A process for producing an ultra-thin high-strength float glass

Abstract

The application discloses a kind of ultra-thin high-strength float glass preparation process, it is related to the preparation technical field of float glass.The application discloses a kind of ultra-thin high-strength float glass preparation process, it is related to the preparation technical field of float glass.The application discloses a kind of ultra-thin high-strength float glass preparation process, it is related to the preparation technical field of float glass.The application discloses a kind of ultra-thin high-strength float glass preparation process, it is related to the preparation technical field of float glass.The application discloses a kind of ultra-thin high-strength float glass preparation process, it is related to the preparation technical field of float glass.The application discloses a kind of ultra-thin high-strength float glass preparation process, it is related to the preparation technical field of float glass.The application discloses a kind of ultra-thin high-strength float glass preparation process, it is related to the preparation technical field of float glass.The application discloses a kind of ultra-thin high-strength float glass preparation process, it is related to the preparation technical field of float glass.The application discloses a kind of ultra-thin high-strength float glass preparation process, it is related to the preparation technical field of float glass.The application discloses a kind of ultra-thin high-strength float glass preparation process, it is related to the preparation technical field of float glass.The application discloses a kind of ultra-thin high-strength float glass preparation process, it is related to the preparation technical field of float glass.The application discloses a kind of ultra-thin high-strength float glass preparation process, it is related to the preparation technical field of float glass.The application discloses a kind of ultra-thin high-strength float glass preparation process, it is related to the preparation technical field of float glass.The application discloses a kind of ultra-thin high-strength float glass preparation process, it is related to the preparation technical field of float glass.The application discloses a kind of ultra-thin high-strength float glass preparation process, it is related to the preparation technical field of float glass.The application discloses a kind of ultra-thin high-strength float glass preparation process, it is related to the preparation technical field of float glass.The application discloses a kind of ultra-thin high-strength float glass preparation process, it is related to the preparation technical field of float glass.The application discloses a kind of ultra-thin high-strength float glass preparation process, it is related to the preparation technical field of float glass.The application discloses a kind of ultra-thin high-strength float glass preparation process, it is related to the preparation technical field

Description

Technical Field

[0001] This invention relates to the field of float glass manufacturing technology, specifically to a process for manufacturing ultra-thin, high-strength float glass. Background Technology

[0002] Ultra-thin high-strength float glass is a high-performance flat glass manufactured using the float process. It boasts advantages such as thinness, high light transmittance, good surface flatness, and high mechanical strength, and is widely used in precision optoelectronic fields such as flexible electronic devices and high-end touch panels. The manufacturing process involves injecting high-temperature molten glass into a tin bath, utilizing the buoyancy and tension of the molten tin surface to flatten and shape it into a uniform and continuous glass strip. The thinning and widening are precisely controlled by an edge-drawing machine to obtain ultra-thin glass. Subsequently, through online coating, stress-relief annealing, cutting, and edge grinding, ultra-thin high-strength float glass with a smooth surface and high strength is produced.

[0003] However, the online coating process for ultra-thin glass still has the following problems:

[0004] 1. Since the glass ribbon only floats on the surface of the molten tin and lacks effective fixation, it is very easy to cause slight fluctuations, shaking or even vibrations during high-speed transmission due to airflow disturbances, temperature gradients or uneven mechanical traction. Traditional static spraying methods are difficult to adapt to this dynamic working condition. The fixed nozzle position and single airflow pattern lead to uneven coverage of the reaction gas, resulting in film thickness deviations or coverage blind spots in local areas, which seriously affects the uniformity of the coating and the consistency of the product.

[0005] 2. In addition, if the impact force of the jet airflow is too large, the high-speed airflow will directly act on the surface of the thin and soft glass ribbon, which will aggravate its vibration amplitude and cause film disturbance or even micro-deformation; if the airflow is too weak, it will be difficult to effectively penetrate the high-temperature boundary layer, resulting in uneven diffusion of reactive gases and unstable deposition rate, which will affect the film density and adhesion. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a process for preparing ultrathin, high-strength float glass, which solves the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a process for preparing ultra-thin, high-strength float glass, comprising: Step 1: melting glass raw materials at high temperature in a melting furnace to form a uniform glass melt, which continuously flows into a tin bath; Step 2: the glass melt floats on the surface of the molten tin in the tin bath to form a glass strip, which is then edged by an edge-pulling machine to achieve the target size; Step 3: in the latter half of the tin bath, an online coating is applied to the surface of the glass strip using chemical vapor deposition, wherein a coating device introduces reactive gas onto the glass surface in an accelerated, non-jet manner, and the gas undergoes a chemical reaction on the glass surface under high temperature to form a uniform functional film; Step 4: the coated glass strip is drawn into an annealing furnace for gradient annealing to eliminate internal stress.

[0008] Furthermore, the coating device includes a nozzle assembly, which includes a set of inner nozzles and a set of outer nozzles. Both the inner and outer nozzles are provided with air jet holes. Gas is accelerated and ejected along the air jet holes. The airflows from the two opposite air jet holes on the inner and outer nozzles converge, canceling the airflow jet force and forming a diffused airflow to coat the glass.

[0009] Furthermore, the outer nozzle and the inner nozzle are two concentric spiral jet pipes with different diameters and opposite spiral directions, so that the airflow from the two opposite jet holes on the inner nozzle and the outer nozzle converges in a spiral convection manner.

[0010] Furthermore, the outer nozzle and the inner nozzle are two sets of concentric annular jet pipes with different diameters. The annular jet pipes are evenly spaced vertically, and adjacent annular jet pipes are connected by a connecting pipe, so that the airflow from the two opposite jet holes on the inner nozzle and the outer nozzle converges in a convective manner forming an angle.

[0011] Furthermore, both the outer nozzle and the inner nozzle are conical structures with a large upper radius and a small lower radius.

[0012] Furthermore, multiple sets of fixing plates are arranged along the width of the tin bath. The fixing plates are divided into three parts: left, middle and right. The left and right fixing plates are inclined towards the middle. The lower end of the fixing plate is provided with evenly distributed connecting air pipes. The connecting air pipes can be adjusted up and down in a direction perpendicular to the fixing plate. The lower end of the connecting air pipes is provided with upper and lower rotating discs stacked on top of each other. The upper and lower rotating discs are connected to the external spray pipe and the internal spray pipe, respectively, and the two can rotate synchronously in opposite directions.

[0013] Furthermore, the lower rotating disk is fixedly connected to the connecting air pipe, and the upper rotating disk is rotatably connected to the connecting air pipe. A rotating gear is fixedly fitted on the outside of the connecting air pipe. The rotating gear is located above the upper rotating disk. A fixed toothed ring fitted on the outside of the rotating gear is installed on the upper end of the upper rotating disk. A transmission gear meshes between the rotating gear and the fixed toothed ring.

[0014] Furthermore, the connecting air tube is rotatably installed at the lower end of the fixed pipe, and a connecting block is fixedly fitted on the outside of the fixed pipe. Control columns are installed on both the left and right sides of the connecting block. A chain is rotatably installed at the lower end of the fixed plate, and a wave-shaped guide groove with continuous undulation and sliding cooperation with the control column is opened on the inner wall of the chain.

[0015] Furthermore, a chain is installed on the inner side of the lower end of the chain belt, and a spline structure is provided on the outer side of the connecting air tube. A linkage sprocket that can slide up and down along the spline is fitted on it. The linkage sprocket meshes with the chain. The linkage sprocket is rotatably installed below the fixed plate through a connecting ring. An avoidance groove is provided on the connecting ring for the control column to pass through. A chain link is fixedly fitted on the outer side of the chain belt. A drive sprocket meshes with the outer side of the chain link. The drive sprocket is rotatably installed at the lower end of the fixed plate. A movable chain plate meshes with the other side of the drive sprocket.

[0016] Furthermore, the middle fixed plate is installed between the lower ends of the two horizontal plates distributed in front and behind, and the left and right fixed plates are respectively installed between the lower ends of the two inclined plates distributed in front and behind. The inclined plates are hinged to the corresponding horizontal plates through a rotating shaft, and the left and right inclined plates can drive the corresponding fixed plates to swing symmetrically back and forth.

[0017] The present invention has the following beneficial effects:

[0018] (1) The ultra-thin high-strength float glass preparation process is achieved by setting up a set of inner nozzles and a set of outer nozzles. The lower part of the outer side of the inner nozzle and the lower part of the inner side of the outer nozzle are provided with air jet holes. The gas is accelerated and ejected along the air jet holes. The airflow of the two air jet holes on the inner and outer nozzles converges, cancels the air jet force, and forms a diffuse airflow to coat the glass. In addition, the inner nozzle and the outer nozzle can rotate synchronously in opposite directions to form opposing airflow, which effectively cancels the rotation momentum and avoids the airflow from impacting the glass surface in a vortex shape, significantly reducing the film ripples and thickness unevenness.

[0019] (2) In this ultra-thin high-strength float glass preparation process, both the inner and outer nozzles adopt a conical structure with a larger upper end and a smaller lower end. The upper end is far away from the glass surface, which reduces the impact intensity of the high-energy airflow and plays a protective role. The lower end is close to the glass, so the airflow is gentle and avoids damage. At the same time, the conical design also facilitates the uniform dispersion of gas along the radial direction, prevents excessive local flow velocity, improves the gentleness of the spray and the uniformity of the coverage, and can effectively improve the stability of the airflow, improve the density, flatness and film formation consistency of the film layer.

[0020] (3) The ultra-thin high-strength float glass preparation process forms a converging layout by setting three fixed plates at three angles: right-tilted, vertical, and left-tilted. This effectively eliminates airflow blind spots, improves the continuity and uniformity of gas coverage on the glass surface, and the fixed plates on the left and right sides can drive the corresponding nozzle components to swing back and forth, further expanding the spray range and realizing multi-directional airflow dynamic coordination. This significantly suppresses airflow disturbance caused by high-speed glass operation, enhances coating stability, and is conducive to obtaining high-flatness, high-quality functional films, improving film uniformity and process reliability.

[0021] (4) In this ultra-thin high-strength float glass preparation process, the nozzle assembly on the same fixed plate can alternately move up and down, and the nozzle assembly between different fixed plates can also alternately move to form a continuous fluctuating gas supply mode. This mode effectively promotes uniform diffusion of the reaction gas, enhances the contact effect with high-temperature glass, and significantly improves the consistency of the transverse and longitudinal distribution of the film layer. At the same time, the dynamic fluctuating spraying mode has good adaptability. When slight shaking or vibration occurs during the glass belt transmission process, the spraying deviation can be compensated by periodic airflow adjustment, reducing the uneven coating caused by changes in glass posture, and improving the coating uniformity and process stability.

[0022] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0023] Figure 1 Flowchart of the manufacturing process for ultrathin high-strength float glass;

[0024] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 3 for Figure 2 Partial sectional plan view;

[0026] Figure 4 This is a bottom view of the pusher frame, mounting frame, and nozzle assembly in this invention.

[0027] Figure 5 for Figure 4 A top-view structural diagram;

[0028] Figure 6 for Figure 5 Enlarged structural diagram of region A in the middle;

[0029] Figure 7 This is a partial structural diagram of the movable chain plate, drive sprocket, and chain link in this invention;

[0030] Figure 8 This is a partial cross-sectional view of the fixing plate in this invention;

[0031] Figure 9 This is a partial cross-sectional view of the chain belt in this invention;

[0032] Figure 10 This is a partial cross-sectional view of the linkage sprocket in Embodiment 1 of the present invention;

[0033] Figure 11 This is a partial cross-sectional view of the nozzle assembly in Embodiment 1 of the present invention;

[0034] Figure 12 This is a schematic diagram showing the location of the jet hole in Embodiment 1 of the present invention;

[0035] Figure 13 This is a schematic diagram of the nozzle assembly in Embodiment 2 of the present invention;

[0036] Figure 14 This is a diagram showing the convergence of airflow from one set of inner and outer annular jet pipes in Embodiment 2 of the present invention.

[0037] In the diagram, 1. Tin bath; 2. Coating device; 21. Fixing plate; 211. Connecting air pipe; 212. Rotating disk; 213. Fixing pipe; 214. Connecting block; 215. Control column; 216. Chain belt; 217. Corrugated guide groove; 218. Rotary gear; 219. Fixing gear ring; 22. Nozzle assembly; 221. Spiral jet pipe; 222. Auxiliary pipe; 223. Annular jet pipe; 231. Transmission gear; 232. L-shaped bracket; 234. Chain; 235. Linkage sprocket; 236. Connecting ring; 237. Chain link; 238. Drive sprocket; 239. Moving chain plate; 240. Horizontal plate; 241. Inclined plate; 242. Rotating shaft; 243. Mounting bracket; 244. Guide column; 245. Guide groove; 246. Push frame; 247. Cylinder; 248. Rotating column; 249. Spiral groove; 250. Matching protrusion. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0040] The following is based on Figures 1-14 This invention describes a process for preparing ultrathin, high-strength float glass according to an embodiment of the present invention.

[0041] Example 1, this example refers to Figures 1-12 .

[0042] Please refer to Figure 1 and Figure 2 The process for manufacturing ultrathin, high-strength float glass includes the following steps:

[0043] Step 1: The glass raw material is melted at high temperature in the melting furnace to form a uniform glass melt, which is continuously flowed into the tin bath 1.

[0044] Step 2: In the tin bath 1, the molten glass floats on the surface of the molten tin to form a glass strip. The glass strip is then edged by an edge-pulling machine to achieve the target size.

[0045] Step 3: In the latter half of the tin bath 1, the glass strip surface is coated online by chemical vapor deposition. The coating device 2 introduces reactive gas into the glass surface in an accelerated non-jet manner. Under high temperature, the gas undergoes a chemical reaction on the glass surface to form a uniform functional film.

[0046] Step 4: The coated glass ribbon is drawn into the annealing furnace for gradient annealing to eliminate internal stress.

[0047] In step three, the coating device 2 adopts a fluctuating air supply mode and combines the jet direction of inclined jet and vertical jet to optimize the airflow distribution.

[0048] In addition, such as Figure 3 As shown, the coating device 2 in step three includes multiple sets of fixing plates 21 arranged along the width of the tin bath 1. The fixing plates 21 are divided into three parts: left, middle and right, which are used to provide an installation base for gas supply. The fixing plates 21 on the left and right sides are inclined towards the middle to form a converging layout, so that the sprayed reaction gas is sprayed in a composite manner in three directions: right-leaning, vertical and left-leaning. This effectively avoids airflow blind spots and enhances the continuity and uniformity of gas coverage on the glass surface.

[0049] like Figures 8-11As shown, multiple connecting air pipes 211 are evenly arranged along the length of the lower end of the fixed plate 21. The lower end of the connecting air pipes 211 is provided with upper and lower rotating disks 212 stacked on top of each other. The two are connected to the interior of the connecting air pipes 211. A nozzle assembly 22 is provided below the rotating disks 212. The nozzle assembly 22 includes a set of inner nozzles and a set of outer nozzles. Both the inner and outer nozzles are provided with air jet holes. The gas is accelerated and ejected along the air jet holes. The airflows of the two opposite air jet holes on the inner and outer nozzles converge, canceling the air jet force and forming a diffused airflow to coat the glass.

[0050] Furthermore, the connecting air pipe 211 can be adjusted up and down in a direction perpendicular to the fixed plate 21. The connecting air pipe 211 is rotatably installed at the lower end of the fixed pipe 213. After the upper end of the fixed pipe 213 slides through the fixed plate 21, it is connected to the existing coating gas supply system using a retractable sealing connection structure (such as a corrugated pipe or telescopic sleeve). While ensuring the stable delivery of the reaction gas, the connecting air pipe 211 is allowed to drive the rotating disk 212 and the nozzle assembly 22 to be adjusted up and down in the vertical direction.

[0051] When the coating gas supply system is working, the reactive gas is conducted to the nozzle assembly 22 through the fixed pipe 213, the connecting gas pipe 211 and the rotating disk 212. Online coating is achieved during the movement of the glass belt. Each nozzle assembly 22 on the same fixed plate 21 can rise and fall alternately. The rising and falling motion of the nozzle assemblies 22 between adjacent fixed plates 21 alternates, forming a continuous fluctuating gas supply mode. This effectively disturbs and breaks the airflow boundary layer on the glass surface, enhances the diffusion ability of the reactive gas on the high-temperature glass surface, and improves the uniformity of the film distribution. In addition, the corresponding nozzle assemblies 22 on the left and right fixed plates 21 can drive the corresponding nozzle assemblies 22 to swing back and forth synchronously, further expanding the gas coverage area. By using multi-directional airflow iteration, the airflow disturbance caused by the high-speed movement of the glass is significantly weakened, the stability of the coating process is improved, and it helps to obtain a functional film with high flatness and high quality.

[0052] It should be noted that the coating gas supply system is installed in a sealed manner inside the tin bath 1. The connection between the system and the side wall and top cover of the tin bath 1 adopts a high-temperature sealing structure to prevent gas leakage. All components of the system are made of high-temperature and corrosion-resistant materials, such as stainless steel or high-temperature alloys, to ensure long-term stable operation in the continuous high-temperature environment of 600-700℃ in the tin bath 1. At the same time, protective gas holes (not specifically shown in the figure) are provided around the coating area to connect with the existing gas source. Nitrogen or inert gas can be introduced to form a directional gas curtain, which effectively isolates the reducing atmosphere in the tin bath 1 from entering the coating area and avoids interference with the reaction gas or contamination of the film surface.

[0053] Specifically, such as Figure 10 and Figure 11As shown, the outer nozzle and the inner nozzle are two concentric spiral jet pipes 221 with different diameters and opposite spiral directions. The spiral jet pipes 221 are connected to the corresponding rotating disks 212. After the reaction gas enters the spiral jet pipes 221 through the rotating disks 212, in this embodiment, the jet outlet of the inner spiral jet pipe 221 is located on the outer side, and the jet outlet of the outer spiral jet pipe 221 is located on the inner side. (Refer to...) Figure 12 To better understand, when the gas is ejected from the nozzle, it is ejected tangentially along its spiral channel, causing the airflow from the two opposing nozzles on the inner and outer nozzles to converge in a spiral convection manner. After the convergence, the jet force decreases, achieving the purpose of coating the film in a diffused form. Furthermore, the upper and lower rotating disks 212 can rotate synchronously in opposite directions, causing the outer nozzle and the inner nozzle to rotate synchronously in opposite directions. The airflow in the inner and outer layers generates opposite rotational momentum during the jetting process, which cancels out the spiral disturbance effect and prevents the gas from impacting the glass surface in a vortex shape, thereby reducing uneven film layer or ripple defects and achieving a more stable and uniform airflow coverage.

[0054] In addition, both the outer and inner nozzles are conical structures with a large upper radius and a small lower radius. In this embodiment, the upper diameter of the spiral jet pipe 221 is larger than the lower diameter, and the larger upper radius portion is farther from the glass surface. While ensuring effective coverage, this keeps the high-energy airflow area away from the glass, significantly reducing the airflow impact intensity and preventing micro-deformation or surface disturbance of the glass due to excessive local pressure, thus providing good protection. The smaller lower radius portion is closer to the glass surface, but due to the gradual contraction of the flow cross section, the airflow velocity tends to be stable, and the energy distribution is gentle. This allows for precise gas supply at close range without damaging the ultra-thin glass under high temperature conditions. At the same time, the conical structure facilitates the uniform radial distribution of the reactant gas inside the spiral jet pipe 221, slowing down sudden changes in flow velocity, suppressing local turbulence and jet concentration, and improving the stability and diffusion uniformity of the gas jet.

[0055] In addition, an auxiliary tube 222 is uniformly distributed on the outside of the outer spiral jet pipe 221 corresponding to the intermediate fixed plate 21. The auxiliary tube 222 is connected to the inside of the spiral jet pipe 221 and is hinged to the outer wall of the spiral jet pipe 221. It can expand outward under the action of centrifugal force. When the outer spiral jet pipe 221 rotates with the corresponding rotating disk 212, the gas pushes the auxiliary tube 222 to open outward around the hinge point under the action of centrifugal force, forming a radially expanded auxiliary injection channel. At the same time, the airflow is further diffused to the periphery after being guided by the auxiliary tube 222. The centrifugal effect generated by the rotation realizes the dynamic expansion of the injection range, effectively enhances the gas coverage capability, compensates for the non-uniformity caused by the airflow attenuation in the central area, and improves the overall film consistency.

[0056] like Figure 8-10As shown, to enable the connecting air pipe 211 to be adjusted up and down along the direction perpendicular to the fixed plate 21, a connecting block 214 is fixedly fitted on the outside of the fixed pipe 213. Control columns 215 are installed on both the left and right sides of the connecting block 214. A chain belt 216 is rotatably installed at the lower end of the fixed plate 21. The inner wall of the chain belt 216 has a continuous undulating wave-shaped guide groove 217 that slides with the control column 215. The chain belt 216 can rotate circumferentially. During this process, the wave-shaped guide groove 217 on the inner wall of the chain belt 216 interacts with the control column 215, pushing the control column 215 to move up and down along the trajectory of the wave-shaped guide groove 217. Then, through the connecting block 214, the fixed pipe 213, the connecting air pipe 211, the rotating disk 212 and the nozzle assembly 22 are moved up and down synchronously as a whole, forming a wave-shaped air supply path, which effectively disturbs the surface airflow boundary layer and improves the uniformity of the reaction gas distribution.

[0057] like Figure 10 and Figure 11 As shown, to achieve synchronous reverse rotation of the upper and lower rotating disks 212, the lower rotating disk 212 is fixedly connected to the connecting air pipe 211, so that it rotates synchronously with the connecting air pipe 211 and drives the lower spiral jet pipe 221 to rotate synchronously. The upper rotating disk 212 is rotatably connected to the connecting air pipe 211, which can achieve relatively independent rotational motion. A rotating gear 218 is fixedly fitted on the outside of the connecting air pipe 211. The rotating gear 218 is located above the upper rotating disk 212. A fixed toothed ring 219 is installed on the upper end of the upper rotating disk 212 and fitted on the outside of the rotating gear 218. A transmission gear 231 meshes between the rotating gear 218 and the fixed toothed ring 219. The transmission gear 231 is rotatably installed on the horizontal section of the L-shaped bracket 232. The vertical section of the L-shaped bracket 232 is fixedly connected to the corresponding control column 215 to ensure the synchronization and stability of the overall lifting.

[0058] During operation, the connecting air pipe 211 drives the lower rotating disk 212 and the rotating gear 218 fixed on its outer side to rotate synchronously. Since the fixed gear ring 219 is installed on the upper end of the upper rotating disk 212 and meshes with the rotating gear 218 through the transmission gear 231, when the rotating gear 218 rotates, the transmission gear 231 generates a reverse transmission effect between it and the fixed gear ring 219, thereby driving the fixed gear ring 219 together with the upper rotating disk 212 to rotate in the opposite direction to the lower rotating disk 212.

[0059] In addition, a chain 234 is installed on the inner side of the lower end of the chain belt 216, and a spline structure is provided on the outer side of the connecting air pipe 211. A linkage sprocket 235 that can slide up and down along the spline is fitted on it. The linkage sprocket 235 meshes with the chain 234. When the chain belt 216 rotates, the chain 234 drives the linkage sprocket 235 to rotate synchronously. Then, the torque is transmitted to the connecting air pipe 211 through the spline to realize its circumferential rotation. As the connecting air pipe 211 moves up and down with the overall structure, the linkage sprocket 235 slides along the spline and always maintains the transmission connection with the connecting air pipe 211. This does not affect the vertical reciprocating motion and can continuously provide rotational power to ensure the stable operation of the rotating disk 212 and the nozzle assembly 22. The linkage sprocket 235 is rotatably installed under the fixed plate 21 through the connecting ring 236. The connecting ring 236 has a clearance groove for the control column 215 to pass through, so that the control column 215 can move up and down without obstruction and ensure smooth and reliable lifting action.

[0060] like Figure 4 , Figure 7 and Figure 8 As shown, in order to realize the rotational movement of the chain belt 216, a chain link 237 is fixedly mounted on the outside of the chain belt 216. A drive sprocket 238 is engaged on the outside of the chain link 237. The drive sprocket 238 is rotatably mounted on the lower end of the fixed plate 21. A movable chain plate 239 is engaged on the other side of the drive sprocket 238. When the movable chain plate 239 moves back and forth in the front and back direction, it drives the drive sprocket 238 to perform alternating forward and reverse movements, thereby driving the chain belt 216 to rotate synchronously through the chain link 237.

[0061] In addition, such as Figure 5 and Figure 7 As shown, the middle fixed plate 21 is installed between the lower ends of the two horizontal plates 240 distributed in front and behind, forming a stable support structure. The left and right fixed plates 21 are respectively installed between the lower ends of the two inclined plates 241 distributed in front and behind. The inclined plates 241 are hinged to the corresponding horizontal plates 240 through the pivot 242, and the inclined plates 241 are fixedly connected to the pivot 242. Thus, the left and right fixed plates 21 can swing back and forth relative to the middle fixed plate 21 through the pivot 242.

[0062] And, as Figure 4 and Figure 5As shown, the upper end of the tin bath 1 is provided with two mounting brackets 243 distributed front and back. The horizontal plate 240 is fixedly connected to the mounting bracket 243. The inclined plate 241 is equipped with a guide post 244 on the side near the mounting bracket 243. The mounting bracket 243 is provided with a guide groove 245 that slides with the guide post 244. When the inclined plate 241 swings around the pivot 242, the guide post 244 moves along the guide groove 245, which guides and supports the swinging process of the left and right fixed plates 21. The movable chain plate 239 is slidably disposed between the front and rear mounting brackets 243. The mounting bracket 243 is provided with an arc-shaped groove that slides with the movable chain plate 239 on the left and right sides. During the swinging process of the left and right fixed plates 21, the movable chain plate 239 moves synchronously, and the arc-shaped groove provides guidance and support for it.

[0063] To achieve the reciprocating movement of the movable chain plate 239, a pusher frame 246 is provided behind the mounting frame 243 located at the rear. The movable chain plate 239 in the middle is fixedly connected to the pusher frame 246, and the movable chain plates 239 on the left and right sides are slidably connected to the pusher frame 246, allowing the movable chain plates 239 on the left and right sides to be displaced relative to the pusher frame 246 during the swing of the fixed plate 21. A cylinder 247 is installed on the mounting frame 243 located at the rear. The piston rod of the cylinder 247 is fixedly connected to the pusher frame 246. The cylinder 247 can push the pusher frame 246 to move linearly in the front-back direction through its piston rod, thereby driving the movable chain plate 239 connected to it to move synchronously.

[0064] like Figure 5 and Figure 6 As shown, to achieve the reciprocating rotation of the rotating shaft 242, a rotating column 248 is installed at the rear end of the rotating shaft 242. The rotating column 248 and the push frame 246 slide in a sliding fit. The outer circumference of the rotating column 248 is provided with a spiral groove 249, and the spiral grooves 249 on the left and right rotating columns 248 rotate in opposite directions. The push frame 246 is provided with a mating protrusion 250 that slides in a sliding fit with the spiral groove 249. When the cylinder 247 drives the push frame 246 to move reciprocally in the front-back direction, the mating protrusion 250 slides in the spiral groove 249. Since the spiral grooves 249 on both sides rotate in opposite directions, the movement of the push frame 246 respectively drives the left and right rotating columns 248 to generate rotational motions in opposite directions, thereby driving the rotating shafts 242 on both sides to swing back and forth synchronously. The rotating shaft 242 is fixedly connected to the inclined plate 241, which in turn drives the left and right fixed plates 21 to swing in a coordinated manner around the hinge point, thereby achieving symmetrical opening and closing or retracting motion.

[0065] In actual operation (use), the glass strip is formed by edge pulling in the tin bath 1 and then enters the subsequent coating area to begin online coating. At this time, the cylinder 247 drives the pusher frame 246 to reciprocate linearly in the front-back direction. The pusher frame 246, through the cooperation protrusion 250 on it, cooperates with the reverse spiral groove 249 on the left and right rotating columns 248, converting the linear motion into the reciprocating rotation of the rotating columns 248. This, in turn, drives the left and right tilting plates 241 and the fixed plate 21 below them to swing synchronously through the rotating shaft 242, realizing the sweeping of the nozzle assembly 22 in the glass width direction. At the same time, the pusher frame 246 drives the moving chain plate 239 to move synchronously. The moving chain plate 239 drives the drive sprocket 238 to rotate in both directions, and drives the chain link 237 and the chain belt 216 to rotate. The wave-shaped guide groove 217 on the inner wall of the chain belt 216 cooperates with the control column 215. The control column 215 is driven to move up and down reciprocally, which in turn drives the connecting block 214, fixed pipe 213, connecting air pipe 211, rotating disk 212 and nozzle assembly 22 to achieve vertical undulating motion. During the rotation of the chain belt 216, its lower chain 234 drives the linkage sprocket 235 to rotate. The linkage sprocket 235 transmits torque to the connecting air pipe 211 through the spline structure, making it rotate synchronously. The connecting air pipe 211 drives the lower rotating disk 212 and rotating gear 218 to rotate in the same direction. Then, through the transmission gear 231 meshing with the fixed gear ring 219, it drives the upper rotating disk 212 to rotate in the opposite direction, realizing the synchronous reverse rotation of the upper and lower rotating disks 212. The outer nozzle and inner nozzle rotate synchronously with the corresponding rotating disk 212, spraying the reaction gas onto the glass surface in a gentle, uniform and wide-range manner.

[0066] Example 2, this implementation refers to Figure 13 and Figure 14 .

[0067] The difference between this embodiment and Embodiment 1 is that the outer nozzle and the inner nozzle are two sets of concentric annular jet pipes 223 with different diameters. The annular jet pipes 223 are evenly spaced vertically, and adjacent annular jet pipes 223 are connected by a connecting pipe to form a gas flow channel. In this embodiment, the jet hole of the inner ring is located on the outer side near the bottom, and the jet hole of the outer ring is located on the inner side near the bottom. The airflow from the two opposite jet holes on the inner and outer nozzles converges in a convective manner forming an angle. (Refer to...) Figure 14 To better understand, following the same driving method as in the aforementioned Embodiment 1, the upper and lower rotating disks 212 can respectively drive the outer nozzle and the inner nozzle to rotate synchronously in opposite directions.

[0068] During operation, the reactive gas can be ejected simultaneously from two concentric annular regions, covering a wider area and distributing more continuously. As the rotating disk 212 rotates, the annular jet pipe 223 drives the airflow to rotate synchronously, promoting uniform diffusion of the gas on the glass surface, avoiding concentrated impact, and achieving a gentle, large-area airflow coverage. Furthermore, the inner and outer annular jet regions can complement each other, effectively reducing film thickness fluctuations and improving coating uniformity and density.

[0069] Furthermore, the auxiliary tube 222 is uniformly installed circumferentially on the outside of the outer nozzle corresponding to the middle fixed plate 21 through a hinge structure, and is connected to the inside of the outer nozzle. When the outer nozzle rotates with the upper rotating disk 212, under the action of centrifugal force, the auxiliary tube 222 automatically opens outward around the hinge point to form a radially expanded auxiliary injection channel, so that some of the reaction gas is ejected along the expansion direction, further expanding the airflow coverage range.

[0070] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0071] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A process for making an ultra-thin, high-strength float glass, characterized in that, The application relates to a functional film coating device for a glass ribbon. The application comprises the following steps: (1) melting glass raw materials in a melting furnace to form a uniform glass melt, and continuously flowing the glass melt into a tin bath (1); (2) floating the glass melt on the surface of tin liquid in the tin bath (1) to form a glass ribbon, and performing edge trimming on the glass ribbon by a trimming machine to reach a target size; (3) performing on-line film coating on the surface of the glass ribbon by a chemical vapor deposition method in the second half of the tin bath (1), introducing reaction gas to the surface of the glass ribbon by an accelerated non-spraying method through a film coating device (2), and chemically reacting the gas on the surface of the glass ribbon under the action of high temperature to form a uniform functional film; and (4) pulling the film-coated glass ribbon into an annealing furnace to perform gradient annealing to eliminate internal stress. The film coating device (2) comprises a nozzle assembly (22), the nozzle assembly (22) comprises a group of inner nozzles and a group of outer nozzles, the inner nozzles and the outer nozzles are respectively provided with gas injection holes, the gas is accelerated and sprayed out along the gas injection holes, the gas flows of the two opposite gas injection holes on the inner nozzles and the outer nozzles intersect, the gas flow injection force is offset, and the glass is coated by the dispersed gas flow. The outer nozzles and the inner nozzles are respectively two spiral gas injection pipes (221) with different diameters and opposite spiral directions, so that the gas flows of the two opposite gas injection holes on the inner nozzles and the outer nozzles intersect in the form of spiral convection. Or the outer nozzles and the inner nozzles are respectively two groups of annular gas injection pipes (223) with different diameters, the annular gas injection pipes (223) are arranged in an upper and lower uniform interval, the upper and lower adjacent annular gas injection pipes (223) are connected through connecting pipes, the gas flows of the two opposite gas injection holes on the inner nozzles and the outer nozzles intersect in the form of convection with an included angle. A plurality of fixed plates (21) are arranged along the width direction of the tin bath (1), the fixed plates (21) are divided into left, middle and right parts, and the left and right fixed plates (21) are inclinedly arranged towards the middle. The lower end of the fixed plate (21) is provided with uniformly distributed connecting gas pipes (211), the connecting gas pipes (211) can be adjusted up and down along the direction perpendicular to the fixed plate (21), the lower end of the connecting gas pipes (211) is provided with upper and lower rotating discs (212) stacked in an upper and lower mode, the upper and lower rotating discs (212) are respectively connected with the outer nozzles and the inner nozzles, and the two can synchronously and reversely rotate. The outer nozzles and the inner nozzles are both conical structures with large radii at the upper ends and small radii at the lower ends. The lower rotating disc (212) is fixedly connected with the connecting gas pipe (211), the upper rotating disc (212) is rotatably connected with the connecting gas pipe (211), a rotating gear (218) is fixedly sleeved outside the connecting gas pipe (211), the rotating gear (218) is located above the upper rotating disc (212), a fixed gear ring (219) is installed at the upper end of the upper rotating disc (212) and is sleeved outside the rotating gear (218), and a transmission gear (231) is engaged between the rotating gear (218) and the fixed gear ring (219). ​ 2. A process for making an ultra-thin, high-strength float glass according to claim 1, wherein ​ 3. A process for making ultra-thin, high-strength float glass according to claim 1, wherein ​ 4. The process for producing ultra-thin, high-strength float glass according to claim 3, wherein The connecting air pipe (211) is rotatably installed at the lower end of the fixed pipe (213), the outer side of the fixed pipe (213) is fixedly sleeved with a connecting block (214), the left and right sides of the connecting block (214) are both installed with a control column (215), the lower end of the fixed plate (21) is rotatably provided with a chain belt (216), and the inner wall of the chain belt (216) is provided with a wave-shaped guide groove (217) which is continuously undulating and is in sliding cooperation with the control column (215).

5. The process for producing ultra-thin, high-strength float glass according to claim 4, wherein The lower end of the chain belt (216) is internally installed with a chain (234), the outer side of the connecting air pipe (211) is provided with a spline structure, a linkage sprocket (235) capable of sliding up and down along the spline is sleeved on the spline structure, the linkage sprocket (235) is engaged with the chain (234), the linkage sprocket (235) is rotatably installed below the fixed plate (21) through a connecting ring (236), and the connecting ring (236) is provided with an avoiding groove for the control column (215) to pass through; The outer side of the chain belt (216) is fixedly sleeved with a chain ring (237), the outer side of the chain ring (237) is engaged with a driving sprocket (238), the driving sprocket (238) is rotatably installed at the lower end of the fixed plate (21), and the other side of the driving sprocket (238) is engaged with a moving chain plate (239).

6. The process for producing ultra-thin, high-strength float glass according to claim 5, wherein The fixed plate (21) located in the middle is installed between the lower ends of two horizontally distributed horizontal plates (240), the fixed plates (21) on the left and right sides are respectively installed between the lower ends of two horizontally distributed inclined plates (241), the inclined plates (241) are hinged to the corresponding horizontal plates (240) through rotating shafts (242), and the inclined plates (241) on the left and right sides can drive the corresponding fixed plates (21) to symmetrically reciprocate.

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