Vacuum glass laminating system and method capable of adapting to multi-specification glass
By designing a vacuum glass lamination system that can adapt to various glass specifications, and utilizing mechanical positioning and sensor feedback for precise positioning, the problems of coating surface scratches, slow lamination cycle, complex equipment, and low automation in the vacuum glass lamination process have been solved, achieving high-precision lamination and improved yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA TRIUMPH INT ENG CO LTD
- Filing Date
- 2026-01-22
- Publication Date
- 2026-04-10
AI Technical Summary
Vacuum glass lamination process has several drawbacks, including the risk of scratching the coated surface, slow lamination cycle, complex equipment structure, high equipment investment cost, low and unstable lamination accuracy, limited product size and specifications, and low degree of production automation.
A vacuum glass lamination system adaptable to various glass specifications was designed, including a loading machine, a steering conveyor, a lamination conveyor, a clear glass conveyor line, and a Low-E glass conveyor line. The system accurately positions the glass through mechanical positioning and sensor feedback, and uses a transfer robot to achieve high-precision lamination of Low-E glass and clear glass.
It improves the lamination accuracy and yield of vacuum glass, reduces equipment investment costs, adapts to various product specifications, and enhances the level of production automation.
Smart Images

Figure CN121823985A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of vacuum glass production technology, and in particular to a vacuum glass lamination system and method that can adapt to various glass specifications. Background Technology
[0002] Vacuum glass is a glass product consisting of two or more sheets of flat glass separated by a support, sealed around the perimeter, and forming a vacuum layer between adjacent sheets. The manufacturing process of vacuum glass includes various steps such as sheet loading, cleaning, powder coating, drying, spot application, sheet assembly, stacking, sealing, vacuuming, sealing the evacuation port, testing, and sheet removal. Due to its excellent thermal insulation and soundproofing properties, vacuum glass is widely used in construction, home appliances, automobiles, and many other fields. Compared to ordinary glass, laminated glass, and insulated glass, vacuum glass boasts superior thermal insulation, anti-condensation and anti-frost properties, sound insulation, and wind pressure resistance, while also offering significant energy-saving and environmentally friendly benefits, making it a new generation of energy-efficient glass.
[0003] Currently, the market is conducting extensive research on edge sealing materials, support materials, and sealing performance of vacuum glass, and vacuum glass manufacturing has reached a certain scale. However, the following problems exist in the lamination process of vacuum glass: 1. During the lamination process, the coated surface of the Low-E glass faces downwards, posing a risk of scratching the coated surface and resulting in low yield of vacuum glass; 2. Slow lamination cycle time; 3. Complex equipment structure and high equipment investment cost of the lamination system; 4. Low and unstable lamination accuracy, unable to accurately ensure precise alignment between clear glass and Low-E glass, ultimately leading to low yield of vacuum glass; 5. Limited product size and specifications; 6. Low degree of production automation. Summary of the Invention
[0004] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a vacuum glass lamination system that can adapt to multiple specifications of glass, is applicable to various product sizes, and has high lamination accuracy.
[0005] To achieve the above objectives, the present invention provides a vacuum glass lamination system adaptable to multiple glass specifications. The vacuum glass lamination system includes a loading machine for providing clear glass and Low-E glass, a deflecting conveyor connected to the loading machine, a lamination conveyor, and clear glass conveying lines and Low-E glass conveying lines connected between the deflecting conveyor and the lamination conveyor.
[0006] The steering and conveying device includes a first conveying unit that conveys the white glass toward the white glass conveying line along the length direction of the white glass, a second conveying unit that conveys the Low-E glass toward the Low-E glass conveying line along the width direction of the Low-E glass, a first side alignment unit, and a first end alignment unit. The first conveying unit and the second conveying unit are arranged alternately, and at least one of them is liftable. The first side alignment unit includes several first side alignment wheels that are installed at the conveying head end of the second conveying unit. The first end alignment unit includes a first sensor installed at the conveying head end of the first conveying unit.
[0007] The Low-E glass conveying line is equipped with Low-E glass conveying equipment and a transfer robot. The Low-E glass conveying equipment includes a third conveying unit aligned with the conveying direction of the second conveying unit, a second side alignment unit, and a second end alignment unit. The second side alignment unit includes several second side alignment wheels installed at the conveying end of the third conveying unit. The second end alignment unit includes a readable stroke cylinder installed along the length of the Low-E glass on the side of the third conveying unit, and a stop wheel installed at the piston rod end of the readable stroke cylinder. The transfer robot is located between the Low-E glass conveying equipment and the lamination conveying equipment, and the output end of the transfer robot is a suction cup.
[0008] The assembly conveying device includes a fourth conveying unit opposite to the conveying direction of the first conveying unit, a fifth conveying unit consistent with the conveying direction of the third conveying unit, a third side alignment unit, and a third end alignment unit. At least one of the fourth and fifth conveying units is liftable. The third side alignment unit includes several flexible side blocks installed along the conveying direction of the fifth conveying unit on the side of the fifth conveying unit. The third end alignment unit includes several flexible end blocks installed at the conveying end of the fourth conveying unit.
[0009] Furthermore, the first conveying unit includes several conveying rollers spaced apart along the length of the clear glass and the Low-E glass, and the second conveying unit includes several conveying belts spaced apart along the length of the clear glass and the Low-E glass. The several conveying rollers and several conveying belts are arranged at intervals, and the second conveying unit is liftable.
[0010] The closer to the conveying head of the first conveying unit, the denser the arrangement of the several conveyor belts.
[0011] Furthermore, the white glass conveying line is equipped with a powder coating machine, a dryer, and a dotting machine connected in sequence. The powder coating machine is connected to a turning conveyor, and the dotting machine is connected to a sheet assembly conveyor.
[0012] Furthermore, the second side-aligning wheel is a conical wheel, and the outer diameter of the second side-aligning wheel gradually decreases from bottom to top;
[0013] The first side alignment wheel, the second side alignment wheel, and the stop wheel are all rubber wheels, and the side flexible stop block and the end flexible stop block are all rubber stops.
[0014] Furthermore, the Low-E glass conveying line is equipped with a second sensor at the conveying head of the third conveying unit.
[0015] Furthermore, the Low-E glass conveying line is also equipped with a waiting-to-be-conveyed glass conveying device, which is located between the turning conveying device and the Low-E glass conveying device;
[0016] The wafer conveying device includes a sixth conveying unit that is in the same conveying direction as the second conveying unit, and a third sensor, which is installed at the conveying head of the sixth conveying unit.
[0017] Furthermore, the fourth conveying unit includes several conveying rollers spaced apart along the length of the clear glass and the Low-E glass, and the fifth conveying unit includes several conveying belts spaced apart along the length of the clear glass and the Low-E glass. The several conveying rollers and several conveying belts are arranged at intervals, and the fifth conveying unit is liftable.
[0018] The closer to the end of the conveying unit, the denser the arrangement of the several conveyor belts.
[0019] Furthermore, the assembly conveying device also includes a fourth sensor and a fifth sensor, wherein the fourth sensor is located at the conveying head end of the fourth conveying unit and the fifth sensor is located at the conveying head end of the fifth conveying unit.
[0020] The third side alignment unit also includes a first lifting drive cylinder and a first lifting transmission unit installed on the support frame of the laminating conveyor. The first lifting drive cylinder is connected to the side flexible stop block through the first lifting transmission unit to drive the side flexible stop block to rise and fall.
[0021] The third end alignment unit also includes a second lifting drive cylinder and a second lifting transmission unit installed on the support frame of the laminating conveyor. The second lifting drive cylinder is connected to the end flexible stop block through the second lifting transmission unit, driving the end flexible stop block to rise and fall.
[0022] Furthermore, the vacuum glass lamination system also includes a lamination detection device connected to the lamination conveying device. The lamination detection device includes a seventh conveying unit and an image acquisition unit installed directly above the seventh conveying unit. The conveying direction of the seventh conveying unit is consistent with the conveying direction of the fourth conveying unit.
[0023] This application also provides a vacuum glass lamination method adaptable to various glass sizes, using the vacuum glass lamination system described above, the vacuum glass lamination method comprising the following steps:
[0024] S1. Set up a control system so that each drive source and sensor in the film loading machine, steering conveyor, film assembly conveyor, white glass conveyor line and Low-E glass conveyor line can communicate with the control system.
[0025] S2. The loading machine transports the white glass and Low-E glass in a set order toward the turning conveyor, with the coated side of the Low-E glass facing upwards.
[0026] S3, at the turning conveyor equipment:
[0027] First, the first conveying unit is controlled to be higher than the second conveying unit, and the clear glass or Low-E glass is carried by the first conveying unit; when the end of the clear glass or Low-E glass passes the first sensor, the control system controls the first conveying unit to convey the clear glass or Low-E glass a set distance and then stop.
[0028] Secondly, the second conveying unit is controlled to be higher than the first conveying unit. The white glass or Low-E glass is transferred to the second conveying unit. The second conveying unit conveys the white glass or Low-E glass toward the first side alignment wheel until the white glass or Low-E glass comes into contact with the first side alignment wheel.
[0029] Subsequently, when the glass on the second conveying unit is Low-E glass, the second conveying unit conveys the Low-E glass toward the Low-E glass conveying line; when the glass on the second conveying unit is clear glass, the first conveying unit is controlled to be higher than the second conveying unit, the clear glass is transferred to the first conveying unit, and the first conveying unit conveys the clear glass toward the clear glass conveying line.
[0030] S4. The white glass conveyor line transports the white glass to the laminating conveyor. At the laminating conveyor:
[0031] First, the fourth conveying unit is positioned higher than the fifth conveying unit, and the white glass is carried by the fourth conveying unit.
[0032] Secondly, the fifth conveying unit is controlled to be higher than the fourth conveying unit. The white glass is transferred to the fifth conveying unit, and the fifth conveying unit conveys the white glass toward the side flexible block until the white glass abuts against the side flexible block.
[0033] Then, the fourth conveying unit is controlled to be higher than the fifth conveying unit, and the white glass is transferred to the fourth conveying unit. The fourth conveying unit conveys the white glass toward the end flexible stop until the white glass abuts against the end flexible stop.
[0034] At this point, the actual position of the white glass on the laminating conveyor is determined by the side flexible stops and the end flexible stops;
[0035] S5, the Low-E glass conveyor line transports Low-E glass to the Low-E glass conveying equipment. At the Low-E glass conveying equipment:
[0036] First, the Low-E glass is conveyed by the third conveying unit, which conveys the Low-E glass toward the second side alignment wheel until the Low-E glass comes into contact with the second side alignment wheel.
[0037] Secondly, the suction cup of the transfer robot moves to the bottom of the Low-E glass and picks up the uncoated side of the Low-E glass;
[0038] Then, the piston rod of the readable stroke cylinder drives the guide wheel to move toward the Low-E glass until the guide wheel collides with the short side of the Low-E glass, and measures the position of the short side of the Low-E glass; the readable stroke cylinder sends the position of the short side of the Low-E glass to the control system, and the control system inputs the position of the short side of the Low-E glass into the transfer robot.
[0039] Next, the robotic arm adjusts the movement trajectory of the suction cup according to the actual positions of the Low-E glass and the clear glass, controls the suction cup to rotate the Low-E glass 180°, and covers the clear glass with the coated side facing down, thus achieving the bonding of the Low-E glass and the clear glass.
[0040] As described above, the vacuum glass lamination system and method adapted to various glass specifications of the present invention have the following beneficial effects:
[0041] This application precisely positions the initial positions of glass of different specifications at the steering conveyor by mechanical positioning of the first side of the steering wheel and feedback from the first sensor. In particular, at the Low-E glass conveyor, the Low-E glass is positioned by mechanical positioning of the second side of the steering wheel and the readable stroke cylinder's mechanical side measurement, thus determining the actual position of the Low-E glass. At the lamination conveyor, the two vertical edges of the clear glass are mechanically positioned by side flexible blocks and end flexible blocks, thus determining the actual position of the clear glass. Finally, the moving robot adjusts the motion trajectory of the suction cup according to the actual positions of the Low-E glass and the clear glass, achieving high-precision lamination of Low-E glass and clear glass. The overall positioning accuracy of Low-E glass and clear glass reaches + / -0.5mm, providing important technical support for high-quality vacuum glass preparation, improving the yield of vacuum glass, and possessing strong market application prospects. Attached Figure Description
[0042] Figure 1 This is a top view of the vacuum glass bonding system of this application.
[0043] Figure 2 for Figure 1 A top view of the central steering conveyor.
[0044] Figure 3 for Figure 2 A schematic diagram of the structure of the first side-aligned unit.
[0045] Figure 4 for Figure 1 A top view of a Low-E glass conveying system.
[0046] Figure 5 for Figure 4 A schematic diagram of the structure of the second side of the unit.
[0047] Figure 6 for Figure 4 A schematic diagram of the structure of the second end alignment unit.
[0048] Figure 7 for Figure 1 A top view of the sheet conveyor.
[0049] Figure 8 for Figure 7 A schematic diagram of the structure of the third side of the unit.
[0050] Figure 9 for Figure 7 A schematic diagram of the structure of the third end alignment unit.
[0051] Figure 10 This is a schematic diagram of the lifting structure of the second and fifth conveying units in this application.
[0052] Figure 11 for Figure 1 A top view of the transfer robot.
[0053] Figure 12 This is a schematic diagram of the transfer robot in this application holding the Low-E glass at the Low-E glass conveying equipment.
[0054] Component labeling: 10. Loading machine; 20. Diverting conveyor; 21. First conveying unit; 22. Second conveying unit; 23. First side alignment wheel; 24. First sensor; 25. First mounting bracket; 30. Low-E glass conveying device; 31. Third conveying unit; 32. Second side alignment wheel; 33. Readable stroke cylinder; 34. Thrust wheel; 35. Second sensor; 36. Second mounting bracket; 37. Third mounting bracket; 40. Transfer robot; 41. Suction cup; 42. Glass suction cup holder; 50. Lamination conveyor; 51. Fourth conveying unit; 52. Fifth conveying unit; 53. Side flexible stop; 54. End flexible stop. Fourth sensor 55, fifth sensor 56, first lifting drive cylinder 57, first lifting transmission unit 58, second lifting drive cylinder 59, second lifting transmission unit 510, fourth mounting bracket 511, fifth mounting bracket 512, conveyor roller 61, conveyor belt 62, powder coating machine 71, dryer 72, dotting machine 73, waiting sheet conveying equipment 80, sixth conveying unit 81, third sensor 82, sheet assembly detection equipment 90, seventh conveying unit 91, cleaning machine 110, sixth mounting bracket 121, third lifting drive cylinder 122, third lifting transmission unit 123, belt conveyor frame 124. Detailed Implementation
[0055] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.
[0056] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings of this specification are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the conditions under which the invention can be implemented and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and objectives of the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.
[0057] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.
[0058] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.
[0059] This application provides a vacuum glass lamination system adaptable to multiple glass sizes, and a vacuum glass lamination method using this system, for laminating clear glass and Low-E glass to form vacuum glass. For a vacuum glass of a certain size, the clear glass and Low-E glass have the same size. Furthermore, for ease of description, in the following embodiments, the length direction of the clear glass and Low-E glass is defined as the left-right direction, the width direction as the front-back direction, the long side of the clear glass and Low-E glass as their respective side edges, and the end containing the short side of the clear glass and Low-E glass as their respective end edges. Based on this, Figure 1 In the view shown, the left and right sides of the paper represent the left and right directions, respectively, while the top and bottom sides represent the front and back directions, respectively.
[0060] like Figure 1 As shown, the vacuum glass lamination system adapted to various glass sizes involved in this invention includes a loading machine 10, a turning conveyor 20, a white glass conveyor line, a Low-E glass conveyor line, and a lamination conveyor 50.
[0061] The film loading machine 10 is located at the film loading station to realize the orderly loading of white glass and Low-E glass.
[0062] like Figure 1 and Figure 2As shown, the turning conveyor 20 is located at the glass turning station. The input end of the turning conveyor 20 is connected to the output end of the loading machine 10. The white glass and Low-E glass loaded by the loading machine 10 are conveyed to the turning conveyor 20. The turning conveyor 20 includes a first conveying unit 21 that conveys the white glass to the left along the length direction of the white glass towards the white glass conveying line, a second conveying unit 22 that conveys the Low-E glass forward along the width direction of the Low-E glass towards the Low-E glass conveying line, a first side alignment unit, and a first end alignment unit. The first conveying unit 21 and the second conveying unit 22 are staggered, and at least one of them is liftable. The conveying directions of the first conveying unit 21 and the second conveying unit 22 are perpendicular. The first side alignment unit includes several first side alignment wheels 23 installed at the conveying head (i.e., rear end) of the second conveying unit 22. The first end alignment unit includes a first sensor 24 installed at the conveying head (i.e., right end) of the first conveying unit 21. The first side-aligned wheel 23 and the first sensor 24 are used to determine the initial positions of the clear glass and Low-E glass on the steering conveying device 20, and to perform initial positioning of the clear glass and Low-E glass.
[0063] like Figure 1 As shown, the white glass conveyor line and the Low-E glass conveyor line transport white glass and Low-E glass in different directions respectively. Both the white glass conveyor line and the Low-E glass conveyor line are connected between the turning conveyor 20 and the assembly conveyor 50. The white glass conveyor line transports white glass from the turning conveyor 20 to the assembly conveyor 50, and the Low-E glass conveyor line transports Low-E glass from the turning conveyor 20 to the assembly conveyor 50.
[0064] like Figure 1 and Figure 4As shown, the Low-E glass conveying line includes a Low-E glass conveying device 30 located at the Low-E glass alignment station and a transfer robot 40 located at the manual station. The Low-E glass conveying device 30 includes a third conveying unit 31 for forward conveying Low-E glass, a second side alignment unit, and a second end alignment unit. The second side alignment unit includes several second side alignment wheels 32 installed at the conveying end (i.e., the front end) of the third conveying unit 31. The second end alignment unit includes a readable stroke cylinder 33 installed on the right side of the third conveying unit 31 along the length direction of the Low-E glass, and a stop wheel 34 installed on the left end of the piston rod of the readable stroke cylinder 33. The transfer robot 40 is preferably a six-axis robot, positioned between the Low-E glass conveying device 30 and the laminating conveying device 50. The output end of the transfer robot 40 is a movable suction cup 41, which can rotate and reciprocate between the Low-E glass conveying device 30 and the laminating conveying device 50. A second side alignment wheel 32 is used to determine the position of the long side of the Low-E glass on the Low-E glass conveying device 30, while a readable stroke cylinder 33 and a stop wheel 34 are used to measure the actual position of the short side of the Low-E glass. The transfer robot 40 flips the Low-E glass and laminates it with clear glass on the laminating conveying device 50.
[0065] like Figure 1 and Figure 7 As shown, the glass assembly conveyor 50 is located at the glass assembly station. The glass assembly conveyor 50 includes a fourth conveying unit 51 for conveying white glass to the left, a fifth conveying unit 52 for conveying white glass forward, a third side alignment unit, and a third end alignment unit. At least one of the fourth conveying unit 51 and the fifth conveying unit 52 is liftable. The third side alignment unit includes several flexible side blocks 53 installed along the conveying direction of the fifth conveying unit 52 on the rear side. The third end alignment unit includes several flexible end blocks 54 installed at the conveying end (i.e., the right end) of the fourth conveying unit 51. The flexible side blocks 53 and the flexible end blocks 54 mechanically position the white glass on the glass assembly conveyor 50, determining the actual position of the white glass.
[0066] This application also provides a vacuum glass lamination method that can adapt to multiple glass specifications. Using the above-mentioned vacuum glass lamination system, the vacuum glass lamination method includes the following steps.
[0067] S1. Set up a control system so that each drive source and sensor in the film loading machine 10, the steering conveyor 20, the film assembly conveyor 50, the white glass conveyor line, and the Low-E glass conveyor line are connected to the control system.
[0068] S2. The loading machine 10 transports the white glass and Low-E glass to the turning conveyor 20 in a set order, loading the glass in the order of white glass, Low-E glass, white glass, Low-E glass... with the coated side of the Low-E glass facing upwards. The white glass and Low-E glass are transported to the left to the turning conveyor 20.
[0069] S3. At the turning conveyor 20: First, in the initial state, the first conveyor unit 21 is controlled to be higher than the second conveyor unit 22, so the white glass or Low-E glass conveyed from the previous station is carried by the first conveyor unit 21; when the right edge of the white glass or Low-E glass crosses the first sensor 24 to the left, the control system controls the first conveyor unit 21 to convey the white glass or Low-E glass a set distance and then stop, and issues a stop command, thereby determining the position of the right short side of the white glass or Low-E glass, or in other words, regardless of the specification of the white glass or Low-E glass, the position of its right short side is in the same position. Secondly, by controlling the second conveying unit 22 to be higher than the first conveying unit 21, the clear glass or Low-E glass carried by the first conveying unit 21 is transferred to the second conveying unit 22. The second conveying unit 22 then conveys the clear glass or Low-E glass backward toward the first side alignment wheel 23 until the rear edge of the clear glass or Low-E glass collides with and abuts against the first side alignment wheel 23, thereby determining the position of the long rear edge of the clear glass or Low-E glass. In this way, for glass of different specifications, the rear edge and right edge can be ensured to be in the same position on the turning conveyor 20, achieving unified positioning of ultra-large and ultra-small glass, providing a guarantee for subsequent lamination. Subsequently, when the glass on the second conveying unit 22 is Low-E glass, the second conveying unit 22 directly conveys the Low-E glass forward toward the Low-E glass conveying line; when the glass on the second conveying unit 22 is clear glass, the first conveying unit 21 is controlled to be higher than the second conveying unit 22, and the clear glass carried by the second conveying unit 22 is transferred to the first conveying unit 21, and the first conveying unit 21 conveys the clear glass to the left toward the clear glass conveying line.
[0070] S4. The white glass conveyor line transports the white glass to the laminating conveyor 50. At the laminating conveyor 50: First, in the initial state, the fourth conveyor unit 51 is controlled to be higher than the fifth conveyor unit 52, so the white glass is carried by the fourth conveyor unit 51. Second, the fifth conveyor unit 52 is controlled to be higher than the fourth conveyor unit 51, and the white glass is transferred to the fifth conveyor unit 52. The fifth conveyor unit 52 transports the white glass backward toward the side flexible stop 53 until the rear edge of the white glass collides with the side flexible stop 53 and abuts against it, achieving mechanical positioning of the rear long side of the white glass. Afterward, the fourth conveyor unit 51 is controlled to be higher than the fifth conveyor unit 52, and the white glass is transferred to the fourth conveyor unit 51. The fourth conveyor unit 51 transports the white glass to the right toward the end flexible stop 54 until the right edge of the white glass collides with the end flexible stop 54 and abuts against it, achieving mechanical positioning of the right short side of the white glass. Thus, the actual position of the white glass on the laminating conveyor 50 is determined by the side flexible stop 53 and the end flexible stop 54. The side flexible stop 53 and the end flexible stop 54 mechanically position the two vertical edges of the white glass with a positioning accuracy of + / -0.2mm, achieving precise positioning of the glass and ensuring high-precision lamination.
[0071] S5. During the process of conveying white glass on the white glass conveyor line, the Low-E glass conveyor line simultaneously conveys Low-E glass to the Low-E glass conveying device 30. At the Low-E glass conveying device 30: First, the Low-E glass is conveyed forward by the third conveying unit 31. The third conveying unit 31 conveys the Low-E glass forward toward the second side alignment wheel 32 until the front edge of the Low-E glass collides with and abuts against the second side alignment wheel 32, mechanically positioning the front long side of the Low-E glass to determine its position with a positioning accuracy of + / -0.2mm. Second, the suction cup 41 of the transfer robot 40 moves to below the Low-E glass and picks up the non-coated surface of the Low-E glass. Next, the piston rod of the readable stroke cylinder 33 drives the guide wheel 34 to move to the left towards the Low-E glass until the guide wheel 34 collides with the right short side of the Low-E glass, measuring the position of the right short side of the Low-E glass. The readable stroke cylinder 33 sends the position of the short side of the Low-E glass to the control system, and the control system inputs the position of the short side of the Low-E glass into the transfer robot 40. Then, the transfer robot 40 adjusts the movement trajectory of the suction cup 41 according to the actual position of the Low-E glass and the actual position of the clear glass, controls the suction cup 41 to rotate the Low-E glass 180°, and covers the clear glass with the coated side facing down, realizing the bonding of the Low-E glass and the clear glass.
[0072] Therefore, this application precisely positions the initial positions of different specifications of glass at the turning conveyor 20 through mechanical positioning of the first side of the positive wheel 23 and feedback from the first sensor 24; in particular, at the Low-E glass conveyor 30, the Low-E glass is positioned and its actual position is determined through mechanical positioning of the second side of the positive wheel 32 and mechanical side measurement by the readable stroke cylinder 33; at the lamination conveyor 50, the two vertical edges of the white glass are mechanically positioned through the side flexible stop 53 and the end flexible stop 54 to determine the actual position of the white glass; finally, the moving robot 40 adjusts the movement trajectory of the suction cup 41 according to the actual positions of the Low-E glass and the white glass to achieve high-precision lamination of Low-E glass and white glass. The comprehensive positioning accuracy of Low-E glass and white glass is as high as + / -0.5mm, providing important technical support for high-quality vacuum glass preparation, improving the yield of vacuum glass, and having strong market application prospects. In addition, during the transport process, the coated surface of the Low-E glass is always facing upwards and does not come into contact with the turning conveyor 20, the laminating conveyor 50, or any of the conveying units in the Low-E glass transport line. When the suction cup 41 picks up the Low-E glass, it does so in a bottom-up manner, and the suction cup 41 does not come into contact with the coated surface, thereby avoiding scratches on the coated surface.
[0073] The following provides preferred structures for the various devices in a vacuum glass bonding system.
[0074] Cleaning machine 110: such as Figure 1 As shown, the vacuum glass bonding system also includes a cleaning machine 110 located at the cleaning station. The cleaning machine 110 is connected between the loading machine 10 and the turning conveyor 20 to clean the glass surface.
[0075] Steering conveyor equipment 20: such as Figure 1 and Figure 2 As shown, the steering conveyor 20 includes a roller conveyor unit and a belt conveyor unit, both driven by servo motors. Preferably, the roller conveyor unit constitutes a first conveyor unit 21 and includes several conveyor rollers 61 spaced laterally along the length of the clear glass and Low-E glass. The conveyor rollers 61 extend straight back and forth and convey glass to the left. The belt conveyor unit constitutes a second conveyor unit 22 and includes several conveyor belts 62 spaced laterally along the length of the clear glass and Low-E glass. The conveyor belts 62 rotate in the front-back direction and convey glass in the front-back direction. The several conveyor rollers 61 and several conveyor belts 62 are spaced apart in the left-right direction. The second conveyor unit 22 is liftable, realizing the transfer of glass between the first conveyor unit 21 and the second conveyor unit 22. The first sensor 24 is preferably a photoelectric switch.
[0076] Furthermore, such as Figure 2As shown, at the turning conveyor 20, the several conveyor belts 62 in the belt conveyor unit are not evenly distributed. Instead, near the conveying head end (i.e., the right end) of the first conveyor unit 21, the several conveyor belts 62 are densely arranged, meaning the closer to the conveying head end of the first conveyor unit 21, the denser the arrangement of the several conveyor belts 62. The conveying head end of the first conveyor unit 21 is the conveying position for small-sized glass, thereby avoiding positional deviation of small-sized glass during the conveying process.
[0077] Preferably, such as Figure 3 As shown, the first side alignment unit also includes a first mounting bracket 25, which is mounted on the roller frame of the roller conveyor unit in the steering conveyor device 20. The first side alignment wheel 23 is a rubber wheel and is mounted on the upper end of the first mounting bracket 25. The glass cleaned by the cleaning machine 110 may have a positional shift. After being conveyed to the steering conveyor device 20, it is aligned backward by the belt conveyor unit to ensure that the forward edges on both sides of the glass are parallel to the conveyor belt 62. This achieves initial positioning and ensures that the glass will not fall during the transmission of small-sized glass.
[0078] White glass conveyor line: such as Figure 1 As shown, the white glass conveyor line is equipped with a powder coating machine 71, a dryer 72 and a dotting machine 73 connected in sequence. The powder coating machine 71 is connected to the turning conveyor 20, and the dotting machine 73 is connected to the assembly conveyor 50. The white glass is successively powder coated, dried and dotted, and finally the glass is conveyed to the right to the assembly conveyor 50.
[0079] Low-E glass delivery line: such as Figure 1As shown, the Low-E glass conveying line also includes a glass-waiting conveying device 80 located at the glass-waiting station. The glass-waiting conveying device 80 is positioned between the steering conveying device 20 and the Low-E glass conveying device 30 in the front-to-back direction. The glass-waiting conveying device 80 includes a sixth conveying unit 81 with the same conveying direction as the second conveying unit 22, and a third sensor 82. The sixth conveying unit 81 conveys Low-E glass forward. The sixth conveying unit 81 is preferably a belt conveyor unit, driven by a servo motor. The third sensor 82 is installed at the beginning (i.e., the end) of the sixth conveying unit 81. The third sensor 82 is preferably a photoelectric switch used to detect whether the end of the Low-E glass has detached from the third sensor 82, thereby determining whether all the Low-E glass has been conveyed to the sixth conveying unit 81. The Low-E glass conveyed forward by the second conveying unit 22 of the steering conveying device 20 is first transferred to the sixth conveying unit 81. Before the transfer robot 40 is in place, the Low-E glass is on the waiting sheet conveying device 80 and is in the glass waiting station. After the transfer robot 40 is in place, that is, after the suction cup 41 moves to the bottom of the Low-E glass conveying device 30, the sixth conveying unit 81 then conveys the Low-E glass forward to the Low-E glass conveying device 30.
[0080] Low-E glass conveying equipment 30: such as Figure 4 As shown, the third conveying unit 31 is preferably a belt conveyor unit, and its driving source is a servo motor. A second sensor 35 is provided at the conveying head (i.e., rear end) of the third conveying unit 31 on the Low-E glass conveying line. The second sensor 35 is preferably a photoelectric switch. When the rear edge of the Low-E glass passes the second sensor 35, the Low-E glass is completely detached from the second sensor 35. At this time, the control system controls the third conveying unit 31 to decelerate, slowly conveying the Low-E glass forward toward the second side alignment wheel 32 for deceleration and positioning.
[0081] Furthermore, such as Figure 5 As shown, the second side alignment unit also includes a second mounting bracket 36, which is mounted at the front end of the third conveying unit 31. The second side alignment wheel 32 is a rubber wheel and is mounted on the upper end of the second mounting bracket 36. Preferably, the second side alignment wheel 32 is a conical wheel, and its outer diameter gradually decreases from bottom to top. When the transfer robot 40 picks up the Low-E glass from below the third conveying unit 31, the suction cup 41 picks up the Low-E glass and lifts it upwards. Since the outer diameter of the second side alignment wheel 32 decreases towards the top, this avoids the front edge of the Low-E glass from touching the second side alignment wheel 32 during the pick-up process. This prevents the Low-E glass from shifting in position due to contact with the second side alignment wheel 32 when it is picked up by the transfer robot 40, thus ensuring the accuracy of the glass assembly.
[0082] Furthermore, such as Figure 6 As shown, the second end alignment unit also includes a third mounting bracket 37, which is installed on the left side of the third conveying unit 31. The cylinder body of the readable stroke cylinder 33 is fixed to the upper end of the third mounting bracket 37. The guide wheel 34 is a rubber wheel. When the transfer robot 40 picks up the Low-E glass that has been aligned along its long side, the readable stroke cylinder 33 drives the guide wheel 34 to strike the right short side of the Low-E glass to the left. Since the Low-E glass is picked up by the suction cup 41 and its position is fixed, the readable stroke cylinder 33 completes the measurement of the position of the right short side of the Low-E glass and transmits the position of the right short side to the transfer robot 40 through the control system. The subsequent transfer robot 40 adjusts the movement trajectory to achieve precise lamination.
[0083] Assembly conveyor equipment 50: such as Figure 7 As shown, the glass assembly and conveying equipment 50 includes a roller conveyor unit and a belt conveyor unit, both driven by servo motors. Preferably, the roller conveyor unit constitutes the fourth conveying unit 51 and includes several conveyor rollers 61 spaced laterally along the length of the clear glass and Low-E glass. The conveyor rollers 61 extend straight back and forth and convey the glass to the right. The belt conveyor unit constitutes the fifth conveying unit 52 and includes several conveyor belts 62 spaced laterally along the length of the clear glass and Low-E glass. The conveyor belts 62 rotate in the front-back direction and convey the glass in the front-back direction. The several conveyor rollers 61 and several conveyor belts 62 are arranged spaced laterally in the left-right direction. The fifth conveying unit 52 can be raised and lowered to realize the transfer of glass between the fourth conveying unit 51 and the fifth conveying unit 52.
[0084] Preferably, such as Figure 7 As shown, at the assembly conveyor 50, the several conveyor belts 62 in the belt conveyor unit are not evenly distributed. Instead, near the end of the fourth conveyor unit 51 (i.e., the right end), the several conveyor belts 62 are densified. That is, the closer to the end of the fourth conveyor unit 51, the denser the several conveyor belts 62 are arranged, in order to accommodate different sizes of glass.
[0085] Furthermore, such as Figure 7As shown, the sheet-assembly conveying device 50 also includes a fourth sensor 55 and a fifth sensor 56. The fourth sensor 55 is located at the conveying head end (i.e., the left end) of the fourth conveying unit 51, and the fifth sensor 56 is located at the conveying head end (i.e., the rear end) of the fifth conveying unit 52. Preferably, both the fourth sensor 55 and the fifth sensor 56 are photoelectric switches. When the fourth conveying unit 51 conveys white glass to the right, after the left edge of the white glass passes the fourth sensor 55 to the right, the control system controls the fourth conveying unit 51 to begin slowing down for positioning. When the fifth conveying unit 52 conveys white glass backward, when the rear edge of the white glass begins to contact the fifth sensor 56 backward, the control system controls the fifth conveying unit 52 to begin slowing down for positioning.
[0086] Preferably, the side flexible stop 53 can move up and down, rising above the roller surface of the conveyor roller 61 when in use and falling below the roller surface of the conveyor roller 61 when not in use. The specific structure is as follows: Figure 8 As shown, the third side alignment unit also includes a fourth mounting bracket 511 fixed to the support frame of the laminating conveyor 50, a first lifting drive cylinder 57 mounted on the fourth mounting bracket 511, and a first lifting transmission unit 58. The first lifting drive cylinder 57 is connected to the side flexible stop block 53 through the first lifting transmission unit 58, driving the side flexible stop block 53 to rise and fall. The side flexible stop block 53 is a rubber stop block.
[0087] Preferably, the end flexible stop 54 can move up and down, rising above the conveyor belt 62 when in use and falling below the conveyor belt 62 when not in use. The specific structure is as follows: Figure 9 As shown, the third end alignment unit also includes a fifth mounting bracket 512 fixed to the support frame of the laminating conveyor 50, a second lifting drive cylinder 59 mounted on the fifth mounting bracket 512, and a second lifting transmission unit 510. The second lifting drive cylinder 59 is connected to the end flexible stop 54 via the second lifting transmission unit 510, driving the end flexible stop 54 to rise and fall. The end flexible stop 54 is a rubber stop.
[0088] After the clear glass enters the roller conveyor unit of the laminating conveyor 50, the belt conveyor unit slowly lifts the clear glass. The servo motor of the belt conveyor unit rotates slowly, driving the clear glass backward until it slowly impacts the side flexible stop 53, achieving side positioning of the clear glass. Then, the belt conveyor unit descends, and the clear glass falls onto the roller conveyor unit. The servo motor of the roller conveyor unit rotates slowly, driving the clear glass to the right until it slowly impacts the end flexible stop 54, achieving end positioning of the clear glass. After the rear edge and right edge of the clear glass are mechanically positioned, precise positioning of ordinary clear glass is achieved.
[0089] Furthermore, at both the steering conveyor 20 and the assembly conveyor 50, the respective belt conveyor units can be vertically lifted and lowered. The preferred vertically lifting and lowering structure is as follows: Figure 10 As shown, the steering conveyor 20 and the assembly conveyor 50 are each equipped with a sixth mounting bracket 121, a third lifting drive cylinder 122, a third lifting transmission unit 123, and a vertically lifting belt conveyor frame 124 at their respective belt conveyor units. The sixth mounting bracket 121 is fixedly installed, and the third lifting drive cylinder 122 is connected to the belt conveyor frame 124 through the third lifting transmission unit 123. The belt conveyor unit is installed on the belt conveyor frame 124. In addition, a cylinder throttle valve can be provided. By adjusting the cylinder throttle valve, the third lifting drive cylinder 122 can be slowly raised to lift the belt conveyor unit, preventing the support from moving after the white glass is laid out.
[0090] Transfer robot 40: such as Figure 11 and Figure 12 As shown, the transfer robot 40 is placed in a suitable position according to the site layout. A glass suction cup frame 42 is installed at the output end of the transfer robot 40. Several suction cups 41 are installed on the glass suction cup frame 42, and the positions of the suction cups 41 are arranged for small-sized glass. When picking up the glass, the glass suction cup frame 42 first lowers below the glass assembly and conveying device 50. After the suction cups 41 pick up the Low-E glass, the Low-E glass is not lifted immediately. Only after the readable stroke cylinder 33 measures the position of the short side of the Low-E glass does the suction cup 41 lift the Low-E glass.
[0091] like Figure 1 As shown, the vacuum glass lamination system also includes a lamination inspection device 90 located at the inspection station. The input end of the lamination inspection device 90 is connected to the output end of the lamination conveying device 50. The lamination inspection device 90 includes a seventh conveying unit 91 and an image acquisition unit installed directly above the seventh conveying unit 91. The conveying direction of the seventh conveying unit 91 is the same as that of the fourth conveying unit 51, both conveying to the left. The image acquisition unit can be a camera, which acquires images of the laminated white glass and Low-E glass and transmits the images to the control system, which then detects the lamination accuracy of the white glass and Low-E glass.
[0092] In summary, this application can adapt to the lamination of various glass sizes from 400mm×500mm to 2000mm×3000mm, and is suitable for both household appliance glass and architectural glass. The lamination accuracy is as high as + / -0.5mm, and the coated surface of Low-E glass is scratch-free. The entire lamination process is fully automatic, with a short lamination cycle and smooth movements, avoiding damage to supports and edge sealing materials, and ultimately greatly improving the yield.
[0093] The following are two specific application examples of this application.
[0094] Application Example 1: Used for piecing together large sheets of glass, 2000mm × 3000mm (width × length).
[0095] The loading machine 10 picks up sheets of glass, successively loading clear glass and Low-E glass, both with dimensions of 2000mm × 3000mm. After being cleaned by the cleaning machine 110, the clear glass and Low-E glass reach the roller conveyor unit of the turning conveyor 20, where they are positioned by the first sensor 24 and the first side alignment wheel 23. After powder coating, drying, and dot-mapping, the clear glass reaches the roller conveyor unit of the laminating conveyor 50. The fourth sensor 55 controls the clear glass to slow down after entering a preset position on the roller conveyor unit; this position can be adjusted according to actual requirements. The belt conveyor unit of the laminating conveyor 50 slowly and vertically lifts, causing the clear glass to move backward and impact the side flexible stop 53. The belt conveyor unit of the laminating conveyor 50 then slowly and vertically descends, and the roller conveyor unit of the laminating conveyor 50 causes the clear glass to move right and impact the end flexible stop 54, achieving mechanical positioning of the two vertical edges of the clear glass with a positioning accuracy of + / -0.2mm. Meanwhile, the suction cup 41 of the transfer robot 40 is positioned below the third conveying unit 31. After the Low-E glass enters the third conveying unit 31, it is decelerated based on feedback from the second sensor 35. The third conveying unit 31 then moves the Low-E glass forward to impact the second side alignment wheel 32, precisely positioning the long side of the Low-E glass with a positioning accuracy of + / -0.2mm. Next, the suction cup 41 slowly rises to a preset height, suctions air, and clamps the Low-E glass. The stroke cylinder 33 then moves to measure the edge. Finally, the transfer robot 40 adjusts the movement trajectory of the suction cup 41 based on the actual positions of the Low-E glass and the clear glass, achieving precise assembly with a comprehensive positioning accuracy of + / -0.5mm.
[0096] Application Example 2: Used for piecing together small pieces of glass, 450mm × 500mm (width × length).
[0097] The loading machine picks up sheets in 10 passes, successively loading clear glass and Low-E glass. The dimensions of both clear glass and Low-E glass are 450mm × 500mm. The assembly process for small glass sheets is similar to the assembly process for large glass sheets described above, and will not be repeated.
[0098] This application designs the spacing of the conveyor belt 62 and the arrangement of the suction cups 41 according to the glass size required by the customer, which can accommodate glass of different specifications in continuous sizes. This application has high lamination accuracy, and the entire lamination process is highly automated with a fast lamination cycle and wide applicability. Throughout the process, the coated surface of the Low-E glass never comes into contact with the roller surface or the suction cups 41, avoiding differences in glass performance caused by scratches on the coated surface, and has high market applicability.
[0099] In summary, this invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.
[0100] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.
Claims
1. A vacuum glazing system adaptable to multiple glazing formats, characterized by: The vacuum glass assembly system comprises a glass feeding machine (10) for providing white glass and Low-E glass, a turning conveying device (20) connected with the glass feeding machine (10), a glass assembly conveying device (50), and a white glass conveying line and a Low-E glass conveying line both connected between the turning conveying device (20) and the glass assembly conveying device (50); The turning conveying device (20) comprises a first conveying unit (21) for conveying the white glass along the length direction of the white glass towards the white glass conveying line, a second conveying unit (22) for conveying the Low-E glass along the width direction of the Low-E glass towards the Low-E glass conveying line, a first side edge alignment unit comprising a plurality of first side edge alignment wheels (23) all installed at the conveying head end of the second conveying unit (22), and a first end alignment unit comprising a first sensor (24) installed at the conveying head end of the first conveying unit (21), wherein the first conveying unit (21) and the second conveying unit (22) are arranged alternately and at least one of them is liftable; The Low-E glass conveying line is provided with a Low-E glass conveying device (30) and a moving mechanical arm (40); the Low-E glass conveying device (30) comprises a third conveying unit (31) consistent with the conveying direction of the second conveying unit (22), a second side edge alignment unit comprising a plurality of second side edge alignment wheels (32) all installed at the conveying tail end of the third conveying unit (31), and a second end alignment unit comprising a readable stroke air cylinder (33) installed at the side of the third conveying unit (31) along the length direction of the Low-E glass, and a stop wheel (34) installed at the end of the piston rod of the readable stroke air cylinder (33); the moving mechanical arm (40) is arranged between the Low-E glass conveying device (30) and the glass assembly conveying device (50), and the output end of the moving mechanical arm (40) is a suction cup (41); The glass assembly conveying device (50) comprises a fourth conveying unit (51) opposite to the conveying direction of the first conveying unit (21), a fifth conveying unit (52) consistent with the conveying direction of the third conveying unit (31), a third side edge alignment unit comprising a plurality of side edge flexible stop blocks (53) all installed at the side of the fifth conveying unit (52) along the conveying direction of the fifth conveying unit (52), and a third end alignment unit comprising a plurality of end flexible stop blocks (54) all installed at the conveying tail end of the fourth conveying unit (51), wherein at least one of the fourth conveying unit (51) and the fifth conveying unit (52) is liftable.
2. The vacuum glazing system of claim 1, wherein: The first conveying unit (21) comprises a plurality of conveying rollers (61) arranged at intervals along the length direction of the white glass and the Low-E glass, the second conveying unit (22) comprises a plurality of conveying belts (62) arranged at intervals along the length direction of the white glass and the Low-E glass, the plurality of conveying rollers (61) and the plurality of conveying belts (62) are arranged at intervals, and the second conveying unit (22) is liftable. The closer to the conveying head end of the first conveying unit (21), the more densely the plurality of conveying belts (62) are arranged.
3. The vacuum glazing system of claim 1, wherein: The white glass conveying line is provided with a powder coating machine (71), a drying machine (72) and a point distributing machine (73) connected in sequence, the powder coating machine (71) is connected with the turning conveying device (20), and the point distributing machine (73) is connected with the splicing conveying device (50).
4. The vacuum glazing system of claim 1, wherein: The second side alignment wheel (32) is a conical wheel, and the outer diameter of the second side alignment wheel (32) gradually decreases from bottom to top. The first side alignment wheel (23), the second side alignment wheel (32) and the blocking wheel (34) are all rubber wheels, and the side flexible blocking block (53) and the end flexible blocking block (54) are both rubber blocking blocks.
5. The vacuum glazing system of claim 1, wherein: The Low-E glass conveying line is provided with a second inductor (35) at the conveying head end of the third conveying unit (31).
6. The vacuum glazing system of claim 1, wherein: The Low-E glass conveying line is also provided with a piece-to-be-spliced conveying device (80), and the piece-to-be-spliced conveying device (80) is arranged between the turning conveying device (20) and the Low-E glass conveying device (30). The piece-to-be-spliced conveying device (80) comprises a sixth conveying unit (81) consistent with the conveying direction of the second conveying unit (22) and a third inductor (82), and the third inductor (82) is arranged at the conveying head end of the sixth conveying unit (81).
7. The vacuum glazing system of claim 1, wherein: The fourth conveying unit (51) comprises a plurality of conveying rollers (61) arranged at intervals along the length direction of the white glass and the Low-E glass, the fifth conveying unit (52) comprises a plurality of conveying belts (62) arranged at intervals along the length direction of the white glass and the Low-E glass, the plurality of conveying rollers (61) and the plurality of conveying belts (62) are arranged at intervals, and the fifth conveying unit (52) is liftable. The closer to the conveying tail end of the fourth conveying unit (51), the more densely the plurality of conveying belts (62) are arranged.
8. The vacuum glazing system of claim 1, wherein: The splicing conveying device (50) further comprises a fourth inductor (55) and a fifth inductor (56), the fourth inductor (55) is arranged at the conveying head end of the fourth conveying unit (51), and the fifth inductor (56) is arranged at the conveying head end of the fifth conveying unit (52). The third side alignment unit further comprises a first lifting driving cylinder (57) mounted to the support frame of the splicing conveying device (50) and a first lifting transmission unit (58), the first lifting driving cylinder (57) is in transmission connection with the side flexible blocking block (53) through the first lifting transmission unit (58) and drives the side flexible blocking block (53) to lift. The third end alignment unit further comprises a second lifting driving cylinder (59) mounted on a support frame of the assembly conveying device (50), and a second lifting transmission unit (510), the second lifting driving cylinder (59) is in transmission connection with the end flexible stopper (54) through the second lifting transmission unit (510) to drive the end flexible stopper (54) to lift.
9. The vacuum glazing system of claim 1, wherein: The vacuum glass assembly system further comprises an assembly detection device (90) connected with the assembly conveying device (50), the assembly detection device (90) comprises a seventh conveying unit (91) and an image acquisition unit mounted on the top of the seventh conveying unit (91), the conveying direction of the seventh conveying unit (91) is consistent with the conveying direction of the fourth conveying unit (51).
10. A vacuum glass lamination method adaptable to various glass specifications, characterized in that: The vacuum glass assembly method using the vacuum glass assembly system of any one of claims 1-9 comprises the following steps: S1, setting a control system, so that each driving source and each sensor in the sheet feeding machine (10), the turning conveying device (20), the assembly conveying device (50), the white glass conveying line and the Low-E glass conveying line are in communication connection with the control system; S2, the sheet feeding machine (10) conveys the white glass and the Low-E glass to the turning conveying device (20) in a set order, and the Low-E glass is conveyed with the film-coated surface upward; S3, at the turning conveying device (20): First, control the first conveying unit (21) to be higher than the second conveying unit (22), and the white glass or the Low-E glass is carried by the first conveying unit (21); when the end of the white glass or the Low-E glass passes the first sensor (24), the control system controls the first conveying unit (21) to stop conveying the white glass or the Low-E glass for a set distance; Second, control the second conveying unit (22) to be higher than the first conveying unit (21), and the white glass or the Low-E glass is transferred to the second conveying unit (22), and the second conveying unit (22) conveys the white glass or the Low-E glass to the first side alignment wheel (23) until the white glass or the Low-E glass abuts against the first side alignment wheel (23); Then, when the glass on the second conveying unit (22) is the Low-E glass, the second conveying unit (22) conveys the Low-E glass to the Low-E glass conveying line; when the glass on the second conveying unit (22) is the white glass, control the first conveying unit (21) to be higher than the second conveying unit (22), and the white glass is transferred to the first conveying unit (21), and the first conveying unit (21) conveys the white glass to the white glass conveying line; S4, the white glass conveying line conveys the white glass to the assembly conveying device (50), and at the assembly conveying device (50): First, control the fourth conveying unit (51) to be higher than the fifth conveying unit (52), and the white glass is carried by the fourth conveying unit (51); Secondly, the fifth conveying unit (52) is controlled to be higher than the fourth conveying unit (51), the white glass is transferred to the fifth conveying unit (52), the fifth conveying unit (52) conveys the white glass towards the side flexible stopper (53) until the white glass abuts against the side flexible stopper (53); Then, the fourth conveying unit (51) is controlled to be higher than the fifth conveying unit (52), the white glass is transferred to the fourth conveying unit (51), the fourth conveying unit (51) conveys the white glass towards the end flexible stopper (54) until the white glass abuts against the end flexible stopper (54); At this point, the actual position of the white glass on the splicing conveying device (50) is determined by the side flexible stopper (53) and the end flexible stopper (54); S5, the Low-E glass conveying line conveys the Low-E glass to the Low-E glass conveying device (30), at the Low-E glass conveying device (30): Firstly, the Low-E glass is conveyed by the third conveying unit (31), the third conveying unit (31) conveys the Low-E glass towards the second side alignment wheel (32) until the Low-E glass abuts against the second side alignment wheel (32); Secondly, the suction cup (41) of the moving mechanical hand (40) moves to the lower side of the Low-E glass and sucks the non-coated surface of the Low-E glass; Then, the piston rod of the readable stroke cylinder (33) drives the stop wheel (34) to move towards the Low-E glass until the stop wheel (34) collides with the short side of the Low-E glass, the position of the short side of the Low-E glass is measured; the position of the short side of the Low-E glass is sent to the control system by the readable stroke cylinder (33) and is input into the moving mechanical hand (40) by the control system; After that, the moving mechanical hand (40) adjusts the movement track of the suction cup (41) according to the actual position of the Low-E glass and the actual position of the white glass, controls the suction cup (41) to drive the Low-E glass to overturn 180° and covers the Low-E glass on the white glass in the way of coating surface downwards, realizes the splicing of the Low-E glass and the white glass.