in the heat bending furnace chamber, effectively realizing the miniaturization of the overall structure of the curved glass bending equipment, that is, the curved glass bending equipment occupies a smaller area, and better improving the usability of the curved glass bending equipment for different scenarios.

[0047] In order to better understand the curved glass bending device of the present application, the curved glass bending device of the present application is further explained below:

[0048] Please also refer to Figure 1 、 Figure 6 and Figure 12In one embodiment, a curved glass bending apparatus 10 includes a mounting platform 100, a bending furnace chamber 200, a turntable transmission structure 300, a bending structure 400, and at least three molds 500. The bending furnace chamber 200 is mounted on the mounting platform 100. The turntable transmission structure 300 is disposed within the bending furnace chamber 200 and is rotatably connected to the bending furnace chamber 200. The bending structure 400 includes a preheating mechanism 410, a forming mechanism 420, and a cooling mechanism 430. The preheating mechanism 410, the forming mechanism 420, and the cooling mechanism 430 are sequentially disposed on the bending furnace chamber 200 along the transmission direction of the turntable transmission structure 300. The three molds 500 are respectively disposed in a one-to-one correspondence with the preheating mechanism 410, the forming mechanism 420, and the cooling mechanism 430, and the three molds 500 are sequentially disposed on the turntable transmission structure 300 along the transmission direction of the turntable transmission structure 300.

[0049] The above-mentioned curved glass bending equipment 10 enables the three molds 500 to be respectively arranged in one-to-one correspondence with the preheating mechanism 410, the forming mechanism 420 and the cooling mechanism 430, and the three molds 500 are sequentially arranged on the turntable transmission structure 300 along the transmission direction of the turntable transmission structure 300, and the preheating mechanism 410, the forming mechanism 420 and the cooling mechanism 430 are sequentially arranged on the heat bending furnace chamber 200 along the transmission direction of the turntable transmission structure 300, so that the curved glass is reflowed in a circular transmission manner, thereby realizing the processing of special-shaped curved glass and avoiding the addition of reflow lines. The preheating mechanism 410, the forming mechanism 420 and the cooling mechanism 430 are sequentially arranged in a circular manner in the heat bending furnace chamber 200, effectively realizing the miniaturization of the overall structure of the curved glass bending equipment 10, that is, the curved glass bending equipment 10 occupies a smaller area, and better improving the usability of the curved glass bending equipment 10 in different scenarios.

[0050] Please also refer to Figures 7 to 10In some embodiments, the turntable transmission structure 300 includes a reflow plate 310 and a drive roller 320. The reflow plate 310 is sleeved on the drive roller 320. The drive roller 320 is rotatably connected to the bending furnace chamber 200. At least a portion of the drive roller 320 protrudes from the bending furnace chamber 200 and is configured to connect to the power output end of the turntable drive member 330. Furthermore, at least three molds 500 are sequentially arranged on the reflow plate 310 along the rotation direction of the reflow plate 310, with each mold 500 located on the periphery of the drive roller 320. It can be understood that the reflux disk 310 is sleeved on the transmission roller 320, and the transmission roller 320 is connected to the power output end of the turntable driving member 330, so that the turntable driving member 330 drives the transmission roller 320 to rotate to realize the circular rotation of the reflux disk 310, thereby realizing the hot bending processing of the glass blank on the mold 500 along with the reflux disk 310 passing through the preheating mechanism 410, the forming mechanism 420 and the cooling mechanism 430 in sequence, thereby better realizing the automated processing of the glass blank by the circular transmission processing method, not only has a simple structure, but also better realizes the miniaturization of the curved glass hot bending equipment 10, that is, effectively reduces the overall footprint of the curved glass hot bending equipment 10, thereby improving the universality of the curved glass hot bending equipment 10.

[0051] Please also refer to Figures 7 to 10 In some embodiments, the turntable transmission structure 300 further includes a turntable driver 330. The turntable driver 330 is connected to the mounting platform 100 or the heat bending furnace chamber 200. The power output end of the turntable driver 330 is connected to the end of the turntable driver 330 away from the reflow tray 310. Furthermore, the turntable driver 330 is connected to the outer wall of the heat bending chamber. Furthermore, the turntable driver 330 is an F series parallel shaft helical gear reduction motor.

[0052] Please also refer to Figures 7 to 10 In some embodiments, the transmission roller 320 includes a roller 321 and a transmission transition body 322. The reflow plate 310 is sleeved on the roller 321, and the roller 321 is rotatably connected to the hot bending furnace chamber 200. One end of the transmission transition body 322 is connected to the end of the roller 321 away from the reflow plate 310, and the other end of the transmission transition body 322 is connected to the power output end of the turntable drive member 330. The transmission transition body 322 is arranged to avoid the mounting platform 100. Furthermore, the transmission transition body is a gearbox. It can be understood that while ensuring the structural strength of the turntable transmission structure 300, the adjustability of the rotation speed of the turntable transmission structure 300 is well ensured.

[0053] Please also refer to Figures 7 to 10In some embodiments, the roller 321 includes a roller body 3211, a first rotation-assisting body 3212, and a second rotation-assisting body 3213. The reflow tray 310 is sleeved onto the roller body 3211. The first rotation-assisting body 3212 and the second rotation-assisting body 3213 are both connected to the two ends of the roller body 3211. The first rotation-assisting body 3212 is clamped to the bending furnace chamber 200, and the second rotation-assisting body 3213 abuts the bending furnace chamber 200. Both the first rotation-assisting body 3212 and the second rotation-assisting body 3213 are rotatably connected to the bending furnace chamber 200. The transmission transition body 322 is connected to the end of the roller body 3211 away from the reflow tray 310. Furthermore, a first seal 3214 is interposed between the first rotation-assisting body 3212 and the bending furnace chamber 200. Furthermore, a second seal 3215 is interposed between the second rotation-assisting body 3213 and the bending furnace chamber 200. Furthermore, the first sealing member and the second sealing member are both sealing rubber rings, which can improve the rotation stability of the roller 321 and better ensure the sealing of the hot bending furnace chamber 200.

[0054] Please also refer to Figures 7 to 10 In some embodiments, the reflux tray 310 includes a turntable rigid member 311 and at least three bottom supports 312. The turntable rigid member 311 is sleeved on the transmission roller 320. At least three through-areas 301 are provided on the turntable rigid member 311. The at least three through-areas 301 are arranged in sequence along the rotation direction of the turntable rigid member 311. At least three bottom supports 312 are arranged in a one-to-one correspondence at the at least three through-areas 301, and each bottom support 312 is connected to the turntable rigid member 311. Furthermore, at least three molds 500 are placed in a one-to-one correspondence on the at least three bottom supports 312. Furthermore, the turntable rigid member 311 is sleeved on the roller body 3211. It can be understood that the turntable rigid member 311 better ensures the structural strength of the reflux tray 310, and the bottom support 312 is used to place the mold 500, which better improves the placement stability of the mold 500.

[0055] In some embodiments, the mold is a graphite mold. The graphite mold (hereinafter also referenced as 500) has a porosity of 10%-20% and a pore size of 0.6 μm-0.9 μm. Furthermore, the pore size of the graphite mold is 0.8 μm. Furthermore, the resistivity of the graphite mold is 16 μm-20 μm. It should be noted that the graphite mold is formed by compacting graphite, and the compaction density determines the porosity and pore size of the graphite mold. It can be understood that if the pores in the graphite mold are created by laser etching, the pores are linear. This creates a negative pressure at the pores when the curved glass is pressed against the mold during molding, exerting a vertical attraction on the cut surface of the curved glass, which can easily lead to surface unevenness. However, if the pores are formed by compaction, the pores are more likely to be curved, i.e., nonlinear. This creates a larger component of negative pressure at the pores, exerting a multi-angle attraction on the curved glass, averaging the attraction across the curved glass and improving its surface smoothness. It can be understood that a graphite mold with a porosity of 10%-20% and a pore diameter of 0.6µm-0.9µm effectively ensures the graphite mold's strong adsorption to the glass blank.

[0056] See also Figure 12 In some embodiments, a curved groove 501 is formed on the graphite mold 500, and the graphite mold 500 is used to place a glass blank. Furthermore, when the glass blank is placed in the graphite mold 500, the glass blank is covered on the curved groove 501 to form a negative pressure cavity 502, and the periphery of the glass blank is located on the outer periphery of the curved groove 501 and abuts against the graphite mold 500. Furthermore, the bottom of the curved groove 501 includes a horizontal portion 5011, a first transition portion 5012, a second transition portion 5013, a first wedge-shaped portion 5014, and a second wedge-shaped portion 5015. The first wedge-shaped portion 5014, the first transition portion 5012, the horizontal portion 5011, the second transition portion 5013, and the second wedge-shaped portion 5015 are linearly arranged and connected in sequence. The first wedge-shaped portion 5014 and the second wedge-shaped portion 5015 are both arranged in a direction away from the horizontal portion 5011. It can be understood that the glass blank is covered on the bending groove 501 to form a negative pressure cavity 502, so that when the side of the graphite mold 500 away from the bending groove 501 is vacuumed, a negative pressure can be better formed in the negative pressure cavity 502. Since the periphery of the glass blank is located at the outer periphery of the bending groove 501 and abuts against the graphite mold 500, the entire glass blank can be better adsorbed by the graphite mold 500 when the glass blank is subjected to hot bending treatment. Therefore, under the operation of the general hot pressing process of curved glass, the glass blank can be better adsorbed and deformed to be tightly attached to the surface of the graphite mold 500, and the processing effect of the curved glass can be better ensured under the condition of relatively simple curved glass processing operations.

[0057] Please also refer to Figures 10 and 11 In some embodiments, the bottom bracket 312 is provided with a placement groove 302 , and the graphite mold 500 is placed in the placement groove 302 , further improving the placement stability of the graphite mold 500 .

[0058] Please also refer to Figures 10 to 12 In some embodiments, the base support 312 is further provided with an air inlet 303, an air outlet 304, and a communication channel 305. The air inlet 303 and the air outlet 304 are both connected to the communication channel 305. The graphite mold 500 is detachably connected to the base support 312 to form an air extraction chamber 503. The air extraction chamber 503 is connected to the air inlet 303, and the air outlet 304 is separated from the graphite mold 500. Furthermore, the graphite mold 500 is detachably connected to the placement groove 302 to form the air extraction chamber 503. It can be understood that the provision of the air inlet 303, the air outlet 304, and the communication channel 305 on the base support 312, and the connection between the air inlet 303 and the air extraction chamber 503 of the graphite mold 500, thereby effectively ensuring the smooth formation of a negative pressure state in the negative pressure chamber 502 of the graphite mold 500, and improving the ease of use of the curved glass bending apparatus 10.

[0059] In some embodiments, the placement slot is used to accommodate at least two graphite molds. Furthermore, the connecting channel includes a main channel and at least two branch channels, the main channel communicating with the air outlet, and each branch channel communicating with the main channel. There are at least two air inlets, with the at least two branch channels correspondingly communicating with the at least two air inlets. Furthermore, the at least two air inlets are correspondingly connected to the exhaust cavities of the at least two graphite molds. This improves the efficiency of the hot bending process of the glass blank.

[0060] Please also refer to Figures 1 to 3 In some embodiments, the forming mechanism 420 includes a vacuum pumping assembly 421, which is connected to the hot bending furnace chamber 200 and is disposed correspondingly to the base support 312. The vacuum pumping assembly 421 is also movably connected to the gas outlet 304, thereby evacuating the communicating channel 305 through the gas outlet 304, thereby sequentially forming negative pressure in the vacuum chamber 503 and the negative pressure chamber 502. It should be noted that the vacuum pumping assembly 421 in the forming mechanism 420 cooperates with the base support 312 and the graphite mold 500 to perform vacuum adsorption bending on the glass blank, effectively achieving the forming of the glass blank.

[0061] Please also refer to Figures 1 to 3In some embodiments, the vacuum exhaust assembly 421 includes a fixing frame 4211 and an exhaust pipe 4212. The fixing frame 4211 is installed on the hot bending furnace chamber 200, and the fixing frame 4211 is correspondingly arranged to the bottom support seat 312. The exhaust pipe 4212 is movably connected to the fixing frame 4211, and the exhaust pipe 4212 is used to communicate with the exhaust pump, and the exhaust pipe 4212 is movably connected to the outlet 304.

[0062] Please also refer to Figures 1 to 3 In some embodiments, the vacuum exhaust assembly 421 further includes an exhaust pump (not shown), which is mounted on the fixing frame 4211 or the hot bending furnace chamber 200 , and is connected to the exhaust pipe 4212 .

[0063] Please also refer to Figures 1 to 3 In some embodiments, the vacuum pumping assembly 421 further includes a lifting drive 4213 mounted on the fixed frame 4211, and a power output end of the lifting drive 4213 is connected to the exhaust pipe 4212. The lifting drive 4213 drives the exhaust pipe 4212 to move toward or away from the bottom support 312. Furthermore, when the lifting drive 4213 drives the exhaust pipe 4212 toward or abuts the bottom support 312, the other end of the exhaust pipe 4212 communicates with the air outlet 304. It can be understood that the lifting drive 4213 driving the exhaust pipe 4212 toward or away from the bottom support 312 reduces the mechanical interference of the vacuum pumping assembly 421 on the rotation of the reflow tray 310. This not only simplifies the structure but also effectively ensures the compatibility of the vacuum pumping assembly 421 with the automated processing of glass blanks using a circular conveying process.

[0064] Please also refer to Figures 1 to 3 In some embodiments, a sealing ring 4214 is provided on the peripheral wall of the exhaust pipe 4212. Furthermore, when one end of the exhaust pipe 4212 is connected to the air outlet 304, the sealing ring 4214 is sandwiched between the base 312 and the outer wall of the exhaust pipe 4212, thereby improving the speed and smoothness of forming a negative pressure state in the negative pressure chamber 502 of the graphite mold 500.

[0065] Please also refer to Figure 3 and Figure 15In some embodiments, the forming mechanism 420 includes a direct heating mechanism 422. Furthermore, the direct heating mechanism 422 includes a radiant electric heating plate 4221 and a power supply 4222. The radiant electric heating plate 4221 is connected to the heat bending furnace chamber 200 and is arranged opposite to the corresponding graphite mold 500; the power supply 4222 is connected to the heat bending furnace chamber 200 or the mounting table 100, and the power supply 4222 is at least partially located in the heat bending furnace chamber 200 and electrically connected to the radiant electric heating plate 4221; further, in the direction of gravity, the bottom support 312 and the radiant electric heating plate 4221 are linearly arranged in sequence. Furthermore, the bottom support is a high-purity graphite bottom support, that is, the bottom support 312 is made of high-purity graphite and has good thermal conductivity. Furthermore, the radiant electric heating plate 4221 is insulated and connected to the heat bending furnace chamber 200. It can be understood that in the direction of gravity, the bottom support 312 and the radiant electric heating plate 4221 are arranged linearly in sequence, and the graphite mold 500 is placed on the bottom support 312, so that when the radiant electric heating plate 4221 performs radiant heating on the bottom support 312, the bottom support 312 can effectively improve the heat conduction efficiency during preheating, and the bottom support 312 buffers the addition of the graphite mold 500, that is, only after the temperature of the bottom support 312 itself rises will it further promote the temperature rise of the graphite mold 500 through heat conduction, thereby achieving a slow heating of the glass blank in the graphite mold 500, ensuring the preparation effect of the curved glass.

[0066] It should be noted that the radiant electric heating plate is usually composed of an electric heating element, a radiant plate and a controller. The electric heating element is the main part of the entire system and can generate heat energy using electric energy; the radiant plate is usually made of metal and can radiate heat energy; the controller is used to adjust the heating power and temperature of the electric heating element so that the heating capacity of the electric heating plate can be adjusted according to demand. The radiant electric heating plate in this application is a general radiant electric heating plate commonly used for radiant heating of curved glass. Therefore, this application will not elaborate on the structure of the radiant electric heating plate. This application does not limit the protection of the structure of the radiant electric heating plate, but only protects the positional relationship and connection relationship of the radiant electric heating plate; the power supply is a general power supply structure commonly used for powering radiant electric heating plates. Therefore, this application will not elaborate on the structure of the power supply. The power supply of this application is placed on the ground and is arranged corresponding to the radiant electric heating plate when the base is radiantly heated. This application does not limit the protection of the structure of the power supply, but only protects the structural relationship and positional relationship of the power supply.

[0067] Please also refer to Figure 1 、 Figure 13 and Figure 15In one embodiment, the hot bending structure 400 further includes a feeding and discharging mechanism 440, which is disposed between the cooling mechanism 430 and the preheating mechanism 410. The feeding and discharging mechanism 440, together with the preheating mechanism 410, the forming mechanism 420, and the cooling mechanism 430, are sequentially disposed on the hot bending furnace chamber 200 along the transmission direction of the turntable transmission structure 300. Furthermore, there are four molds 500, each corresponding to the feeding and discharging mechanism 440, the preheating mechanism 410, the forming mechanism 420, and the cooling mechanism 430. Furthermore, the four molds 500 are sequentially disposed on the turntable transmission structure 300 along the transmission direction of the turntable transmission structure 300.

[0068] Please also refer to Figure 10 、 Figure 13 and Figure 15In some embodiments, the bottom bracket 312 is slidably connected to the turntable rigid member 311. Furthermore, the sliding direction of the bottom bracket 312 on the turntable rigid member 311 intersects with the horizontal direction. Furthermore, a loading and unloading port 201 is provided on the hot bending furnace chamber 200; the feeding and unloading mechanism 440 includes a hinged gate 441, a loading and unloading frame 442, a gate lifting drive 443 and a push plate 444, the hinged gate 441 is arranged between the preheating mechanism 410 and the cooling mechanism 430, the hinged gate 441 is connected to the outer wall of the hot bending furnace chamber 200, and at least part of the hinged gate 441 is covered on the loading and unloading port 201, a gas flow port 401 is provided on the hinged gate 441, and the gas flow port 401 is communicated with the loading and unloading port 201 when the hinged gate 441 is covered on the loading and unloading port 201, the loading and unloading frame 442 is arranged in the hot bending furnace chamber 200, and the inner wall of the loading and unloading frame 442 is arranged around the outer periphery of the loading and unloading port 201, and the loading and unloading frame 4 One end of 42 is connected to the inner wall of the hot bending furnace chamber 200 to form an upper and lower material trough 402, the upper and lower material trough 402 is connected to the upper and lower material port 201, and the bottom support seat 312 is located at the other end of the upper and lower material frame 442; the gate lifting drive member 443 is connected to the hot bending furnace chamber 200 or the mounting table 100, and the power output end of the gate lifting drive member 443 is at least partially located in the hot bending furnace chamber 200 and connected to the push plate 444, the gate lifting drive member 443 drives the push plate 444 to move toward or away from the bottom support seat 312; the gate lifting drive member 443 drives the push plate 444 to move to the end abutting against the bottom support seat 312, and further pushes the push plate 444 to push the bottom support seat 312 to abut against the upper and lower material frame 442, so that the bottom support seat 312 is blocked at the notch of the upper and lower material trough 402. Furthermore, a slide rail is provided on the turntable rigid member 311, and the bottom bracket 312 is slidably connected to the turntable rigid member 311 via the slide rail. Furthermore, the number of gas flow openings 401 is two or more, allowing at least simultaneous exhaust and inflation through the gas flow openings 401. Furthermore, the gate lift drive 443 drives the bottom bracket 312 to move until it closely abuts the end of the loading and unloading frame 442. The loading and unloading sealing ring is clamped at the ends of the bottom bracket 312 and the loading and unloading frame 442 to achieve close mutual abutment between the bottom bracket 312 and the loading and unloading frame 442.

[0069] It can be understood that one end of the loading and unloading frame 442 is connected to the inner wall of the hot bending furnace chamber 200 to form the loading and unloading trough 402, and the gate lifting drive member 443 drives the push plate 444 to move to abut against the end of the bottom support seat 312, and further pushes the push plate 444 to push the bottom support seat 312 to abut against the loading and unloading frame 442, so that the bottom support seat 312 is sealed at the notch of the loading and unloading trough 402, and at least part of the hinged gate 441 is covered on the loading and unloading port 201, that is, the sealing of the loading and unloading trough 402 is achieved, and the loading and unloading trough is 402 only needs to be able to accommodate the graphite mold 500, which is conducive to miniaturizing the gas environment recovery area, thereby reducing processing costs while maintaining the stability of the gas environment; further, after restoring the gas environment of the loading and unloading trough, the gate lifting drive 443 drives the push plate 444 to move away from the loading and unloading frame 442, so that the bottom support seat 312 can leave the loading and unloading frame 442 together. At this time, the graphite mold 500 can drive the glass blank to perform hot bending treatment in the hot bending furnace cavity.

[0070] Please also refer to Figure 10 、 Figure 13 and Figure 15In some embodiments, the hinged gate 441 is opened manually, or the hinged gate 441 is opened by a gate drive mechanism 445. Furthermore, the hinged gate 441 is provided with an avoidance area 403; the gate drive mechanism 445 includes a gate drive member 4451, a first transition adapter 4452 and a second transition adapter 4453. The gate drive member 4451 is provided on the outer wall of the hot bending furnace chamber 200. The power output end of the gate drive member 4451 is connected to one end of the first transition adapter 4452, and the other end of the first transition adapter 4452 is rotatably connected to one end of the second transition adapter 4453. The other end is rotatably connected to the hinged gate 441. The first transition adapter 4452 and the second transition adapter 4453 are foldable, and the second transition adapter 4453 and the hinged gate 441 are foldable. The first transition adapter 4452 and the second transition adapter 4453 are both arranged to avoid the airspace between the hinged gate 441 and the gate driver 4451. The gate driver 4451 drives the first transition adapter 4452 to move away from or toward the connection between the hinged gate 441 and the hot bending furnace chamber 200. Furthermore, one end of the first transition adapter is rotatably connected to one end of the second transition adapter via a first bearing. Furthermore, one end of the second transition adapter is rotatably connected to the hinged gate via a second bearing. It can be understood that the hinged gate 441 is a gate that opens and closes with the hinge as the rotating fulcrum, and the gate driver 4451 is installed obliquely on the hinged gate 441 as a whole. The power output end of the gate driver 4451 is set on the opening and closing track of the hinged gate 441, thereby realizing the opening and closing of the hinged gate 441, which is beneficial to improving the structural compactness of the curved glass hot bending equipment 10. Specifically, the hinged gate 441 and the gate driver 4451 are existing structures and will not be repeated in this application.

[0071] Please also refer to Figure 1 、 Figure 6 and Figure 15In one embodiment, the preheating mechanism 410 includes a first preheating assembly 411, a second preheating assembly 412, and a third preheating assembly 413. The first preheating assembly 411, the second preheating assembly 412, the third preheating assembly 413, the forming mechanism 420, and the cooling mechanism 430 are sequentially arranged on the hot bending furnace chamber 200 along the transmission direction of the turntable transmission structure 300. Furthermore, there are five molds 500, and the five molds 500 are respectively arranged in a one-to-one correspondence with the first preheating assembly 411, the second preheating assembly 412, the third preheating assembly 413, the forming mechanism 420, and the cooling mechanism 430. The five molds 500 are sequentially arranged on the turntable transmission structure 300 along the transmission direction of the turntable transmission structure 300. Furthermore, the forming mechanism 420, the first preheating assembly 411, the second preheating assembly 412 and the third preheating assembly 413 all include direct heating mechanisms 422, which achieve slow heating of the glass blanks in the corresponding graphite molds 500, thereby ensuring the preparation effect of curved glass.

[0072] Please also refer to Figure 1 、 Figure 6 and Figure 13 In one embodiment, the cooling mechanism 430 includes a first cooling assembly 431, a second cooling assembly 432, and a third cooling assembly 433. The preheating mechanism 410, the forming mechanism 420, the first cooling assembly 431, the second cooling assembly 432, and the third cooling assembly 433 are sequentially arranged on the hot bending furnace chamber 200 along the transmission direction of the turntable transmission structure 300. Furthermore, there are five molds 500, and the five molds 500 are respectively arranged in a one-to-one correspondence with the preheating mechanism 410, the forming mechanism 420, the first cooling assembly 431, the second cooling assembly 432, and the third cooling assembly 433. The five molds 500 are sequentially arranged on the turntable transmission structure 300 along the transmission direction of the turntable transmission structure 300.

[0073] Please also refer to Figure 1 、 Figure 6 and Figure 13In some embodiments, the first cooling assembly 431, the second cooling assembly 432, and the third cooling assembly 433 all include a slow cooling mechanism 410a. Furthermore, the slow cooling mechanism 410a includes a slow cooling drive 4111 and a cooling plate 4112. The cooling plate 4112 is located in the heat bending furnace chamber 200. The slow cooling drive 4111 is connected to the heat bending furnace chamber 200 or the mounting platform 100. The power output end of the slow cooling drive 4111 is at least partially located in the heat bending furnace chamber 200 and connected to the cooling plate 4112. In the direction of gravity, the bottom support 312 and the cooling plate 4112 are linearly arranged in sequence. The slow cooling drive 4111 drives the cooling plate 4112 to move toward or away from the bottom support 312. The cooling plate 4112 and the turntable rigid member 311 are arranged to avoid air space. The slow cooling drive 4111 drives the cooling plate 4112 to move toward the bottom support 312 until it abuts against the bottom support 312. It can be understood that the graphite mold 500 is placed on the bottom support 312, and in the direction of gravity, the bottom support 312 and the cooling plate 4112 are linearly arranged in sequence, and the slow cooling drive member 4111 drives the cooling plate 4112 to move toward the bottom support 312 until it abuts against the bottom support 312, thereby better ensuring the matching and applicability of the slow cooling mechanism 410a for the circular transmission processing method for the automated processing of the glass blank, and better cooperating with the bottom support 312 to slow down the rapid cooling of the graphite mold 500 The cooling effect of the curved glass is improved. In addition, the sliding direction of the bottom support seat 312 on the turntable rigid member 311 intersects with the horizontal direction, so that when the cooling plate 4112 is driven by the slow cooling driving member 4111 and abuts against the bottom support seat 312, the bottom support seat 312 is impacted by the cooling plate 4112 and can slide relative to the turntable rigid member 311, thereby effectively reducing the impact wear of the bottom support seat 312, thereby increasing the service life of the bottom support seat 312 and reducing the processing cost of the curved glass.

[0074] Please also refer to Figures 13 and 14 In some embodiments, a cooling water pipe 409 and two water flow holes 4010 are provided on the cooling plate 4112. The two water flow holes 4010 are respectively connected to the two ends of the cooling water pipe 409. The cooling water pipe 409 and the two water flow holes 4010 are both offset from the slow cooling drive member 4111. Furthermore, a cooling tower (not shown) is connected to one of the water flow holes 4010, and the cooling tower is connected to a circulating water pump (not shown), which is connected to the other water flow hole 4010. This effectively achieves cooling of the base bracket 312 by the cooling plate 4112.

[0075] Please also refer to Figures 1 to 2 ,as well as Figures 4 and 5In one embodiment, the heat bending structure 400 further includes at least three temperature monitoring mechanisms 450, which are disposed one-to-one with the three molds 500. Each temperature monitoring mechanism 450 is disposed throughout the heat bending furnace chamber 200 and faces a corresponding mold 500. Furthermore, the temperature monitoring mechanism is a photoelectric temperature sensor (hereinafter also referenced as 450), which effectively ensures real-time temperature monitoring of the graphite molds 500 within the heat bending furnace chamber 200, thereby effectively ensuring the processing effect of the curved glass.

[0076] Please also refer to Figure 1 and Figure 6 In one embodiment, the heat bending structure 400 further includes at least one inert gas concentration detector 460, which is disposed in the heat bending furnace chamber 200, and effectively monitors the inert gas concentration in the heat bending furnace chamber 200 in real time, thereby better ensuring the processing effect of the curved glass.

[0077] Please also refer to Figure 1 、 Figure 2 and Figure 6 In one embodiment, the heat bending structure 400 further includes an inert gas circulation mechanism 470. Furthermore, the inert gas circulation mechanism 470 includes an inert gas inlet pipe 471 and an inert gas outlet pipe 472. Both the inert gas inlet pipe 471 and the inert gas outlet pipe 472 are connected to the heat bending furnace chamber 200. The inert gas inlet pipe 471 is used to communicate with the air pump, and the inert gas outlet pipe 472 is used to communicate with the gas pressure relief valve, thereby effectively maintaining the inert gas concentration within the heat bending furnace chamber 200. Furthermore, the number of inert gas inlet pipes 471 is the same as the number of photoelectric temperature sensors, and at least one inert gas inlet pipe 471 is provided in a one-to-one correspondence with at least one photoelectric temperature sensor.

[0078] Please also refer to Figure 2 、 Figure 4 and Figure 5In some embodiments, the inert gas inlet pipe 471 is a straight pipe, the extension direction of the inert gas inlet pipe 471 is the same as the direction of the graphite mold 500 placed on the bottom support 312, and the inert gas inlet pipe 471 is at least partially located outside the heat bending furnace chamber 200. Any photoelectric temperature sensor 450 is arranged at the corresponding inert gas inlet pipe 471 located outside the heat bending furnace chamber 200, and the photoelectric temperature sensor 450 is arranged toward the graphite mold 500 placed on the bottom support 312 in the heat bending furnace chamber 200. The air pump (not shown) and the photoelectric temperature sensor 450 are arranged to avoid each other. It can be understood that any photoelectric temperature sensor 450 is arranged outside the heat bending furnace chamber 200 and is located at the corresponding inert gas inlet pipe 471, so that the inert gas input at the inert gas inlet pipe 471 can reduce the temperature of the photoelectric temperature sensor 450 at the inert gas inlet pipe 471, that is, the temperature at the location of the photoelectric temperature sensor 450 is lower than the temperature inside the heat bending furnace chamber 200. The photoelectric temperature sensor 450 is used to be arranged toward the graphite mold 500 in the heat bending furnace chamber 200, so that the photoelectric temperature sensor 450 can achieve effective real-time monitoring of the temperature of the graphite mold 500 at a lower temperature, thereby reducing the influence of the high temperature of the heat bending furnace chamber 200 on the monitoring accuracy of the photoelectric temperature sensor 450, that is, while ensuring the low processing cost of curved glass, the temperature detection accuracy in the heat bending furnace chamber 200 is improved.

[0079] Please also refer to Figure 2 、 Figure 4 and Figure 5 In some embodiments, the photoelectric temperature sensor 450 is connected to the inner wall of the inert gas inlet pipe 471 through a limiting seat 473. The limiting seat 473 is provided with a flow hole 405, which is connected to the inert gas inlet pipe 471. The flow hole 405 is arranged to avoid the photoelectric temperature sensor 450, thereby improving the installation stability of the photoelectric temperature sensor 450 and further reducing the temperature at the photoelectric temperature sensor 450, thereby further improving the detection accuracy of the temperature in the hot bending furnace chamber 200.

[0080] Please also refer to Figure 2 、 Figure 4 and Figure 5In some embodiments, the limit seat 473 includes a first seat body 4731 and a second seat body 4732 connected in a stacked manner, part of the flow hole 405 is opened on the first seat body 4731, and another part of the flow hole 405 is opened on the second seat body 4732, the first seat body 4731 is sleeved on the photoelectric temperature sensor 450, and the outer periphery of the first seat body 4731 is connected to the inner wall of the inert gas input pipe 471; the first seat body 4731 is also provided with a first inner flow hole 404; the second seat body 4732 is also provided with an air avoidance groove 406 and a second inner flow hole 407, the first seat body 4731 is covered on the air avoidance groove 406 to form an inner flow cavity 408, the first inner flow hole 404 is connected to the inner flow cavity 408, and the second inner flow hole 407 is connected to the inner flow cavity 408, and the lens of the photoelectric temperature sensor 450 is located at the inner flow cavity 408 or the second inner flow hole 407. Furthermore, the first base body is tightly laminated and connected to the second base body via a sealing rubber ring or adhesive layer. It can be understood that the provision of the first inner flow hole 404 and the second inner flow hole 407 further ensures sufficient contact between the input inert gas and the surface of the photoelectric temperature sensor 450, thereby effectively reducing the temperature at the photoelectric temperature sensor 450.

[0081] Please also refer to Figure 2 、 Figure 4 and Figure 5 In some embodiments, the lens of the photoelectric temperature sensor 450 is located at the second inner flow hole 407, and the aperture of the second inner flow hole 407 gradually decreases in the direction from the end to the position adjacent to the lens, which is conducive to the cleaning of the lens of the photoelectric temperature sensor 450 by the input inert gas, thereby better improving the accuracy of the photoelectric temperature sensor 450 in real-time monitoring of the surface temperature of the mold 500.

[0082] See also Figure 13 In one embodiment, the heat bending furnace chamber 200 is provided with a thermal insulation layer 210, and the thermal insulation layer 210 is connected to the inner wall of the heat bending furnace chamber 200 to form a heat preservation zone 202, and the thermal insulation layer 210 is respectively arranged corresponding to the preheating mechanism 410 and the forming mechanism 420, and the mold 500 arranged corresponding to the preheating mechanism 410 and the forming mechanism 420 is located in the heat preservation zone 202, which improves the heat preservation effect of the preheating mechanism 410 and the forming mechanism 420, and reduces the heat transfer of the temperature of the preheating mechanism 410 and the forming mechanism 420 to the overall temperature of the curved glass bending device 10, thereby better improving the operation stability of the curved glass bending device 10.

[0083] Please also refer to Figure 7 、 Figure 10 and Figure 15In one embodiment, the heat bending furnace chamber 200 is provided with at least one window 203, and a sealing body 220 is provided on the window 203. The sealing body 220 is detachably and tightly connected to the heat bending furnace chamber 200. It should be noted that the detachable and tight connection between the sealing body 220 and the heat bending furnace chamber 200 can be understood as: the sealing body 220 is detachably connected to the heat bending furnace chamber 200, and when the sealing body 220 is connected to the heat bending furnace chamber 200, the sealing member is tightly connected to the heat bending furnace chamber 200 so that the sealing member blocks the window 203 of the furnace chamber body, thereby forming the heat bending furnace chamber 200 into a relatively sealed chamber, which is conducive to convenient maintenance of various components in the heat bending furnace chamber 200.

[0084] Compared with the prior art, the present invention has at least the following advantages:

[0085] The curved glass bending device 10 of the present invention enables the three molds 500 to be arranged in one-to-one correspondence with the preheating mechanism 410, the forming mechanism 420 and the cooling mechanism 430 respectively, and the three molds 500 are arranged on the turntable transmission structure 300 in sequence along the transmission direction of the turntable transmission structure 300, and the preheating mechanism 410, the forming mechanism 420 and the cooling mechanism 430 are arranged on the heat bending furnace chamber 200 in sequence along the transmission direction of the turntable transmission structure 300, so that the curved glass is reflowed in a circular transmission manner, thereby realizing the processing of special-shaped curved glass and avoiding the addition of reflow lines. The preheating mechanism 410, the forming mechanism 420 and the cooling mechanism 430 are arranged in a circular manner in the heat bending furnace chamber 200, effectively realizing the miniaturization of the overall structure of the curved glass bending device 10, that is, the curved glass bending device 10 occupies a smaller area, and better improving the usability of the curved glass bending device 10 in different scenarios.

[0086] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A curved glass bending device, characterized in that: include: Mounting table; A heat bending furnace chamber, wherein the heat bending furnace chamber is mounted on the mounting platform; A turntable transmission structure, the turntable transmission structure is arranged in the heat bending furnace chamber, and the turntable transmission structure is rotatably connected to the heat bending furnace chamber; A hot bending structure, comprising a preheating mechanism, a forming mechanism, and a cooling mechanism, wherein the preheating mechanism, the forming mechanism, and the cooling mechanism are sequentially arranged on the hot bending furnace chamber along the transmission direction of the turntable transmission structure; at least three molds, the three molds being respectively arranged in one-to-one correspondence with the preheating mechanism, the molding mechanism, and the cooling mechanism, and the three molds being sequentially arranged on the turntable transmission structure along the transmission direction of the turntable transmission structure; The hot bending structure further includes a feeding and discharging mechanism. When the hot bending structure further includes a feeding mechanism, the number of the molds is four, and the four molds are respectively arranged in a one-to-one correspondence with the feeding and discharging mechanism, the preheating mechanism, the forming mechanism, and the cooling mechanism, and the four molds are sequentially arranged on the turntable transmission structure along the transmission direction of the turntable transmission structure; The turntable transmission structure includes a reflux disk and a transmission roller. The reflux disk is sleeved on the transmission roller. The transmission roller is rotatably connected to the heat bending furnace chamber, and at least a portion of the transmission roller protrudes from the heat bending furnace chamber and is used to connect to the power output end of the turntable drive member. At least three molds are sequentially arranged on the reflux disk along the rotation direction of the reflux disk, and any mold is located on the periphery of the transmission roller. The reflow plate includes a turntable rigid member and at least three bottom supports. The turntable rigid member is sleeved on the transmission roller. The turntable rigid member is provided with at least three through-areas. The at least three through-areas are sequentially spaced along the rotation direction of the turntable rigid member. The at least three bottom supports are arranged in a one-to-one correspondence at the at least three through-areas, and each bottom support is connected to the turntable rigid member. At least three molds are placed in a one-to-one correspondence on the at least three bottom supports. The bottom bracket is slidably connected to the turntable rigid member, and further, the sliding direction of the bottom bracket on the turntable rigid member intersects with the horizontal direction; The hot bending furnace chamber is provided with loading and unloading ports; The feeding and discharging mechanism includes a hinged gate, a loading and unloading frame, a gate lifting drive and a push plate. The hinged gate is arranged between the preheating mechanism and the cooling mechanism. The hinged gate is connected to the outer wall of the hot bending furnace chamber, and at least part of the hinged gate is covered on the loading and unloading port. A gas flow port is opened on the hinged gate, and the gas flow port is connected with the loading and unloading port when the hinged gate cover is arranged on the loading and unloading port. The loading and unloading frame is arranged in the hot bending furnace chamber, and the inner wall of the loading and unloading frame is arranged around the outer periphery of the loading and unloading port, and one end of the loading and unloading frame is connected to the hot bending furnace chamber. The inner walls are connected to form upper and lower material troughs, which are connected to the upper and lower material ports, and the bottom support seat is located at the other end of the upper and lower material frame; the gate lifting drive is connected to the hot bending furnace chamber or the mounting table, and the power output end of the gate lifting drive is at least partially located in the hot bending furnace chamber and connected to the push plate, and the gate lifting drive drives the push plate to move toward or away from the bottom support seat; the gate lifting drive drives the push plate to move to the end abutting against the bottom support seat, and further pushes the push plate to push the bottom support seat to abut against the upper and lower material frame, so that the bottom support seat is blocked at the notch of the upper and lower material trough.

2. The curved glass bending device according to claim 1, characterized in that: The preheating mechanism includes a first preheating component, a second preheating component and a third preheating component, and the first preheating component, the second preheating component, the third preheating component, the forming mechanism and the cooling mechanism are sequentially arranged on the hot bending furnace chamber along the transmission direction of the turntable transmission structure; There are five molds, and the five molds are respectively arranged in one-to-one correspondence with the first preheating component, the second preheating component, the third preheating component, the molding mechanism and the cooling mechanism, and the five molds are arranged on the turntable transmission structure in sequence along the transmission direction of the turntable transmission structure.

3. The curved glass bending device according to claim 1, characterized in that: The cooling mechanism includes a first cooling assembly, a second cooling assembly and a third cooling assembly, and the preheating mechanism, the forming mechanism, the first cooling assembly, the second cooling assembly and the third cooling assembly are sequentially arranged on the hot bending furnace chamber along the transmission direction of the turntable transmission structure; There are five molds, and the five molds are respectively arranged in one-to-one correspondence with the preheating mechanism, the molding mechanism, the first cooling assembly, the second cooling assembly and the third cooling assembly, and the five molds are arranged on the turntable transmission structure in sequence along the transmission direction of the turntable transmission structure.

4. The curved glass bending device according to claim 1, characterized in that: The hot bending structure also includes at least three temperature monitoring mechanisms, which are arranged in a one-to-one correspondence with the three molds. Each temperature monitoring mechanism is arranged throughout the hot bending furnace chamber, and each temperature monitoring mechanism is arranged toward the corresponding mold.

5. The curved glass bending device according to claim 1, characterized in that: The hot bending structure further includes at least one inert gas concentration detector, which is disposed in the hot bending furnace chamber.

6. The curved glass bending device according to claim 1, characterized in that: The thermal bending structure further includes an inert gas circulation mechanism; The inert gas circulation mechanism includes an inert gas input pipe and an inert gas output pipe, both of which are connected to the hot bending furnace chamber. The inert gas input pipe is used to connect to the air pump, and the inert gas output pipe is used to connect to the gas pressure relief valve.

7. The curved glass bending device according to claim 1, characterized in that: The mold is a graphite mold.

8. The curved glass bending device according to claim 1, characterized in that: The hot bending furnace chamber is provided with a thermal insulation layer, which is connected to the inner wall of the hot bending furnace chamber to form a thermal insulation zone, and the thermal insulation layer is respectively arranged corresponding to the preheating mechanism and the forming mechanism, and the molds arranged corresponding to the preheating mechanism and the forming mechanism are located in the thermal insulation zone.

9. The curved glass bending device according to claim 1, characterized in that: The heat bending furnace chamber is provided with at least one window, and a sealing body is provided on the window, and the sealing body is detachably and tightly connected to the heat bending furnace chamber.

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