Cooling apparatus and method for glass substrate forming

Abstract

The present application relates to glass substrate cooling device, disclose a kind of for glass substrate forming cooling device and equipment and method, the cooling device for glass substrate forming includes: cooling pipe, cooling pipe includes tube body, the inner diameter of middle part of tube body is greater than the inner diameter of both ends of tube body;And shunt mechanism, shunt mechanism is arranged in tube body, shunt mechanism includes the shunt core being arranged along the length direction of tube body and multiple shunt sheets on the outer wall of shunt core, multiple shunt sheets are arranged along the length direction of shunt core;Multiple shunt sheets are unevenly distributed along the periphery of shunt core, and / or, the thickness of multiple shunt sheets is at least partially different, to form multiple shunt passages between the outer wall of shunt core and the inner wall of tube body, and the curvature of multiple shunt passages is at least partially different in size.The cooling device for glass substrate forming can realize accurate targeted cooling in each direction of glass ribbon and can adapt to the cooling needs of making glass substrate of different thickness.

Description

Technical Field

[0001] This disclosure relates to a cooling device for glass substrates, specifically, to a cooling device, equipment, and method for glass substrate molding. Background Technology

[0002] In optoelectronic display glass substrate production lines, such as those producing OLED (organic light-emitting diode) carrier glass and LTPS (low-temperature polycrystalline silicon) glass substrates with a thickness of 0.3-0.7mm, as well as ultra-thin flexible glass substrates with a thickness of less than 0.1mm, the overflow-pull method is used. First, the glass mixture is fed into a furnace for high-temperature melting. After stirring and clarifying through a platinum channel, it flows into the forming furnace and overflows to form a glass ribbon. The setting furnace is the core equipment for glass substrate forming. After the raw materials are heated, liquefied, filtered, and clarified in the furnace, they flow sequentially into the muffle furnace, setting furnace, and annealing furnace. Cooling water pipes with a rapid cooling and setting effect are installed on both sides of the setting furnace. In existing technology, the cooling water pipes are located on both sides of the glass plate surface inside the setting furnace, close to the glass substrate. This rapid cooling of the high-temperature glass ribbon flowing from the muffle furnace allows the glass paste to harden quickly, facilitating the stretching and forming by the traction rollers below. The cooling water pipes also create a substrate setting temperature gradient, achieving the goal of controlling glass plate width and substrate warpage to meet quality control specifications.

[0003] In existing technologies, to find the temperature corresponding to the hardening point of glass grease, it is necessary to constantly change water pipes of different diameters, and it is not possible to cool down the area in a targeted manner.

[0004] In view of this, there is a need to design a cooling device for glass substrate molding that can effectively solve or alleviate the above-mentioned technical problems. Summary of the Invention

[0005] The fundamental technical problem to be solved by the present invention is to provide a cooling device for glass substrate forming, which can precisely cool different positions on the glass strip and can also adapt to the cooling requirements of manufacturing glass substrates of different thicknesses.

[0006] Furthermore, the technical problem to be solved by the present invention is to provide a glass substrate forming device that can precisely cool different positions on the glass strip, and can also adapt to the cooling requirements of manufacturing glass substrates of different thicknesses.

[0007] Furthermore, the technical problem to be solved by the present invention is to provide a glass substrate forming method, which can precisely cool different positions on the glass strip, and can also adapt to the cooling requirements of manufacturing glass substrates of different thicknesses.

[0008] To address the aforementioned technical problems, this disclosure provides a cooling device for glass substrate molding, comprising a cooling tube, the cooling tube including a tube body, wherein the inner diameter of the middle portion of the tube body is larger than the inner diameters of both ends of the tube body; and a flow-dividing mechanism disposed within the tube body, the flow-dividing mechanism including a flow-dividing core disposed along the length direction of the tube body and a plurality of flow-dividing plates located on the outer wall of the flow-dividing core, the plurality of flow-dividing plates being disposed along the length direction of the flow-dividing core;

[0009] The plurality of flow dividers are unevenly distributed along the outer periphery of the flow divider core, and / or the thickness of the plurality of flow dividers is at least partially different, such that a plurality of flow dividers are formed between the outer wall of the flow divider core and the inner wall of the tube body, and the curvature of the plurality of flow dividers is at least partially different.

[0010] In some embodiments, the cooling pipe is composed of multiple independent pipe segments with gradually decreasing diameters from its middle section to both ends, and the inner wall of each pipe segment has an arc-shaped structure along its length.

[0011] In some embodiments, the flow divider core is hollow, and a liquid collection chamber is provided at one end of the cooling tube. The liquid collection chamber is connected to the flow divider channel, and the flow divider core is connected to the liquid collection chamber for inputting the cooling medium into the flow divider channel.

[0012] In some embodiments, a liquid outlet chamber is provided at one end of the cooling pipe away from the water collection chamber, the liquid outlet chamber is connected to the diversion channel, and a drain pipe is provided on the liquid outlet chamber.

[0013] Based on the above-mentioned cooling device technical solution for glass substrate forming, the present invention also provides a glass substrate forming equipment, including the cooling device for glass substrate forming as described above and a shaping furnace, wherein the cooling tube is rotatably disposed on one or both sides of the glass strip formed by the shaping furnace.

[0014] In some embodiments, the shaping furnace includes an overflow mechanism and a traction mechanism. The overflow mechanism is capable of overflowing its internal molten glass to form the glass ribbon, and the cooling tubes are rotatably arranged on both sides of the glass ribbon. The traction mechanism is located at one end of the glass ribbon away from the overflow mechanism.

[0015] In some embodiments, the overflow mechanism includes an overflow trough and a diversion mechanism disposed below the overflow trough, the diversion mechanism being used to divert the molten glass in the overflow trough into the glass ribbon.

[0016] In some embodiments, the shaping furnace further includes a furnace shell and a positioning mechanism disposed on the furnace shell, wherein the cooling tube is rotatably disposed on the positioning mechanism.

[0017] In some embodiments, the positioning mechanism includes a plurality of positioning channels that pass through the furnace shell, the plurality of positioning channels being distributed on both sides of the glass strip, and the cooling tube being rotatably inserted into the positioning channels.

[0018] Based on the technical solution of the above-mentioned glass substrate forming equipment, the present invention also provides a glass substrate forming method, comprising the following steps:

[0019] Step 1: The operator selects cooling tubes of different diameters according to the type of glass substrate being produced, and rotatably installs the selected cooling tubes on one or both sides of the glass belt formed in the shaping furnace.

[0020] Step 2: The cooling medium is loaded into each of the distribution channels in the cooling tube through the distribution core;

[0021] Step 3: Depending on the type of glass substrate being manufactured, rotate the cooling tube to select a suitable flow channel on the cooling tube to face the glass strip, and cool the glass strip.

[0022] Through the above technical solution, the present invention provides a cooling device for glass substrate forming. By making the inner diameter of the middle part of the tube larger than the inner diameter of both ends of the tube, it is convenient to accurately cool different areas in different directions of the glass strip. A flow distribution mechanism is set in the tube to divide the tube into flow channels of different sizes. The different cooling amounts provided by the different flow channels are convenient to adapt to the cooling requirements of glass substrates of different thicknesses. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the cooling tube structure disclosed in this embodiment;

[0025] Figure 2 yes Figure 1 Cross-sectional view;

[0026] Figure 3 This is a schematic diagram of the diversion mechanism disclosed in this embodiment;

[0027] Figure 4 This is a three-dimensional structural schematic diagram of the diversion mechanism disclosed in the embodiments of this disclosure;

[0028] Figure 5This is a cross-sectional view of the cooling tube disclosed in this embodiment;

[0029] Figure 6 This is a schematic diagram of the structure of the shaping furnace disclosed in this embodiment;

[0030] Figure 7 This is a front structural diagram of the shaping furnace disclosed in this embodiment;

[0031] Figure 8 This is a schematic diagram of the overflow brick structure disclosed in this embodiment.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Cooling tube; 11. Tube body; 12. Liquid outlet chamber; 13. Liquid collection chamber; 14. Drain pipe; 2. Diverting mechanism; 21. Diverting core; 22. Diverting plate; 23. Diverting channel; 3. Shaping furnace; 31. Positioning mechanism; 32. Overflow mechanism; 321. Overflow trough; 322. Draining mechanism; 33. Glass ribbon. Detailed Implementation

[0034] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0035] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0036] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "inner," "outer," etc., indicating orientation or positional relationship are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0037] Furthermore, the use of words such as "including" or "contains" in this disclosure means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that it may also cover other elements.

[0038] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.

[0039] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0040] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0041] like Figures 1 to 5As shown, the cooling device for glass substrate forming of the present invention includes a cooling tube 1, which includes a tube body 11. The tube body 11 can be disposed on both sides of the glass strip 33 to cool the glass strip 33. The inner diameter of the middle part of the tube body 11 is larger than the inner diameter of the two ends of the tube body 11. Due to the stable characteristics of the glass strip 33, after the molten glass overflows into a glass strip, the glass strip 33 exhibits a high temperature in the middle and a low temperature at both ends. Therefore, the inner diameter of the middle part of the tube body 11 is larger than the inner diameter of the two ends of the tube body 11, which can cool the glass strip 33. Precise cooling is achieved laterally; a flow-dividing mechanism 2 is disposed within the tube body 11, comprising a flow-dividing core 21 arranged along the length of the tube body 11 and multiple flow-dividing plates 22 located on the outer wall of the flow-dividing core 21, the multiple flow-dividing plates 22 being arranged along the length of the flow-dividing core 21; the multiple flow-dividing plates 22 being unevenly distributed along the outer periphery of the flow-dividing core 21, and / or, the thickness of the multiple flow-dividing plates 22 being at least partially different, so as to form multiple flow-dividing channels 23 between the outer wall of the flow-dividing core 21 and the inner wall of the tube body 11, and multiple The curvature of the distribution channels 23 is at least partially different in size. For example, six unevenly distributed distribution plates 22 can be arranged on the distribution core 21 along the length of the tube body 11, dividing the tube body 11 into one distribution channel 23 occupying half of the interior of the tube body 11, two distribution channels 23 occupying one-eighth of the interior of the tube body 11, and three distribution channels 23 occupying one-twelfth of the interior of the tube body 11. Cooling medium, such as cooling water, is loaded into the distribution channels 23. The distribution channel 23 occupying half of the interior of the tube body 11 carries the most cooling medium. By directing the flow channel 23, which occupies half of the interior of the tube 11, towards the glass strip 33, the cooling effect can be maximized. When a thinner glass substrate is required, the traction mechanism 34 will increase its rotation speed, and the glass strip 33 will become thinner, reducing the amount of cooling required. By placing the flow channel 23, which occupies one-twelfth of the interior of the tube 11, or the flow channel 23, which occupies one-eighth of the interior of the tube, on the side of the glass strip 33, the glass strip 33 can be cooled, which can meet the cooling requirements of making glass substrates of different thicknesses.

[0042] In some embodiments, such as Figure 1 and Figure 2 As shown, the cooling pipe 1 is composed of multiple independent pipe segments with gradually decreasing diameters from its middle section to both ends. The inner wall of each pipe segment has an arc-shaped structure along its length. For example, the cooling pipe 1 can be composed of three to five pipe segments from its middle section to both ends. The diameter variation of adjacent pipe segments can be 3 to 10 mm. For example, the pipe segments of the cooling pipe 1 can be arranged as shown in Table 1. The diameter of the pipe segment in the middle section of the cooling pipe 1 is 40 mm, and the diameters of the pipe segments from the middle to both ends of the cooling pipe 1 are 37 mm, 30 mm, and 25 mm, respectively. Due to the characteristic that the temperature of the glass strip 33 is high in the middle and low at both ends, the cooling pipe 1, composed of multiple independent pipe segments with gradually decreasing diameters, can accurately cool the glass strip 33 at various transverse positions.

[0043] Table 1:

[0044]

[0045]

[0046] In some embodiments, such as Figures 2 to 4 As shown, the flow divider core 21 is hollow, and a liquid collection chamber 13 is set inside one end of the cooling tube 1. The liquid collection chamber 13 is connected to the flow divider channel 23, and the flow divider core 21 is connected to the liquid collection chamber 13. The cooling medium, such as water, can be loaded into the liquid collection chamber 13 through the hollow flow divider core 21. The cooling medium then enters the flow divider channel 23 through the liquid collection chamber 13, which makes it convenient for the operator to replenish the cooling medium in the cooling tube 1.

[0047] In some embodiments, such as Figures 2 to 4 As shown, a liquid outlet chamber 12 is provided at the end of the cooling tube 1 away from the liquid collection chamber 13. The liquid outlet chamber 12 is connected to the distribution channel 23, allowing the cooling medium in the distribution channel 23 to enter the liquid outlet chamber 12. A drain pipe 14 is provided on the liquid outlet chamber 12, which can discharge the cooling medium in the distribution channel 23. The cooling medium enters the liquid collection chamber 13 through the hollow distribution core 21, and then enters the distribution channel 23 through the liquid collection chamber 13 to cool the glass ribbon 33. The cooling medium enters the liquid outlet chamber 12 due to water pressure. When the distribution core 21 cools the glass ribbon 33, the cooling medium in the distribution channel 23 absorbs heat. After absorbing heat, the cooling medium is discharged through the drain pipe 14. After cooling the discharged cooling medium, it re-enters the distribution channel 23 through the distribution core 21 to cool the glass ribbon 33, so that the cooling tube 1 can be reused.

[0048] Based on the cooling device for glass substrate forming mentioned in the above technical solution of the present invention, the present invention further provides a glass substrate forming equipment, which includes the cooling device for glass substrate forming as described in any one of claims 1-5 and a shaping furnace 3. The cooling pipe 1 is rotatably disposed on one or both sides of the glass strip 33 formed by the shaping furnace 3. The operator rotates the position of the cooling pipe 1 in the shaping furnace 3 according to the type of glass substrate to be formed, so that the corresponding flow channel 23 in the cooling pipe 1 is opposite to the glass strip 33, and the glass strip 33 is precisely cooled. For example, when a thinner glass substrate needs to be made, the amount of cooling required for the glass strip 33 is reduced. The operator rotates the cooling tube 1 so that the flow channel 23, which occupies less space inside the cooling tube 1, is opposite to the glass strip 33, thereby cooling the glass strip 33. When a thicker glass substrate needs to be made, the amount of cooling required for the glass strip 33 is increased. The operator rotates the cooling tube 1 so that the flow channel 23, which occupies more space inside the cooling tube 1, is opposite to the glass strip 33, thereby cooling the glass strip 33. This method is suitable for cooling requirements when making glass substrates of various thicknesses.

[0049] In some embodiments, such as Figure 6 As shown, the shaping furnace 3 includes an overflow mechanism 32, which overflows molten glass to form a glass ribbon 33. Cooling pipes 1 are arranged on both sides of the glass ribbon 33 to cool it. For example, multiple cooling pipes 1 can be symmetrically arranged on both sides of the glass ribbon 33 along the overflow direction to cool it vertically. The inner diameter of the cooling pipe 1 is larger in the middle than at both ends. Since the temperature characteristic of the glass ribbon 33 is that the temperature is higher in the middle and lower at both ends, the cooling pipes 1 can cool the glass ribbon 33 laterally. For precise cooling, the shaping furnace 3 also includes a traction mechanism 34. The traction mechanism 34 is located at the end of the glass belt 33 away from the overflow mechanism 32. The traction mechanism 34 can be a traction roller used to pull the glass belt 33. When a thinner glass substrate is required, the traction roller speeds up to pull the glass belt 33 thinner. The cooling pipes 1 located on both sides of the glass belt 33 are rotated so that the flow channel occupying a small part of the cooling pipe 1 is opposite to the glass belt 33. It can also be set at the end of the pipe body 11 to adapt to the cooling requirements of glass substrates of different thicknesses.

[0050] In some embodiments, such as Figure 8As shown, the overflow mechanism 32 includes an overflow trough 321 and a diversion mechanism 322 disposed below the overflow trough 321. The overflow trough 321 contains molten glass, which overflows from the overflow trough 321 and forms a glass strip 33 after passing through the diversion mechanism 322. Cooling pipes 1 are disposed on both sides of the glass strip 33. The inner diameter of the cooling pipe 1 is larger in the middle than at both ends. Since the temperature characteristics of the glass strip 33 are that the temperature is higher in the middle and lower at both ends, the cooling pipes 1 can precisely cool the glass strip 33 laterally.

[0051] In some embodiments, such as Figure 7 As shown, the shaping furnace 3 also includes a furnace shell 35 and a positioning mechanism 31 disposed on the furnace shell 35. An overflow mechanism 32 and a traction mechanism 34 are disposed inside the furnace shell 35. The furnace shell 35 is used to isolate the overflow mechanism 32 and the traction mechanism 34 from the outside of the furnace shell 35 to prevent operators from being injured by high temperature, and at the same time to protect the purity of the glass melt inside the shaping furnace 3. The cooling tube 1 is installed on the positioning mechanism 31 and can rotate on the positioning mechanism 31. Depending on the different glass substrates to be made, the corresponding flow channel 23 on the cooling tube 1 can be selected. When a thinner glass substrate needs to be made, the required cooling amount is reduced. By rotating the cooling tube 1 in the positioning mechanism 31, the flow channel 23 in the cooling tube 1, which occupies less space in the cooling tube 1, cools the glass strip 33, which can adapt to the cooling requirements of glass substrates of different thicknesses.

[0052] In some embodiments, the positioning mechanism 31 includes a plurality of positioning channels 311 that penetrate the furnace shell 35. The plurality of positioning channels 311 are located on both sides of the glass strip 33. For example, the plurality of positioning channels 311 can be symmetrically arranged on both sides of the glass strip 33 and arranged along the overflow direction of the glass strip 33. A plurality of cooling tubes 1 are rotatably installed in each positioning channel 311, so that the cooling tubes 1 are symmetrically arranged on both sides of the glass strip 33 to cool the glass strip 33. One end of the cooling tube 1 can also be equipped with an inlet head, which can be a pointed tip. The round-headed inlet head facilitates insertion into the positioning channel 311. When a thicker glass substrate needs to be manufactured, the required cooling capacity increases. Rotating the cooling tube 1 in the positioning channel 311 allows the flow channel 23, which occupies more space in the cooling tube 1, to cool the glass strip 33. This can meet the cooling requirements for manufacturing glass substrates of different thicknesses. At the same time, the cooling tube 1 is a cylindrical cooling tube that is narrow at both ends and wide in the middle. Due to the temperature characteristics of the glass strip 33, which is high in the middle and low at both ends in the transverse direction, the transverse cooling of the glass strip 33 can be accurately achieved.

[0053] Based on the glass substrate forming equipment mentioned in the above technical solution of the present invention, the present invention further provides a glass substrate forming method, comprising the following steps:

[0054] Step 1: The operator selects cooling tubes 1 of different diameters according to the type of glass substrate being produced. For example, the production temperature of OLED carrier glass is relatively high, so a cooling device with a diameter of 50mm can be selected. The production temperature of LTPS glass substrate is relatively low, so a cooling device with a diameter of 40mm can be selected. The selected cooling tube 1 is rotated and installed on the shaping furnace 3 through the positioning channel 311 on the shaping furnace 3. At the same time, the cooling tube 1 is located on one or both sides of the glass strip 33 to cool the glass strip 33 overflowing from the overflow mechanism 32.

[0055] Step 2: The cooling medium is loaded into the various channels 23 of the cooling tube 1 through the distribution core 21. When the distribution core 21 cools the glass strip 33, the cooling medium in the distribution channel 23 absorbs heat. After absorbing heat, the cooling medium is discharged through the drain pipe 14. After the discharged cooling medium is cooled, it re-enters the distribution channel 23 through the distribution core 21 to cool the glass strip 33, so that the cooling tube 1 can be reused.

[0056] Step 3: Depending on the type of glass substrate being manufactured, the operator rotates the cooling tube 1 to select a suitable flow channel on the cooling tube 1 facing the glass strip 33 to cool the glass strip 33. For example, when cooling a thinner glass strip 33, the operator rotates the cooling tube 1 so that the smaller flow channel 23 inside the cooling tube 1 faces the glass strip 33 to cool the glass strip 33. When cooling a thicker glass strip 33, the operator rotates the cooling tube 1 so that the larger flow channel 23 inside the cooling tube 1 faces the glass strip 33 to cool the glass strip 33. This can adapt to the cooling requirements of manufacturing glass substrates of different thicknesses.

[0057] To facilitate a deeper understanding of the technical concept and advantages of the cooling device and equipment for glass substrate molding of the present invention, the following is combined with... Figures 1 to 8 The invention describes the structural form of a cooling device and equipment for glass substrate molding, which has relatively preferred features and is relatively comprehensive.

[0058] The cooling tube 1 includes a tube body 11. The inner diameter of the middle part of the tube body 11 is larger than the inner diameter of both ends of the tube body 11. The middle part to both ends of the cooling tube 1 are each composed of multiple independent tube segments with gradually decreasing diameters. The inner wall of each tube segment has an arc-shaped structure along its length. For example, the middle part to both ends of the cooling tube 1 can each be composed of three to five tube segments, with the diameter variation between adjacent tubes being 3 to 10 mm. This ensures that the cooling capacity provided by the middle part of the cooling tube 1 is greater than that at both ends, matching the temperature characteristics of the glass strip 33 in the horizontal direction. This allows the cooling tube 1 to precisely cool the glass strip in the horizontal direction. Furthermore, to facilitate the manufacturing of the cooling tube 1, the multiple tube segments constituting the cooling tube 1 can be fixed together by welding. For example, the cooling tube 1... The heating pipe 1 can be composed of two pipe sections. After the flow divider core 21 is placed into one pipe body, the other pipe body is attached and welded. A flow divider mechanism 2 is set in the pipe body 11. The flow divider mechanism 2 includes a flow divider core 21 arranged along the length direction of the pipe body 11 and multiple flow divider plates 22 located on the outer wall of the flow divider core 21. The multiple flow divider plates 22 are arranged along the length direction of the flow divider core 21. The multiple flow divider plates 22 are unevenly distributed along the outer periphery of the flow divider core 21, and / or the thickness of the multiple flow divider plates 22 is at least partially different, so that multiple flow divider channels 23 are formed between the outer wall of the flow divider core 21 and the inner wall of the pipe body 11, and the curvature of the multiple flow divider channels 23 is at least partially different. The flow divider plates 22 can be manufactured according to the required size using technologies such as laser cutting. The pipe body 11 can be Manufactured using hot stamping technology, the flow divider core 21 has multiple flow dividers arranged along the length of the tube body 11, such as six unevenly distributed flow dividers 22, dividing the tube body 11 into one flow channel 23 occupying half of the tube body 11, two flow channels 23 occupying one-eighth of the tube body 11, three flow channels 23 occupying one-twelfth of the tube body 11, or three flow channels 23 occupying one-third of the tube body 11 respectively. The flow divider core 21 is hollow, and a liquid collecting chamber 13 is set in one end of the cooling tube 1. The liquid collecting chamber 13 is connected to the flow channels 23, and the flow divider core 21 is connected to the liquid collecting chamber 13. The cooling medium, such as water, can be loaded into the liquid collecting chamber 13 through the hollow flow divider core 21, and the cooling medium then flows through the liquid collecting chamber 13. The cooling medium enters the distribution channel 23 from the cooling tube 1. An outlet chamber 12 is located at the end of the cooling tube 1 furthest from the collection chamber 13. The outlet chamber 12 communicates with the distribution channel 23, allowing the cooling medium in the distribution channel 23 to enter the outlet chamber 12. A drain pipe 14 is installed on the outlet chamber 12 to discharge the cooling medium from the distribution channel 23. The cooling medium enters the collection chamber 13 through the hollow distribution core 21, and then enters the distribution channel 23 through the collection chamber 13 to cool the glass strip 33. Due to water pressure, the cooling medium enters the outlet chamber 12. When the cooling medium needs to be replaced or the used coolant needs to be discharged, the liquid is discharged through the drain pipe 14. The cooling tube 1 is installed in the setting furnace 3. The diameter of the cooling tube 1 is selected according to the different glass substrates being manufactured. For example…OLED substrate glass production temperatures are relatively high, so a 50mm diameter cooling device can be used. LTPS glass substrate production temperatures are relatively low, so a 40mm diameter cooling device can be used. The setting furnace 3 includes an overflow mechanism 32 and a traction mechanism 34. The overflow mechanism 32 includes an overflow trough 321 and a guide mechanism 322 located below the overflow trough 321. The overflow trough 321 contains molten glass, which overflows from the overflow trough 321 and forms a glass ribbon 33 after passing through the guide mechanism 322. The traction mechanism 34 is located at the end of the glass ribbon 33 away from the overflow mechanism 32. The traction mechanism 34 can be a traction roller used to pull the glass ribbon 33. When a thinner glass substrate is required, the traction roller increases its speed to thin the glass ribbon 33. The setting furnace 3 also includes a furnace shell 35 and a positioning mechanism 31 located on the furnace shell 35. The overflow mechanism 32 and the traction mechanism 34 are located inside the furnace shell 35. The positioning mechanism 31 includes multiple positioning channels 311 that penetrate the furnace shell 35. Positioning channels 311 are located on both sides of the glass strip 33, and multiple positioning channels 311 are arranged along the overflow direction of the glass strip 33. For example, 2 to 4 cooling tubes 1 can be arranged on both sides of the glass strip 33. Multiple cooling tubes 1 are rotatably installed in each positioning channel 311, so that the cooling tubes 1 are symmetrically arranged on both sides of the glass strip 33 to cool the glass strip 33. One end of the cooling tube 1 can also be equipped with an inlet head, which can be a pointed round inlet head, to facilitate the introduction into the positioning channel 311. When it is necessary to make a thicker glass substrate, the required cooling amount increases. Rotating the cooling tube 1 in the positioning channel 311 allows the branch channel 23 in the cooling tube 1, which occupies more space in the cooling tube 1, to cool the glass strip 33. When it is necessary to make a thinner glass substrate, the required cooling amount decreases. Rotating the cooling tube 1 in the positioning mechanism 31 allows the branch channel 23 in the cooling tube 1, which occupies less space in the cooling tube 1, to cool the glass strip 33, so as to meet the cooling needs of glass substrates of different thicknesses. ,

[0059] As can be seen from the above description of the present invention, by making the inner diameter of the middle part of the tube 11 larger than the inner diameter of both ends of the tube 11, the present invention facilitates precise cooling of different areas in various directions of the glass strip 33. The flow distribution mechanism 2 is set in the tube 11, so that the tube 11 is divided into flow channels 23 of different sizes. When making different glass substrates, the corresponding flow channels 23 are selected to meet the cooling requirements of making glass substrates of different thicknesses.

[0060] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0061] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner.

Claims

1. A cooling device for glass substrate molding, characterized in that, include: Cooling pipe (1), the cooling pipe (1) includes a pipe body (11), the inner diameter of the middle part of the pipe body (11) is larger than the inner diameter of both ends of the pipe body (11); and The diversion mechanism (2) is disposed inside the pipe body (11). The diversion mechanism (2) includes a diversion core (21) disposed along the length direction of the pipe body (11) and a plurality of diversion plates (22) located on the outer wall of the diversion core (21). The plurality of diversion plates (22) are disposed along the length direction of the diversion core (21). The plurality of flow dividers (22) are unevenly distributed along the outer periphery of the flow divider core (21), and / or the thickness of the plurality of flow dividers (22) is at least partially different, such that a plurality of flow dividers (23) are formed between the outer wall of the flow divider core (21) and the inner wall of the tube body (11), and the curvature of the plurality of flow dividers (23) is at least partially different.

2. The cooling device for glass substrate molding according to claim 1, characterized in that, The cooling pipe (1) is composed of multiple independent pipe segments with gradually decreasing diameters from the middle to both ends. The inner wall of each pipe segment has an arc-shaped structure along its length.

3. The cooling device for glass substrate molding according to claim 1 or 2, characterized in that, The flow divider core (21) is hollow, and a liquid collection chamber (13) is provided in one end of the cooling tube (1). The liquid collection chamber (13) is connected to the flow divider channel (23), and the inner cavity of the flow divider core (21) is connected to the liquid collection chamber (13).

4. The cooling device for glass substrate molding according to claim 3, characterized in that, A liquid outlet chamber (12) is provided at one end of the cooling tube (1) away from the liquid collection chamber (13). The liquid outlet chamber (12) is connected to the diversion channel (23). A drain pipe (14) is provided on the liquid outlet chamber (12).

5. A glass substrate forming device, characterized in that, The device includes a cooling apparatus for glass substrate forming according to any one of claims 1-4 and a shaping furnace (3), wherein the cooling tube (1) is rotatably disposed on one or both sides of the glass strip (33) formed by the shaping furnace (3).

6. The glass substrate forming equipment according to claim 5, characterized in that, The shaping furnace (3) includes an overflow mechanism (32) and a traction mechanism (34). The overflow mechanism (32) can overflow the glass liquid inside to form the glass strip (33). The cooling pipes (1) are rotatably arranged on both sides of the glass strip (33). The traction mechanism (34) is located at one end of the glass strip (33) away from the overflow mechanism (32).

7. The glass substrate forming equipment according to claim 6, characterized in that, The overflow mechanism (32) includes an overflow trough (321) and a diversion mechanism (322) disposed below the overflow trough (321). The diversion mechanism (322) is used to divert the molten glass in the overflow trough (321) into the glass ribbon (33).

8. The glass substrate forming equipment according to claim 6, characterized in that, The shaping furnace (3) also includes a furnace shell (35) and a positioning mechanism (31) disposed on the furnace shell (35), and the cooling pipe (1) is rotatably disposed on the positioning mechanism (31).

9. The glass substrate forming equipment according to claim 8, characterized in that, The positioning mechanism (31) includes multiple positioning channels (311) that pass through the furnace shell (35). The multiple positioning channels (311) are distributed on both sides of the glass strip (33), and the cooling tube (1) is rotatably inserted into the positioning channel (311).

10. A method for forming a glass substrate, characterized in that, The glass substrate forming equipment according to any one of claims 5-9 includes the following steps: Step 1: Select cooling tubes (1) of different diameters according to the type of glass substrate being produced, and rotatably install the selected cooling tubes (1) on one or both sides of the glass strip (33) formed by the shaping furnace (3). Step 2: The cooling medium is loaded into each of the branch channels (23) in the cooling pipe (1) through the branch core (21); Step 3: Depending on the type of glass substrate being manufactured, rotate the cooling tube (1) to select a suitable flow channel (23) on the cooling tube (1) to face the glass strip (33) and cool the glass strip (33).

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