Automatic processing device for hot-dip galvanized steel plate for automobile

Abstract

The invention belongs to the technical field of steel plate machining, and discloses an automatic machining device for a hot-dip galvanized steel plate for an automobile. Comprising a zinc bath, a lifting appliance used for lifting a steel plate is arranged at the top end of the zinc bath, a pair of scraping boxes are further included, the scraping boxes are arranged in the zinc bath, a pair of first limiting rods are slidably connected into the scraping boxes, and clamping rings are fixedly connected to the bottom ends of the first limiting rods. Through the structural design of the scraping box, the threaded mechanism and the linkage mechanism, the zinc oxide film and suspended particles on the surface of the zinc liquid are efficiently and automatically removed, the position of the scraping box is adjusted in real time along with the height of the zinc liquid by means of buoyancy and high-temperature resistance of the scraping box, the scraping box is matched with driving of the threaded mechanism, and the accuracy and stability of movement of the scraping box are ensured; in the moving process of the scraping box, the linkage mechanism drives the impeller to rotate, zinc oxide films and particles are thrown into the scraping box according to the waterwheel principle, and the influence of impurity residues on the electroplating quality is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of steel plate processing, and more specifically, to an automated processing device for hot-dip galvanized steel plates for automobiles. Background Art

[0002] Hot-dip galvanized steel sheets are made by immersing the steel sheets in molten zinc liquid, causing a metallurgical reaction between the zinc and the steel surface to form a composite material of a dense zinc-iron alloy layer and a pure zinc layer. With the continuous improvement of the requirements for lightweight and corrosion-resistant performance of automobiles, hot-dip galvanized steel sheets have become the core material for key components such as automobile bodies and chassis due to their excellent corrosion resistance and strength. When processing galvanized steel sheets, hot-dip galvanizing is an especially important step.

[0003] The galvanizing process in the automated processing equipment for hot-dip galvanized steel plates is mostly composed of a zinc tank, a hanger and a manipulator. Its working principle is as follows: the zinc tank heats the zinc ingot to 450° to form a molten zinc liquid, and then the steel plate to be processed is hung on the hanger by the manipulator, and the hanger immerses the steel plate in the molten zinc liquid. After the molten zinc liquid coats the steel plate, the staff will scrape away a layer of zinc oxide film floating on the surface of the liquid and formed by the contact between the surface of the molten zinc liquid and the air, and then the hanger will lift the galvanized steel plate and cool it down. Finally, the manipulator will remove the galvanized steel plate to complete the galvanizing process of the galvanized steel plate.

[0004] However, the existing zinc oxide film processing method often uses manual processing, and the workers are exposed to high temperature environment for a long time, which is easy to cause certain effects on their health; and there are some zinc slag particles in the zinc oxide film. When the steel plate comes into contact with the zinc oxide film floating on the surface of the zinc liquid, the zinc slag particles may be embedded in the coating, reducing the corrosion resistance and aesthetics of the coating. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an automated processing device for hot-dip galvanized steel sheets for automobiles.

[0006] To achieve the above object, the present invention provides the following technical solution: an automated processing device for hot-dip galvanized steel sheets for automobiles, comprising a zinc tank, a hanger for lifting the steel sheet is provided at the top of the zinc tank, and further comprising: A scraper box, a pair of scraper boxes are provided, and the scraper boxes are both provided inside the zinc tank, a pair of limit rods 1 are slidably connected inside the scraper box, the bottom ends of the limit rods 1 are fixedly connected with a clamping ring, the top ends of the limit rods 1 are fixedly connected with a limit concave rod, the inside of the limit concave rod is slidably connected with a guide plate, the guide plate is fixedly connected to the top end of the zinc tank, and the top end of the zinc tank is provided with a threaded mechanism for driving the scraper box to move horizontally; The impeller is arranged on the outside of a pair of scraper boxes, both ends of the impeller are rotatably connected with a fixed plate, the inside of the fixed plate is rotatably connected with a transmission rod, the outside of the impeller is fixedly connected with a sprocket 1, the outside of the transmission rod is fixedly connected with a sprocket 2, a chain is transmission-connected between the sprocket 1 and the sprocket 2, the outside of the zinc tank is slidably connected with a guide block, the top of the guide block is fixedly connected with a guide tube, the inside of the guide tube is slidably connected with a guide rod, the top of the guide rod is fixedly connected with a block, the block is rotatably connected to the outside of the transmission rod, and the periphery of the transmission rod is provided with a linkage mechanism for driving the impeller to rotate.

[0007] Furthermore, the threaded mechanism includes a motor, a bidirectional screw, a pair of threaded plates and a top plate. The motor is installed at the top of the zinc tank, the bidirectional screw is fixedly connected to the output end of the motor, the inner walls of the pair of threaded plates are fixedly connected with sliders, the bidirectional screw passes through the pair of threaded plates, and the outer side of the bidirectional screw is threadedly connected to the slider, and the top plate is fixedly connected to the limit rod 1 and the top of the threaded plate.

[0008] Furthermore, the linkage mechanism includes a fixed wheel one, a fixed wheel two, a nylon rope, a connecting square rod, a lifting square plate and a coil spring, the fixed wheel one is fixedly connected to the outside of the zinc tank, the fixed wheel two is fixedly connected to the outside of the transmission rod, the two ends of the nylon rope are respectively fixedly connected to the outside of the fixed wheel one and the fixed wheel two, the connecting square rod is fixedly connected to the outside of the guide block, the inside of the lifting square plate is slidably connected to the outside of the connecting square rod, and the two ends of the coil spring are respectively fixedly connected to the transmission rod and the lifting square plate.

[0009] Furthermore, ceramic foam is installed at the bottom ends of the pair of scraper boxes.

[0010] Furthermore, a ceramic fiber hose 1 is arranged at the top of the zinc tank, and a recovery mechanism for extracting liquid inside the scraper box is arranged at the periphery of the ceramic fiber hose 1.

[0011] Furthermore, the recovery mechanism includes a bottom box, a second ceramic fiber hose, a pre-filter and a high-temperature gear pump, the bottom box is fixedly connected to the bottom end of the scraper box, one end of the second ceramic fiber hose is fixedly connected to the interior of the bottom box, the end of the second ceramic fiber hose away from the bottom box is fixedly connected to the water inlet of the pre-filter, the water outlet of the pre-filter is fixedly connected to the water inlet of the high-temperature gear pump, and the water outlet of the high-temperature gear pump is fixedly connected to the first ceramic fiber hose.

[0012] Furthermore, a pair of scraper boxes are both fixedly connected with guide blocks inside, and the cross-section of the guide blocks is triangular.

[0013] The technical effects and advantages of the automatic processing device for hot-dip galvanized steel sheets for automobiles of the present invention are as follows: (1) The present invention realizes efficient and automatic removal of zinc oxide film and suspended particles on the surface of zinc liquid through the structural design of the scraper box, threaded mechanism and linkage mechanism. The scraper box uses its own buoyancy and high temperature resistance to adjust its position in real time with the height of the zinc liquid, and cooperates with the threaded mechanism to drive the scraper box to ensure the accuracy and stability of movement. At the same time, during the movement of the scraper box, the linkage mechanism drives the impeller to rotate, and uses the waterwheel principle to throw the zinc oxide film and particles into the scraper box, effectively avoiding the influence of impurity residues on the electroplating quality, significantly improving the production efficiency and quality of galvanized steel sheets, and realizing the intelligent and automated upgrade of the electroplating process.

[0014] (2) The present invention realizes that the recovery mechanism can efficiently extract the zinc oxide film and particles in the zinc-containing liquid in the bottom box and the scraper box through the structural design of the recovery mechanism and the ceramic fiber hose. After filtering, the particles are effectively blocked, and the pure zinc liquid is accurately injected back into the zinc tank with the help of the ceramic fiber hose, thereby realizing the recycling and efficient management of resources and significantly improving the environmental protection and economy of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the local structure in the present invention.

[0017] Figure 3 It is a schematic diagram of the structure of the hanger in the present invention.

[0018] Figure 4 It is a schematic diagram of the structure of the limiting concave rod and the guide plate in the present invention.

[0019] Figure 5 It is a schematic diagram of the scraper box structure in the present invention.

[0020] Figure 6 It is a schematic diagram of the guide block and connecting square rod structure in the present invention.

[0021] Figure 7 It is a schematic diagram of the zinc tank structure in the present invention.

[0022] Figure 8 For the present invention Figure 7 Schematic diagram of the structure at point A.

[0023] Fig. 9 It is a schematic diagram of the nylon rope and coil spring structure in the present invention.

[0024] Fig.10 It is a schematic diagram of the bottom box structure in the present invention.

[0025] Fig.11 It is a schematic diagram of the second structure of the ceramic fiber hose in the present invention.

[0026] Fig.12 It is a schematic cross-sectional view of the scraper box in the present invention.

[0027] In the figure: 1. Zinc trough; 2. Lifting device; 3. Scraper box; 4. Limit rod 1; 5. Impeller; 6. Fixed plate; 7. Transmission rod; 8. Sprocket 1; 9. Sprocket 2; 10. Chain; 11. Guide block; 12. Guide tube; 13. Guide rod; 14. Block; 15. Motor; 16. Bidirectional screw; 17. Threaded plate; 18. Top plate; 19. Fixed wheel 1; 20. Fixed wheel 2; 21. Nylon rope; 22. Connecting square rod; 23. Lifting square plate; 24. Coil spring; 25. Ceramic foam; 26. Ceramic fiber hose 1; 27. Bottom box; 28. Ceramic fiber hose 2; 29. ​​High-temperature gear pump; 30. Guide block; 60. Limit concave rod; 61. Guide plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1 - Fig. 9 As shown, an automated processing device for hot-dip galvanized steel sheets for automobiles comprises a zinc tank 1, a hanger 2 for lifting the steel sheet is arranged at the top of the zinc tank 1, and further comprises: A scraper box 3, a pair of scraper boxes 3 are provided, and the pair of scraper boxes 3 are both provided inside the zinc tank 1, a pair of limit rods 4 are slidably connected inside the scraper box 3, the bottom ends of the pair of limit rods 4 are fixedly connected with a clamping ring, the top end of the limit rod 4 is fixedly connected with a limit concave rod 60, the inside of the limit concave rod 60 is slidably connected with a guide plate 61, the guide plate 61 is fixedly connected to the top end of the zinc tank 1, and the top end of the zinc tank 1 is provided with a threaded mechanism for driving the scraper box 3 to move horizontally; Impeller 5, impeller 5 is arranged on the outside of a pair of scraper boxes 3, both ends of the impeller 5 are rotatably connected with a fixed plate 6, the inside of the fixed plate 6 is rotatably connected with a transmission rod 7, the outside of the impeller 5 is fixedly connected with a sprocket 1 8, the outside of the transmission rod 7 is fixedly connected with a sprocket 2 9, a chain 10 is transmission-connected between the sprocket 1 8 and the sprocket 2 9, the outside of the zinc tank 1 is slidably connected with a guide block 11, the top end of the guide block 11 is fixedly connected with a guide tube 12, the inside of the guide tube 12 is slidably connected with a guide rod 13, the top end of the guide rod 13 is fixedly connected with a block 14, the block 14 is rotatably connected to the outside of the transmission rod 7, and the periphery of the transmission rod 7 is provided with a linkage mechanism for driving the impeller 5 to rotate.

[0030] The zinc tank 1 heats the zinc ingot to 450° to form molten zinc liquid, and then the steel plate to be processed is hung on the hanger 2 by a manipulator (the hanger 2 and the manipulator are both existing technologies, and the technology is mature, so no further explanation is given). The hanger 2 immerses the steel plate in the molten zinc liquid. After the molten zinc liquid coats the steel plate, the worker scrapes off a layer of zinc oxide film floating on the surface of the liquid and formed by the contact between the surface of the molten zinc liquid and the air. However, the existing zinc oxide film processing method often uses manual processing, and the workers are in a high temperature environment for a long time, which is easy to cause certain effects on their bodies; and there are some zinc slag particles in the zinc oxide film. When the steel plate contacts the zinc oxide film floating on the surface of the zinc liquid, the zinc slag particles may be embedded in the coating, reducing the corrosion resistance and aesthetics of the coating. When the embodiment of the present invention is used, in the initial state, a pair of scraper boxes 3 are located close to the hanger 2, and the scraper boxes 3 are high temperature resistant and buoyant. The scraper boxes 3 float on the surface of the zinc liquid, so that the scraper boxes 3 can change their position in real time according to the height of the liquid. When the hanger 2 needs When the steel plate is lifted, the threaded mechanism runs, driving the limit rod 4 to move horizontally. The setting of the limit concave rod 60 and the guide plate 61 can ensure the stability of the scraper box 3 when it moves. At this time, a pair of scraper boxes 3 move in the direction away from the hanger 2. When the scraper box 3 moves, the zinc oxide film floating on the surface of the liquid can be withdrawn in the direction away from the hanger 2, thereby freeing the staff from manual operation. In the process of moving the scraper box 3, the scraper box 3 will also drive the impeller 5 and the fixed plate 6 to move. In the process of moving the fixed plate 6, the fixed plate 6 will drive the transmission rod 7 to move. The setting of the guide tube 12, the guide rod 13 and the block 14 can improve the stability of the transmission rod 7. The guide rod 13 is slidably connected to the inside of the guide tube 12, which can ensure that when the height of the scraper box 3 moves, the transmission rod 7 can move synchronously with the height of the scraper box 3, and the position of the block 14 will not limit the height movement of the transmission rod 7. As the transmission rod 7 moves, the transmission rod 7 will trigger the operation of the linkage mechanism, and the linkage mechanism will drive the transmission rod 7 to Figure 6The perspective is clockwise, and the rotation of the transmission rod 7 will drive the sprocket 2 9 to rotate. The rotation of the sprocket 2 9 then drives the sprocket 1 8 to rotate through the chain 10. The sprocket 1 8 will eventually drive the impeller 5 to rotate. As the scraper box 3 moves, it will push the floating zinc oxide film, and there will be some suspended particles in the zinc oxide film, so that the zinc oxide film and particles are gradually accumulated together. Since the edge of the impeller 5 is convex, along with the rotation of the impeller 5, the impeller 5 will rotate and lift up part of the zinc oxide film and particles containing zinc liquid (similar to the principle of a waterwheel), and under the action of gravity and centrifugal force, the zinc oxide film and particles containing zinc liquid are thrown into the scraper box 3, thereby avoiding the zinc oxide film and particles containing zinc liquid still being in the zinc tank 1, affecting the subsequent electroplating quality. Then the hanger 2 lifts the galvanized steel plate and cools it down. Finally, the manipulator removes the galvanized steel plate to complete the galvanizing process of the galvanized steel plate.

[0031] like Figure 4 and Figure 5 As shown, the thread mechanism includes a motor 15, a bidirectional screw 16, a pair of threaded plates 17 and a top plate 18. The motor 15 is installed at the top of the zinc tank 1. The bidirectional screw 16 is fixedly connected to the output end of the motor 15. The inner walls of the pair of threaded plates 17 are fixedly connected with sliders. The bidirectional screw 16 passes through the pair of threaded plates 17, and the outer side of the bidirectional screw 16 is threadedly connected to the slider. The top plate 18 is fixedly connected to the limit rod 4 and the top of the threaded plate 17.

[0032] When the motor 15 is running, it will drive the bidirectional screw 16 to rotate, and the rotation of the bidirectional screw 16 will drive the slider inside the top plate 18 to move horizontally. During the movement of the slider, the top plate 18 can be driven to move synchronously, and the top plate 18 will eventually drive the scraper box 3 to move through the limit rod 4.

[0033] like Figure 7 , Figure 8 and Fig. 9 As shown, the linkage mechanism includes a fixed wheel 19, a fixed wheel 20, a nylon rope 21, a connecting square rod 22, a lifting square plate 23 and a coil spring 24. The fixed wheel 19 is fixedly connected to the outside of the zinc tank 1, the fixed wheel 20 is fixedly connected to the outside of the transmission rod 7, the two ends of the nylon rope 21 are respectively fixedly connected to the outside of the fixed wheel 19 and the fixed wheel 20, the connecting square rod 22 is fixedly connected to the outside of the guide block 11, the inside of the lifting square plate 23 is slidably connected to the outside of the connecting square rod 22, and the two ends of the coil spring 24 are respectively fixedly connected to the transmission rod 7 and the lifting square plate 23.

[0034] In the initial state, the nylon rope 21 is wound around the outside of the fixed wheel 20. When the transmission rod 7 moves, the transmission rod 7 pulls the nylon rope 21 through the fixed wheel 20. Since the fixed wheel 19 is fixed, when the transmission rod 7 moves, the wound part of the nylon rope 21 is gradually released, so that the fixed wheel 20 can move with the fixed wheel 19. Fig. 9 When the angle of view rotates counterclockwise, the rotation of the fixed wheel 20 will drive the transmission rod 7 to rotate, and finally drive the impeller 5 to rotate. When the transmission rod 7 rotates, it can cooperate with the lifting square plate 23 to deform the coil spring 24 under force and generate elastic potential energy. The connecting square rod 22 is slidably connected to the inside of the lifting square plate 23, which can ensure that when the height of the lifting square plate 23 changes, it will not interfere with the normal movement of the lifting square plate 23. When the scraper box 3 drives the impeller 5 to reset, the transmission rod 7 is also in the reset state at this time. The reset of the transmission rod 7 will gradually end the pulling of the nylon rope 21, and the coil spring 24 will gradually release the elastic potential energy, thereby driving the transmission rod 7 to rotate in the opposite direction. It should be noted that the elastic potential energy of the coil spring 24 is sufficient to support the reversal of the impeller 5 and the transmission rod 7. When the transmission rod 7 reverses, it will drive the fixed wheel 20 to drive the nylon rope 21 to continue to wrap around its outer side, ensuring the normal operation of the next work.

[0035] like Fig.10 As shown, ceramic foam 25 is installed at the bottom end of a pair of scraper boxes 3.

[0036] The ceramic foam 25 has the characteristics of high temperature resistance and strong buoyancy, and can be used together with the scraper box 3 to make its buoyancy more stable, ensuring that the scraper box 3 can stably float on the surface of the zinc liquid.

[0037] As shown in the chain 10 to the guide tube 12 , a ceramic fiber hose 26 is provided at the top of the zinc tank 1 , and a recovery mechanism for extracting the liquid inside the scraper box 3 is provided on the periphery of the ceramic fiber hose 26 .

[0038] As the zinc oxide film and particles of the zinc-containing liquid inside the scraper box 3 gradually increase, the zinc oxide film and particles of the zinc-containing liquid will flow into the bottom box 27. At this time, the zinc oxide film and particles of the zinc-containing liquid inside the bottom box 27 and the scraper box 3 can be sucked away through the recovery mechanism, and simply filtered. The filtered particles are blocked, and the zinc in the zinc oxide film will then be returned to the inside of the zinc tank 1 through the ceramic fiber hose 26, thereby achieving the purpose of resource utilization.

[0039] like Fig.11 and 12As shown, the recovery mechanism includes a bottom box 27, a ceramic fiber hose 28, a pre-filter and a high-temperature gear pump 29, the bottom box 27 is fixedly connected to the bottom end of the scraper box 3, one end of the ceramic fiber hose 28 is fixedly connected to the interior of the bottom box 27, the end of the ceramic fiber hose 28 away from the bottom box 27 is fixedly connected to the water inlet of the pre-filter, the water outlet of the pre-filter is fixedly connected to the water inlet of the high-temperature gear pump 29, and the water outlet of the high-temperature gear pump 29 is fixedly connected to the ceramic fiber hose 1 26.

[0040] Start the high-temperature gear pump 29. When the high-temperature gear pump 29 is running, the zinc oxide film and particles of the zinc-containing liquid located inside the bottom box 27 will be extracted through the ceramic fiber hose 28. It should be noted that the ceramic fiber hose 28 is a high-temperature resistant material. The high-temperature gear pump 29 will filter the zinc oxide film and particles of the zinc-containing liquid extracted through the pre-filter (the high-temperature gear pump 29 and the pre-filter are both existing technologies, which play the role of extracting liquid and filtering respectively, and the pre-filter has not been shown in the attached figure, so it will not be explained in detail), and then transport them back to the inside of the zinc tank 1 through the ceramic fiber hose 26.

[0041] like Fig.12 As shown, a pair of scraper boxes 3 are both fixedly connected with guide blocks 30 inside, and the cross section of the guide blocks 30 is triangular.

[0042] The setting of the guide block 30 can make the zinc oxide film and particles in the zinc-containing liquid inside the scraper box 3 flow to the inside of the bottom box 27 under the action of gravity, which is convenient for the high-temperature gear pump 29 to extract.

[0043] Working principle: In the initial state, a pair of scraper boxes 3 are located close to the sling 2, and the scraper boxes 3 are high temperature resistant and buoyant. The scraper boxes 3 float on the surface of the zinc liquid, so that the scraper boxes 3 can change their position in real time according to the height of the liquid. The ceramic foam 25 is high temperature resistant and has strong buoyancy. It can be used together with the scraper box 3 to make its buoyancy more stable. When the sling 2 needs to lift the steel plate, the threaded mechanism runs to drive the limit rod 4 to move horizontally. The setting of the limit concave rod 60 and the guide plate 61 can ensure the stability of the scraper box 3 when moving. At this time, the pair of scraper boxes 3 move in the direction away from the sling 2. When moving, the scraper box 3 can move the zinc oxide film floating on the surface of the liquid away from the sling. The lifting device 2 retreats in the direction of the scraper box 3, thereby freeing up the manual operation of the staff, and in the process of moving the scraper box 3, the scraper box 3 will also drive the impeller 5 and the fixed plate 6 to move. In the process of moving the fixed plate 6, the fixed plate 6 will drive the transmission rod 7 to move. The setting of the guide tube 12, the guide rod 13 and the block 14 can improve the stability of the transmission rod 7, and the guide rod 13 is slidably connected to the inside of the guide tube 12, which can ensure that when the height of the scraper box 3 moves, the transmission rod 7 can move synchronously with the height of the scraper box 3, and the position of the block 14 will not limit the height movement of the transmission rod 7. As the transmission rod 7 moves, the transmission rod 7 will trigger the operation of the linkage mechanism, and the linkage mechanism will drive the transmission rod 7 to Figure 6 The perspective is clockwise, and the rotation of the transmission rod 7 will drive the sprocket 2 9 to rotate. The rotation of the sprocket 2 9 will drive the sprocket 1 8 to rotate through the chain 10. The sprocket 1 8 will eventually drive the impeller 5 to rotate. Since the scraper box 3 will push the floating zinc oxide film when it moves, and there will be some suspended particles in the zinc oxide film, so that the zinc oxide film and particles are gradually accumulated together. Since the edge of the impeller 5 is convex, the impeller 5 will rotate and lift up part of the zinc oxide film and particles containing zinc liquid (similar to the principle of a waterwheel) with the rotation of the impeller 5, and under the action of gravity and centrifugal force, the zinc oxide film and particles containing zinc liquid are thrown into the scraper box 3, thereby avoiding the zinc oxide film and particles containing zinc liquid still being in the zinc tank 1, affecting the subsequent electroplating quality, and then the hanger 2 will lift the galvanized steel plate and cool it down. Finally, the manipulator will take down the galvanized steel plate to complete the galvanizing process of the galvanized steel plate. When the motor 15 is running, it will drive the bidirectional screw 16 to rotate, and the rotation of the bidirectional screw 16 will drive the slider inside the top plate 18 to move horizontally. During the movement of the slider, the top plate 18 can be driven to move synchronously, and the top plate 18 will eventually drive the scraper box 3 to move through the limit rod 14; In the initial state, the nylon rope 21 is wound around the outside of the fixed wheel 20. When the transmission rod 7 moves, the transmission rod 7 pulls the nylon rope 21 through the fixed wheel 20. Since the fixed wheel 19 is fixed, when the transmission rod 7 moves, the wound part of the nylon rope 21 is gradually released, so that the fixed wheel 20 can move with the fixed wheel 19. Fig. 9 When the angle of view rotates counterclockwise, the rotation of the fixed wheel 20 will drive the transmission rod 7 to rotate, and finally drive the impeller 5 to rotate. When the transmission rod 7 rotates, it can cooperate with the lifting square plate 23 to deform the coil spring 24 under force and generate elastic potential energy. The connecting square rod 22 is slidably connected to the inside of the lifting square plate 23, which can ensure that when the height of the lifting square plate 23 changes, it does not interfere with the normal movement of the lifting square plate 23. When the scraper box 3 drives the impeller 5 to reset, the transmission rod 7 is also in the reset state at this time. The reset of the transmission rod 7 will gradually end the pulling of the nylon rope 21, and the coil spring 24 will gradually release the elastic potential energy, thereby driving the transmission rod 7 to rotate in the opposite direction. It should be noted that the elastic potential energy of the coil spring 24 is sufficient to support the reversal of the impeller 5 and the transmission rod 7. When the transmission rod 7 reverses, it will drive the fixed wheel 20 to drive the nylon rope 21 to continue to be wound around its outer side, ensuring the normal operation of the next work. As the zinc oxide film and particles of the zinc-containing liquid inside the scraper box 3 gradually increase, the zinc oxide film and particles of the zinc-containing liquid will flow into the bottom box 27. At this time, the zinc oxide film and particles of the zinc-containing liquid inside the bottom box 27 and the scraper box 3 can be drawn away through the recovery mechanism, and a simple filtration is performed. The filtered particles are blocked, and the zinc in the zinc oxide film is then returned to the inside of the zinc tank 1 through the ceramic fiber hose 26, thereby achieving the purpose of resource utilization; Start the high-temperature gear pump 29. When the high-temperature gear pump 29 is running, the zinc oxide film and particles of the zinc-containing liquid located inside the bottom box 27 will be drawn out through the ceramic fiber hose 28. It should be noted that the ceramic fiber hose 28 is made of high-temperature resistant material. The high-temperature gear pump 29 will filter the zinc oxide film and particles of the zinc-containing liquid drawn out through the pre-filter, and then transport them back to the inside of the zinc tank 1 through the ceramic fiber hose 1 26; The setting of the guide block 30 can make the zinc oxide film and particles in the zinc-containing liquid inside the scraper box 3 flow to the inside of the bottom box 27 under the action of gravity, which is convenient for the high-temperature gear pump 29 to extract.

[0044] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An automated processing device for hot-dip galvanized steel sheets for automobiles, comprising a zinc tank (1), wherein a hanger (2) for lifting the steel sheet is arranged at the top of the zinc tank (1), wherein: Also includes: A scraper box (3), wherein a pair of scraper boxes (3) are provided, and the pair of scraper boxes (3) are both provided inside the zinc trough (1); a pair of limiting rods (4) are slidably connected inside the scraper box (3); the bottom ends of the pair of limiting rods (4) are both fixedly connected to a clamping ring; the top ends of the limiting rods (4) are fixedly connected to a limiting concave rod (60); the limiting concave rod (60) is slidably connected inside to a guide plate (61); the guide plate (61) is fixedly connected to the top end of the zinc trough (1); and a threaded mechanism for driving the scraper box (3) to move horizontally is provided at the top end of the zinc trough (1); An impeller (5) is provided on the outside of a pair of scraper boxes (3). Both ends of the impeller (5) are rotatably connected to a fixed plate (6). The inside of the fixed plate (6) is rotatably connected to a transmission rod (7). The outside of the impeller (5) is fixedly connected to a sprocket wheel (8). The outside of the transmission rod (7) is fixedly connected to a sprocket wheel (9). A chain (10) is transmission-connected between the sprocket wheel (8) and the sprocket wheel (9). The outside of the zinc tank (1) is slidably connected to a guide block (11). The top end of the guide block (11) is fixedly connected to a guide tube (12). The inside of the guide tube (12) is slidably connected to a guide rod (13). The top end of the guide rod (13) is fixedly connected to a block (14). The block (14) is rotatably connected to the outside of the transmission rod (7). A linkage mechanism for driving the impeller (5) to rotate is provided on the periphery of the transmission rod (7).

2. The automated processing device for hot-dip galvanized steel sheets for automobiles according to claim 1, characterized in that: The thread mechanism comprises a motor (15), a bidirectional screw (16), a pair of threaded plates (17) and a top plate (18); the motor (15) is mounted on the top of the zinc tank (1); the bidirectional screw (16) is fixedly connected to the output end of the motor (15); the inner walls of the pair of threaded plates (17) are fixedly connected with a slider; the bidirectional screw (16) passes through the pair of threaded plates (17); the outer side of the bidirectional screw (16) is threadedly connected to the slider; and the top plate (18) is fixedly connected to the limit rod 1 (4) and the top of the threaded plate (17).

3. The automated processing device for hot-dip galvanized steel sheets for automobiles according to claim 2, characterized in that: The linkage mechanism comprises a fixed wheel 1 (19), a fixed wheel 2 (20), a nylon rope (21), a connecting square rod (22), a lifting square plate (23) and a coil spring (24); the fixed wheel 1 (19) is fixedly connected to the outside of the zinc tank (1); the fixed wheel 2 (20) is fixedly connected to the outside of the transmission rod (7); two ends of the nylon rope (21) are respectively fixedly connected to the outside of the fixed wheel 1 (19) and the fixed wheel 2 (20); the connecting square rod (22) is fixedly connected to the outside of the guide block (11); the inside of the lifting square plate (23) is slidably connected to the outside of the connecting square rod (22); and two ends of the coil spring (24) are respectively fixedly connected to the transmission rod (7) and the lifting square plate (23).

4. The automated processing device for hot-dip galvanized steel sheets for automobiles according to claim 3, characterized in that: Ceramic foam (25) is installed at the bottom ends of the pair of scraper boxes (3).

5. The automated processing device for hot-dip galvanized steel sheets for automobiles according to claim 4, characterized in that: A ceramic fiber hose (26) is provided at the top of the zinc tank (1), and a recovery mechanism for extracting liquid from the scraper box (3) is provided on the periphery of the ceramic fiber hose (26).

6. The automated processing device for hot-dip galvanized steel sheets for automobiles according to claim 5, characterized in that: The recovery mechanism comprises a bottom box (27), a second ceramic fiber hose (28), a pre-filter and a high-temperature gear pump (29); the bottom box (27) is fixedly connected to the bottom end of the scraper box (3); one end of the second ceramic fiber hose (28) is fixedly connected to the interior of the bottom box (27); one end of the second ceramic fiber hose (28) away from the bottom box (27) is fixedly connected to the water inlet of the pre-filter; the water outlet of the pre-filter is fixedly connected to the water inlet of the high-temperature gear pump (29); and the water outlet of the high-temperature gear pump (29) is fixedly connected to the first ceramic fiber hose (26).

7. The automated processing device for hot-dip galvanized steel sheets for automobiles according to claim 6, characterized in that: A guide block (30) is fixedly connected inside the pair of scraper boxes (3), and the cross section of the guide block (30) is triangular.

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