Metal anti-corrosion coloring spraying device with uniform spraying function

Abstract

The invention relates to the technical field of nozzles, and discloses a metal anti-corrosion coloring spraying device with a uniform spraying function, which comprises a connecting pipe, a splitter plate and a caliber adjusting assembly, the connecting pipe comprises a connecting part and a pressure equalizing part, and the caliber of the pressure equalizing part is gradually reduced in the direction away from the connecting part; the splitter plate comprises a sealing part and a filter plate, the sealing part is connected with the pressure equalizing part, and the filter plate is arranged in the sealing part; the caliber adjusting assembly comprises a shell, an adjusting plate and an adjusting assembly, a cavity is formed in the shell, the shell comprises a top plate, a bottom plate, a first side plate, a second side plate, a third side plate and a fourth side plate, a plurality of through holes are formed in the top plate, a sliding hole is formed in the second side plate, and the adjusting plate is slidably connected into the sliding hole in a penetrating mode; a nozzle is defined between one side of the adjusting plate and the first side plate, the third side plate and the fourth side plate, and the adjusting assembly is used for driving the adjusting plate to slide. According to the invention, the coating can obtain larger shearing force at the narrow nozzle, so that more uniform atomized coating is generated.

Description

Technical Field

[0001] This invention relates to the field of nozzle technology, and more specifically, to a metal anti-corrosion coloring spraying device with uniform spraying function. Background Technology

[0002] Anti-corrosion coatings are coatings sprayed onto the surface of metal objects to isolate the surface of the metal objects from the surrounding medium, thereby preventing the metal objects from being corroded. They have good electrical insulation and water resistance. In order to give metal sheets a longer service life, anti-corrosion coatings are usually sprayed onto the surface of metal sheets.

[0003] In related technologies, existing spraying devices often result in uneven spray patterns—"thicker in the middle, thinner at the edges" or "striped"—when the paint is sprayed from the corresponding nozzle. This not only affects the uniformity and aesthetics of the metal anti-corrosion coloring layer but may also lead to poor local anti-corrosion performance and shorten the service life of metal components. Therefore, we propose a metal anti-corrosion coloring spraying device with uniform spraying function. Summary of the Invention

[0004] This invention provides a metal anti-corrosion coloring spraying device with uniform spraying function, which solves the technical problem in related technologies that the uneven pressure of the coating at the nozzle usually results in a spray effect that is "thick in the middle and light on both sides" or "striped". This not only affects the uniformity and aesthetics of the metal anti-corrosion coloring layer, but may also lead to poor local anti-corrosion effect and shorten the service life of metal components.

[0005] This invention provides a metal anti-corrosion coloring spraying device with uniform spraying function, including a connecting pipe comprising: a connecting part and a pressure equalizing part, wherein the connecting part and one side of the pressure equalizing part are connected, and the diameter of the pressure equalizing part gradually decreases in the direction away from the connecting part; a flow divider comprising: an annular sealing part and a filter plate, wherein the sealing part is concentrically arranged with the pressure equalizing part, and one side of the sealing part is connected to the other side of the pressure equalizing part, and the filter plate is disposed inside the sealing part and concentrically arranged with the sealing part; and a diameter adjustment assembly comprising: a housing, an adjustment plate, and an adjustment component, wherein the housing is provided with a cavity, and the housing comprises: a top plate, a bottom plate, and a first side plate. The first, third, and fourth side plates are provided. The top plate has multiple through holes that communicate with the filter plate. The top plate is connected to the other side of the sealing part. The first, third, second, and fourth side plates are arranged in parallel relative to each other. The first and fourth side plates are connected end to end. The top of the first and fourth side plates are all connected to the top plate. The bottom of the first and third side plates are all connected to the bottom plate. The second side plate has a sliding hole. The adjusting plate slides through the sliding hole. One side of the adjusting plate defines the nozzle between the first, third, and fourth side plates. The adjusting assembly is set on the bottom plate to drive the adjusting plate to slide.

[0006] As a further improvement of the present invention, the adjusting assembly includes: a screw, a connecting plate, and two limiting plates. One end of the screw is threadedly connected to the base, and the axial direction of the screw is the same as the moving direction of the adjusting plate. One side of the connecting plate is fixedly connected to the other side of the adjusting plate, and the other side of the connecting plate is rotatably connected to the screw. Both limiting plates are fixedly connected to the screw and are respectively disposed on both sides of the connecting plate for limiting the connecting plate.

[0007] As a further improvement of the present invention, the adjustment assembly further includes: a second screw, a second connecting plate, and two second limiting plates. One end of the second screw is threadedly connected to the base, and the axial direction of the second screw is the same as the moving direction of the adjustment plate. One side of the connecting plate is fixedly connected to the other side of the adjustment plate, and the other side of the connecting plate is rotatably connected to the second screw. Both second limiting plates are fixedly connected to the second screw and are respectively disposed on both sides of the connecting plate for limiting the second connecting plate.

[0008] As a further improvement of the present invention, the screw one and the screw two rotate in opposite directions within the base plate.

[0009] As a further improvement of the present invention, the housing further includes: an annular connecting seat disposed on the top of the top plate. The connecting seat is concentrically disposed with the sealing part, and the inner diameter of the connecting seat is the same as the inner diameter of the sealing part. The side of the connecting seat away from the top plate is fixedly connected to the other side of the sealing part.

[0010] As a further improvement of the present invention, an annular sealing groove 1 is provided on the other side of the pressure equalizing part, an annular sealing groove 2 is provided on one side of the sealing part, and a sealing ring 1 is provided in the sealing groove 1 and the sealing groove 2, and / or an annular sealing groove 3 is provided on the other side of the sealing part, and an annular sealing groove 4 is provided on one side of the connecting seat, and a sealing ring 2 is provided in the sealing groove 3 and the sealing groove 4.

[0011] As a further improvement of the present invention, the aperture of the filter plate gradually increases in the radial direction from the inside to the outside; and / or the diameter of the through hole on the top plate gradually increases in the direction from the inside to the outside.

[0012] As a further improvement of the present invention, one side of the adjusting plate is provided with an inclined portion and a straight portion, the inclined portion is connected to the straight portion, the straight portion is provided near the edge of the nozzle, and the side of the inclined portion away from the straight portion is inclined toward the side away from the fourth side plate.

[0013] As a further improvement of the present invention, the metal anti-corrosion coloring spraying device further includes: two shielding components, which are symmetrically arranged on both sides of the nozzle and are used to adjust the spraying range on both sides of the nozzle. Each component includes: a shielding plate and a driving component. The shielding plate includes: a shielding part and a connecting block. The shielding part and the connecting block are connected. The driving component is connected to the connecting block to selectively drive the shielding part to rotate.

[0014] As a further improvement of the present invention, the drive assembly includes: a housing, a worm gear, a worm, a rotating shaft, and a knob. The housing is fixedly connected to the housing. The rotating shaft and the worm are both disposed inside the housing and are rotatably connected to the housing. The axis of the rotating shaft is perpendicular to the axis of the worm. The worm gear is fixedly connected to the rotating shaft and cooperates with the worm. One end of the worm extends out of the housing and is fixedly connected to the knob.

[0015] The beneficial effects of this invention are as follows: 1. By setting up a pressure equalization section, the dynamic pressure of the coating at each position tends to be relatively balanced when the coating passes through the pressure equalization section. By setting up a flow divider, a concentrated coating flow in the connecting pipe can be divided into multiple small, independent sub-jet streams. This can break the integrity of the coating fluid and is conducive to the uniform spraying of the coating in the future. Then, by setting up a flat receiving cavity and nozzle, the coating can obtain a large shear force at the narrow nozzle, thereby producing a more uniform atomized coating.

[0016] 2. In this invention, the nozzle is defined by one side of the adjusting plate extending into the cavity and between the first side plate, the third side plate and the fourth side plate. The size of the nozzle can be controlled by moving the adjusting plate through the adjusting component, thereby controlling the spray flow rate and spray thickness of the nozzle, making it more flexible to use.

[0017] 3. The present invention provides a shielding component on each side of the nozzle, which drives the shielding plate to rotate through the drive component, thereby flexibly limiting the spraying range of the nozzle, thereby improving the spraying accuracy and reducing paint waste. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a metal anti-corrosion coloring spraying device with uniform spraying function according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the main structure of a metal anti-corrosion coloring spraying device with uniform spraying function according to an embodiment of the present invention; Figure 3 This is a side view of a metal anti-corrosion coloring spraying device with uniform spraying function according to an embodiment of the present invention; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is a top view schematic diagram of a metal anti-corrosion coloring spraying device with uniform spraying function according to an embodiment of the present invention; Figure 6 This is a first side view cross-sectional structural schematic diagram of a metal anti-corrosion coloring spraying device with uniform spraying function according to an embodiment of the present invention; Figure 7 yes Figure 6 Enlarged view of point B in the middle; Figure 8 This is a second side cross-sectional view of a metal anti-corrosion coloring spraying device with uniform spraying function according to an embodiment of the present invention. Figure 9 yes Figure 8 Enlarged view of point C in the middle; Figure 10 yes Figure 8 Enlarged view of point D in the middle.

[0019] In the diagram: 1. Connecting pipe; 11. Connecting part; 12. Pressure equalizing part; 2. Diverter plate; 21. Sealing part; 22. Filter plate; 3. Diameter adjustment assembly; 31. Housing; 311. Top plate; 3111. Through hole; 312. Bottom plate; 313. First side plate; 314. Second side plate; 3141. Sliding hole; 315. Third side plate; 316. Fourth side plate; 317. Connecting seat; 32. Adjusting plate; 321. Inclined part; 322. Straight part 33. Adjustment assembly; 331. Screw 1; 332. Connecting plate 1; 333. Limiting plate 1; 334. Screw 2; 335. Connecting plate 2; 336. Limiting plate 2; 34. Nozzle; 4. Sealing ring 1; 5. Sealing ring 2; 6. Shielding assembly; 61. Shielding plate; 611. Shielding part; 612. Connecting block; 62. Drive assembly; 621. Housing; 622. Worm gear; 623. Worm; 624. Rotating shaft; 625. Knob. Detailed Implementation

[0020] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0021] like Figures 1-10As shown, a metal anti-corrosion coloring spraying device with uniform spraying function includes: a connecting pipe 1, a flow divider 2, and an orifice adjustment component 3. The connecting pipe 1 is mainly used to introduce the spraying medium, i.e., paint, and can be connected to an external supply system, for example, to a paint tank. The flow divider 2 is mainly used to divide the paint within the connecting pipe 1. The orifice adjustment component 3 is mainly used to adjust the final spraying range of the paint.

[0022] In addition, such as Figure 1 As shown, the connecting pipe 1 includes a connecting part 11 and a pressure equalizing part 12. The pressure equalizing part 12 is fixedly connected to one side of the connecting part 11. Of course, the pressure equalizing part 12 and the connecting part 11 can also be designed as an integrated unit. The connecting part 11 is the inlet end of the connecting pipe 1 and is used to connect to an external feeding system. The diameter of the pressure equalizing part 12 gradually decreases in the direction away from the connecting part 11. That is, the diameter of the pressure equalizing part 12 near the connecting part 11 is larger than the diameter of the end of the pressure equalizing part 12 away from the connecting part 11. According to Bernoulli's principle, when the paint flows from a large cross-section to a small cross-section, the flow velocity increases, but the static pressure decreases. This actively designed pressure reduction process can equalize the uneven pressure distribution caused by the friction between the paint and the inner wall of the connecting pipe 1 during the flow process. Thus, at the end of the pressure equalizing part 12, the dynamic pressure of the paint at each position tends to be relatively balanced, which is beneficial for more uniform paint spraying in the future. It should be noted that the specific dimensions of the pressure equalizing part 12 need to be set according to the actual working conditions.

[0023] In addition, such as Figure 3 and Figure 5 As shown, the flow divider 2 is used to divide the sprayed material. The flow divider 2 includes an annular sealing part 21 and a filter plate 22. The sealing part 21 mainly functions as a seal. The sealing part 21 is concentrically arranged with the pressure equalization part 12 of the connecting pipe 1, and one side of the sealing part 21 is fixedly connected to the other side of the pressure equalization part 12. The filter plate 22 is fixedly connected inside the sealing part 21 and is concentrically arranged with the sealing part 21. The filter plate 22 mainly functions as a flow divider. The filter plate 22 can be a cylindrical structure, and the diameter of the filter plate 22 is the same as the inner diameter of the sealing part 21.

[0024] When in use, after the paint passes through the equalization section 12, it will rush towards the filter plate 22. The multiple filter holes on the filter plate 22 can divide the concentrated paint flow in the connecting pipe 1 into multiple small, independent sub-jet streams. This can disrupt the integrity of the paint fluid and is beneficial for the uniform spraying of the paint in the future.

[0025] Furthermore, from the inside out along the radial direction of the filter plate 22, the aperture of the filter plate 22 gradually increases. That is to say, the aperture size of the filter holes closer to the edge of the filter plate 22 is larger. This gradual aperture design enables the flow distribution of the coating in the radial direction to be more uniform when the coating passes through the filter holes on the filter plate 22, thereby helping to form a more uniform coating spray.

[0026] As an optional embodiment, such as Figure 8 As shown, an annular sealing groove 1 is provided on the other side of the pressure equalizing part 12, and an annular sealing groove 2 is provided on one side of the sealing part 21. A sealing ring 4 is installed within both sealing grooves 1 and 2. The sealing grooves 1 and 2 primarily serve an installation function, while the sealing ring 4 primarily serves a sealing function. The sealing ring 4 seals the gap between the pressure equalizing part 12 and the sealing part 21, thereby maintaining pressure and sealing the coating during its flow. It should be noted that the separate design of the pressure equalizing part 12 and the sealing part 21 facilitates the disassembly of the sealing part 21, making it easier to clean and replace the filter plate 22, thus enhancing its usability.

[0027] In addition, such as Figures 1-4 ,,as well as Figure 8 and Figure 9 As shown, the aperture adjustment assembly 3 includes: a housing 31, an adjustment plate 32, and an adjustment component 33. The housing 31 has an internal cavity, which mainly serves to install and contain the paint.

[0028] The housing 31 includes a top plate 311, a bottom plate 312, a first side plate 313, a second side plate 314, a third side plate 315, and a fourth side plate 316. The top plate 311 has multiple through holes 3111 communicating with the filter holes on the filter plate 22, allowing the coating material to enter the cavity through these holes after passing through the filter plate 22. The top plate 311 is fixedly connected to the other side of the sealing part 21, thus forming a sealed flow channel between the pressure equalization part 12, the flow divider 2, and the top plate 311. The first side plate 313 and the third side plate 315 are arranged relatively parallel, as are the second side plate 314 and the fourth side plate 316. The first side plate 313, the second side plate 314, the third side plate 315, and the fourth side plate 316 are connected end-to-end and fixedly connected, forming the sidewalls of the housing 31. The tops of the first side plate 313 to the fourth side plate 316 are all fixedly connected to the top plate 311, and the bottoms of the first side plate 313 to the third side plate 315 are all fixedly connected to the bottom plate 312. It should be noted that the size of the bottom plate 312 is smaller than the size of the top plate 311, and the fourth side plate 316 does not contact the bottom plate 312. That is to say, there is a gap between the fourth side plate 316 and the bottom plate 312 to facilitate the subsequent spraying of paint.

[0029] Furthermore, the diameter of the through holes 3111 on the top plate 311 gradually increases from the inside out. That is, the diameter of the holes is larger closer to the edge of the top plate 311. This gradual diameter design allows for a more uniform flow distribution of the paint through the through holes 3111 on the top plate 311, thus contributing to a more uniform paint spray. The specific dimensions of the through hole diameter 3111 can be set according to actual working conditions.

[0030] A sliding hole 3141 is provided on the second side plate 314, which mainly serves to guide and orient the object. An adjusting plate 32 is slidably connected through the sliding hole 3141; that is, part of the adjusting plate 32 is inside the cavity, and the other part extends outside the housing 31. The side of the adjusting plate 32 extending into the cavity defines a narrow nozzle 34 between it and the first side plate 313, the third side plate 315, and the fourth side plate 316. In the direction of movement of the adjusting plate 32, the cross-sectional dimensions of the adjusting plate 32 are the same as those of the sliding hole 3141, which improves the sealing between the adjusting plate 32 and the second side plate 314.

[0031] It should be noted that a receiving cavity can be defined between the adjusting plate 32 and the top plate 311. The paint can enter the receiving cavity after passing through the through hole 3111 and then be sprayed out from the nozzle 34. In addition, the two sides of the adjusting plate 32 are slidably connected to the inner walls of the first side plate 313 and the third side plate 315, respectively. This can improve the stability of the movement of the adjusting plate 32 and at the same time, improve the sealing of the receiving cavity, so that the paint inside the receiving cavity can only be sprayed out through the nozzle 34.

[0032] Furthermore, the receiving cavity can be a flat spatial structure, so that after the paint enters the receiving cavity through the through hole 3111, it will collide and mix with each other to form a more uniform and stable paint flow layer. Moreover, the paint speed will decrease and the pressure will increase. When the paint is sprayed out from the narrow nozzle 34, a large shear force will be generated at the nozzle 34, which can make the paint form finer and more uniform particles, which is conducive to better atomization of the paint.

[0033] When it is necessary to adjust the size of the nozzle 34 during use, the adjusting component 33 is used to drive the adjusting plate 32 to move within the sliding hole 3141, thereby adjusting the distance between the adjusting plate 32 and the fourth side plate 316, and thus adjusting the size of the nozzle 34. This allows for control of the amount of paint sprayed and the thickness of the paint sprayed onto the product, making the use more flexible.

[0034] Specifically, such as Figure 10As shown, the adjusting assembly 33 is mounted on the base plate 312 and is used to drive the adjusting plate 32 to slide. The adjusting assembly 33 includes: a screw 331, a connecting plate 332, and two limiting plates 333. One end of the screw 331 is threadedly connected to the base plate 312, and the axial direction of the screw 331 is the same as the moving direction of the adjusting plate 32. One side of the connecting plate 332 is fixedly connected to the other side of the adjusting plate 32, that is, to the side of the adjusting plate 32 that extends outside the housing 31, and the other side of the connecting plate 332 is rotatably connected to the screw 331. Both limiting plates 333 are fixedly connected to the screw 331, and the two limiting plates 333 are respectively disposed on both sides of the connecting plate 332 to limit the connecting plate 332 in the axial direction of the screw 331.

[0035] When it is necessary to adjust the size of the nozzle 34 during use, the screw 331 is rotated. The screw 331 will rotate in or out of the base plate 312. During the rotation, the screw 331 will drive the connecting plate 332 to move through the two limit plates 333, and then drive the adjusting plate 32 to move through the connecting plate 332.

[0036] Furthermore, such as Figure 4 As shown, the adjusting assembly 33 further includes: a second screw 334, a second connecting plate 335, and two second limiting plates 336. One end of the second screw 334 is threadedly connected to the base plate 312, and the axial direction of the second screw 334 is the same as the moving direction of the adjusting plate 32. One side of the second connecting plate 335 is fixedly connected to the other side of the adjusting plate 32, that is, fixedly connected to the side of the adjusting plate 32 that extends outside the housing 31, and the other side of the second connecting plate 335 is rotatably connected to the second screw 334. Both second limiting plates 336 are fixedly connected to the second screw 334, and the two limiting plates are respectively arranged on both sides of the second connecting plate 335 to limit the second connecting plate 335 in the axial direction of the second screw 334. The second connecting plate 335 and the first connecting plate 332 are symmetrically arranged on the adjusting plate 32.

[0037] When it is necessary to adjust the size of the nozzle 34 during use, the screw 334 is rotated. The screw 334 will rotate in or out of the base plate 312. During the rotation, the screw 334 will drive the connecting plate 335 to move through the two limit plates 336, and then drive the adjusting plate 32 to move through the connecting plate 335.

[0038] Thus, by having the connecting plate 332 and the connecting plate 335 work together to move the adjusting plate 32, the movement of the adjusting plate 32 can be made more stable.

[0039] It should be noted that screw 331 and screw 334 rotate in opposite directions within the base plate 312. This reverse rotation design restricts the free movement of screws 331 and 334, thereby improving the stability of the position of the adjusting plate 32.

[0040] In addition, such as Figure 3 As shown, the housing 31 also includes an annular connecting seat 317, which is disposed on the top of the top plate 311 and can be integrated into the design. The connecting seat 317 is concentrically arranged with the sealing part 21, and the inner diameter of the connecting seat 317 is the same as that of the sealing part 21. The side of the connecting seat 317 away from the top plate 311 is fixedly connected to the other side of the sealing part 21. The connecting seat 317 mainly serves to facilitate connection, allowing the sealing part 21 and the top plate 311 to be connected. The connection method can be bolt fixing, which facilitates replacement and maintenance.

[0041] Furthermore, such as Figure 8 As shown, an annular sealing groove three is provided on the other side of the sealing part 21, and an annular sealing groove four is provided on one side of the connecting seat 317. Sealing ring two 5 is disposed within sealing grooves three and four. Sealing grooves three and four primarily serve an installation function, while sealing ring two 5 primarily serves a sealing function. Sealing ring two 5 can seal the gap between the sealing part 21 and the connecting seat 317, thereby maintaining pressure and sealing the coating during its flow.

[0042] In addition, such as Figure 8 and Figure 9 As shown, the side of the adjusting plate 32 that extends into the cavity, that is, the side wall near the fourth side plate 316, is provided with an inclined portion 321 and a straight portion 322. The inclined portion 321 is connected to the straight portion 322, and the straight portion 322 is provided near the edge of the nozzle 34. The side of the inclined portion 321 away from the straight portion 322 is inclined toward the side away from the fourth side plate 316.

[0043] During use, the inclined section 321 allows the paint to enter the nozzle 34 more effectively, reducing energy loss and stabilizing the flow field, thus minimizing the generation of eddies. The straight section 322 helps to shape the final sprayed state of the paint, resulting in a more uniform flow velocity distribution.

[0044] In addition, such as Figures 1-3 and Figure 7 As shown, the metal anti-corrosion coloring spraying device also includes two shielding components 6. The two shielding components 6 are symmetrically arranged on both sides of the nozzle 34, and are used to adjust the spraying range on both sides of the nozzle 34.

[0045] Each shielding assembly 6 includes a shielding plate 61 and a drive assembly 62. The shielding plate 61 includes a shielding part 611 and a connecting block 612, which are fixedly connected. The shielding part 611 is positioned close to the nozzle 34 to better shield the side of the nozzle 34. The drive assembly 62 is connected to the connecting block 612 to selectively drive the shielding part 611 to rotate.

[0046] Specifically, the drive assembly 62 includes: a housing 621, a worm gear 622, a worm 623, a rotating shaft 624, and a knob 625. The housing 621 is fixedly connected to the housing 31. It should be noted that the two housings 621 are respectively fixedly connected to the outer walls of the first side plate 313 and the third side plate 315. The rotating shaft 624 and the worm 623 are both disposed inside their respective housings 621, and both ends of the rotating shaft 624 and the worm 623 are rotatably connected to the housing 621. The axis of the rotating shaft 624 is perpendicular to the axis of the worm 623. The worm gear 622 is fixedly connected to the rotating shaft 624 and cooperates with the worm 623. One end of the worm 623 extends outside the housing 621 and is fixedly connected to the knob 625. One end of the rotating shaft 624 extends outside the housing 621 and is fixedly connected to the connecting block 612.

[0047] In use, when it is necessary to adjust the angle of the corresponding baffle 61, the knob 625 is rotated. The rotation of the knob 625 drives the worm gear 623 to rotate, which in turn drives the worm wheel 622 to rotate. The rotation of the worm wheel 622, transmitted through the rotating shaft 624, drives the baffle 61 to rotate, thereby limiting the spray range on the corresponding side of the nozzle 34. The worm wheel 622 and worm gear 623 transmission has a self-locking property, which reduces the occurrence of free rotation of the baffle 61, thus making the position of the baffle 61 more stable.

[0048] The shielding plates 61 on both sides are independently controlled by the corresponding drive components 62, making them more flexible to use. For example, when it is necessary to spray paint on the area near the edge of the product, the shielding plate 61 on the corresponding side can be used to shield the paint and reduce the amount of paint sprayed onto the outside of the product.

[0049] The embodiments of this example have been described above. However, this example is not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms based on the guidance of this example, and all of them are within the protection scope of this example.

Claims

1. A metal anticorrosive coloring spray device having a uniform spray function, characterized by, include: A connecting pipe (1) includes a connecting part (11) and a pressure equalizing part (12), wherein the connecting part (11) and the pressure equalizing part (12) are connected on one side, and the diameter of the pressure equalizing part (12) gradually decreases in the direction away from the connecting part (11); The diverter plate (2) includes an annular sealing part (21) and a filter plate (22). The sealing part (21) is concentrically arranged with the pressure equalization part (12), and one side of the sealing part (21) is connected to the other side of the pressure equalization part (12). The filter plate (22) is disposed inside the sealing part (21) and is concentrically arranged with the sealing part (21). The aperture adjustment assembly (3) includes: a housing (31), an adjustment plate (32), and an adjustment component (33). The housing (31) has a cavity inside. The housing (31) includes: a top plate (311), a bottom plate (312), a first side plate (313), a second side plate (314), a third side plate (315), and a fourth side plate (316). The top plate (311) has multiple through holes (3111) communicating with the filter plate (22). The top plate (311) is connected to the other side of the sealing part (21). The first side plate (313) and the third side plate (315), as well as the second side plate (314) and the fourth side plate (316), are arranged in parallel relative to each other. The first side plate (313) and the fourth side plate (316) are connected end to end. The top of the first side plate (313) and the fourth side plate (316) are all connected to the top plate (311). The bottom of the first side plate (313) and the third side plate (315) are all connected to the bottom plate (312). A sliding hole (3141) is provided on the second side plate (314). The adjusting plate (32) is slidably connected through the sliding hole (3141). One side of the adjusting plate (32) defines a nozzle (34) between the first side plate (313), the third side plate (315) and the fourth side plate (316). The adjusting component (33) is set on the bottom plate (312) to drive the adjusting plate (32) to slide.

2. The metal anticorrosive coloring and spraying device with uniform spraying function according to claim 1, characterized in that, The adjustment assembly (33) includes: a screw (331), a connecting plate (332), and two limiting plates (333). One end of the screw (331) is threadedly connected to the base, and the axial direction of the screw (331) is the same as the moving direction of the adjustment plate (32). One side of the connecting plate is fixedly connected to the other side of the adjustment plate (32), and the other side of the connecting plate is rotatably connected to the screw (331). The two limiting plates (333) are fixedly connected to the screw (331) and are respectively arranged on both sides of the connecting plate to limit the connecting plate (332).

3. The metal anticorrosive coloring and spraying device with uniform spraying function according to claim 2, characterized in that, The adjustment assembly (33) further includes: a second screw (334), a second connecting plate (335), and two second limiting plates (336). One end of the second screw (334) is threadedly connected to the base, and the axial direction of the second screw (334) is the same as the moving direction of the adjustment plate (32). One side of the connecting plate is fixedly connected to the other side of the adjustment plate (32), and the other side of the connecting plate is rotatably connected to the second screw (334). The two second limiting plates (336) are fixedly connected to the second screw (334) and are respectively arranged on both sides of the connecting plate to limit the second connecting plate (335).

4. The metal anticorrosive coloring and spraying device with uniform spraying function according to claim 3, characterized in that, The screw one (331) and the screw two (334) rotate in opposite directions within the base plate (312).

5. The metal anticorrosive coloring and spraying device with uniform spraying function according to claim 1, characterized in that, The housing (31) further includes an annular connecting seat (317), which is disposed on the top of the top plate (311). The connecting seat (317) is concentrically disposed with the sealing part (21), and the inner diameter of the connecting seat (317) is the same as the inner diameter of the sealing part (21). The side of the connecting seat (317) away from the top plate (311) is fixedly connected to the other side of the sealing part (21).

6. The metal anticorrosive coloring and spraying device with uniform spraying function according to claim 5, characterized in that, An annular sealing groove 1 is provided on the other side of the pressure equalizing part (12), and an annular sealing groove 2 is provided on one side of the sealing part (21). A sealing ring 1 (4) is provided in the sealing groove 1 and the sealing groove 2. And / or, an annular sealing groove 3 is provided on the other side of the sealing part (21), and an annular sealing groove 4 is provided on one side of the connecting seat (317). A sealing ring 2 (5) is provided in the sealing groove 3 and the sealing groove 4.

7. The metal anticorrosive coloring and spraying device with uniform spraying function according to claim 1, characterized in that, Along the radial direction of the filter plate (22) from the inside out, the aperture of the filter plate (22) gradually increases; and / or in the direction from the inside out, the diameter of the through hole (3111) on the top plate (311) gradually increases.

8. The metal anticorrosive coloring and spraying device with uniform spraying function according to claim 1, characterized in that, The adjusting plate (32) has an inclined part (321) and a straight part (322) on one side. The inclined part (321) is connected to the straight part (322). The straight part (322) is located near the edge of the nozzle (34). The side of the inclined part (321) away from the straight part (322) is inclined toward the side away from the fourth side plate (316).

9. The metal anticorrosive coloring and spraying device with uniform spraying function according to claim 1, characterized in that, The metal anti-corrosion coloring spraying device further includes: two shielding components (6), which are symmetrically arranged on both sides of the nozzle (34) for adjusting the spray range on both sides of the nozzle (34). Each component includes: a shielding plate (61) and a driving component (62). The shielding plate (61) includes: a shielding part (611) and a connecting block (612). The shielding part (611) and the connecting block (612) are connected. The driving component (62) is connected to the connecting block (612) to selectively drive the shielding part (611) to rotate.

10. The metal anticorrosive coloring and spraying device with uniform spraying function according to claim 9, characterized in that, The drive assembly (62) includes: a housing (621), a worm gear (622), a worm (623), a rotating shaft (624), and a knob (625). The housing (621) is fixedly connected to the housing (31). The rotating shaft (624) and the worm (623) are both located inside the housing (621) and are rotatably connected to the housing (621). The axis of the rotating shaft (624) is perpendicular to the axis of the worm (623). The worm gear (622) is fixedly connected to the rotating shaft (624) and cooperates with the worm (623). One end of the worm (623) extends out of the housing (621) and is fixedly connected to the knob (625).

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