Conveyor and method for assisting production of coated heat-insulating ultraviolet-proof glass
By using symmetrically arranged vacuum transition chambers and a rotary pre-vacuum conveying system, continuous automated conveying and pre-vacuuming of glass substrates are achieved, solving the problems of low efficiency and insufficient automation in the production of coated heat-insulating and UV-resistant glass, and ensuring the pollution-free conveying of glass substrates in a vacuum environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SICHUAN BOAOTENG GLASS PRODUCTS CO LTD
- Filing Date
- 2025-12-25
- Publication Date
- 2026-04-14
AI Technical Summary
In the existing production of coated heat-insulating and UV-protective glass, the glass substrate conveyor has low efficiency and insufficient automation, and is prone to introducing pollution, which affects the coating quality.
The system employs a symmetrically arranged vacuum transition chamber and a rotary pre-vacuum conveying system, integrating glass conveying, transition chamber sealing, and pre-vacuum conveying functions to achieve continuous automated conveying of glass substrates. The rotary pre-vacuum conveying system utilizes a rotation and vacuum module to fix and seal the glass substrates, ensuring a vacuum environment.
It improves the production efficiency of coated heat-insulating and UV-resistant glass, solves the problems of cumbersome operation and insufficient automation of traditional conveyors, and ensures the pollution-free transport of glass substrates in a vacuum environment.
Smart Images

Figure CN121849656A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of conveying equipment technology, specifically to a conveyor and method for assisting in the production of coated heat-insulating and UV-resistant glass. Background Technology
[0002] Coated heat-insulating and UV-blocking glass (commonly known as Low-E glass, solar control coated glass, or heat-insulating coated glass) is a special type of glass that selectively reflects solar heat radiation (infrared rays) and blocks ultraviolet rays while maintaining high visible light transmittance by depositing one or more functional thin films on the glass surface.
[0003] Its core production process generally uses offline magnetron sputtering, which involves bombarding a metal or alloy target with high-energy ions (usually argon ions) in a vacuum chamber, causing the target atoms or molecules to be sputtered out and deposited onto the surface of a glass substrate that is continuously transported in the vacuum chamber to form a thin film.
[0004] The pre-coating conveying system transitions the cleaned and dried glass substrate from the atmospheric environment into the vacuum lock chamber's transition zone. A specialized robotic arm or pusher system feeds the glass from the atmospheric end into the primary vacuum lock chamber. Under vacuum conditions, high-precision, low-outgas, wear-resistant metal-ceramic rollers are typically used to control the glass substrate's uniform movement. After coating, the glass is conveyed to the exit vacuum lock chamber. A mechanical device then smoothly removes it from the vacuum environment.
[0005] In the existing production of coated heat-insulating and UV-resistant glass, the glass substrate is usually transported from the conveyor line to the vacuum coating chamber 1 in the following ways: (1) The operator manually or by using a robotic arm or robot picks up the glass substrate from the conveyor line and places it on the carrier of the coating chamber, and then closes the vacuum chamber to draw a vacuum. This method is inefficient, labor-intensive, and easily introduces contamination (such as dust and fingerprints), which affects the coating quality. (2) Use multiple vacuum transition chambers 3 or vacuum locks to perform segmented vacuuming. The glass substrate enters the pre-vacuum chamber through the conveyor line. After vacuuming, it is transferred to the main vacuum chamber through the valve. This method involves complex equipment, large floor space, and long vacuum lock switching time, resulting in slow production pace. Summary of the Invention
[0006] The purpose of this invention is to provide a conveyor and method for assisting in the production of coated heat-insulating and UV-resistant glass, aiming to solve the problems existing in the current conveyor.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a conveyor for auxiliary production of coated heat-insulating and UV-resistant glass, comprising a vacuum coating chamber, a vacuum channel, a vacuum transition chamber, a feeding conveyor line, a coating conveyor line, and a discharging conveyor line; two sets of the vacuum transition chambers are symmetrically arranged on both sides of the vacuum channel; the coating conveyor line is disposed within the vacuum channel; and further comprising: External conveying ports symmetrically arranged on both sides of the vacuum transition chamber; The rotary pre-vacuum conveying system is installed in the vacuum transition chamber. The rotary pre-vacuum conveying system includes a bottom shell, a top cover, a drive module, a container, a pre-vacuum conveying module, and an adjustment module. The pre-vacuum conveying module is installed in the container. The container is fixedly installed between the bottom shell and the top cover. The bottom shell and the top cover are fixedly connected. The drive module is drivenly connected to the top cover. An inner conveying port is provided at one end of the container, and the outer conveying port can be aligned with the inner conveying port; The pre-vacuum conveying module includes a conveying module and a vacuum module. The conveying module includes a rotating frame, a three-way pipe, a meniscus, an adsorption core plate, and a conveying side wheel assembly. The three-way pipe, the adsorption core plate, and the conveying side wheel assembly are all integrated on the rotating frame. The vacuum module is connected to one end of the three-way pipe, and the other two ends of the three-way pipe are respectively connected to the adsorption core plate and the container. Both the rotating frame and the meniscus are in sliding contact with the inner wall of the container. The adjustment module is used to control the rotating frame to rotate 180 degrees.
[0008] A conveying method for auxiliary production of coated heat-insulating and UV-resistant glass includes: S100: The drive module controls the rotary pre-vacuum conveying system to rotate at a preset angle to align the inner conveying port with the outer conveying port. The feeding conveyor line sends the cleaned and dried glass substrate into the container through the outer and inner conveying ports. S200: The glass substrate is transported from the side of the glass substrate to the surface of the adsorption core plate using the conveying side wheel group. The adsorption core plate is evacuated using the vacuum module and the three-way pipe to adsorb and fix the glass substrate to the surface of the adsorption core plate. S300 uses an adjustment module to control the rotating frame, three-way pipe, half-meniscus, adsorption core plate and conveyor side wheel group to rotate synchronously by 180 degrees. The half-meniscus can seal the inner conveying port. The vacuum module and three-way pipe are used to extract the air in the container to prevent air from entering the vacuum channel. S400: The drive module controls the rotary pre-vacuum conveying system to rotate at a preset angle to align the inner conveying port with the feeding conveyor line in the vacuum channel. The adjustment module controls the rotating frame, three-way pipe, half-moon plate, adsorption core plate and conveyor side wheel assembly to rotate 180 degrees in the opposite direction. The vacuum module and three-way pipe control the adsorption core plate to release the adsorption of the glass substrate. The conveyor side wheel assembly transports the glass substrate from the adsorption core plate to the feeding conveyor line. S500, the feeding conveyor line moves at a constant speed in the vacuum coating chamber, and forms a thin film on the surface of the glass substrate using the offline magnetron sputtering principle; S600: Using the methods in steps S100 to S400, the coated glass product is conveyed from the feeding conveyor line to the unloading conveyor line. The beneficial effects of this invention are as follows: The bottom shell and the top cover of this application slide in contact with the inner wall of the vacuum transition chamber to ensure the sealing of the glass substrate during the conveying process. Several pre-vacuum conveying modules and containers symmetrically distributed about the circular vacuum transition chamber integrate the functions of glass conveying, transition chamber sealing and pre-vacuuming, realizing continuous automated conveying and pre-vacuuming of the glass substrate, improving the production efficiency of coated heat-insulating and UV-resistant glass, and solving the problems of cumbersome operation, insufficient automation and low efficiency of the conveyor used in the production of traditional coated heat-insulating and UV-resistant glass. Attached Figure Description
[0009] Figure 1 This is a longitudinal sectional view of the present invention.
[0010] Figure 2 This is a cross-sectional view of the present invention.
[0011] Figure 3 This is an exploded view of the rotary pre-vacuum conveying system according to an embodiment of the present invention.
[0012] Figure 4 This is a perspective view of the pre-vacuum conveying module according to an embodiment of the present invention.
[0013] Figure 5 This is a perspective view of the container according to an embodiment of the present invention.
[0014] Figure 6 This is a longitudinal sectional view of the container and pre-vacuum conveying module according to an embodiment of the present invention.
[0015] Figure 7 This is a first transverse sectional view of the container and pre-vacuum conveying module according to an embodiment of the present invention.
[0016] Figure 8 This is a second transverse sectional view of the container and pre-vacuum conveying module according to an embodiment of the present invention.
[0017] Figure 9This is a perspective view of the adjustment module according to an embodiment of the present invention.
[0018] Figure 10 This is an assembly diagram of the adjustment module, movable parts, and guide rail module according to an embodiment of the present invention.
[0019] Figure 11 This is an internal schematic diagram of the rotary pre-vacuum conveying system according to an embodiment of the present invention.
[0020] Figure 12 This is a cross-sectional view of the rotary pre-vacuum conveying system according to an embodiment of the present invention.
[0021] Figure label: 1 - Vacuum coating chamber; 2-Vacuum channel; 3-Vacuum transition chamber, 31-External conveying port; 4-Rotary pre-vacuum conveying system; 41-Bottom shell; 42-Top cover; 43-Drive module; 44-Container; 441-Inner conveying port; 442-Limiting frame; 443-Slide rail; 444-Moving part; 45-Pre-vacuum conveying module; 451-Conveying module; 4511-Rotating frame; 4512-T-pipe; 4513-Adsorption core plate; 4514-Conveying side wheel assembly; 4515-Transmission sleeve; 4516-Spiral guide rail; 4517-Meniscus; 4518-Limiting part; 452-Vacuum module; 46-Guide rail module; 461-Arc guide rail one; 462-Arc guide rail two; 463-Radial guide rail; 47-Adjustment module; 471-Telescopic cylinder; 472-Slide rod; 473-C-shaped groove; 5-Feeding conveyor line; 6-Coating conveyor line; 7- Material feeding conveyor line. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.
[0023] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.
[0024] Please see Figures 1 to 12 In one embodiment of the present invention, a conveyor for assisting in the production of coated heat-insulating and UV-resistant glass includes a vacuum coating chamber 1, a vacuum channel 2, a vacuum transition chamber 3, a feeding conveyor line 5, a coating conveyor line 6, and a discharging conveyor line 7. Two sets of the vacuum transition chambers 3 are symmetrically arranged on both sides of the vacuum channel 2. The coating conveyor line 6 is disposed within the vacuum channel 2. The vacuum transition chamber 3 has a circular cross-section. The conveyor also includes: External conveying ports 31 are symmetrically arranged on both sides of the vacuum transition chamber 3; A rotary pre-vacuum conveying system 4 is installed inside the vacuum transition chamber 3. The rotary pre-vacuum conveying system 4 includes a bottom shell 41, a top cover 42, a drive module 43, a container 44, a pre-vacuum conveying module 45, and an adjustment module 47. The pre-vacuum conveying module 45 is installed inside the container 44. The container 44 is fixedly installed between the bottom shell 41 and the top cover 42. The bottom shell 41 and the top cover 42 are fixedly connected. The drive module 43 is drivenly connected to the top cover 42. Both the bottom shell 41 and the top cover 42 are in sliding contact with the inner wall of the vacuum transition chamber 3. An inner conveying port 441 is provided at one end of the container 44. The outer conveying port 31 can be aligned with the inner conveying port 441. A limit frame 442 is fixedly provided at one end of the container 44 away from the inner conveying port 441. A slide rail 443 is provided below the limit frame 442. A movable part 444 is slidably provided in the slide rail 443. The container 44 is a cylindrical sealed barrel. The pre-vacuum conveying module 45 includes a conveying module 451 and a vacuum module 452. The conveying module 451 includes a rotating frame 4511, a three-way pipe 4512, a meniscus 4517, a transmission sleeve 4515, a spiral guide rail 4516, an adsorption core plate 4513, and a conveying side wheel assembly 4514. The three-way pipe 4512, the adsorption core plate 4513, and the conveying side wheel assembly 4514 are all integrated on the rotating frame 4511. The vacuum module 452 is connected to one end of the three-way pipe 4512, and the other two ends of the three-way pipe 4512 are respectively connected to the adsorption core plate 4513 and the receiving... The device 44 is connected, and the surface of the transmission sleeve 4515 is provided with a spiral guide rail 4516. The upper end of the movable part 444 is slidably disposed in the spiral guide rail 4516. The transmission sleeve 4515 is fixedly sleeved on one end of the three-way pipe 4512. The upper part of the limiting frame 442 is connected to the transmission sleeve 4515. The rotating frame 4511 is fixedly provided with a limiting element 4518 on the side away from the inner conveying port 441. The limiting element 4518 is a rubber block. A pressure sensor is provided on the surface of the rubber block. The inner conveying port 441 is distributed above the axis of the three-way pipe 4512 or the transmission sleeve 4515. Both the rotating frame 4511 and the meniscus 4517 are in sliding contact with the inner wall of the container 44. The adjustment module 47 is used to control the rotating frame 4511 to rotate 180 degrees.
[0025] In this embodiment of the invention, each of the three sections of the three-way pipe 4512 is equipped with a solenoid valve. The movable part 444 includes a movable pin and a slider. The lower end of the movable pin is fixedly connected to the slider. The movable pin is slidably disposed in the spiral guide rail 4516. After the meniscus 4517 rotates 180°, it can automatically block the inner conveying port 441 (corresponding to the loading station) or open the inner conveying port 441 (corresponding to the vacuum channel 2).
[0026] Please see Figure 10 In another embodiment of the present invention, a guide rail module 46 is further included, which is fixedly connected to the bottom of the vacuum transition chamber 3. The bottom shell 41 is rotatably connected to the guide rail module 46. The surface of the guide rail module 46 is provided with an arc-shaped guide rail 461, an arc-shaped guide rail 462 and a radial guide rail 463. The radial guide rail 463 passes through the arc-shaped guide rail 461 and the arc-shaped guide rail 462. The lower end of the movable member 444 can be slidably disposed within the arc-shaped guide rail 461 and the arc-shaped guide rail 462.
[0027] Please see Figure 9 and Figure 10 Furthermore, the adjustment module 47 includes a telescopic cylinder 471, a slide rod 472, and an incised groove 473. The fixed end of the telescopic cylinder 471 is fixedly connected to the guide rail module 46, and the slide rod 472 is fixedly connected to the movable end of the telescopic cylinder 471. Both ends of the telescopic cylinder 471 are provided with incised grooves 473. The slide rod 472 is slidably disposed within the radial guide rail 463, and the movable component 444 can enter the incised groove 473. In this embodiment of the invention, the telescopic cylinder 471 drives the slide rod 472 to move two symmetrical movable parts 444 synchronously within the arc-shaped guide rail 461 and the arc-shaped guide rail 462 for a fixed stroke. The upper end of the movable part 444 slides along the spiral guide rail 4516, which can control the transmission sleeve 4515 and the rotating frame 4511 to rotate 180°.
[0028] A conveying method for auxiliary production of coated heat-insulating and UV-resistant glass, comprising: S100. The drive module 43 controls the rotary pre-vacuum conveying system 4 to rotate by a preset angle to align the inner conveying port 441 with the outer conveying port 31. At this time, the adsorption core plate 4513 faces upward, and the movable part 444 is located in the incline groove 473 inside the arc guide rail 461. The feeding conveyor line 5 feeds the cleaned and dried glass substrate into the container 44 through the outer conveying port 31 and the inner conveying port 441. S200: The glass substrate is transported from the side of the glass substrate to the surface of the adsorption core plate 4513 using the conveying side wheel assembly 4514. The limiting component 4518 (rubber block, pressure sensor) is used to limit the glass substrate and monitor the position signal of the glass substrate. The conveying side wheel assembly 4514 can prevent damage to the surface of the glass substrate and the subsequent coating surface. The vacuum module 452 and the three-way pipe 4512 (close the solenoid valve connected to the container 44) are used to evacuate the adsorption core plate 4513 to adsorb and fix the glass substrate to the surface of the adsorption core plate 4513. S300: The telescopic cylinder 471 controls the slide bar 472 and two symmetrical movable parts 444 to move in the same direction. The movable part 444 located within the first arc-shaped guide rail 461 is adjusted to the second arc-shaped guide rail 462, and the movable part 444 located within the second arc-shaped guide rail 462 is adjusted to the first arc-shaped guide rail 461. The two movable parts 444, moving according to a preset stroke, are slidably connected to the spiral guide rail 4516, thus simultaneously controlling two sets of conveying modules 451 (rotating frame 4511, three-way pipe 4512, meniscus 4517, adsorption core plate 4513, and conveyor belt). The purpose of the side wheel assembly 4514 to rotate 180 degrees synchronously is to seal the inner conveying port 441 in the container 44 corresponding to the feeding conveyor line 5 after rotating 180 degrees. The vacuum module 452 and the three-way pipe 4512 (close the solenoid valve connected to the adsorption core plate 4513) are used to extract the air in the container 44 to prevent air from entering the vacuum channel 2 and causing contamination. The inner conveying port 441 can be opened after rotating 180 degrees in the container 44 corresponding to the vacuum channel 2, which is convenient for the subsequent conveying of glass substrates to the coating conveyor line 6. S400: The drive module 43 controls the rotary pre-vacuum conveying system 4 to rotate by a preset angle to align the inner conveying port 441 with the feeding conveying line 5 in the vacuum channel 2. According to the method in step S300, the adjustment module 47 controls the rotating frame 4511, the three-way pipe 4512, the meniscus 4517, the adsorption core plate 4513 and the conveying side wheel group 4514 to rotate 180 degrees in the opposite direction. The vacuum module 452 and the three-way pipe 4512 control the adsorption core plate 4513 to release the adsorption of the glass substrate. The conveying side wheel group 4514 transports the glass substrate from the adsorption core plate 4513 to the feeding conveying line 5. S500 and feeding conveyor 5 drive the glass substrate to move at a constant speed in vacuum coating chamber 1, and form a thin film on the surface of the glass substrate by using the offline magnetron sputtering principle. S600, using the methods of steps S100 to S400, the coated glass product is conveyed from the feeding conveyor line 5 to the unloading conveyor line 7.
[0029] In summary, the bottom shell 41 and the top cover 42 in this application slide in contact with the inner wall of the vacuum transition chamber 3 to ensure the sealing of the glass substrate during the conveying process. The several pre-vacuum conveying modules 45 and the container 44 symmetrically distributed around the circular vacuum transition chamber 3 integrate the functions of glass conveying, transition chamber sealing and pre-vacuuming, realizing continuous automated conveying and pre-vacuuming of the glass substrate, improving the production efficiency of coated heat-insulating and UV-resistant glass, and solving the problems of cumbersome operation, insufficient automation and low efficiency of the conveyor used in the production of traditional coated heat-insulating and UV-resistant glass.
[0030] While several embodiments and examples of the present invention have been described for those skilled in the art, these embodiments and examples are provided as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention.
[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A conveyor for auxiliary production of coated heat-insulating and UV-resistant glass, comprising a vacuum coating chamber (1), a vacuum channel (2), a vacuum transition chamber (3), a feeding conveyor line (5), a coating conveyor line (6), and a discharging conveyor line (7), wherein two sets of the vacuum transition chambers (3) are symmetrically arranged on both sides of the vacuum channel (2), and the coating conveyor line (6) is arranged inside the vacuum channel (2), characterized in that, Also includes: External delivery ports (31) are symmetrically arranged on both sides of the vacuum transition chamber (3); A rotary pre-vacuum conveying system (4) is installed in the vacuum transition chamber (3). The rotary pre-vacuum conveying system (4) includes a bottom shell (41), a top cover (42), a drive module (43), a container (44), a pre-vacuum conveying module (45), and an adjustment module (47). The pre-vacuum conveying module (45) is installed in the container (44). The container (44) is fixedly installed between the bottom shell (41) and the top cover (42). The bottom shell (41) and the top cover (42) are fixedly connected. The drive module (43) is drivenly connected to the top cover (42). An inner conveying port (441) is provided at one end of the container (44), and the outer conveying port (31) can be aligned with the inner conveying port (441); The pre-vacuum conveying module (45) includes a conveying module (451) and a vacuum module (452). The conveying module (451) includes a rotating frame (4511), a three-way pipe (4512), a meniscus (4517), an adsorption core plate (4513), and a conveying side wheel assembly (4514). The three-way pipe (4512), the adsorption core plate (4513), and the conveying side wheel assembly (4514) are all integrated on the rotating frame (4511). The vacuum module (452) is connected to one end of the three-way pipe (4512), and the other two ends of the three-way pipe (4512) are connected to the adsorption core plate (4513) and the container (44), respectively. The rotating frame (4511) and the meniscus (4517) are both in sliding contact with the inner wall of the container (44); The adjustment module (47) is used to control the rotating frame (4511) to rotate 180 degrees.
2. The conveyor for auxiliary production of coated heat-insulating and UV-resistant glass according to claim 1, characterized in that, A limiting frame (442) is fixedly provided at one end of the container (444) away from the inner conveying port (441). A slide rail (443) is provided below the limiting frame (442), and a movable part (444) is slidably provided in the slide rail (443).
3. A conveyor for auxiliary production of coated heat-insulating and UV-resistant glass according to claim 2, characterized in that, The conveying module (451) further includes a transmission sleeve (4515) and a spiral guide rail (4516). The surface of the transmission sleeve (4515) is provided with the spiral guide rail (4516). The upper end of the movable part (444) is slidably disposed in the spiral guide rail (4516). The transmission sleeve (4515) is fixedly sleeved on one end of the three-way pipe (4512).
4. A conveyor for auxiliary production of coated heat-insulating and UV-resistant glass according to claim 3, characterized in that, It also includes a guide rail module (46) fixedly connected to the bottom of the vacuum transition chamber (3). The bottom shell (41) is rotatably connected to the guide rail module (46). The surface of the guide rail module (46) is provided with an arc-shaped guide rail one (461), an arc-shaped guide rail two (462) and a radial guide rail (463). The radial guide rail (463) passes through the arc-shaped guide rail one (461) and the arc-shaped guide rail two (462). The lower end of the movable part (444) can be slidably disposed in the arc-shaped guide rail one (461) and the arc-shaped guide rail two (462).
5. A conveyor for auxiliary production of coated heat-insulating and UV-resistant glass according to claim 4, characterized in that, The adjustment module (47) includes a telescopic cylinder (471), a slide rod (472), and an i-shaped groove (473). The fixed end of the telescopic cylinder (471) is fixedly connected to the guide rail module (46), and the slide rod (472) is fixedly connected to the movable end of the telescopic cylinder (471). Both ends of the telescopic cylinder (471) are provided with i-shaped grooves (473). The slide rod (472) is slidably disposed in the radial guide rail (463), and the movable part (444) can enter the i-shaped groove (473).
6. A conveyor for auxiliary production of coated heat-insulating and UV-resistant glass according to claim 1, characterized in that, A limiting component (4518) is fixedly installed on the side of the rotating frame (4511) away from the inner conveying port (441). The limiting component (4518) is a rubber block, and a pressure sensor is provided on the surface of the rubber block.
7. A conveyor for auxiliary production of coated heat-insulating and UV-resistant glass according to claim 1, characterized in that, The inner delivery port (441) is located above the axis of the tee pipe (4512) or the transmission sleeve (4515).
8. A conveyor for auxiliary production of coated heat-insulating and UV-resistant glass according to claim 1, characterized in that, The three sections of the tee pipe (4512) are all equipped with solenoid valves.
9. A conveyor for auxiliary production of coated heat-insulating and UV-resistant glass according to claim 5, characterized in that, The movable component (444) includes a movable pin and a slider. The lower end of the movable pin is fixedly connected to the slider, and the movable pin is slidably disposed within the spiral guide rail (4516).
10. A conveying method for auxiliary production of coated heat-insulating and UV-resistant glass, applied to the conveyor for auxiliary production of coated heat-insulating and UV-resistant glass as described in any one of claims 1-9, characterized in that, include: S100. The drive module (43) controls the rotary pre-vacuum conveying system (4) to rotate at a preset angle to align the inner conveying port (441) with the outer conveying port (31). The feeding conveying line (5) sends the cleaned and dried glass substrate into the container (44) through the outer conveying port (31) and the inner conveying port (441). S200. The glass substrate is transported from the side of the glass substrate to the surface of the adsorption core plate (4513) using the conveying side wheel group (4514). The adsorption core plate (4513) is evacuated using the vacuum module (452) and the three-way pipe (4512) to adsorb and fix the glass substrate to the surface of the adsorption core plate (4513). S300, using the adjustment module (47) to control the rotating frame (4511), the three-way pipe (4512), the meniscus (4517), the adsorption core plate (4513) and the conveying side wheel group (4514) to rotate 180 degrees synchronously. The meniscus (4517) can seal the inner conveying port (441). The vacuum module (452) and the three-way pipe (4512) are used to extract the air in the container (44) to prevent air from entering the vacuum channel (2). S400. The drive module (43) controls the rotary pre-vacuum conveying system (4) to rotate by a preset angle to align the inner conveying port (441) with the feeding conveying line (5) in the vacuum channel (2). The adjustment module (47) controls the rotating frame (4511), the three-way pipe (4512), the meniscus (4517), the adsorption core plate (4513), and the conveying side wheel group (4514) to rotate 180 degrees in the opposite direction. The vacuum module (452) and the three-way pipe (4512) control the adsorption core plate (4513) to release the adsorption of the glass substrate. The conveying side wheel group (4514) transports the glass substrate from the adsorption core plate (4513) to the feeding conveying line (5). S500, the feeding conveyor line (5) moves at a constant speed in the vacuum coating chamber (1) to form a thin film on the surface of the glass substrate using the offline magnetron sputtering principle; S600. Using the methods of steps S100 to S400, the coated glass product is conveyed from the feeding conveyor line (5) to the unloading conveyor line (7).