CN206607160U - Cooling device used in 3D curved glass hot pressing equipment - Google Patents

Abstract

The utility model discloses a be applied to cooling device among 3D curved surface glass hot pressing equipment, wherein, the device includes: a forming chamber; the first cooling module is connected with the forming chamber; and the second cooling module is connected with the forming chamber and is arranged in a production line manner with the first cooling module. The device provided by the utility model adopts the first cooling module and the second cooling module which are distributed in a production line manner and connected with the forming chamber, so that the formed product is cooled by the first cooling module and is stabilized and pressurized at the same time, and then is cooled by the second cooling module to accelerate the cooling speed of the die and the formed product placed in the die, thereby improving the production efficiency and effectively preventing the product from being cracked; the problem of after hot pressing equipment shaping smart mobile phone 3D curved surface glass, adopt natural cooling mode, production efficiency to it is low, and adopt liquid cooling board rapid cooling mode to cause the product cracked easily is solved to effectual having solved.

Description

Cooling device used in 3D curved glass hot pressing equipment

technical field

The utility model relates to the technical field of hot pressing equipment, in particular to a cooling device used in hot pressing equipment for 3D curved glass.

Background technique

With the development of smartphones, in addition to Samsung and LG launching smartphones with curved screens, smartphones like Apple’s use more non-planar glass with rounded edges, that is, the middle area of the glass is flat and the edges are flat. A curved surface is used for the transition, and the above-mentioned non-planar glasses all belong to the related and used category of the smart phone 3D curved surface glass of the present invention.

Because the processing of 3D curved glass is difficult and the process route is relatively complicated, the existing non-flat glass generally adopts cold processing, that is, the edge of flat glass is ground and polished to obtain the required curved edge; however, This cold processing method is easy to leave small cracks on the non-planar glass, which greatly reduces the yield of non-planar glass; moreover, the size of the arc fillets that can be processed by the cold processing method is also limited.

The use of hot pressing equipment and staged hot pressing can greatly reduce the internal stress of the material during the forming process of 3D curved glass, thereby reducing the generation of small cracks and improving the yield of non-flat glass; but in the product stage After hot pressing, the use of natural cooling will greatly reduce the production efficiency of 3D curved glass for smartphones, while the use of liquid cooling plates to cool it will cause rapid cooling of products at high temperatures and easily break.

Therefore, the prior art still needs to be improved and developed.

Utility model content

In view of the above-mentioned deficiencies in the prior art, the purpose of this utility model is to provide a cooling device used in hot-pressing equipment for 3D curved glass, aiming at solving the problem of natural cooling after the hot-pressing equipment is used to form the 3D curved glass of smart phones. The method and production efficiency are low, and the rapid cooling method of liquid cooling plate is easy to cause the problem of product fragmentation.

The technical scheme of the utility model is as follows:

A cooling device applied to 3D curved glass hot pressing equipment, wherein the cooling device used in 3D curved glass hot pressing equipment includes:

A molding room for accommodating the mold and the single piece of flat glass blank placed in the mold, and internally completing the staged hot pressing of the single piece of flat glass blank into 3D curved glass products for smartphones;

Connected with the molding chamber, the first cooling module is used to initially cool the molded product through heat conduction and at the same time maintain the pressure stably;

The second cooling module connected to the molding chamber and arranged in an assembly line with the first cooling module is used for secondary cooling of the molded product through heat conduction and to speed up the cooling speed of the mold .

In a preferred solution, the cooling device used in the hot-pressing equipment for 3D curved glass, wherein the cooling device used in the hot-pressing equipment for 3D curved glass further includes:

A third cooling module connected to the molding chamber and arranged in an assembly line with the first cooling module and the second cooling module for cooling the molded product three times through heat conduction;

It is connected to the molding chamber and arranged in a pipeline with the first cooling module, the second cooling module and the third cooling module, and is used for cooling the formed product four times through heat conduction. Four cooling modules.

In a preferred solution, the cooling device used in the hot-pressing equipment for 3D curved glass, wherein the cooling device used in the hot-pressing equipment for 3D curved glass further includes:

A liquid cooling channel that communicates with the molding chamber and is used for auxiliary cooling of the molded product that has completed four cooling cycles;

And a fifth cooling module connected to the liquid cooling channel for cooling the molded product five times while the liquid cooling channel is assisting in cooling the formed product.

In a preferred solution, the cooling device applied to 3D curved glass hot pressing equipment, wherein the first cooling module includes:

The main cylinder, the main upper cooling plate, the main upper heating plate, the main lower heating plate and the main lower cooling plate are arranged in sequence from top to bottom. Both the plate and the main lower cooling plate are placed in the molding cavity, the main upper cooling plate is connected to the lower end of the main cylinder, the main upper heating plate is connected under the main upper cooling plate, and the bottom surface of the main upper heating plate is used to contact the top surface of the mold. Contact, the top surface of the main lower heating plate is used to contact the bottom surface of the mould, and the main lower heating plate is connected on the main lower cooling plate.

In a preferred solution, the cooling device used in 3D curved glass hot-pressing equipment, wherein, between the main upper heating plate and the main upper cooling plate, and between the main lower heating plate and the main lower cooling plate are arranged There is a double-sided grille.

In a preferred solution, the cooling device applied to 3D curved glass hot pressing equipment, wherein the second cooling module includes:

The auxiliary cylinder, the main upper cooling plate, the main upper heating plate, the main lower heating plate and the main lower cooling plate are arranged in sequence from top to bottom. The plate and the main lower cooling plate are placed in the molding cavity, the main upper cooling plate is connected to the lower end of the auxiliary cylinder, the main upper heating plate is connected under the main upper cooling plate, and the bottom surface of the main upper heating plate is used to contact the top surface of the mold. Contact, the top surface of the main lower heating plate is used to contact the bottom surface of the mould, and the main lower heating plate is connected on the main lower cooling plate.

In a preferred solution, the cooling device used in 3D curved glass hot-pressing equipment, wherein, between the main upper heating plate and the main upper cooling plate, and between the main lower heating plate and the main lower cooling plate are arranged There is a double-sided grille.

In a preferred solution, the cooling device used in 3D curved glass hot pressing equipment, wherein, both the third cooling device and the fourth cooling device include:

The auxiliary cylinder, the upper liquid cold plate and the lower liquid cold plate are arranged in sequence from top to bottom. The auxiliary cylinder is arranged vertically. The lower end and the lower end surface of the auxiliary cylinder are used to contact the upper surface of the mold, and the upper surface of the lower liquid cooling plate is used to contact the bottom surface of the mold.

In a preferred solution, the cooling device applied to 3D curved glass hot pressing equipment, wherein the liquid cooling channel includes: a channel body communicating with the molding chamber, and a liquid cooling channel body arranged on the channel body pipeline.

As described in any one of the above, the working principle of the cooling device applied to the 3D curved glass hot pressing equipment includes the following steps:

The first cooling module cools the formed product for the first time through heat conduction, and at the same time maintains the pressure stably;

The second cooling module performs secondary cooling on the molded product through heat conduction to speed up the cooling speed of the mold.

The cooling device provided by the utility model used in 3D curved glass hot-pressing equipment adopts the first cooling module and the second cooling module which are distributed in an assembly line and connected to the forming chamber, so that after forming, it is in the Products under high temperature are firstly cooled by the first cooling module while stabilizing the pressure, and then cooled by the second cooling module to accelerate the cooling speed of the mold and the molded products placed in it, which not only improves Production efficiency, and effectively prevent product fragmentation; effectively solve the problem of natural cooling after the hot pressing equipment forms the smart phone 3D curved glass, which has low production efficiency, and the rapid cooling method of the liquid cooling plate is easy to cause product fragmentation The problem.

Description of drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of the 3D curved glass hot pressing equipment including the cooling device used in the 3D curved glass hot pressing equipment of the present invention.

Fig. 2 is a structural schematic diagram of another preferred embodiment of the 3D curved glass hot pressing equipment including the cooling device used in the 3D curved glass hot pressing equipment of the present invention.

detailed description

The utility model provides a cooling device used in 3D curved glass hot-pressing equipment. In order to make the purpose, technical solution and effect of the utility model clearer and clearer, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figure 1, the utility model provides a cooling device used in 3D curved glass hot-pressing equipment, which first stabilizes the pressure and lowers the temperature, and then secondarily cools to speed up the cooling speed of the mold. Handle products that are in a high temperature state after molding. Both are slow cooling, first of all to ensure the quality of the product, on this basis to improve the production efficiency of the product. In order to achieve the above purpose, the cooling device used in the 3D curved glass hot pressing equipment includes: a forming chamber 400, a first cooling module 310 connected to the forming chamber 400, specifically vertical and penetrating the forming chamber 400 , and the second cooling module 320 connected to the molding chamber 400 , specifically vertically and penetrating the molding chamber 400 , and arranged in a pipeline with the first cooling module 310 .

Wherein, the forming chamber 400 is used to accommodate the mold and the single piece of flat glass blank placed in the mold, and internally complete the staged, hot-press molding of the single piece of flat glass blank into a smart phone 3D curved glass product. The molding chamber 400 itself is used as a cavity and a channel for the mold to move between the various modules. A single piece of flat glass blank is hot-pressed into curved glass in stages. Various preheating modules and pressing modules are realized.

The first cooling module 310 preferably includes: a main cylinder 111, a main upper cooling plate 112, a main upper heating plate 113, a main lower heating plate 114, and a main lower cooling plate 115 arranged sequentially from top to bottom. Cylinder 111 is vertically arranged, and main upper cooling plate 112, main upper heating plate 113, main lower heating plate 114 and main lower cooling plate 115 are all placed in molding cavity 400, and main upper cooling plate 112 is connected to the lower end of main cylinder 111, and main The upper heating plate 113 is connected under the main upper cooling plate 112, the bottom surface of the main upper heating plate 113 is used to contact the top surface of the mould, the top surface of the main lower heating plate 114 is used to contact the bottom surface of the mould, and the main lower heating plate 113 is used to contact the top surface of the mold. Plate 114 is attached above main lower cooling plate 115 .

In a further preferred embodiment of the present utility model, a double-sided grid plate is arranged between the main upper heating plate 113 and the main upper cooling plate 112, and between the main lower heating plate 114 and the main lower cooling plate 115. 116 and 117; both sides of the double-sided grid plates 116 and 117 are processed with grid grooves, which can slow down the temperature change rate of the mold and the blank or product in it after assembly, including the temperature rise rate or temperature drop rate.

The second cooling module 320 preferably includes: an auxiliary cylinder 211, a main upper cooling plate 112, a main upper heating plate 113, a main lower heating plate 114, and a main lower cooling plate 115 arranged sequentially from top to bottom. The cylinder 211 is vertically arranged, and the main upper cooling plate 112, the main upper heating plate 113, the main lower heating plate 114 and the main lower cooling plate 115 are all placed in the molding cavity 400, and the main upper cooling plate 112 is connected to the lower end of the auxiliary cylinder 211. The upper heating plate 113 is connected under the main upper cooling plate 112, the bottom surface of the main upper heating plate 113 is used to contact the top surface of the mould, the top surface of the main lower heating plate 114 is used to contact the bottom surface of the mould, and the main lower heating plate 113 is used to contact the top surface of the mold. Plate 114 is attached above main lower cooling plate 115 .

Similar to the first cooling module 310, between the main upper heating plate 113 and the main upper cooling plate 112 and between the main lower heating plate 114 and the main lower cooling plate 115 in the second cooling module 320 are also Both are provided with a double-sided grid plate 116 and 117 , where the location and function of the double-sided grid plate 116 and 117 are the same as those in the first cooling module 310 .

Therefore, the cooling device used in the 3D curved glass hot-pressing equipment provided by the utility model adopts the first cooling module 310 and the second cooling module 320 distributed in an assembly line and connected to the molding chamber 400 , so that the product that is in a high temperature state after molding is first cooled by the first cooling module 310 while maintaining a stable pressure, and then cooled by the second cooling module 320 to accelerate the mold and the molded product placed in it The cooling speed not only improves the production efficiency, but also effectively prevents the product from breaking; it effectively solves the problem of natural cooling after the hot pressing equipment forms the 3D curved glass of the smart phone, and the production efficiency is low, while the liquid cold plate is used. The rapid cooling method is easy to cause the problem of product fragmentation.

In a further preferred embodiment of the present utility model, the cooling device used in the 3D curved glass hot pressing equipment further includes: connected to the molding chamber 400, and connected to the first cooling module 310 and the second The second cooling module 320 is arranged in an assembly line, and is used for the third cooling module 330 to cool the molded product three times through heat conduction; it is connected to the molding chamber 400 and connected to the first cooling module 310 . The second cooling module 320 and the third cooling module 330 are arranged in an assembly line, and are used for the fourth cooling module 340 for cooling the formed product four times through heat conduction.

Both the third cooling device and the fourth cooling device include: an auxiliary cylinder 211, an upper liquid cold plate and a lower liquid cold plate arranged in sequence from top to bottom, the auxiliary cylinder 211 is vertically arranged, and the upper liquid cold plate and the lower liquid cold plate are arranged vertically. The cold plates are all placed in the molding cavity 400, the upper surface of the upper liquid cold plate is used to connect the lower end of the auxiliary cylinder 211, the lower end surface is used to contact the upper end surface of the mold, and the upper surface of the lower liquid cold plate is used to contact the bottom surface of the mold.

It can be seen that the third cooling module 330 and the fourth cooling module 340 are in a rapid cooling mode, and the two liquid cooling plates are respectively attached to the upper and lower end surfaces of the mold, and then cooled by continuous circulation in the liquid cooling plates. The fluid is used for heat exchange with the mold to rapidly cool down the mold and the molded products in it. This cooling is carried out after the mold and product have passed through the first cooling module 310 to stabilize the pressure and cool down, and then pass through the second cooling module 320 to cool down to a certain temperature. At this time, rapid cooling will only further reduce the temperature. Accelerate the production efficiency of the product without causing the product to drop from high temperature to low temperature in a very short time, causing the product to break. High temperature and low temperature are relatively speaking, and they have different requirements according to different blanks or different curved surfaces of molded products, which are common knowledge in the field, and will not be described here one by one.

As shown in Figure 2, in a further preferred embodiment of the present utility model, the cooling device used in the 3D curved glass hot pressing equipment also includes: communicating with the molding chamber 400, for completing four cooling A liquid cooling channel 360 for auxiliary cooling of the formed product; and a fifth cooling channel connected to the liquid cooling channel 360 for cooling the formed product five times while the liquid cooling channel 360 is performing auxiliary cooling on the formed product Cooling module 350 .

Preferably, the liquid cooling channel 360 is perpendicular to the forming chamber 400, and the 3D curved glass hot pressing equipment further includes a feeding device, the feeding device is perpendicular to the forming chamber 400, and is connected to the liquid cooling channel 360 points are set at both ends of the molding chamber 400, and the space between them is the operating space for operators. The operation sequence of the entire 3D curved glass hot-pressing equipment is: the operator places a single piece of flat glass blank in the mold, and then places the mold on the feeding device, and the feeding device senses the mold (the molds described hereafter in this paragraph are all Built-in mold with a single piece of flat glass blank), the mold is automatically transported to the molding chamber 400, so that it passes through the preheating device in sequence in the molding chamber 400 (including multiple preheating modules that gradually heat up and preheat the mold in sequence) , molding device (at least one molding module with the same structure as the preheating module, and its function is molding), output after the cooling device, and the final output of the mold is the liquid cooling channel 360 (or it can be extended for a section without liquid cooling functional channel, the extending direction may be parallel to the molding chamber 400). The operation of the entire hot pressing equipment is very convenient, it can be put in from one end of the molding chamber 400 and taken out from the other end.

In a specific implementation, the liquid cooling channel 360 includes: a channel body communicating with the molding chamber 400 , and a liquid cooling pipeline disposed on the channel body. The fifth cooling module 350 can adopt the same component configuration as the third cooling module 330 .

In order to more comprehensively introduce the cooling device described in the utility model, the 3D curved glass hot-pressing equipment is introduced as follows: Please refer to Figure 1 again, the hot-pressing equipment mainly includes the first hot-pressing mold arranged in the form of an assembly line Group 110, the second hot-pressing module 120 and the third hot-pressing module 130, the 3D curved surface forming mold equipped with a single flat glass blank passes through the first hot-pressing module 110, the second hot-pressing module 110, the second hot-pressing The pressing die set 120 and the third hot pressing die set 130 are used to heat press and form a single piece of flat glass blank in stages into 3D curved glass products for smartphones.

Specifically, the first hot-pressing module 110 includes a main cylinder 111, a main upper cooling plate 112, a main upper heating plate 113, a main lower heating plate 114, and a main lower cooling plate 115. The main cylinder 111 is vertically arranged, and the main The upper cooling plate 112, the main upper heating plate 113, the main lower heating plate 114 and the main lower cooling plate 115 are all placed in a closed and breathable box, that is, the molding chamber 400, and the main upper cooling plate 112 is connected to the main cylinder 111 The lower end of the main upper heating plate 113 is connected under the main upper cooling plate 112, the bottom surface of the main upper heating plate 113 is used to contact the top surface of the 3D curved surface forming mold, and the top surface of the main lower heating plate 114 is used to contact with the top surface of the 3D curved surface forming mold. The bottom surface of the 3D curved surface forming mold is in contact with each other, and the main lower heating plate 114 is connected to the main lower cooling plate 115; Module 110 has the same component configuration.

Preferably, a double-sided grid plate 116 is arranged between the main upper heating plate 113 and the main upper cooling plate 112, and a double-sided grid plate is arranged between the main lower heating plate 114 and the main lower cooling plate 115. 117, the two sides of the double-sided grid plates 116 and 117 are respectively processed with grid grooves, which can slow down the temperature rise rate of the 3D curved surface forming mold after assembly.

In a preferred embodiment of the utility model smart phone 3D curved glass hot-pressing equipment, the hot-pressing equipment also includes: a first preheating module 210, a second preheating module 220, a third preheating module 220 and a third preheating module arranged in an assembly line. The thermal module 230 and the fourth preheating module 240, the first hot pressing module 110 is located after the fourth preheating module 240, and the 3D curved surface forming mold is successively Through the first preheating module 210 , the second preheating module 220 , the third preheating module 230 and the fourth preheating module 240 , the 3D curved surface molding mold is heated in stages by heat conduction.

Specifically, the first preheating module 210 includes an auxiliary cylinder 211, an auxiliary upper cooling plate 212, an auxiliary upper heating plate 213, an auxiliary lower heating plate 214, and an auxiliary lower cooling plate 215. The auxiliary cylinder 211 is vertically arranged, and the auxiliary The upper cooling plate 212, the auxiliary upper heating plate 213, the auxiliary lower heating plate 214 and the auxiliary lower cooling plate 215 are also placed in the molding chamber 400, the auxiliary upper cooling plate 212 is connected to the lower end of the auxiliary cylinder 211, and the auxiliary upper heating plate 213 is connected under the auxiliary upper cooling plate 212, the bottom surface of the auxiliary upper heating plate 213 is used to contact the top surface of the 3D curved surface forming mold, and the top surface of the auxiliary lower heating plate 214 is used for contacting the top surface of the 3D curved surface forming mold. The bottom surfaces are in contact, and the sub-lower heating plate 214 is connected to the sub-lower cooling plate 215; the second preheating module 220 and the third preheating module 230 adopt the same parts configuration as the first preheating module 210 , the fourth preheating module 240 adopts the same parts configuration as the first hot pressing module 110 to slow down the temperature rise rate of the 3D curved surface forming mold, and the fourth preheating module 240 is replaced by the auxiliary cylinder 211 The main cylinder 111 avoids applying excessive pressure to the 3D curved surface forming mold before the formal hot pressing.

Preferably, the auxiliary upper heating plate 213 and the auxiliary upper cooling plate 212 are connected through a plurality of spacers 216, and the auxiliary lower heating plate 214 and the auxiliary lower cooling plate 215 are connected through a plurality of spacers 217. connection, the contact area of the spacers 216 and 217 is not as good as that of the double-sided grid plates 116 and 117. Compared with the double-sided grid plates 116 and 117 in the preheating stage, the spacers 216 and 217 can speed up the 3D curved surface forming mold temperature rise rate.

In a preferred embodiment of the utility model smart phone 3D curved glass hot-pressing equipment, the hot-pressing equipment also includes: a first cooling module 310, a second cooling module 320, a third cooling module arranged in an assembly line 330 and the fourth cooling module 340, the first cooling module 310 is located after the third hot-pressing module 130, and the 3D curved surface forming mold passes through the first The cooling module 310 , the second cooling module 320 , the third cooling module 330 and the fourth cooling module 340 are used to cool the 3D curved surface forming mold in stages by means of heat conduction.

Preferably, the first cooling module 310 adopts the same part configuration as the first hot-pressing module 130, so as to ensure a stable pressure-holding effect on the 3D curved surface forming mold at the initial stage of cooling, while the second cooling The module 320 adopts the same component configuration as the fourth preheating module 240 to speed up the cooling speed of the 3D curved surface forming mold.

Specifically, a double-sided grid plate 116 is arranged between the main upper heating plate 113 and the main upper cooling plate 112 of the first cooling module 310, and a double-sided grid plate 116 is arranged between the main lower heating plate 114 and the main lower cooling plate 115. A double-sided grid plate 216 is arranged between the side grid plate 117 and the auxiliary upper heating plate 213 and the auxiliary upper cooling plate 212 of the second cooling module 320, and a double-sided grid plate 216 is arranged between the auxiliary lower heating plate 214 and the auxiliary lower cooling plate 215. A double-sided grid plate 217 is arranged between them.

Based on the above hot pressing equipment, the utility model also proposes a smart phone 3D curved glass, or its two sides are curved, or its four edges are curved, or its middle large surface is horizontally curved, which can be used as a screen, a back cover or One of the products in the protective screen can also be a combination of any two or three of these three types of 3D curved glass. What is important is that the 3D curved glass can The hot pressing equipment for 3D curved glass is hot pressed to reduce the internal stress of the material during the molding process of 3D curved glass, reduce the generation of small cracks, and then improve the yield of non-planar glass.

It should be understood that the application of the present utility model is not limited to the above-mentioned examples, and those skilled in the art can make improvements or changes according to the above description, such as the rotation speed setting method of the rotation speed setting module, etc., all of which Both improvement and transformation should belong to the protection scope of the appended claims of the utility model.

Claims (9)

1. A cooling device applied in 3D curved glass hot pressing equipment, characterized in that, the cooling device applied in 3D curved glass hot pressing equipment comprises: A molding room for accommodating the mold and the single piece of flat glass blank placed in the mold, and internally completing the staged hot pressing of the single piece of flat glass blank into 3D curved glass products for smartphones; Connected with the molding chamber, the first cooling module is used to initially cool the molded product through heat conduction and at the same time maintain the pressure stably; The second cooling module connected to the molding chamber and arranged in an assembly line with the first cooling module is used for secondary cooling of the molded product through heat conduction and to speed up the cooling speed of the mold . 2. The cooling device used in 3D curved glass hot-pressing equipment according to claim 1, wherein the cooling device used in 3D curved glass hot-pressing equipment further comprises: A third cooling module connected to the molding chamber and arranged in an assembly line with the first cooling module and the second cooling module for cooling the molded product three times through heat conduction; It is connected to the molding chamber and arranged in a pipeline with the first cooling module, the second cooling module and the third cooling module, and is used for cooling the formed product four times through heat conduction. Four cooling modules. 3. The cooling device applied in 3D curved glass hot pressing equipment according to claim 2, characterized in that, the cooling device applied in 3D curved glass hot pressing equipment further comprises: A liquid cooling channel that communicates with the molding chamber and is used for auxiliary cooling of the molded product that has completed four cooling cycles; And a fifth cooling module connected to the liquid cooling channel for cooling the molded product five times while the liquid cooling channel is assisting in cooling the formed product. 4. The cooling device used in 3D curved glass hot pressing equipment according to any one of claims 1 to 3, wherein the first cooling module includes: The main cylinder, the main upper cooling plate, the main upper heating plate, the main lower heating plate and the main lower cooling plate are arranged in sequence from top to bottom. Both the plate and the main lower cooling plate are placed in the molding cavity, the main upper cooling plate is connected to the lower end of the main cylinder, the main upper heating plate is connected under the main upper cooling plate, and the bottom surface of the main upper heating plate is used to contact the top surface of the mold. Contact, the top surface of the main lower heating plate is used to contact the bottom surface of the mould, and the main lower heating plate is connected on the main lower cooling plate. 5. The cooling device used in 3D curved glass hot pressing equipment according to claim 4, characterized in that, between the main upper heating plate and the main upper cooling plate, and between the main lower heating plate and the main lower cooling plate A double-sided grid plate is arranged between them. 6. The cooling device used in 3D curved glass hot pressing equipment according to any one of claims 1 to 3, wherein the second cooling module includes: The auxiliary cylinder, the main upper cooling plate, the main upper heating plate, the main lower heating plate and the main lower cooling plate are arranged in sequence from top to bottom. The plate and the main lower cooling plate are placed in the molding cavity, the main upper cooling plate is connected to the lower end of the auxiliary cylinder, the main upper heating plate is connected under the main upper cooling plate, and the bottom surface of the main upper heating plate is used to contact the top surface of the mold. Contact, the top surface of the main lower heating plate is used to contact the bottom surface of the mould, and the main lower heating plate is connected on the main lower cooling plate. 7. The cooling device used in 3D curved glass hot pressing equipment according to claim 6, characterized in that, between the main upper heating plate and the main upper cooling plate, and between the main lower heating plate and the main lower cooling plate A double-sided grid plate is arranged between them. 8. The cooling device used in 3D curved glass hot pressing equipment according to claim 2, characterized in that, both the third cooling device and the fourth cooling device include: The auxiliary cylinder, the upper liquid cold plate and the lower liquid cold plate are arranged in sequence from top to bottom. The auxiliary cylinder is arranged vertically. The lower end and the lower end surface of the auxiliary cylinder are used to contact the upper surface of the mold, and the upper surface of the lower liquid cooling plate is used to contact the bottom surface of the mold. 9. The cooling device used in 3D curved glass hot pressing equipment according to claim 3, wherein the liquid cooling channel comprises: a channel body communicating with the molding chamber, and a channel body arranged on the channel body liquid-cooled pipes.