A high-gloss coated steel sheet and a method of manufacturing the same

Abstract

The application discloses a high-film-thickness galvanized steel plate coating equipment capable of reducing bubbles and a method thereof, and belongs to the technical field of galvanizing steel plates. The equipment comprises a first supporting table, a supporting frame, a second supporting table and a hot galvanizing pool. The first supporting table is provided with a first conveying assembly and a first transferring assembly. The second supporting table is provided with a second conveying assembly and a second transferring assembly. A plurality of groups of floating hangers for fixing workpieces are inserted into the first transferring assembly and the second transferring assembly. Two groups of bubble-removing assemblies are symmetrically arranged at the left side of the hot galvanizing pool. An auxiliary discharging mechanism is arranged on the left side of the supporting frame and the hot galvanizing pool and the second transferring assembly. The auxiliary discharging mechanism comprises a first discharging assembly and a second discharging assembly. The first discharging assembly is arranged on the left side of the hot galvanizing pool and the supporting frame. The second discharging assembly is arranged on the second transferring assembly. In the manner, the bubbles of the zinc layer coated on the workpieces are reduced. The second transferring assembly and the first discharging assembly can avoid the occurrence of orange peel on the coating layer of the workpieces.

Description

Technical Field

[0001] This invention relates to the field of steel plate galvanizing technology, specifically to a high-film-thickness galvanized steel plate coating equipment and method that can reduce air bubbles. Background Technology

[0002] To extend the service life of steel plates, a zinc coating is applied to the surface of the steel plates after production. Currently, the main zinc coating methods include cold galvanizing and hot-dip galvanizing. Cold galvanizing produces a thinner zinc film, while hot-dip galvanizing produces a thicker zinc film. Therefore, steel plates used in highly corrosive environments, such as steel plates with slots on the sides, are usually galvanized using hot-dip galvanizing.

[0003] For example, Chinese patent CN113106371B discloses a hot-dip galvanizing processing device. The device includes a sliding frame and a sliding mechanism. The scraper on the sliding mechanism repeatedly cleans the impurities on the surface of the solution, preventing the surface layer of zinc melt from adhering to the workpiece and causing the workpiece coating to have an orange peel effect, thereby improving the coating quality.

[0004] However, after the workpiece is placed into the molten liquid for coating using a fixture, it needs to be removed from the molten liquid. During the process of removing the workpiece from the molten liquid, it is difficult for the device to clean the surface condensed impurities in a timely manner. At the same time, there are some tiny gaps on the surface of the steel plate and at the connection with the fixture. After the steel plate is immersed in the molten liquid, it is difficult to eliminate the tiny air bubbles trapped in the tiny gaps, which causes air bubbles to appear in the coating film on the formed workpiece.

[0005] Based on this, the present invention designs a high-film-thickness galvanized steel sheet coating equipment and method that can reduce bubbles to solve the above problems. Summary of the Invention

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a high film thickness galvanized steel sheet coating equipment and method that can reduce bubbles.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A coating equipment for high-film-thickness galvanized steel sheets that can reduce bubbles includes two first support platforms symmetrically arranged, a support frame located to the left of the first support platforms, a second support platform located to the left of the support frame, and a hot-dip galvanizing bath located below the first support platforms.

[0009] The first support platform is equipped with a first conveying assembly and a first transfer assembly, and the second support platform is equipped with a second conveying assembly and a second transfer assembly; multiple sets of floating fixtures for fixing workpieces are inserted into the first transfer assembly and the second transfer assembly.

[0010] Two sets of degassing components are symmetrically installed on the right side of the hot-dip galvanizing tank; the auxiliary discharge mechanism is installed on the left side of the support frame, the hot-dip galvanizing tank, and the second transfer component.

[0011] The auxiliary discharge mechanism includes a first discharge component and a second discharge component. The first discharge component is installed on the left side of the hot-dip galvanizing tank and on the support frame, and the second discharge component is installed on the second transfer component.

[0012] Furthermore, the floating fixture includes a mounting block, an insert block, a mounting rod, a limiting block, a spring, a hanging plate, a through hole, and a fixing block. Two insert blocks are symmetrically fixedly installed on the lower side of the mounting block; the mounting rod passes through the mounting block and is slidably connected to the mounting block; a limiting block is fixedly installed on the top of the mounting rod, and a spring is fixedly installed between the limiting block and the mounting block; two hanging plates are symmetrically fixedly installed on the upper side of the mounting block, and through holes are opened on the hanging plates; a fixing block that is inserted into the slot is fixedly installed on the lower side of the mounting rod.

[0013] Furthermore, the floating fixture also includes a protrusion, which is fixedly mounted on the mounting rod and is located between the insert block and the fixing block.

[0014] Furthermore, the first transfer assembly includes a mounting plate, a positioning groove, a clearance groove, and a pressure plate. Multiple mounting plates are evenly and uniformly fixedly installed at equal intervals on the output end of the first transfer assembly. The mounting plate has a positioning groove, which is inserted into the insertion block. A clearance groove is provided in the middle of the mounting plate, through which the mounting rod passes. The pressure plate is fixedly installed on the upper side of the first support platform. The pressure plate is located on the upper side of the mounting plate and is slidably connected to the upper surface of the mounting block.

[0015] Furthermore, the second transfer assembly includes a cylinder, a moving frame, and insert rods. The cylinder is fixedly installed at the moving end of the second transfer assembly, and the moving frame is fixedly installed at the output end of the cylinder. Insert rods are symmetrically installed on both sides of the moving frame. The insert rods are inserted into through holes on two hanging plates symmetrically installed on the mounting block.

[0016] Furthermore, the debubbling assembly includes a first mounting bracket, a third motor, and a rotating block. The first mounting bracket is fixedly mounted on the outer wall of the hot-dip galvanizing tank, the third motor is fixedly mounted on the first mounting bracket, and a rotating block for striking the protrusion is fixedly mounted on the output end of the third motor.

[0017] Furthermore, the first discharge assembly includes a first motor, a transmission assembly, a first rotating roller, a second motor, and a second rotating roller. The first motor is fixedly installed on the upper side of the support frame, and the first rotating roller is rotatably installed on the lower side of the support frame. The output end of the first motor is connected to the first rotating roller via the transmission assembly. The second motor is fixedly installed on the outer wall of the hot-dip galvanizing tank, and the second rotating roller is rotatably installed on the inner wall of the hot-dip galvanizing tank. The output end of the second motor passes through the hot-dip galvanizing tank and is fixedly connected to the second rotating roller.

[0018] Furthermore, the tops of the first and second rollers are on the same plane as the surface of the molten liquid in the hot-dip galvanizing bath, with the first roller rotating to the right and the second roller rotating to the left.

[0019] Furthermore, the second discharge assembly includes a second mounting frame and a movable rod, with the top of the second mounting frame fixedly mounted on the movable frame and the bottom of the second mounting frame fixedly mounted on the movable rod.

[0020] To better achieve the objectives of this invention, the present invention also provides a method for coating high-film-thickness galvanized steel sheets with reduced air bubbles, comprising the following steps:

[0021] Step 1: The workpiece is suspended and fixed by the fixing block and the mounting rod. Then, the insert block is inserted into the positioning groove. The mounting block is supported by the mounting plate and pressed by the pressure plate to keep the mounting block stable.

[0022] Step 2: The first conveying component moves the mounting plate, which in turn moves the mounting block and mounting rod through the positioning groove and the insert block, moving the workpiece into the hot-dip galvanizing bath and immersing it in the molten metal. When the mounting rod moves to the rotating area of ​​the rotating block, the third motor drives the rotating block to rotate, which in turn strikes the bottom of the protrusion, causing the mounting rod to move. The mounting rod vibrates vertically under the limiting action of the mounting block and the elastic support of the spring, thereby causing the workpiece to vibrate in the molten metal.

[0023] Step 3: After coating is completed, the first conveying assembly, through the mounting plate, mounting block, and mounting rod, moves the workpiece from under the first roller to between the first and second rollers. The cylinder drives the moving frame and the insertion rod downwards, aligning the insertion rod with the upper through hole of the mounting plate. At this time, the moving rod contacts the solution surface. The second conveying assembly moves the cylinder, moving frame, and insertion rod to the right. The moving frame drives the second mounting frame to the right, thereby moving the moving rod to the right, pushing the solidified skin between the first and second rollers to the right. Simultaneously, the first motor drives the first roller to rotate through the transmission assembly, and the second motor drives the second roller to rotate. The first and second rollers rotate in opposite directions, thereby moving the molten liquid under the first and second rollers to both sides, keeping the molten liquid between the first and second rollers flowing.

[0024] Step 4: The second conveying assembly drives the cylinder, the moving frame, and the insertion rod to move to the right, so that the insertion rod is inserted into the through holes on the mounting blocks on both sides; the cylinder drives the insertion rod to move upward through the moving frame, and the upward movement of the insertion rod drives the mounting block to move upward through the through holes on the hanging plate, thereby driving the mounting rod, the fixing block, and the workpiece to move upward. After the workpiece moves to the upper side of the hot-dip galvanizing tank, the second conveying assembly drives the cylinder to reset.

[0025] The present invention has the following technical effects:

[0026] 1. This invention uses two sets of floating fixtures to fix the workpiece. The floating fixtures are inserted into a first transfer component. The first conveying component moves the floating fixtures and workpieces through the first transfer component, immersing the workpieces in the molten liquid in the hot-dip galvanizing bath for zinc coating. A de-bubbling component taps the floating fixtures, causing them to vibrate, which in turn causes the workpieces to vibrate, thus removing small air bubbles from the workpieces and allowing the molten liquid to adhere better to the workpieces, reducing the number of air bubbles in the zinc coating. The second conveying component moves the second transfer component, inserting it into the upper side of the floating fixtures. During this process, the second transfer component moves the second discharge component, pushing away the solidified skin on the upper side of the first discharge component. The first discharge component moves the molten liquid in the middle of the first discharge component to both sides, keeping the molten liquid in the middle of the first discharge component flowing and preventing solidification during workpiece removal. This allows for continuous coating of multiple workpieces, improving coating efficiency, reducing air bubbles in the coating layer, and preventing orange peel-like coating, thus improving coating quality. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0028] Figure 1 This invention provides a three-dimensional coating device for high-film-thickness galvanized steel sheets that can reduce air bubbles. Figure 1 ;

[0029] Figure 2 This is a front view of a high-film-thickness galvanized steel sheet coating equipment that can reduce air bubbles according to the present invention;

[0030] Figure 3 This invention provides a three-dimensional coating device for high-film-thickness galvanized steel sheets that can reduce air bubbles. Figure 2 ;

[0031] Figure 4 This is a schematic diagram of the workpiece and its connection structure.

[0032] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0033] Figure 6 This is a schematic diagram of the mounting rod and its connection structure;

[0034] Figure 7 This is a schematic diagram of the mobile frame and its connecting structure;

[0035] Figure 8 for Figure 1 Enlarged view at point B in the middle;

[0036] Figure 9 This is a schematic diagram of the first roller and its connecting structure.

[0037] The labels in the diagram represent:

[0038] 1. First support platform; 11. First conveying assembly; 12. First transfer assembly; 121. Mounting plate; 122. Positioning groove; 123. Clearance groove; 124. Pressure plate; 2. Second support platform; 21. Second conveying assembly; 22. Second transfer assembly; 221. Cylinder; 222. Moving frame; 223. Insert rod; 3. Hot-dip galvanizing tank; 4. Floating hanger; 41. Mounting block; 42. Insert block; 43. Mounting rod; 44. Limiting block; 45. Spring; 46. Hanging plate ; 47. Through hole; 48. Fixing block; 49. Protrusion; 5. De-bubbling assembly; 51. First mounting bracket; 52. Third motor; 53. Rotating block; 6. Auxiliary discharge mechanism; 61. First discharge assembly; 611. First motor; 612. Transmission assembly; 613. First rotating roller; 614. Second motor; 615. Second rotating roller; 62. Second discharge assembly; 621. Second mounting bracket; 622. Moving rod; 7. Workpiece; 71. Slot; 8. Support frame. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0040] The present invention will be further described below with reference to embodiments.

[0041] The terms "left", "right", "front", "back", "up", and "down" mentioned in the following description are oriented in the direction of the front view.

[0042] Example 1

[0043] Please refer to the instruction manual appendix. Figure 1-4 A high-film-thickness galvanized steel sheet coating equipment that can reduce bubbles includes two first support platforms 1 arranged symmetrically, a support frame 8 located to the left of the first support platform 1, a second support platform 2 located to the left of the support frame 8, and a hot-dip galvanizing tank 3 located below the first support platform 1.

[0044] The first support platform 1 is equipped with a first conveying assembly 11 and a first transfer assembly 12, and the second support platform 2 is equipped with a second conveying assembly 21 and a second transfer assembly 22; multiple sets of floating hangers 4 for fixing workpieces 7 are inserted into the first transfer assembly 12 and the second transfer assembly 22.

[0045] Two sets of de-bubbling components 5 are symmetrically installed on the right side of the hot-dip galvanizing tank 3; the auxiliary discharge mechanism 6 is installed on the left side of the support frame 8, the hot-dip galvanizing tank 3, and the second transfer component 22.

[0046] The auxiliary discharge mechanism 6 includes a first discharge component 61 and a second discharge component 62. The first discharge component 61 is installed on the left side of the hot-dip galvanizing tank 3 and on the support frame 8, and the second discharge component 62 is installed on the second transfer component 22.

[0047] The first conveyor assembly 11 and the second conveyor assembly 12 are configured as a straight belt module.

[0048] In this embodiment, when the high-film-thickness galvanized steel sheet coating equipment that reduces bubbles is working normally, after the workpiece 7 is fixed with two sets of floating hangers 4, the floating hangers 4 are inserted into the first transfer assembly 12. The first conveying assembly 11 moves the floating hangers 4 and the workpiece 7 through the first transfer assembly 12, so that the workpiece 7 is immersed in the molten liquid in the hot-dip galvanizing bath 3 for zinc coating. The first conveying assembly 11 moves the workpiece 7 to the position of the de-bubbling assembly 5 through the first transfer assembly 12 and the floating hangers 4. The de-bubbling assembly 5 taps the floating hangers 4 to make the floating hangers 4 vibrate, thereby causing the workpiece 7 to vibrate, so that the small bubbles on the workpiece 7 are detached from the workpiece 7, and the molten liquid adheres better to the workpiece 7, reducing the number of bubbles in the zinc coating of the workpiece 7. The first conveying assembly 11 continues to move the workpiece 7 through the first transfer assembly 12 and the floating hangers 4 until the coating is completed. The conveying component 21 drives the second transfer component 22 to move, so that the second transfer component 22 is inserted into the upper side of the floating fixture 4. During this process, the second transfer component 22 drives the second discharge component 62 to push away the solidified skin on the upper side of the first discharge component 61. The first discharge component 61 is activated to move the molten liquid in the middle of the first discharge component 61 to both sides, so that the molten liquid in the middle of the first discharge component 61 remains flowing and does not solidify during the removal of the workpiece 7. The second transfer component 22 drives the workpiece 7 upward through the floating fixture 4, so that the workpiece 7 is moved to the upper side of the hot-dip galvanizing tank 3. Then, the second conveying component 21, through the second transfer component 22 and the floating fixture 4, drives the workpiece 7 to leave the hot-dip galvanizing tank 3 and transfer it to the subsequent process operation area. This enables continuous coating of multiple workpieces 7, improves coating efficiency, reduces bubbles in the coating layer, avoids orange peel on the coating layer, and improves coating quality.

[0049] Example 2

[0050] like Figure 1-8As shown, in a preferred embodiment of the present invention, the floating hanger 4 includes a mounting block 41, an insert block 42, a mounting rod 43, a limiting block 44, a spring 45, a hanging plate 46, a through hole 47, and a fixing block 48. Two insert blocks 42 are symmetrically fixedly mounted on the lower side of the mounting block 41. The mounting rod 43 passes through the mounting block 41 and is slidably connected to the mounting block 41. A limiting block 44 is fixedly mounted on the top of the mounting rod 43, and a spring 45 is fixedly mounted between the limiting block 44 and the mounting block 41. Two hanging plates 46 are symmetrically fixedly mounted on the upper side of the mounting block 41, and through holes 47 are provided on the hanging plates 46. A fixing block 48 that is inserted into the slot 71 is fixedly mounted on the lower side of the mounting rod 43.

[0051] The floating hanger 4 also includes a protrusion 49, which is fixedly installed on the mounting rod 43. The protrusion 49 is located between the insert block 42 and the fixing block 48.

[0052] The first transfer assembly 12 includes a mounting plate 121, a positioning groove 122, a clearance groove 123, and a pressure plate 124. Multiple mounting plates 121 are evenly and uniformly fixedly installed at equal intervals on the output end of the first conveying assembly 11. The mounting plate 121 has a positioning groove 122, which is inserted into the insertion block 42. The mounting plate 121 has a clearance groove 123 in the middle, through which the mounting rod 43 passes. The pressure plate 124 is fixedly installed on the upper side of the first support platform 1. The pressure plate 124 is located on the upper side of the mounting plate 121 and is slidably connected to the upper surface of the mounting block 41.

[0053] The second transfer assembly 22 includes a cylinder 221, a moving frame 222, and insert rods 223. The cylinder 221 is fixedly installed at the moving end of the second conveying assembly 21, and the moving frame 222 is fixedly installed at the output end of the cylinder 221. Insert rods 223 are symmetrically fixedly installed on both sides of the moving frame 222. The insert rods 223 are inserted into the through holes 47 on the two hanging plates 46 symmetrically installed on the mounting block 41.

[0054] The debubbling assembly 5 includes a first mounting frame 51, a third motor 52, and a rotating block 53. The first mounting frame 51 is fixedly mounted on the outer wall of the hot-dip galvanizing tank 3, the third motor 52 is fixedly mounted on the first mounting frame 51, and the output end of the third motor 52 is fixedly mounted with a rotating block 53 for striking the protrusion 49.

[0055] In this embodiment, when the floating hanger 4, the de-bubble assembly 5, the first transfer assembly 12, and the second transfer assembly 22 are working normally, the fixing block 48 is inserted into the slot 71, and the workpiece 7 is suspended and fixed by the fixing block 48 and the mounting rod 43. Then, the insert block 42 is inserted into the positioning groove 122, and the mounting block 41 is supported by the mounting plate 121. At the same time, the pressure plate 124 presses the mounting block 41 to keep it stable. The first conveying assembly 11 drives the mounting plate 121 to move. The mounting plate 121 drives the mounting block 41 and the mounting rod 43 to move through the positioning groove 122 and the insert block 42, moving the workpiece 7 into the hot-dip galvanizing tank 3 and immersing the workpiece 7 in the molten liquid. When the mounting rod 43 moves to the rotation area of ​​the rotating block 53, the third motor 52 drives the rotating block 53 to rotate. The rotating block 53 strikes the bottom of the protrusion 49, causing the mounting rod 43 to move. The mounting rod 43 vibrates vertically under the limiting action of the mounting block 41 and the elastic support of the spring 45. This causes the workpiece 7 to vibrate within the molten metal, eliminating air bubbles on its surface. After coating, the first conveying assembly 11, via the mounting plate 121, mounting block 41, and mounting rod 43, moves the workpiece 7 to the center of the auxiliary discharge mechanism 6. At this point, the mounting block 41 is unobstructed by the pressure plate 124, facilitating its upward movement. The cylinder 221 drives the moving frame 222 and the insertion rod 223 downward, aligning the insertion rod 223 with the upper through hole 47 of the hanging plate 46. The second conveying assembly 21 then... The cylinder 221, the moving frame 222, and the insertion rod 223 move to the right, thereby inserting the insertion rod 223 into the through hole 47 on the mounting blocks 41 on both sides; the cylinder 221 drives the insertion rod 223 to move upward through the moving frame 222, and the upward movement of the insertion rod 223 drives the mounting block 41 to move upward through the through hole 47 on the hanging plate 46, thereby driving the mounting rod 43, the fixing block 48, and the workpiece 7 to move upward. After the workpiece 7 moves to the upper side of the hot-dip galvanizing tank 3, the second conveying assembly 21 drives the cylinder 221 to reset.

[0056] Example 3

[0057] like Figure 1-3 As shown in Figures 7 and 9, in a preferred embodiment of the present invention, the first discharge assembly 61 includes a first motor 611, a transmission assembly 612, a first rotating roller 613, a second motor 614, and a second rotating roller 615. The first motor 611 is fixedly mounted on the upper side of the support frame 8, and the first rotating roller 613 is rotatably mounted on the lower side of the support frame 8. The output end of the first motor 611 is connected to the first rotating roller 613 via the transmission assembly 612. The second motor 614 is fixedly mounted on the outer wall of the hot-dip galvanizing tank 3, and the second rotating roller 615 is rotatably mounted on the inner wall of the hot-dip galvanizing tank 3. The output end of the second motor 614 passes through the hot-dip galvanizing tank 3 and is fixedly connected to the second rotating roller 615.

[0058] The tops of the first roller 613 and the second roller 615 are on the same plane as the surface of the molten liquid in the hot-dip galvanizing tank 3, and the first roller 613 rotates to the right and the second roller 615 rotates to the left.

[0059] The transmission assembly 612 is configured as a belt and pulley transmission assembly.

[0060] The second discharge assembly 62 includes a second mounting frame 621 and a moving rod 622. The top of the second mounting frame 621 is fixedly mounted on the moving frame 222, and the moving rod 622 is fixedly mounted on the bottom of the second mounting frame 621.

[0061] In this embodiment, when the auxiliary discharge mechanism 6 is working normally, when the workpiece 7 passes under the first roller 613 and moves between the first roller 613 and the second roller 615, the cylinder 221 drives the moving frame 222 and the insertion rod 223 to move downward, so that the insertion rod 223 is aligned with the upper through hole 47 of the hanging plate 46. At this time, the moving rod 622 is in contact with the liquid surface of the solution. The second conveying assembly 21 drives the cylinder 221, the moving frame 222 and the insertion rod 223 to move to the right. The moving frame 222 drives the second mounting frame 621 to move to the right, thereby driving the moving rod 622 to move to the right, pushing the condensed skin between the first roller 613 and the second roller 615 to the right. Simultaneously, the first motor 611 drives the first roller 613 to rotate via the transmission assembly 612, and the second motor 614 drives the second roller 615 to rotate. The first roller 613 and the second roller 615 rotate in opposite directions, thereby causing the molten liquid on the lower side between the first roller 613 and the second roller 615 to move to both sides, keeping the molten liquid between the first roller 613 and the second roller 615 flowing. This prevents the surface from solidifying between the first roller 613 and the second roller 615, and thus prevents the solidified surface from adhering to the workpiece 7 when it moves upward, causing wrinkles on the surface of the workpiece 7. This also prevents the coating layer on the workpiece 7 from developing orange peel and improves the coating quality.

[0062] Example 4

[0063] like Figure 1-9 As shown, in a preferred embodiment of the present invention, a method for coating high-film-thickness galvanized steel sheets with reduced air bubbles is also provided, comprising the following steps:

[0064] Step 1: The workpiece 7 is suspended and fixed by the fixing block 48 and the mounting rod 43. Then, the insert block 42 is inserted into the positioning groove 122. The mounting block 41 is supported by the mounting plate 121, and the mounting block 41 is pressed by the pressure plate 124 to keep the mounting block 41 stable.

[0065] Step 2: The first conveying component 11 drives the mounting plate 121 to move. The mounting plate 121 drives the mounting block 41 and the mounting rod 43 to move through the positioning groove 122 and the insert block 42, thus moving the workpiece 7 into the hot plating tank 3 and immersing it in the molten liquid. When the mounting rod 43 moves to the rotation area of ​​the rotating block 53, the third motor 52 drives the rotating block 53 to rotate. The rotating block 53 strikes the bottom of the protrusion 49, causing the mounting rod 43 to move. The mounting rod 43 vibrates vertically under the limiting action of the mounting block 41 and the elastic support of the spring 45, thereby causing the workpiece 7 to vibrate in the molten liquid.

[0066] Step 3: After coating is completed, the first conveying assembly 11, through the mounting plate 121, mounting block 41, and mounting rod 43, drives the workpiece 7 to pass under the first roller 613 and move it between the first roller 613 and the second roller 615. The cylinder 221 drives the moving frame 222 and the insertion rod 223 to move downward, so that the insertion rod 223 is aligned with the upper through hole 47 of the hanging plate 46. At this time, the moving rod 622 is in contact with the solution surface. The second conveying assembly 21 drives the cylinder 221, the moving frame 222, and the insertion rod 223 to move to the right. The moving frame 222 drives the second mounting plate 46 to move to the right. The frame 621 moves to the right, thereby driving the moving rod 622 to move to the right, pushing the solidified skin between the first roller 613 and the second roller 615 to the right. At the same time, the first motor 611 drives the first roller 613 to rotate through the transmission assembly 612, and the second motor 614 drives the second roller 615 to rotate. The first roller 613 and the second roller 615 rotate in opposite directions, thereby driving the molten liquid on the lower side between the first roller 613 and the second roller 615 to move to both sides, so that the molten liquid between the first roller 613 and the second roller 615 keeps flowing.

[0067] Step 4: The second conveying assembly 21 drives the cylinder 221, the moving frame 222, and the insertion rod 223 to move to the right, so that the insertion rod 223 is inserted into the through hole 47 on the mounting blocks 41 on both sides; the cylinder 221 drives the insertion rod 223 to move upward through the moving frame 222, and the upward movement of the insertion rod 223 drives the mounting block 41 to move upward through the through hole 47 on the hanging plate 46, thereby driving the mounting rod 43, the fixing block 48, and the workpiece 7 to move upward. After the workpiece 7 moves to the upper side of the hot-dip galvanizing tank 3, the second conveying assembly 21 drives the cylinder 221 to reset.

[0068] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A coating equipment for high-film-thickness galvanized steel sheets that can reduce bubbles, comprising two first support platforms (1) symmetrically arranged, a support frame (8) located to the left of the first support platform (1), a second support platform (2) located to the left of the support frame (8), and a hot-dip galvanizing tank (3) located below the first support platform (1), characterized in that: The first support platform (1) is equipped with a first conveying assembly (11) and a first transfer assembly (12), and the second support platform (2) is equipped with a second conveying assembly (21) and a second transfer assembly (22); multiple sets of floating fixtures (4) for fixing workpieces (7) are inserted into the first transfer assembly (12) and the second transfer assembly (22). Two sets of de-bubbling components (5) are symmetrically installed on the right side of the hot-dip galvanizing tank (3); the auxiliary discharge mechanism (6) is installed on the left side of the support frame (8), the hot-dip galvanizing tank (3), and the second transfer component (22); The auxiliary discharge mechanism (6) includes a first discharge component (61) and a second discharge component (62). The first discharge component (61) is installed on the left side of the hot-dip galvanizing tank (3) and on the support frame (8), and the second discharge component (62) is installed on the second transfer component (22).

2. The high-film-thickness galvanized steel sheet coating equipment with reduced bubble formation according to claim 1, characterized in that, The floating hanger (4) includes a mounting block (41), an insert block (42), a mounting rod (43), a limiting block (44), a spring (45), a hanging plate (46), a through hole (47), and a fixing block (48). Two insert blocks (42) are symmetrically fixedly installed on the lower side of the mounting block (41). The mounting rod (43) passes through the mounting block (41) and is slidably connected to the mounting block (41). A limiting block (44) is fixedly installed on the top of the mounting rod (43), and a spring (45) is fixedly installed between the limiting block (44) and the mounting block (41). Two hanging plates (46) are symmetrically fixedly installed on the upper side of the mounting block (41), and a through hole (47) is opened on the hanging plate (46). A fixing block (48) that is inserted into the slot (71) is fixedly installed on the lower side of the mounting rod (43).

3. The high-film-thickness galvanized steel sheet coating equipment with reduced bubble formation according to claim 2, characterized in that, The floating hanger (4) also includes a protrusion (49), which is fixedly installed on the mounting rod (43). The protrusion (49) is located between the insert block (42) and the fixing block (48).

4. The high-film-thickness galvanized steel sheet coating equipment with reduced bubble formation according to claim 3, characterized in that, The first transfer assembly (12) includes a mounting plate (121), a positioning groove (122), a clearance groove (123), and a pressure plate (124). Multiple mounting plates (121) are evenly and uniformly fixedly installed on the output end of the first conveying assembly (11). The mounting plate (121) has a positioning groove (122) and is inserted into the plug (42). The mounting plate (121) has a clearance groove (123) in the middle and the mounting rod (43) passes through the clearance groove (123). The pressure plate (124) is fixedly installed on the upper side of the first support platform (1). The pressure plate (124) is located on the upper side of the mounting plate (121) and is slidably connected to the upper surface of the mounting block (41).

5. The high-film-thickness galvanized steel sheet coating equipment with reduced bubble formation according to claim 4, characterized in that, The second transfer assembly (22) includes a cylinder (221), a moving frame (222), and a plug rod (223). The cylinder (221) is fixedly installed at the moving end of the second conveying assembly (21). The moving frame (222) is fixedly installed at the output end of the cylinder (221). Plug rods (223) are symmetrically fixedly installed on both sides of the moving frame (222). The plug rods (223) are inserted into the through holes (47) on the two hanging plates (46) symmetrically installed on the mounting block (41).

6. The high-film-thickness galvanized steel sheet coating equipment with reduced bubble formation according to claim 5, characterized in that, The debubbling assembly (5) includes a first mounting bracket (51), a third motor (52) and a rotating block (53). The first mounting bracket (51) is fixedly mounted on the outer wall of the hot-dip galvanizing tank (3). The third motor (52) is fixedly mounted on the first mounting bracket (51). The output end of the third motor (52) is fixedly mounted with a rotating block (53) for striking the protrusion (49).

7. The high-film-thickness galvanized steel sheet coating equipment with reduced bubble formation according to claim 6, characterized in that, The first discharge assembly (61) includes a first motor (611), a transmission assembly (612), a first rotating roller (613), a second motor (614), and a second rotating roller (615). The first motor (611) is fixedly installed on the upper side of the support frame (8), and the first rotating roller (613) is rotatably installed on the lower side of the support frame (8). The output end of the first motor (611) is connected to the first rotating roller (613) through the transmission assembly (612). The second motor (614) is fixedly installed on the outer wall of the hot-dip galvanizing tank (3), and the second rotating roller (615) is rotatably installed on the inner wall of the hot-dip galvanizing tank (3). The output end of the second motor (614) passes through the hot-dip galvanizing tank (3) and is fixedly connected to the second rotating roller (615).

8. The high-film-thickness galvanized steel sheet coating equipment with reduced bubble formation according to claim 7, characterized in that, The tops of the first roller (613) and the second roller (615) are on the same plane as the surface of the molten liquid in the hot-dip galvanizing tank (3), and the first roller (613) rotates to the right and the second roller (615) rotates to the left.

9. The high-film-thickness galvanized steel sheet coating equipment with reduced bubble formation according to claim 8, characterized in that, The second discharge assembly (62) includes a second mounting frame (621) and a moving rod (622). The top of the second mounting frame (621) is fixedly mounted on the moving frame (222), and the bottom of the second mounting frame (621) is fixedly mounted on the moving rod (622).

10. A coating method using the high film thickness galvanized steel sheet coating equipment as described in claim 9, characterized in that, Includes the following steps: Step 1: The workpiece (7) is suspended and fixed by the fixing block (48) and the mounting rod (43). Then the insert block (42) is inserted into the positioning groove (122). The mounting block (41) is supported by the mounting plate (121), and the mounting block (41) is pressed by the pressure plate (124) to keep the mounting block (41) stable. Step 2: The first conveying component (11) drives the mounting plate (121) to move. The mounting plate (121) drives the mounting block (41) and the mounting rod (43) to move through the positioning groove (122) and the insert (42), thereby moving the workpiece (7) into the hot plating tank (3) and immersing the workpiece (7) in the molten liquid. When the mounting rod (43) moves to the rotation area of ​​the rotating block (53), the third motor (52) drives the rotating block (53) to rotate. The rotating block (53) strikes the bottom of the protrusion (49), causing the mounting rod (43) to move. The mounting rod (43) vibrates vertically under the limiting action of the mounting block (41) and the elastic support of the spring (45), thereby causing the workpiece (7) to vibrate in the molten liquid. Step 3: After coating is completed, the first conveying assembly (11) drives the workpiece (7) through the mounting plate (121), mounting block (41), and mounting rod (43) to pass under the first roller (613) and move between the first roller (613) and the second roller (615). The cylinder (221) drives the moving frame (222) and the insertion rod (223) to move downward, so that the insertion rod (223) is aligned with the upper through hole (47) of the hanging plate (46). At this time, the moving rod (622) is in contact with the liquid surface of the solution. The second conveying assembly (21) drives the cylinder (221), the moving frame (222), and the insertion rod (223) to move to the right. The moving frame (222) carries... The second mounting bracket (621) moves to the right, thereby driving the moving rod (622) to move to the right, pushing the solidified skin between the first roller (613) and the second roller (615) to the right. At the same time, the first motor (611) drives the first roller (613) to rotate through the transmission assembly (612), and the second motor (614) drives the second roller (615) to rotate. The first roller (613) and the second roller (615) rotate in opposite directions, thereby driving the molten liquid on the lower side between the first roller (613) and the second roller (615) to move to both sides, so that the molten liquid between the first roller (613) and the second roller (615) keeps flowing. Step 4: The second conveying assembly (21) drives the cylinder (221), the moving frame (222) and the insertion rod (223) to move to the right, so that the insertion rod (223) is inserted into the through hole (47) on the mounting blocks (41) on both sides; the cylinder (221) drives the insertion rod (223) to move upward through the moving frame (222), and the insertion rod (223) moves upward through the through hole (47) on the hanging plate (46) to drive the mounting block (41) to move upward, thereby driving the mounting rod (43), the fixing block (48) and the workpiece (7) to move upward, so that the workpiece (7) moves to the upper side of the hot plating tank (3), and the second conveying assembly (21) drives the cylinder (221) to reset.

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