A glass coating system

Abstract

This application relates to the technical field of glass coating, and in particular to a glass coating system, including a feeding platform, a coating chamber, and a discharging platform. Vacuum chambers are located on both sides of the coating chamber. A pre-vacuum chamber is located on the side of each vacuum chamber facing away from the coating chamber. Several drive rollers are rotatably connected to the bottom of the pre-vacuum chamber, forming gaps between them. Adjacent gaps are divided into a front gap near the feeding platform and a rear gap near the discharging platform along the transmission direction of the drive rollers. A detection module and a correction baffle are installed within the gaps. The detection module in the front gap is electrically connected to the correction baffle in the rear gap. The detection module includes a controller and at least two detection sensors located on both sides of the glass. The controller is electrically connected to the detection sensors. The correction baffle is vertically slidably connected within the gap via a vertical push rod. During the glass transport within the pre-vacuum chamber, the glass undergoes continuous correction, thereby improving the glass's positional accuracy and ensuring the subsequent coating effect.

Description

Technical Field

[0001] This application relates to the technical field of glass coating, and in particular to a glass coating system. Background Technology

[0002] Glass coating is the deposition of one or more thin films on the glass surface using physical or chemical methods to impart special functions such as heat insulation, UV protection, anti-glare, and anti-reflection. It is widely used in construction, automotive, electronics, and many other fields. As the core equipment for glass coating, the rationality of the glass coating system's structure directly affects coating efficiency, coating quality, and the glass processing yield. Among these, the continuity of feeding and conveying, vacuum transfer, coating operations, and material collection is crucial to ensuring the stability of the coating process.

[0003] Currently, most existing glass coating systems consist of a feeding platform, a vacuum chamber, a coating chamber, and a discharging platform. To improve the vacuum efficiency of the vacuum chamber and ensure the vacuum environment of the coating chamber, a pre-vacuum chamber is usually set up on the side of the vacuum chamber away from the coating chamber. This allows for a gradient vacuum transition before the glass enters the coating chamber, reducing the impact of external air on the coating environment.

[0004] However, existing glass coating systems still have many technical defects in practical applications, making it difficult to meet the requirements of high-precision coating: during the process of feeding and conveying glass to the coating chamber, the glass is prone to deviation on the transmission roller due to problems such as feeding table conveying deviation and glass placement offset. If the offset is too large, it will cause uneven glass coating, edge missed coating, or even cause the glass to collide and be damaged with the inner wall of the coating chamber, which will greatly reduce the product qualification rate. Summary of the Invention

[0005] To address the aforementioned technical problems, this application provides a glass coating system.

[0006] The glass coating system provided in this application adopts the following technical solution: A glass coating system includes a feeding platform, a coating chamber, and a discharging platform. Vacuum chambers are located on both sides of the coating chamber. A pre-vacuum chamber is located on the side of each vacuum chamber facing away from the coating chamber. Several drive rollers are rotatably connected to the bottom of the pre-vacuum chamber. Gaps are formed between the drive rollers. Adjacent gaps are divided into a front gap near the feeding platform and a rear gap near the discharging platform along the drive direction of the drive rollers. A detection module and a correction baffle are located within the gaps. The detection module in the front gap is electrically connected to the correction baffle in the rear gap. The detection module includes a controller and at least two detection sensors located on both sides of the glass. The controller is electrically connected to the detection sensors. The correction baffle is vertically slidably connected within the gap via a vertical push rod.

[0007] By adopting the above technical solution, the operator places the glass on the feeding platform, which sequentially feeds the glass into the pre-vacuum chamber, then into the vacuum chamber, and finally into the coating chamber for coating. The glass enters the pre-vacuum chamber for pre-coating preparation. The glass moves from one end of the pre-vacuum chamber to the other via transmission rollers. When the end of the glass passes through the gap, two detection sensors detect both sides of the glass end and transmit the detected signals to the controller. The controller calculates the time difference between the signals from the two sensors. If the time difference is small, it indicates that the glass is aligned and can undergo normal coating; in this case, the glass continues the initial coating process under the transmission rollers. If the time difference is large, it indicates that the glass is tilted and needs correction. The controller controls the vertical push rod to rise, thereby lifting the correction baffle. The correction baffle in the rear gap extends out from the rear gap and blocks the front of the glass, preventing it from tilting. The tilted side of the glass first touches the correction baffle, which restricts the glass's tilt. Under the continuous conveying of the transmission rollers and the obstruction of the correction baffle, the glass gradually returns to its upright position. The correction baffle then descends, and the glass continues to advance for coating. During the glass's transport within the pre-vacuum chamber, it undergoes continuous correction to improve its positional accuracy and ensure the effectiveness of the subsequent coating process.

[0008] Preferably, the upper end of the vertical push rod is fixedly connected to a lifting seat, the lifting seat is provided with a vertical sliding groove, the correction baffle is vertically slidably connected in the sliding groove, an elastic damper is provided between the bottom of the correction baffle and the sliding groove, and the upper end of the correction baffle is provided with a contact slope for contacting the glass on the side facing the feeding table.

[0009] By employing the above technical solution, the correction baffle blocks the glass. When the glass impacts the contact ramp, the correction baffle applies a tilted correction force to the glass, driving it back to its correct position. Simultaneously, the glass exerts downward pressure on the correction baffle through the contact ramp, overcoming the resistance of the elastic damper, thereby pressing the correction baffle down so that the glass can continue moving past it. The contact ramp and the elastic damper provide a certain buffering force for the correction baffle. When the glass contacts the correction baffle, the baffle provides sufficient resistance to correct the deviation without causing a hard collision with the glass, thus preventing damage.

[0010] Preferably, the two ends of the contact slope are respectively provided with a correction belt that is rotatably connected to the correction baffle, and the two correction belts are conveyed in a direction away from each other.

[0011] By adopting the above technical solution, when the inclined angle of the glass impacts the contact inclined surface, the inclined angle of the glass contacts the correction belt, and the correction belt pushes the inclined angle of the glass to move to both sides, thereby increasing the correction force on the glass and improving the correction effect.

[0012] Preferably, the top of the correction baffle is provided with several air flotation holes, and each air flotation hole is provided with an electromagnetic valve for controlling the opening and closing of the air flotation hole. The electromagnetic valve located in the same gap is electrically connected to the detection module.

[0013] By adopting the above technical solution, when the detection module detects that the glass is tilted and corrects it, the correction baffle blocks the end of the glass and applies a horizontal correction force. In addition, the detection module controls the solenoid valve to open, and protective gas is sprayed out of the air float hole to blow air onto the bottom of the glass, providing support for the glass, thereby reducing the friction between the glass and the transmission roller, and making it easier for the glass to return to the correct position.

[0014] Preferably, a guide rail parallel to the gap is provided in the gap, and at least two electric sliders are slidably connected in the guide rail. Each electric slider corresponds to and is connected to a detection sensor.

[0015] By adopting the above technical solution, the detection sensor can slide along the guide rail via an electric slider to adapt to glass of different widths.

[0016] Preferably, the guide rail includes a positioning guide rail and a detection guide rail. The positioning guide rail is located in the gap of the pre-vacuum chamber near the feeding platform. The electric slider includes a positioning slider located in the positioning guide rail and a detection slider located in the detection guide rail. The positioning slider and the detection slider are electrically connected through a controller.

[0017] By adopting the above technical solution, when the glass enters the pre-vacuum chamber, the positioning slider drives the detection sensor to move towards the glass, detects the approximate width of the glass, and feeds it back to all subsequent detection sliders through the controller. Under the control of the controller, the subsequent detection sliders move directly to the positions on both sides of the glass to detect the tilt state of the glass, so as to avoid the difference between the position of the subsequent detection slider and the edge position of the glass being too large, which would affect the detection effect.

[0018] Preferably, a horizontal adjustment groove is provided on the contact slope, and an electric adjustment block is slidably connected to both ends of the adjustment groove, and the correction band covers the outer wall of the electric adjustment block.

[0019] By adopting the above technical solution, the electric adjusting block slides along the adjusting groove, thereby changing the position of the correction belt to adapt to glass of different widths.

[0020] Preferably, the electric adjusting block and the electric slider are electrically connected via a controller.

[0021] By adopting the above technical solution, after the positioning slider detects the width of the glass, it synchronously transmits the information to the electric adjusting block through the controller. The electric adjusting block moves under the action of the controller, so that the correction belt is aligned with both ends of the glass, which facilitates the correction of the glass.

[0022] In summary, this application includes the following beneficial technical effects: By setting up detection modules and correction baffles, the glass is continuously corrected during its transfer in the pre-vacuum chamber, thereby improving the positional accuracy of the glass and ensuring the subsequent coating effect. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the embodiment; Figure 2 This is a schematic diagram of the internal structure of the pre-vacuum chamber in the embodiment; Figure 3 yes Figure 2 Enlarged diagram of section A in the middle; Figure 4 This is a schematic diagram showing the connection between the correction baffle and the lifting seat in the embodiment; Figure 5 This is a schematic diagram of the connection between the detection sensor and the guide rail in the embodiment.

[0024] Explanation of reference numerals in the attached figures: 1. Feeding platform; 2. Coating chamber; 3. Discharge platform; 4. Vacuum chamber; 5. Pre-vacuum chamber; 6. Drive roller; 7. Gap; 8. Front gap; 9. Back gap; 10. Detection module; 11. Correction baffle; 12. Controller; 13. Detection sensor; 14. Vertical push rod; 15. Lifting seat; 16. Slide rail; 17. Elastic damper; 18. Contact slope; 19. Correction belt; 20. Air float hole; 21. Solenoid valve; 22. Guide rail; 23. Electric slider; 24. Positioning guide rail; 25. Detection guide rail; 26. Positioning slider; 27. Detection slider; 28. Adjustment groove; 29. ​​Electric adjustment block. Detailed Implementation

[0025] The present application will now be described in further detail with reference to all accompanying drawings.

[0026] Example

[0027] This application discloses a glass coating system, referring to... Figure 1 The system includes a feeding platform 1, a coating chamber 2, and a discharging platform 3. Vacuum chambers 4 are sealed to both sides of the coating chamber 2, and a pre-vacuum chamber 5 is located on the side of each vacuum chamber 4 facing away from the coating chamber 2. The feeding platform 1 connects to the pre-vacuum chamber 5 near the feeding end, and the discharging platform 3 connects to the pre-vacuum chamber 5 near the discharging end, enabling a continuous operation of glass from feeding, vacuum transition, coating, to discharging. The pre-vacuum chamber 5 works in conjunction with the vacuum chambers 4 to achieve a gradient vacuum transition before the glass enters the coating chamber 2, reducing the influence of external air on the vacuum environment inside the coating chamber 2 and ensuring coating quality.

[0028] Reference Figure 1 and Figure 2The bottom of the pre-vacuum chamber 5 is rotatably connected to several parallel, spaced-apart drive rollers 6. The drive direction of these drive rollers 6 is consistent with the glass conveying direction, used for smooth glass conveying. Gap 7 is formed between the drive rollers 6. Two adjacent gaps 7 are divided along the drive direction of the drive rollers 6 into a front gap 8 near the feed table 1 and a rear gap 9 near the discharge table 3. Each gap 7 is equipped with a detection module 10 and a correction baffle 11. The detection module 10 in the front gap 8 and the correction baffle 11 in the rear gap 9 are electrically connected via circuitry to achieve synchronous linkage between the detection signal and the correction action.

[0029] Reference Figure 1 and Figure 2 The detection module 10 includes a controller 12 and at least two detection sensors 13. In this embodiment, two detection sensors 13 are provided. The two detection sensors 13 are symmetrically arranged on both sides of the glass and correspond to the edge of the glass, and are used to detect the position of the glass end. The controller 12 is electrically connected to the detection sensors 13 and can receive and analyze the detection signals transmitted by the detection sensors 13.

[0030] Reference Figure 1 and Figure 2 The correction baffle 11 is vertically slidably connected to the gap 7 via a vertical push rod 14. The vertical push rod 14 is an electric push rod, with its bottom fixed to the bottom of the pre-vacuum chamber 5 and its upper end connected to the correction baffle 11. It can drive the correction baffle 11 to rise and fall in the vertical direction, so that the correction baffle 11 can extend or retract from the gap 7.

[0031] Reference Figure 1 and Figure 2 The operator places the glass to be coated on the feeding platform 1. The feeding platform 1 feeds the glass into the pre-vacuum chamber 5 and the vacuum chamber 4 in sequence, and finally into the coating chamber 2 for coating operation. After the glass enters the pre-vacuum chamber 5, the vacuum pretreatment before coating is completed.

[0032] Reference Figure 1 and Figure 2 The glass is driven by the drive roller 6 within the pre-vacuum chamber 5, moving from one end to the other. When the end of the glass passes the front gap 8, two detection sensors 13 simultaneously detect both sides of the glass end and transmit the detected signals to the controller 12 in real time. The controller 12 determines the placement status of the glass based on the time difference between the signals from the two detection sensors 13: if the time difference is small, it indicates that the glass is placed correctly and can proceed normally to the subsequent coating process; in this case, the glass continues to move forward under the transmission of the drive roller 6. If the time difference is large, it indicates that the glass is tilted and needs to be corrected.

[0033] Reference Figure 1 and Figure 2At this time, the controller 12 controls the vertical push rod 14 in the rear gap 9 to rise upward, causing the correction baffle 11 to extend from the rear gap 9 and block the glass's forward path. The inclined end of the glass first contacts the correction baffle 11, which applies a blocking and limiting force to the glass. Under the continuous conveying action of the transmission roller 6 and the blocking action of the correction baffle 11, the glass gradually returns to its correct position. After the glass returns to its correct position, the controller 12 controls the vertical push rod 14 to retract, causing the correction baffle 11 to fall into the gap 7. The glass continues to move forward, passing through the vacuum chamber 4 and entering the coating chamber 2 to complete the coating, and finally being output through the discharge table 3. Through the above structure, the glass can be detected and dynamically corrected in real time during the transmission process in the pre-vacuum chamber 5, effectively improving the positional accuracy of the glass and ensuring the uniformity and consistency of the subsequent coating.

[0034] Reference Figures 1 to 3 In a preferred embodiment, a lifting seat 15 is fixedly connected to the upper end of the vertical push rod 14. A vertical groove 16 is provided on the lifting seat 15. The correction baffle 11 is vertically slidably connected in the groove 16 and can slide up and down along the groove 16. An elastic damper 17 is provided between the bottom of the correction baffle 11 and the bottom of the groove 16. The elastic damper 17 can dampen and limit the sliding of the correction baffle 11.

[0035] Reference Figures 1 to 4 The upper end of the correction baffle 11, facing the feed table 1, is provided with a contact slope 18. The contact slope 18 is inclined in the direction of glass movement and is used to contact the end of the glass. When the correction baffle 11 blocks the glass, the end of the glass impacts the contact slope 18, and the contact slope 18 applies an inclined correction force to the glass, driving the glass to quickly return to the correct position. At the same time, the glass exerts downward pressure on the correction baffle 11 through the contact slope 18. This pressure overcomes the resistance of the elastic damper 17 and drives the correction baffle 11 to slide downward along the slide groove 16, so that the glass can smoothly pass over the correction baffle 11 and continue to move forward. The cooperation of the contact slope 18 and the elastic damper 17 provides good buffering performance for the correction baffle 11, so that when the glass contacts the correction baffle 11, it can ensure the correction effect without hard collision, effectively avoiding scratches or damage to the glass surface.

[0036] Reference Figures 1 to 4A horizontal adjustment groove 28 is provided on the contact slope 18, extending along the width of the glass. Electric adjustment blocks 29 are slidably connected to both ends of the adjustment groove 28, and can slide horizontally along the adjustment groove 28. The outer wall of the electric adjustment block 29 is covered with a correction belt 19, which is rotatably connected to the electric adjustment block 29. Correction belts 19, rotatably connected to the correction baffle 11, are provided at both ends of the contact slope 18. The two correction belts 19 are conveyed in directions away from each other and are made of flexible, wear-resistant material to avoid damaging the glass surface. When the tilted end of the glass impacts the contact slope 18, the tilted end of the glass contacts the correction belt 19. The two mutually distancing correction belts 19 apply a pushing force to both sides of the tilted end of the glass, thereby increasing the correction force on the glass, accelerating the glass's return speed, and further improving the correction effect and efficiency.

[0037] Reference Figures 1 to 4 The top of the correction baffle 11 has several evenly distributed air-float holes 20, each containing a solenoid valve 21 for controlling the opening and closing of the air-float holes 20. All solenoid valves 21 located within the same gap 7 are electrically connected to the controller 12 of the detection module 10 for synchronous control. When the detection module 10 detects glass tilt and initiates the correction action, the controller 12 synchronously controls the solenoid valves 21 to open, and inert protective gas (preferably nitrogen in this embodiment) is ejected from the air-float holes 20 to blow air onto the bottom of the glass, providing upward support and effectively reducing the friction between the glass and the transmission roller 6. This allows the glass to return to center more smoothly under the action of the correction force. At the same time, the protective gas prevents scratches caused by friction between the bottom of the glass and the transmission roller 6, further ensuring the surface quality of the glass.

[0038] Reference Figures 1 to 5 A guide rail 22 parallel to the gap 7 is provided inside the gap 7, and the guide rail 22 is fixed to the bottom of the pre-vacuum chamber 5. At least two electric sliders 23 are slidably connected inside the guide rail 22. The electric sliders 23 correspond one-to-one with the detection sensors 13 and are fixedly connected. The electric sliders 23 can slide along the guide rail 22, driving the detection sensors 13 to move synchronously, thereby adjusting the position of the detection sensors 13 according to the width of the glass, adapting to different specifications of glass, and improving the versatility of the system.

[0039] Reference Figures 1 to 5The guide rail 22 includes a positioning guide rail 24 and a detection guide rail 25. The positioning guide rail 24 is located in the gap 7 on the side of the pre-vacuum chamber 5 near the feeding table 1. The electric slider 23 includes a positioning slider 26 located in the positioning guide rail 24 and a detection slider 27 located in the detection guide rail 25. The positioning slider 26 and the detection slider 27 are electrically connected through the controller 12 to achieve synchronous signal transmission. When the glass enters the pre-vacuum chamber 5, the positioning slider 26 drives the corresponding detection sensor 13 to move towards the glass, detects the approximate width of the glass, and feeds back the width signal to all subsequent detection sliders 27 through the controller 12. Under the control of the controller 12, the subsequent detection sliders 27 slide directly to the corresponding positions on both sides of the glass to accurately detect the tilt state of the glass, avoiding excessive deviation between the position of the subsequent detection sliders 27 and the edge of the glass, which would affect the detection accuracy and correction effect.

[0040] Reference Figures 1 to 5 The electric adjusting block 29 and the electric slider 23 are electrically connected through the controller 12 to achieve linkage control. After the positioning slider 26 detects the width of the glass, it transmits the width signal synchronously to the electric adjusting block 29 through the controller 12. Under the control of the controller 12, the electric adjusting block 29 moves automatically, so that the correction belt 19 is precisely aligned with both ends of the glass, eliminating the need for manual adjustment, improving the convenience of operation, and further enhancing the accuracy of correction.

[0041] The implementation principle of a glass coating system according to an embodiment of this application is as follows: The glass to be coated is fed into the pre-vacuum chamber 5 via the feeding table 1, and the transmission roller 6 drives the glass to be transported. The positioning slider 26 in the front gap 8 drives the detection sensor 13 to detect the width of the glass and feeds the signal back to the controller 12. The controller 12 controls the detection slider 27 and the electric adjusting block 29 to adjust to the corresponding positions synchronously. When the end of the glass passes through the front gap 8, the two detection sensors 13 detect and transmit the signal to the controller 12. The controller 12 determines whether the glass is tilted based on the signal time difference. If it is tilted, the controller 12 controls the vertical push rod 14 in the rear gap 9 to lift the correction baffle 11, and at the same time opens the solenoid valve 21. The air float hole 20 sprays protective gas to support the glass. The tilted end of the glass hits the correction belt 19 on the contact slope 18. Under the action of the pushing force of the correction belt 19, the blocking force of the correction baffle 11 and the conveying force of the transmission roller 6, the glass is straightened. After the glass is straightened, the controller 12 controls the correction baffle 11 to fall and the solenoid valve 21 to close, and the glass continues to move forward. Furthermore, the pre-vacuum chamber 5 is gradually evacuated until the vacuum level is the same as that inside the vacuum chamber 5. The glass then enters the coating chamber 2 through the vacuum chamber 4 to complete the coating process, and finally exits from the discharge station 3. The entire process enables real-time detection and automatic correction of the glass, adapts to different glass specifications, effectively protects the glass surface, and ensures coating quality.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A glass coating system, comprising a feeding platform (1), a coating chamber (2), and a discharging platform (3), wherein vacuum chambers (4) are provided on both sides of the coating chamber (2), and a pre-vacuum chamber (5) is provided on the side of each vacuum chamber (4) facing away from the coating chamber (2), characterized in that: The bottom of the pre-vacuum chamber (5) is rotatably connected to several transmission rollers (6), and gaps (7) are formed between the transmission rollers (6). Two adjacent gaps (7) are divided into a front gap (8) near the feed table (1) and a rear gap (9) near the discharge table (3) along the transmission direction of the transmission rollers (6). A detection module (10) and a correction baffle (11) are provided in the gap (7). The detection module (10) in the front gap (8) is electrically connected to the correction baffle (11) in the rear gap (9). The detection module (10) includes a controller (12) and at least two detection sensors (13) located on both sides of the glass. The controller (12) is electrically connected to the detection sensors (13). The correction baffle (11) is vertically slidably connected in the gap (7) by a vertical push rod (14).

2. The glass coating system according to claim 1, characterized in that: The upper end of the vertical push rod (14) is fixedly connected to a lifting seat (15), and a vertical slide groove (16) is provided on the lifting seat (15). The correction baffle (11) is vertically slidably connected in the slide groove (16). An elastic damper (17) is provided between the bottom of the correction baffle (11) and the slide groove (16). The upper end of the correction baffle (11) facing the feeding table (1) is provided with a contact slope (18) for contacting the glass.

3. The glass coating system according to claim 2, characterized in that: The two ends of the contact inclined surface (18) are respectively provided with a correction belt (19) that is rotatably connected to the correction baffle (11), and the two correction belts (19) are conveyed in a direction away from each other.

4. The glass coating system according to claim 1, characterized in that: The top of the correction baffle (11) is provided with several air flotation holes (20), and the air flotation holes (20) are provided with electromagnetic valves (21) for controlling the opening and closing of the air flotation holes (20). The electromagnetic valves (21) located in the same gap (7) are electrically connected to the detection module (10).

5. A glass coating system according to claim 3, characterized in that: The gap (7) is provided with a guide rail (22) parallel to the gap (7), and at least two electric sliders (23) are slidably connected in the guide rail (22). The electric sliders (23) correspond one-to-one with the detection sensor (13) and are connected to it.

6. A glass coating system according to claim 5, characterized in that: The guide rail (22) includes a positioning guide rail (24) and a detection guide rail (25). The positioning guide rail (24) is located in the gap (7) of the pre-vacuum chamber (5) near the feed table (1). The electric slider (23) includes a positioning slider (26) located in the positioning guide rail (24) and a detection slider (27) located in the detection guide rail (25). The positioning slider (26) and the detection slider (27) are electrically connected through a controller (12).

7. A glass coating system according to claim 6, characterized in that: A horizontal adjustment groove (28) is provided on the contact inclined surface (18), and electric adjustment blocks (29) are slidably connected to both ends of the adjustment groove (28). The correction band (19) covers the outer wall of the electric adjustment block (29).

8. A glass coating system according to claim 7, characterized in that: The electric adjusting block (29) and the electric slider (23) are electrically connected through the controller (12).

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