Uniform gas coating device

Abstract

The utility model provides a uniform gas coating device, and relates to the technical field of gas coating, the uniform gas coating device comprises a gas collection tank (1), a material inlet (11) suitable for a workpiece (3) to enter, a material outlet (12) suitable for the workpiece (3) to penetrate out and a gas outlet (13) are formed in a tank body of the gas collection tank (1), the gas outlet (13) is connected with an acting gas source (4), and acting gas in the gas collection tank (1) flows to the acting gas source (4) through the gas outlet (13); one end of the gas conveying pipe (2) is connected with the acting gas source (4), the other end of the gas conveying pipe (2) extends into the gas collecting box (1), the part, located in the gas collecting box (1), of the gas conveying pipe (2) is provided with a gas uniformizing structure (21), and acting gas in the acting gas source (4) is sprayed out from the gas uniformizing structure (21) and flows to the workpiece (3). According to the uniform gas coating device provided by the invention, the condition of action gas leakage is not easy to occur, and the cost can be saved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of gas coating, and in particular to a uniform gas coating device. BACKGROUND

[0002] The float forming process is a common glass production process, which is often used in the production of ultra-thin glass.

[0003] The output ultra-thin glass is usually transported on the production line by using conveying rollers, and in the process of conveying by using the conveying rollers, the side of the glass plate in contact with the conveying rollers will be abraded. Therefore, in the prior art, sulfur dioxide gas is usually sprayed on the side of the glass plate in contact with the conveying rollers to form a sulfur film on the side to improve the strength of the side to reduce the scratches on the plate.

[0004] The prior art disclosed in the publication No. CN207793079U discloses a cover plate glass SO2 diffusion device, which diffuses SO2 gas from the side and then slowly rises instead of directly diffusing from the lower part of the glass plate. This method can form a sulfur film on the lower part of the glass plate, but it is easy to cause SO2 leakage.

[0005] Therefore, it is necessary to design a new type of uniform gas coating device to solve the above technical problems. CONTENT OF THE INVENTION

[0006] One of the technical problems to be solved by the present disclosure is to reduce the leakage of the working gas during gas coating.

[0007] To solve the above technical problems, the present disclosure provides a uniform gas coating device, which comprises:

[0008] A gas collecting box, a material inlet suitable for the workpiece to enter, a material outlet suitable for the workpiece to pass out, and a gas outlet are formed on the box body of the gas collecting box, the gas outlet is connected with a working gas source, and the working gas in the gas collecting box flows to the working gas source through the gas outlet;

[0009] and a gas conveying pipe, one end of the gas conveying pipe is connected with the working gas source, the other end of the gas conveying pipe extends into the gas collecting box, and the part of the gas conveying pipe located in the gas collecting box is provided with a uniform gas structure, the working gas in the working gas source is sprayed out from the uniform gas structure and flows to the workpiece.

[0010] In some embodiments, the part of the gas conveying pipe located in the gas collecting box is below the workpiece, and the uniform gas structure is located on the part of the gas conveying pipe facing the workpiece.

[0011] In some embodiments, the gas collecting box further comprises a gas blocking structure, and one gas blocking structure is arranged on each of the left and right sides of the gas collecting box along the transmission direction of the workpiece, and the gas blocking structures divide the inner part of the gas collecting box into an upper chamber and a lower chamber.

[0012] In some embodiments, the air blocking structure comprises a guide plate, the guide plate gradually inclines downward from a direction away from the workpiece to a direction close to the workpiece, and an edge of the guide plate close to the workpiece is a lower side edge, a gap between the lower side edge and a side edge of the workpiece is less than or equal to a preset value, and edges of the guide plate other than the lower side edge are in abutment with inner walls of the gas collecting box.

[0013] In some embodiments, the air blocking structure comprises a guide plate, an extension plate, and a pair of side blocking plates.

[0014] The guide plate gradually inclines downward from a direction away from the workpiece to a direction close to the workpiece, and an edge of the guide plate close to the workpiece is a lower side edge, a gap between the lower side edge and a side edge of the workpiece is less than or equal to a preset value.

[0015] The box body of the gas collecting box is provided with a gap, one side of the extension plate is connected to a side of the guide plate away from the workpiece, and the other side extends out of the gas collecting box from the gap, so that the air blocking structure can move close to or away from the workpiece along a horizontal direction when the extension plate is pushed or pulled.

[0016] The pair of side blocking plates are arranged below the guide plate and are in abutment with the inner walls of the gas collecting box and can block the inlet and the outlet.

[0017] Edges of the part of the extension plate located in the gas collecting box are in abutment with the inner walls of the gas collecting box.

[0018] In some embodiments, the extension plate comprises a horizontal part extending horizontally and a vertical part extending vertically, one side of the vertical part is connected to a side of the guide plate away from the workpiece, the other side is connected to the horizontal part, and a side of the horizontal part away from the vertical part extends out of the gas collecting box from the gap.

[0019] The gap is located on the same plane as the inlet, the outlet, and the lower side edge.

[0020] In some embodiments, the gas outlet is in communication with the lower chamber, the box body of the gas collecting box is further formed with an air inlet in communication with the upper chamber and a waste gas discharge outlet, the waste gas discharge outlet is connected to a waste gas collecting device, and at least one of the air inlet and the waste gas discharge outlet is provided with an air pump to pump the gas in the upper chamber into the waste gas collecting device.

[0021] In some embodiments, the air equalizing structure comprises a plurality of air equalizing holes arranged at equal intervals.

[0022] In some embodiments, a sleeve is rotatably sleeved on the part of the gas conveying pipe located in the gas collecting box, the sleeve is provided with a plurality of air outlet grooves of different lengths, and the number of air equalizing holes matched with the air equalizing structure is controlled by rotating the sleeve to control the number of air outlet grooves.

[0023] In some embodiments, the length of the gas outlet groove matched with the gas equalizing structure is less than or equal to the width of the workpiece, and the difference between the length of the gas outlet groove and the width of the workpiece is within a preset range.

[0024] Through the above technical solution, the gas equalizing and coating device provided by the present disclosure is to enable the workpiece to complete gas coating when passing through the gas collecting box. The design of the gas collecting box makes the working gas not easy to escape from the gas collecting box during the process of gas coating, so as to avoid the situation of environmental pollution or harm to the health of workers, and the excess working gas will return to the working gas source along the gas equalizing structure for reuse, thereby reducing the loss of working gas and reducing the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0026] Figure 1 is a structural schematic view of one embodiment of the gas equalizing and coating device disclosed by the embodiments of the present disclosure;

[0027] Figure 2 is Figure 1 a sectional view in the A-A direction in figure

[0028] Figure 3 is Figure 1 a sectional view in the B-B direction in figure

[0029] Figure 4 is Figure 2 an enlarged view of the E area in figure

[0030] Figure 5 is a structural schematic view of another embodiment of the gas equalizing and coating device disclosed by the embodiments of the present disclosure;

[0031] Figure 6 is Figure 5 a sectional view in the C-C direction in figure

[0032] Figure 7 is Figure 5 a sectional view in the D-D direction in figure

[0033] Figure 8 is Figure 6 an enlarged view of the F area in figure

[0034] Explanation of reference signs:

[0035] 1, gas collecting box; 11, inlet; 12, outlet; 13, gas outlet; 14, gas blocking structure; 141, gas guide plate; 142, extension plate; 143, side blocking plate; 15, upper chamber; 16, lower chamber; 17, gas inlet; 18, exhaust gas outlet; 2, gas conveying pipe; 21, gas equalizing structure; 3, workpiece; 4, active gas source; 5, exhaust gas collecting device; 6, sleeve; 61, gas outlet groove. DETAILED DESCRIPTION

[0036] The embodiments of the present disclosure will be described in further detail below with reference to the drawings and examples. The following detailed description of the examples and the accompanying drawings are to exemplify the principles of the present disclosure, but should not be used to limit the scope of the present disclosure, which can be implemented in many different forms, not limited to the specific examples disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0037] The present disclosure provides these examples in order to make the present disclosure thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specified, the relative arrangement of components and steps, the composition of materials, numerical expressions and values set forth in these examples should be interpreted as merely exemplary, and not as a limitation.

[0038] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two.

[0039] In addition, "includes" or "contains" and similar words mean that the elements before the word encompass the elements listed after the word, and do not exclude the possibility of also encompassing other elements.

[0040] It should also be noted that, in the description of the present disclosure, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances. When it is described that a specific device is located between a first device and a second device, there can be an intermediate device between the specific device and the first device or the second device, or there can be no intermediate device.

[0041] All terms used in the present disclosure have the same meaning as understood by those skilled in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or excessively formalized sense, unless otherwise defined explicitly herein.

[0042] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0043] like Figures 1 to 8 As shown, in some embodiments, the gas equalization coating apparatus of this disclosure includes a gas collecting box 1 and a gas supply pipe 2. The gas collecting box 1 has an inlet 11 suitable for the workpiece 3 to enter, an outlet 12 suitable for the workpiece 3 to exit, and an outlet 13 formed on its body. The outlet 13 is connected to the working gas source 4 (such as a gas storage tank). The working gas in the gas collecting box 1 flows to the working gas source 4 through the outlet 13. One end of the gas supply pipe 2 is connected to the working gas source 4, and the other end of the gas supply pipe 2 extends into the gas collecting box 1. The portion of the gas supply pipe 2 located in the gas collecting box 1 is provided with a gas equalization structure 21. The working gas in the working gas source 4 is ejected from the gas equalization structure 21 and flows to the workpiece 3. It should be noted that the size of the inlet 11 and the outlet 12 should be consistent with the size of the cross section of the workpiece 3 perpendicular to the transmission direction, or at least the vertical dimensions of the inlet 11 and the outlet 12 should be consistent with the thickness of the workpiece 3, so that the working gas is not easy to escape from the inlet 11 and the outlet 12.

[0044] Based on the above design, taking workpiece 3 as an ultra-thin float glass plate and SO2 gas as the working gas, the gas equalization coating device disclosed herein is designed to enable the ultra-thin float glass plate to complete gas coating when passing through the gas collection box 1, so as to form a sulfur film layer on the surface of the ultra-thin float glass plate, thereby making the ultra-thin float glass plate more wear-resistant and less prone to scratches during subsequent transportation. The design of the gas collection box 1 ensures that SO2 gas does not easily escape from the gas collection box 1 during the gas coating process of the ultra-thin float glass plate, thus avoiding environmental pollution or harm to workers' health. Moreover, excess SO2 gas will return to the working gas source 4 through the gas equalization structure 21 for reuse, thereby reducing the loss of working gas and reducing production costs.

[0045] Taking the workpiece 3 mentioned above as an ultra-thin float glass plate, and SO2 gas as the working gas, the ultra-thin float glass plate is generally transported by conveyor rollers. Therefore, only the side of the ultra-thin float glass plate in contact with the conveyor rollers needs to be coated with the gas. Figure 2 and Figure 6 As shown, the part of the gas supply pipe 2 located inside the gas collection box 1 needs to be below the workpiece 3 and parallel to the ultra-thin float glass plate. The gas equalization structure 21 is located on the part of the gas supply pipe 2 facing the workpiece 3, and the distance between the gas equalization structure 21 and the ultra-thin float glass plate is the same at each point to ensure that the thickness of the formed coating layer is uniform.

[0046] like Figures 2 to 4As shown, the gas collecting box 1 further comprises a gas blocking structure 14, and the gas collecting box 1 is provided with one gas blocking structure 14 on each of the left and right sides in the conveying direction of the workpiece 3 (the ultra-thin float glass plate). The gas blocking structure 14 divides the interior of the gas collecting box 1 into an upper chamber 15 and a lower chamber 16 together with the workpiece 3, so that the SO2 gas can be gathered in the lower chamber 16 and is not easy to flow to the upper chamber 15. The lower surface of the ultra-thin float glass plate, i.e. the surface of the ultra-thin float glass plate in contact with the conveying roller, is directed to the lower chamber 16. Therefore, only the lower surface of the ultra-thin float glass plate will form a sulfur film, and the upper surface will not form a sulfur film, so as to reduce the loss of SO2 gas. It can be understood that the gas outlet 13 should be communicated with the lower chamber 16, so as to collect the SO2 gas gathered in the lower chamber 16 into the action gas source 4 again for recycling, so as to reduce the cost.

[0047] As shown in the drawings, Figures 5 to 8 In some embodiments, the box body of the gas collecting box 1 can further be provided with an air inlet 17 communicated with the upper chamber 15 and a waste gas outlet 18. The waste gas outlet 18 is connected with the waste gas collecting device 5 (which is a prior art and will not be described here). The air inlet 17 can be directly communicated with the outside or communicated with the protective gas source. At least one of the air inlet 17 and the waste gas outlet 18 is provided with a gas pump, so as to pump the gas in the upper chamber 15 into the waste gas collecting device 5. Therefore, a small amount of SO2 gas enters the upper chamber 15 and is also discharged into the waste gas collecting device 5. Therefore, the upper surface of the ultra-thin float glass plate is not easy to form a sulfur film, so as to ensure the cleanliness of the upper surface of the ultra-thin float glass plate.

[0048] As shown in the drawings, Figures 2 to 4 In some embodiments, the gas blocking structure 14 can be provided with a gas guide plate 141. The gas guide plate 141 is gradually inclined downward from the direction away from the ultra-thin float glass plate to the direction close to the ultra-thin float glass plate, so that the SO2 gas can flow downward under the flow guiding action of the gas guide plate 141 after contacting the gas guide plate 141, so as to continue to be in the lower chamber 16 and not to flow to the upper chamber 15. The edge of the gas guide plate 141 close to the ultra-thin float glass plate is a lower side, and the gap between the lower side and the side of the ultra-thin float glass plate is less than or equal to a preset value. The preset value can be the maximum manufacturing error value allowed by the distance from the central axis of the ultra-thin float glass plate in the conveying direction to the edge of the ultra-thin float glass plate parallel to the conveying direction. The edges of the gas guide plate 141 except the lower side are all in abutment with the inner wall of the gas collecting box 1, so as to reduce the possibility of overflow of the SO2 gas to the upper chamber 15.

[0049] As shown in the drawings, Figures 6 to 8As shown, in some embodiments, the air blocking structure 14 can also be configured to include the air guide plate 141, the extension plate 142 and a pair of side blocking plates 143, wherein the air guide plate 141 gradually inclines downward from the direction away from the workpiece 3 to the direction close to the workpiece 3, so that the SO2 gas can flow downward under the flow guiding effect of the air guide plate 141 after contacting the air guide plate 141, to continue to be in the lower chamber 16 and not easily flow to the upper chamber 15. The edge of the air guide plate 141 close to the super-thin float glass plate is a lower side, and the gap between the lower side and the side edge of the super-thin float glass plate is less than or equal to a preset value, which can be the maximum manufacturing error value allowed by the distance from the center axis of the super-thin float glass plate in the same conveying direction to the edge of the super-thin float glass plate parallel to the conveying direction.

[0050] The box body of the gas collecting box 1 is also provided with a gap, one side of the extension plate 142 is connected to the side of the air guide plate 141 away from the super-thin float glass plate, and the other side extends out of the gas collecting box 1 from the gap, so that when the extension plate 142 is pushed and pulled, the air blocking structure 14 can move close to or away from the super-thin float glass plate in the horizontal direction, that is, the air blocking structures 14 on both sides of the super-thin float glass plate can move close to or away from each other, so that the air blocking structure 14 can be adjusted according to the size of the super-thin float glass plate, to ensure that the gap between the lower side and the side edge of the super-thin float glass plate of different sizes is less than or equal to the preset value, so that the gas coating of the super-thin float glass plate of various specifications can be adapted.

[0051] The pair of side blocking plates 143 are arranged below the air guide plate 141 and abut against the inner wall of the gas collecting box 1, and can block the inlet port 11 and the outlet port 12, so that the actual use size of the inlet port 11 and the outlet port 12 can be controlled by the movement of the air blocking structure 14, so that the actual use size of the inlet port 11 and the outlet port 12 is consistent with the size of the super-thin float glass plate subjected to gas coating, thereby reducing the escape of SO2 gas and protecting the environment and reducing the threat to workers' health. In addition, the edges of the portions of the extension plate 142 located in the gas collecting box 1 abut against the inner wall of the gas collecting box 1, so as to reduce the possibility of SO2 gas overflowing into the upper chamber 15.

[0052] The extension plate 142 is configured to include a horizontal part extending horizontally and a vertical part extending vertically, one side of the vertical part is connected to the side of the air guide plate 141 away from the workpiece 3, the other side is connected to the horizontal part, and the side of the horizontal part away from the vertical part extends out of the gas collecting box 1 from the gap, and the gap, the inlet port 11, the outlet port 12 and the lower side are located on the same plane, so as to ensure that the lower side can always be in the same horizontal plane as the side edge of the super-thin float glass plate during the movement of the air blocking structure 14 caused by pushing and pulling the extension plate 142, so as to reduce the difficulty of adjusting the movement of the air blocking structure 14.

[0053] As shown in Figure 2 and Figure 4 In some embodiments, the equalizing structure 21 includes a plurality of equalizing holes arranged at equal intervals to enable the SO2 gas to flow more uniformly to the ultra-thin float glass sheet, so that the thickness of the sulfur film formed on the lower surface of the ultra-thin float glass sheet is more uniform, and the situation that the local sulfur film thickness after gas coating does not meet the standard is less likely to occur. It can be understood that a flow valve can be provided on the gas supply pipe 2 to control the distribution rate of the SO2 gas by controlling the flow valve. Under the premise that the transmission rate of the ultra-thin float glass sheet is the same, the greater the thickness of the sulfur film required, the higher the distribution rate of the SO2 gas, the smaller the thickness of the sulfur film required, the lower the distribution rate of the SO2 gas. On this basis, the higher the transmission rate of the ultra-thin float glass sheet, the higher the distribution rate of the SO2 gas, the lower the transmission rate of the ultra-thin float glass sheet, and the lower the distribution rate of the SO2 gas.

[0054] In addition, as shown in Figures 6 to 8 In some embodiments, the part of the gas supply pipe 2 located in the gas collecting box 1 is rotatably sleeved with a sleeve pipe 6, and the sleeve pipe 6 is provided with a plurality of gas outlet grooves 61 of different lengths to control the number of equalizing holes matched with the equalizing structure 21 by rotating the sleeve pipe 6, thereby being able to adjust the number of actual equalizing holes according to the size of the ultra-thin float glass sheet. For example, if the distance between each equalizing hole is 20 mm, when the width of the ultra-thin float glass sheet is 300 mm, at most 16 actual equalizing holes are required, and when the width of the ultra-thin float glass sheet is 400 mm, at most 21 actual equalizing holes are required.

[0055] In some embodiments, the length of the gas outlet groove 61 matched with the equalizing structure 21 is less than or equal to the width of the workpiece 3, and the difference between the length of the gas outlet groove 61 and the width of the workpiece 3 is within a predetermined range. For example, if the distance between each equalizing hole is 20 mm, when the width of the ultra-thin float glass sheet is 300 mm, the gas outlet groove 61 with a length of 260 mm to 300 mm can be selected to be matched with the equalizing structure 21, so that 14 to 16 actual equalizing holes are required. When the width of the ultra-thin float glass sheet is 400 mm, the gas outlet groove 61 with a length of 360 mm to 400 mm can be selected to be matched with the equalizing structure 21, so that 18 to 21 actual equalizing holes are required. It can be understood that when the two sides of the ultra-thin float glass sheet lack corresponding equalizing holes, the SO2 gas will flow to the two sides of the ultra-thin float glass sheet under the guiding action of the gas guide plate 141, so that an effective sulfur film can still be formed on the two sides of the ultra-thin float glass sheet, and the consumption of SO2 gas can be reduced.

[0056] The above lists the various possible embodiments of the uniform gas coating device of the present disclosure, and below will take the application of the uniform gas coating device to the gas coating of ultra-thin float glass plates as an example to introduce a specific embodiment of the uniform gas coating device of the present disclosure and its use method.

[0057] Take the production of only one width type of ultra-thin float glass plate thickness on the production line, and the thickness of the ultra-thin float glass plate is 0.33mm and the width is 300mm as an example.

[0058] As shown in Figures 1 to 4 , the uniform gas coating device comprises a gas collecting box 1, a gas conveying pipe 2 and an acting gas source 4.

[0059] Among them, the gas collecting box 1 can be set to 400mm long and 300mm wide, wherein the length direction of the gas collecting box 1 is perpendicular to the conveying direction of the ultra-thin float glass plate, the inlet port 11 and the outlet port 12 formed on the box body of the gas collecting box 1 are on the same horizontal plane, and the size of the two is 302mm long and 0.5mm wide, so as to correspond to the width and thickness of the ultra-thin float glass plate as much as possible, and a certain gap is reserved to not be affected by the manufacturing error of the ultra-thin float glass plate to facilitate the ultra-thin float glass plate to pass through, and a gas blocking structure 14 is arranged on the left and right sides of the conveying direction of the ultra-thin float glass plate in the gas collecting box 1, the gas blocking structure 14 is a gas guide plate 141, the gas guide plate 141 gradually inclines downward from the direction away from the ultra-thin float glass plate to the direction close to the ultra-thin float glass plate, the edge close to the ultra-thin float glass plate of the gas guide plate 141 is a lower side, the lower side is on the same horizontal plane as the inlet port 11 and the outlet port 12 or slightly lower than the inlet port 11 and the outlet port 12, and the gap between the lower side and the side edge of the ultra-thin float glass plate is less than or equal to a preset value, the preset value is the maximum manufacturing error value allowed by the distance from the central axis parallel to the conveying direction on the ultra-thin float glass plate to the edge parallel to the conveying direction of the ultra-thin float glass plate, for example, the gap is 1mm, so that the lower side is just at the end of the inlet port 11 and the outlet port 12, thereby being able to separate the inside of the gas collecting box 1 into an upper chamber 15 and a lower chamber 16 through the gas blocking structure 14 and the ultra-thin float glass plate, and the lower chamber 16 is provided with a gas outlet 13 connected with the acting gas source 4.

[0060] One end of the gas conveying pipe 2 is connected with the acting gas source 4, so as to be able to supply the SO2 gas in the acting gas source 4 into the gas collecting box 1, a gas pump can be arranged at the connection between the gas conveying pipe 2 and the acting gas source 4, so as to be able to adjust the supply rate of the SO2 gas, the other end of the gas conveying pipe 2 extends into the gas collecting box 1, the end of this end is sealed, and the part of the gas conveying pipe 2 extending into the gas collecting box 1 is provided with 14 uniform gas holes with a diameter of 4mm arranged at equal intervals of 20mm, so as to constitute a uniform gas structure, and the diameter of the gas conveying pipe 2 can be set to 50mm and can be made of a heat-resistant seamless pipe.

[0061] In use, it is necessary to check whether the gas conveying pipe 2 is blocked or leaks, so as to send a section of ultra-thin float glass sheet into the gas collecting box 1 after determining that there is no blockage and leakage, so that the ultra-thin float glass sheet can be separated with the gas blocking structure 14 into the upper chamber 15 and the lower chamber 16 of the gas collecting box 1, and then the gas pump is opened to send SO2 gas into the lower chamber 16 for a period of time, so that only SO2 gas is in the lower chamber 16, and then the conveying of the ultra-thin float glass sheet is carried out, so as to realize continuous gas coating.

[0062] So far, the embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.

[0063] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, not for limiting the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be replaced equivalently without departing from the scope and spirit of the present disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. A gas equalization coating device characterized by comprising: The utility model relates to a kind of gas distribution device, including: Gas collecting box (1), the box of the gas collecting box (1) is formed with the inlet (11) suitable for workpiece (3) to enter, the discharge port (12) suitable for the workpiece (3) to pass out and gas outlet (13), the gas outlet (13) is connected with action gas source (4), and the action gas in the gas collecting box (1) flows to the action gas source (4) via the gas outlet (13); And gas pipe (2), one end of the gas pipe (2) is connected with the action gas source (4), the other end of the gas pipe (2) extends into the gas collecting box (1), and the part of the gas pipe (2) in the gas collecting box (1) is equipped with gas equalizing structure (21), and the action gas in the action gas source (4) is sprayed from the gas equalizing structure (21) and flows to the workpiece (3).

2. The apparatus according to claim 1, wherein The part of the gas pipe (2) in the gas collecting box (1) is below the workpiece (3), and the gas equalizing structure (21) is located on the part of the gas pipe (2) towards the workpiece (3).

3. The apparatus according to claim 2, wherein The gas collecting box (1) further includes gas blocking structure (14), and the gas collecting box (1) is equipped with one gas blocking structure (14) on the left and right sides along the transmission direction of the workpiece (3), and the gas blocking structure (14) divides the inner part of the gas collecting box (1) into upper chamber (15) and lower chamber (16) with the workpiece (3).

4. The apparatus according to claim 3, wherein The gas blocking structure (14) includes gas guide plate (141), which gradually inclines downward from the direction away from the workpiece (3) to the direction close to the workpiece (3), and the edge of the gas guide plate (141) close to the workpiece (3) is a lower side, the gap between the lower side and the side of the workpiece (3) is less than or equal to a preset value, and the edges of the gas guide plate (141) except the lower side are in abutment with the inner wall of the gas collecting box (1).

5. The apparatus according to claim 3, wherein The gas blocking structure (14) includes gas guide plate (141), extension plate (142) and a pair of side baffle (143); The gas guide plate (141) gradually inclines downward from the direction away from the workpiece (3) to the direction close to the workpiece (3), and the edge of the gas guide plate (141) close to the workpiece (3) is a lower side, the gap between the lower side and the side of the workpiece (3) is less than or equal to a preset value; The box of the gas collecting box (1) is provided with a gap, one side of the extension plate (142) is connected with the side of the gas guide plate (141) away from the workpiece (3), and the other side extends out of the gas collecting box (1) from the gap, so that the gas blocking structure (14) can approach or move away from the workpiece (3) in the horizontal direction when the extension plate (142) is pushed and pulled; A pair of side baffles (143) are arranged below the gas guide plate (141), and are in abutment with the inner wall of the gas collecting box (1) and can block the inlet (11) and the discharge port (12); The edges of the part of the extension plate (142) in the gas collecting box (1) are in abutment with the inner wall of the gas collecting box (1).

6. The apparatus according to claim 5, wherein The extension plate (142) comprises a horizontally extending horizontal part and a vertically extending vertical part, one side of the vertical part is connected with a side of the gas guide plate (141) away from the workpiece (3), the other side is connected with the horizontal part, and a side of the horizontal part away from the vertical part extends out of the gas collecting box (1) from the gap; The gap is located on the same plane as the inlet (11), the outlet (12) and the lower side.

7. The apparatus according to any one of claims 3 to 6, wherein The gas outlet (13) communicates with the lower chamber (16), the box body of the gas collecting box (1) is further formed with an air inlet (17) and a waste gas outlet (18) which communicate with the upper chamber (15), the waste gas outlet (18) is connected with a waste gas collecting device (5), and at least one of the air inlet (17) and the waste gas outlet (18) is provided with an air pump to pump the gas in the upper chamber (15) into the waste gas collecting device (5).

8. The apparatus according to claim 7, wherein The uniform gas structure (21) comprises a plurality of uniformly spaced uniform gas holes.

9. The apparatus according to claim 8, wherein A sleeve (6) is rotatably sleeved on the part of the gas conveying pipe (2) located in the gas collecting box (1), a plurality of gas outlet grooves (61) with different lengths are arranged on the sleeve (6), so as to control the number of uniform gas holes matched with the uniform gas structure (21) when the sleeve (6) is rotated.

10. The apparatus according to claim 9, wherein The length of the gas outlet groove (61) matched with the uniform gas structure (21) is less than or equal to the width of the workpiece (3), and the difference between the length of the gas outlet groove (61) and the width of the workpiece (3) is within a preset range.

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