Gas isolation device and coating production line

Abstract

The utility model discloses a gas isolation device and a coating production line, and relates to the technical field of glass coating. The gas isolation device comprises a conveying table, a lifting assembly and a first gas isolation plate, the conveying table is provided with a conveying assembly, the conveying table is configured to bear a to-be-coated part, and the conveying assembly is configured to convey the to-be-coated part in the first direction; the lifting assembly is arranged on the conveying table and comprises a driving part and a plurality of lifting supporting parts, each lifting supporting part comprises a rotating end and a supporting end, the rotating ends are rotationally connected with the conveying table, and the driving part is configured to drive the lifting supporting parts to rotate; the first gas separating plate is arranged above the conveying table, and the supporting end abuts against the first gas separating plate in a sliding mode so that the distance between the first gas separating plate and the part to be coated can be adjusted. According to the gas isolation device, the height of the first gas isolation plate can be adjusted through the driving piece on the premise that the gas isolation device is not shut down, so that a good gas isolation effect is achieved, and the equipment cost and the energy consumption cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of glass coating, in particular to a gas isolation device and a coating production line. Background Art

[0002] With technological advancements, new types of glass are constantly emerging, including coated glass. Coated glass is a glass surface coated with one or more layers of thin films made of metal, alloy, or metal compound to modify its optical properties to meet specific requirements. Coated glass not only functions as ordinary glass but can also enhance or reduce reflected light, depending on the coating, and can even directly generate electricity from sunlight.

[0003] Typically, a coating production line includes at least two coating chambers, each with different vacuum requirements depending on the coating process. To prevent cross-contamination between adjacent coating chambers, a gas barrier is installed between them to ensure the purity of the coating atmosphere. However, the gas barrier plates within the gas barrier are fixed at a fixed height. To accommodate coating operations on a variety of glass thicknesses, the distance between the gas barrier plates and the transfer platform is large, resulting in insufficient atmosphere purity, which in turn affects film quality and uniformity.

[0004] In order to improve the gas isolation effect, the gas isolation plate needs to be lowered. When producing thick glass, the gas isolation plate needs to be raised again, but the machine needs to be stopped and the air needs to be broken for adjustment, which takes a long time. Alternatively, the number of molecular pumps can be increased to improve the vacuuming effect, but this will increase equipment costs and energy consumption costs. Utility Model Content

[0005] The purpose of the utility model is to provide a gas isolation device and a coating production line, which can adjust the height of the first gas isolation plate through a driving member without stopping the machine, thereby obtaining a better gas isolation effect and reducing equipment cost and energy consumption cost.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A gas isolation device, comprising:

[0008] A transmission platform, wherein the transmission platform is provided with a transmission component, the transmission platform is configured to carry the workpiece to be coated, and the transmission component is configured to transport the workpiece to be coated along a first direction;

[0009] A lifting assembly is provided on the transmission platform, the lifting assembly includes a driving member and a plurality of lifting support members, the lifting support member includes a rotating end and a supporting end, the rotating end is rotatably connected to the transmission platform, and the driving member is configured to drive the plurality of lifting support members to rotate;

[0010] A first air separation plate is provided above the transmission platform, and the support end is in sliding contact with the first air separation plate to adjust the distance between the first air separation plate and the workpiece to be coated.

[0011] As an optional solution for the above-mentioned gas isolation device, the driving member is a screw, and the lifting assembly includes sliders and connecting rods corresponding to multiple lifting support members one by one. The screw is passed through the slider and is threadedly connected to the slider, and the two ends of the connecting rod are respectively pivotally connected to the slider and the lifting support member.

[0012] As an optional solution for the above-mentioned gas isolation device, the transmission platform is fixed with multiple fixing parts, and the multiple fixing parts are pivotally connected with the multiple connecting rods in a one-to-one correspondence. The screw rod is passed through the multiple fixing parts and is rotatably connected with the multiple fixing parts.

[0013] As an optional solution to the above-mentioned gas isolation device, a plurality of anti-rotation pads are provided on the transfer platform, and the slider has an anti-rotation plane. The anti-rotation planes of the plurality of sliders correspond one-to-one to the plurality of anti-rotation pads and are in sliding contact with each other.

[0014] As an optional solution of the above-mentioned gas isolation device, a roller is rotatably provided on the supporting end of the lifting support member, and the roller is in rolling contact with the first gas isolation plate.

[0015] As an optional solution for the above-mentioned gas isolation device, the first gas isolation plate includes a top plate and a bottom plate, the bottom plate includes an adjusting part and a fixing part, the fixing part is fixedly connected to the top plate, the adjusting part is located below the top plate and spaced apart from the top plate, and the supporting end of the lifting support member is in sliding contact with the fixing part.

[0016] As an optional solution to the above-mentioned gas isolation device, the gas isolation device includes two groups of lifting components, which are respectively arranged at both ends of the transmission platform along the first direction, and the multiple lifting support members of each group of lifting components are arranged at intervals along the second direction, and the second direction is set at an angle to the first direction.

[0017] As an optional solution to the above-mentioned gas isolation device, the gas isolation device also includes a transmission assembly, the transmission assembly includes a handle and a transmission member, the handle is transmission-connected to the driving member of one group of the lifting assemblies, and the transmission member is transmission-connected to the driving members of two groups of the lifting assemblies so that the driving members of the two groups of the lifting assemblies move synchronously.

[0018] A coating production line, characterized in that it includes the gas isolation device and at least two coating cavities, two adjacent coating cavities are connected through a gas isolation cavity, the gas isolation device is arranged in the gas isolation cavity, and the first gas isolation plate can adjust the gas isolation effect between the two adjacent coating cavities.

[0019] As an optional solution for the above-mentioned coating production line, the gas isolation device also includes a second air isolation plate, two partition plates are arranged above the first air isolation plate, the second air isolation plate is sealed to the inner wall of the air isolation cavity, and the bottom end of the second air isolation plate is arranged between the two partition plates.

[0020] Beneficial effects of the utility model:

[0021] The utility model provides a gas isolation device and a coating production line. The gas isolation device can use a driving member of a lifting assembly to drive the rotation of multiple lifting supports supporting a first gas isolation plate. This allows the height of the supporting ends of the lifting supports to be adjusted, thereby changing the height of the first gas isolation plate and adjusting the distance between the first gas isolation plate and the glass on the conveyor platform. This ensures that the gas isolation device can provide a good gas isolation effect when glass of different thicknesses passes through the gas isolation device.

[0022] The gas isolation device can adjust the height of the first gas isolation plate through a driving member without stopping the machine, thereby achieving a better gas isolation effect and reducing equipment costs and energy consumption costs.

[0023] The coating production line can ensure the gas isolation effect between two adjacent coating chambers through the gas isolation device, avoid gas cross-talk, and ensure the requirements of the gas isolation coefficient for glasses of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of the coating production line provided by the utility model;

[0025] Figure 2 It is a structural schematic diagram of the gas isolation device provided by the utility model;

[0026] Figure 3 This is a schematic structural diagram of the first air separator provided by the present invention;

[0027] Figure 4 It is a structural schematic diagram of the transmission platform provided by the utility model;

[0028] Figure 5 It is a structural diagram of the lifting assembly provided by the utility model;

[0029] Figure 6 yes Figure 5 A partial enlarged view of point A in the middle;

[0030] Figure 7 It is a cross-sectional view of the gas isolation device provided by the utility model;

[0031] Figure 8 It is a structural schematic diagram of the air separator provided by the utility model.

[0032] In the picture:

[0033] 100, coating chamber; 101, cathode; 101, air barrier chamber; 102, sidewall; 103, air barrier; 1031, air barrier protrusion;

[0034] 1. Transmission platform; 11. Transmission roller; 12. Fixing member; 13. Anti-rotation pad;

[0035] 2. Lifting assembly; 21. Driving member; 22. Lifting support member; 221. Support end; 222. Rotating end; 23. Slider; 24. Connecting rod; 25. Roller;

[0036] 3. First air baffle; 31. Top plate; 32. Bottom plate; 321. Adjustment portion; 322. Fixing portion; 33. Partition plate;

[0037] 4. Second air barrier;

[0038] 5. Transmission assembly; 51. Handle; 52. Transmission parts. DETAILED DESCRIPTION

[0039] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0040] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0041] Unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed or removable connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0042] Unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0043] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0044] This embodiment provides a coating production line that can be used for multi-layer coating requirements of glass substrates, targeting each layer of coating process. Figure 1 As shown, the coating production line has at least two coating chambers 100, each of which is provided with a cathode 101. When a glass substrate passes through the coating chamber 100, a voltage is applied between the cathode 101 and the anode, so that the cathode 101 material or the material generated by the reaction between the cathode 101 material and the gas in the coating chamber 100 can collide with the glass substrate, thereby forming a uniform film layer on the surface of the glass substrate.

[0045] After the glass substrate passes through multiple coating chambers 100, multiple layers of film are formed on the glass substrate, completing the coating process. It is worth noting that, depending on the type of coating and process parameters, it is necessary to ensure that gas separation between adjacent coating chambers 100 is effective. Otherwise, gas cross-contamination between adjacent coating chambers 100 will occur, seriously affecting the film quality of the glass substrate and, in turn, the product quality.

[0046] In order to avoid cross-gas between two adjacent coating chambers 100, the two adjacent coating chambers 100 need to be connected through an air barrier chamber 101 to ensure the purity of the atmosphere in the coating section. Generally speaking, a coating production line includes at least two coating chambers 100, and each coating chamber 100 has different vacuum requirements according to the coating process. It is worth noting that the air barrier chamber 101 does not completely isolate the gas, but minimizes the passage of gas through the air barrier chamber 101 by making the distance between the air barrier plate and the glass substrate passing through the air barrier chamber 101 smaller. However, since the height of the air barrier plate in the air barrier chamber 101 is fixed, in order to be suitable for coating operations of a variety of glass thicknesses, the distance between the air barrier plate and the transmission platform 1 is large, which will lead to insufficient purity of the atmosphere, thereby affecting the quality and uniformity of the film.

[0047] In order to improve the gas isolation effect, the gas isolation plate needs to be lowered. When producing thick glass, the gas isolation plate needs to be raised again, but the machine needs to be stopped and the air needs to be broken for adjustment, which takes a long time. Alternatively, the number of molecular pumps can be increased to improve the vacuuming effect, but this will increase equipment costs and energy consumption costs.

[0048] like Figures 2 to 4 As shown, in order to solve the above problems, this embodiment provides a gas isolation device, which is arranged in the gas isolation cavity 101. The gas isolation device includes a first gas isolation plate 3 and a transmission platform 1. The transmission platform 1 is provided with a transmission component. The transmission platform 1 is configured to carry the parts to be coated. The transmission component is configured to transmit the parts to be coated along a first direction (X direction in the figure). The first gas isolation plate 3 can adjust the gas isolation effect between two adjacent coating cavities 100.

[0049] In this embodiment, two coating chambers 100 and an air barrier 101 between the two coating chambers 100 are used as examples for description, and a glass substrate is used as an example of an object to be coated. The transport assembly includes a plurality of transport rollers 11 spaced apart along a first direction. The upper ends of the plurality of transport rollers 11 are higher than the surface of the transport platform 1, and the glass substrate can be transported along the first direction by the rolling transport rollers 11.

[0050] The operator adjusts the distance between the first air baffle plate 3 and the transfer platform 1 according to the thickness of the glass substrate to be coated. After passing through one coating chamber 100, the glass substrate enters the air baffle chamber 101 and then enters the other coating chamber 100 for coating. The movable arrangement of the first air baffle plate 3 allows the operator to adjust the distance between the first air baffle plate 3 and the transfer platform 1 according to the thickness of the glass substrate to be coated, thereby adjusting the distance between the first air baffle plate 3 and the substrate to be coated, ensuring that the distance between the first air baffle plate 3 and the glass substrate is within an appropriate range. This ensures the air isolation between the two coating chambers 100, preventing air cross-contamination between the two coating chambers 100, and allowing the glass substrate to pass smoothly.

[0051] like Figures 5 to 7 As shown, the gas isolation device also includes a lifting component 2, which is arranged on the transmission platform 1. The lifting component 2 includes a driving member 21 and multiple lifting support members 22. The lifting support member 22 includes a rotating end 222 and a supporting end 221. The rotating end 222 is rotatably connected to the transmission platform 1. The driving member 21 is configured to drive the multiple lifting support members 22 to rotate. The first air isolation plate 3 is arranged above the transmission platform 1, and the supporting end 221 is in sliding contact with the first air isolation plate 3.

[0052] The operator only needs to drive the multiple lifting support members 22 supporting the first air isolation plate 3 to rotate through the driving member 21 of the lifting assembly 2 outside the air isolation chamber, that is, adjust the height of the supporting end 221 of the lifting support member 22, so as to change the height of the first air isolation plate 3 and achieve the purpose of adjusting the distance between the first air isolation plate 3 and the glass on the transmission platform 1, thereby ensuring that when glass of different thicknesses passes through the gas isolation device, the gas isolation device can provide better air isolation effect.

[0053] This gas isolation device can adjust the height of the first gas isolation plate 3 via a driver 21 without shutting down the machine, thereby achieving a better gas isolation effect and reducing equipment and energy costs. This coating production line can use the gas isolation device to ensure gas isolation between two adjacent coating chambers, preventing gas cross-contamination and ensuring the required gas isolation coefficient for glass of varying thicknesses.

[0054] like Figure 1 、 Figure 2 、 Figure 7 and Figure 8 As shown, a sidewall 102 is positioned between the air barrier chamber 101 and the coating chamber 100. The transfer platform 1 is spaced apart from the sidewall 102 to ensure smooth passage of the glass substrate through the air barrier chamber 101. To ensure effective air isolation within the air barrier chamber 101, the sidewall 102 is provided with an air barrier 103. The air barrier 103 has an air barrier protrusion 1031 projecting toward the first air barrier plate 3. The air barrier protrusion 1031 seals or loosely engages with the first air barrier plate 3. The air barrier 103 prevents or reduces the risk of gas entering the space above the air barrier plate through the gap between the first air barrier plate 3 and the sidewall 102, leading to gas cross-contamination above the air barrier plate. The air barrier protrusion 1031 ensures a substantially linear fit between the air barrier 103 and the first air barrier plate 3, making it easier for the air barrier 103 to achieve an air barrier effect. This avoids the need for a large mating area between the air barrier 103 and the first air barrier plate 3, which would result in high processing requirements and increased costs.

[0055] It is understandable that the air barrier 103 cannot completely prevent gas from entering the space above the first air barrier plate 3. In order to reduce the possibility of gas passing through the space above the air barrier plate and causing gas cross-talk, thereby affecting the coating effect, the gas isolation device also includes a second air barrier plate 4. Two partition plates 33 are arranged above the first air barrier plate 3. The second air barrier plate 4 is sealed and connected to the inner wall of the air barrier cavity 101. The bottom end of the second air barrier plate 4 is arranged between the two partition plates 33.

[0056] The second air barrier plate 4 can divide the space above the first air barrier plate 3 into two areas, and since the bottom end of the second air barrier plate 4 is arranged between the two partition plates 33, the gas in the two areas is difficult to pass through the second air barrier plate 4, further reducing the possibility of gas cross-talk between the two adjacent coating cavities 100, thereby obtaining a better air barrier effect and reducing equipment costs and energy consumption costs.

[0057] like Figure 5 and Figure 6 As shown, the driving member 21 is a screw. The lifting assembly 2 includes sliders 23 and connecting rods 24, each corresponding to a plurality of lifting supports 22. The screw passes through the sliders 23 and is threadedly connected to them. The ends of the connecting rod 24 are pivotally connected to the sliders 23 and the lifting supports 22, respectively. The screw is arranged along a second direction (direction Y in the figure), which is required to be arranged at an angle to the first direction. To facilitate operator adjustment, the second direction is perpendicular to the first direction.

[0058] The operator rotates the screw to move the slider 23 in the second direction, thereby driving the connecting rod 24. Driven by the connecting rod 24, the lifting support 22 rotates about the rotating end 222, thereby changing the height of the support end 221 and adjusting the height of the first air baffle 3. While the operator can precisely adjust the distance of the slider 23 by controlling the number of turns of the screw, the screw also acts as a decelerator, slowing the movement of the slider 23. This ensures smooth movement of the slider 23 and improves the accuracy of adjusting the position of the slider 23.

[0059] like Figure 6 As shown, in order to ensure the stability of the screw and provide a fixed position for the lifting support 22, the transfer platform 1 is fixed with multiple fixing parts 12, and the multiple fixing parts 12 are pivotally connected with the multiple connecting rods 24 one by one. The screw is passed through the multiple fixing parts 12 and is rotatably connected with the multiple fixing parts 12.

[0060] It's worth noting that when the screw rotates, the slider 23 may rotate with it to a certain extent, affecting the rotation angle of the corresponding lifting support 22 and the adjustment accuracy of the first air baffle 3. To address this issue, the transfer platform 1 is equipped with multiple anti-rotation pads 13. The sliders 23 have anti-rotation surfaces. The anti-rotation surfaces of the multiple sliders 23 correspond to the anti-rotation pads 13 one by one and slide in abutment with them.

[0061] The slider 23 is in contact with the anti-rotation pad 13 through the anti-rotation plane, so that the slider 23 can only move in a straight line without rotating. Therefore, when the operator rotates the screw at this time, the moving distance of the slider 23 can be guaranteed to be accurate, thereby ensuring the accuracy of the height adjustment of the first air baffle 3.

[0062] like Figure 6 As shown, the support end 221 of the lifting support member 22 is rotatably provided with a roller 25, which rolls against the first air baffle plate 3. The provision of the roller 25 changes the relative movement between the lifting support member 22 and the first air baffle plate 3 from sliding contact to rolling contact during rotation, reducing wear and noise while improving precision.

[0063] Furthermore, to prevent wear of the first air baffle plate 3 due to friction with the lift support 22 or rollers 25, which could affect the positioning accuracy of the lift support 22, the first air baffle plate 3 is provided with an abutment plate corresponding to each lift support 22. The rollers 25 of the lift support 22 roll against the corresponding abutment plate. The abutment plates can be made of wear-resistant and high-strength materials, thereby reducing precision issues caused by wear and facilitating replacement. Furthermore, due to their small size, the abutment plates are relatively inexpensive, effectively improving the precision of the first air baffle plate 3 at a low cost.

[0064] like Figure 3 and Figure 7 As shown, the first air baffle 3 includes a top plate 31 and a bottom plate 32. The bottom plate 32 includes an adjusting portion 321 and a fixing portion 322. The fixing portion 322 is fixedly connected to the top plate 31. The adjusting portion 321 is located below the top plate 31 and is spaced apart from the top plate 31. The supporting end 221 of the lifting support member 22 slides and abuts against the fixing portion 322.

[0065] In other words, the cross-section of the bottom plate 32 is an inverted "J" shape. This structure allows the bottom plate 32 to be supported by the lifting support 22 while ensuring that the adjustment portion 321 is as close as possible to the transmission assembly, thereby providing space for the installation of the lifting assembly 2. At the same time, the top plate 31 ensures that the upper surface of the first air baffle 3 is flat, allowing the installation of the partition plate 33 to ensure the separation of the space above the first air baffle 3.

[0066] It is worth noting that since the lifting assembly 2 is arranged at one end of the first air barrier plate 3, in order to ensure the force balance of the first air barrier plate 3 when adjusting the first air barrier plate 3 and avoid tilting of the first air barrier plate 3, the gas isolation device includes two groups of lifting assemblies 2, and the two groups of lifting assemblies 2 are respectively arranged at both ends of the transmission platform 1 along the first direction, and the multiple lifting support members 22 of each group of lifting assemblies 2 are arranged at intervals along the second direction.

[0067] This structure can support the first air baffle plate 3 from both ends in the first direction. At the same time, the multiple lifting support members 22 of each lifting assembly 2 can also support multiple positions of the first air baffle plate 3 along the second direction, greatly improving the stability of the first air baffle plate 3 during the lifting process.

[0068] like Figure 2 and Figure 5 As shown, the gas isolation device also includes a transmission assembly 5, which includes a handle 51 and a transmission member 52. The handle 51 is transmission-connected to the driving member 21 of one group of lifting assemblies 2, and the transmission member 52 is transmission-connected to the driving members 21 of two groups of lifting assemblies 2 so that the driving members 21 of the two groups of lifting assemblies 2 move synchronously.

[0069] Among them, through the transmission connection of the transmission assembly 5, the screws of the two groups of lifting assemblies 2 rotate synchronously, which can ensure that the rotation direction and angle of the multiple lifting support members 22 of the two groups of lifting assemblies 2 are exactly the same, thereby ensuring the stability of the first air baffle 3 during the lifting process.

[0070] In this embodiment, the transmission member 52 is a synchronous belt. The screws of each lifting assembly 2 are sleeved with synchronous wheels. The synchronous belt is tensioned and meshed by the synchronous wheels of the two screws, thereby ensuring that the rotation speeds of the two screws are the same.

[0071] In this embodiment, the handle 51 is sealed to the air-isolating cavity 101 to prevent the external space from entering the air-isolating cavity 101. Specifically, the sealed connection between the handle 51 and the air-isolating cavity 101 is achieved by magnetic fluid.

[0072] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A gas isolation device, characterized in that: include: A transmission platform (1), wherein the transmission platform (1) is provided with a transmission component, the transmission platform (1) is configured to carry a piece to be coated, and the transmission component is configured to transmit the piece to be coated along a first direction; A lifting assembly (2) is provided on the transmission platform (1), the lifting assembly (2) comprises a driving member (21) and a plurality of lifting support members (22), the lifting support member (22) comprises a rotating end (222) and a supporting end (221), the rotating end (222) is rotatably connected to the transmission platform (1), and the driving member (21) is configured to drive the plurality of lifting support members (22) to rotate; A first air separation plate (3), wherein the first air separation plate (3) is arranged above the transmission platform (1), and the support end (221) is in sliding contact with the first air separation plate (3) to adjust the distance between the first air separation plate (3) and the part to be coated.

2. The gas isolation device according to claim 1, characterized in that The driving member (21) is a screw rod, and the lifting assembly (2) includes a slider (23) and a connecting rod (24) corresponding to the plurality of lifting support members (22) one by one. The screw rod is passed through the slider (23) and is threadedly connected to the slider (23). The two ends of the connecting rod (24) are pivotally connected to the slider (23) and the lifting support member (22) respectively.

3. The gas isolation device according to claim 2, characterized in that The transmission platform (1) is fixedly provided with a plurality of fixing members (12), the plurality of fixing members (12) are pivotally connected with the plurality of connecting rods (24) in a one-to-one correspondence, and the screw rod is passed through the plurality of fixing members (12) and is rotatably connected with the plurality of fixing members (12).

4. The gas isolation device according to claim 2, characterized in that A plurality of anti-rotation pads (13) are provided on the transmission platform (1), and the slider (23) has an anti-rotation plane. The anti-rotation planes of the plurality of sliders (23) correspond one-to-one to the plurality of anti-rotation pads (13) and are in sliding contact with each other.

5. The gas isolation device according to claim 1, characterized in that A roller (25) is rotatably provided at the support end (221) of the lifting support member (22), and the roller (25) is in rolling contact with the first air-isolating plate (3).

6. The gas isolation device according to claim 1, characterized in that The first air-blocking plate (3) includes a top plate (31) and a bottom plate (32), the bottom plate (32) includes an adjusting portion (321) and a fixing portion (322), the fixing portion (322) is fixedly connected to the top plate (31), the adjusting portion (321) is located below the top plate (31) and is spaced apart from the top plate (31), and the supporting end (221) of the lifting support member (22) is in sliding contact with the fixing portion (322).

7. The gas isolation device according to any one of claims 1 to 6, characterized in that: The gas isolation device comprises two groups of lifting assemblies (2), the two groups of lifting assemblies (2) being respectively arranged at two ends of the transmission platform (1) along the first direction, the plurality of lifting support members (22) of each group of lifting assemblies (2) being arranged at intervals along a second direction, and the second direction being arranged at an angle to the first direction.

8. The gas isolation device according to claim 7, characterized in that: The gas isolation device further comprises a transmission assembly (5), the transmission assembly comprising a handle (51) and a transmission member (52), the handle (51) being transmission-connected to the driving member (21) of one group of the lifting assemblies (2), and the transmission member (52) being transmission-connected to the driving members (21) of two groups of the lifting assemblies (2), so that the driving members (21) of the two groups of the lifting assemblies (2) move synchronously.

9. A coating production line, characterized in that: The gas isolation device comprises the gas isolation device according to any one of claims 1 to 8, and further comprises at least two coating cavities (100), wherein two adjacent coating cavities (100) are connected via an air isolation cavity (101), and the gas isolation device is arranged in the air isolation cavity (101), and the first air isolation plate (3) can adjust the air isolation effect between the two adjacent coating cavities (100).

10. The coating production line according to claim 9, characterized in that: The gas isolation device further comprises a second gas isolation plate (4), two partition plates (33) spaced apart are arranged above the first gas isolation plate (3), the second gas isolation plate (4) is sealedly connected to the inner wall of the gas isolation cavity (101), and the bottom end of the second gas isolation plate (4) is arranged between the two partition plates (33).

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