Galvanized sheet passivation treatment device

Abstract

The invention relates to the technical field of hot galvanized sheet production, in particular to a galvanized sheet passivation treatment device. Comprising a passivation box, a three-axis moving mechanism arranged above the passivation box and a workbench connected with the output end of the three-axis moving mechanism, and further comprises a bottom plate movably arranged in the passivation box; the lowering mechanism is connected with the workbench and comprises a plurality of suction cups, two touch pressing plates and a plurality of electric push rods, the two touch pressing plates are arranged below the workbench respectively, the electric push rods are arranged on the two sides of the two electric push rods respectively, and the suction cups are connected with the lower end of the workbench respectively; the multiple limiting smearing mechanisms are connected with the passivation box, each limiting smearing mechanism comprises two downward pressing racks, two scraping plates and two cleaning rollers, the two cleaning rollers are symmetrically and rotationally arranged on the inner side of the passivation box, and the two scraping plates are arranged on the sides, away from each other, of the two cleaning rollers and abut against the cleaning rollers; the two pressing racks are arranged on the two sides of the passivation box correspondingly and connected with the output ends of the corresponding electric push rods.

Description

Technical Field

[0001] The invention relates to the technical field of hot-dip galvanized sheet production, and in particular to a galvanized sheet passivation treatment device. Background Art

[0002] When the traditional galvanized sheet is passivated, the passivation treatment device puts the galvanized sheet into the passivation solution by hanging it with a hook, but at this time, the place where the galvanized sheet contacts the hook cannot be well contacted with the passivation solution, thereby affecting its passivation effect within a specific time. The Chinese patent with announcement number CN118127494A provides a passivation device for hot-dip galvanized sheet production and a hot-dip galvanized sheet. The device is provided with a disturbance mechanism, and the disturbance plate moves up and down to drive the hot-dip galvanized sheet body to move up and down, and the fitting surface between the hot-dip galvanized sheet body and the hook is changed, so that the passivation solution can react more to the fitting surface between the hot-dip galvanized sheet body and the hook, avoiding the fact that the place where the galvanized sheet contacts the hook in the prior art cannot be well contacted with the passivation solution, thereby affecting its passivation effect within a specific time.

[0003] However, the design of the device relies on the hooking action of the hook on the galvanized sheet. If there is no perforation on the galvanized sheet, the hook may not be able to find a suitable fixing point to hook the galvanized sheet. Without a stable hooking method, the galvanized sheet is difficult to be accurately placed in the passivation device, and its correct position and posture in the passivation solution cannot be guaranteed, thus affecting the passivation process. At the same time, after the galvanized sheet is passivated, the traditional cleaning roller needs to be manually moved by the operator, with a low degree of automation. In addition, the cleaning roller must be moved away from the galvanized sheet before it sinks into the passivation solution, and the cleaning roller must be moved close to the galvanized sheet after the passivation of the galvanized sheet is completed. This process is extremely cumbersome and needs to be improved.

[0004] To this end, we need to design passivation treatment devices for galvanized sheets of different shapes to ensure that the galvanized sheets can be fully covered by the passivation liquid during the passivation process. Summary of the invention

[0005] Based on this, it is necessary to provide a galvanized sheet passivation treatment device to address the existing technical problems.

[0006] In order to solve the problems of the prior art, the technical solution adopted by the present invention is: A galvanized sheet passivation treatment device comprises a passivation box, a three-axis moving mechanism arranged above the passivation box and a workbench connected to the output end of the three-axis moving mechanism, and also comprises: A bottom plate, movably arranged inside the passivation box; The lowering mechanism is connected to the workbench and includes a plurality of suction cups, two touch-pressure plates and a plurality of electric push rods. The two touch-pressure plates are respectively arranged at the two ends below the workbench, and the plurality of electric push rods are respectively arranged in a symmetrical array on both sides of the two electric push rods. The plurality of suction cups are respectively connected to the lower end of the workbench and drive the plate to move by suction. A plurality of position-limiting smearing mechanisms are respectively connected to the passivation box, and the position-limiting smearing mechanisms include two downward pressure racks, two scrapers and two cleaning rollers. The two cleaning rollers are symmetrically arranged to rotate inside the passivation box, the two scrapers are respectively arranged on the side away from the two cleaning rollers and abut against the cleaning rollers, and the two downward pressure racks are respectively arranged on both sides of the passivation box and abut against the output ends of the corresponding electric push rods.

[0007] Furthermore, a plurality of return springs are arranged at the lower end of the bottom plate, the upper ends of the return springs are against the lower end of the bottom plate, and the lower ends are against the bottom of the passivation box, and a plurality of leakage holes are formed at equal intervals on the bottom plate.

[0008] Furthermore, the lowering mechanism also includes a dual-axis motor, two first bevel teeth, two second bevel teeth, two first pulleys, two second pulleys, two sliding screws and four telescopic sleeves. The dual-axis motor is fixedly connected to the workbench. The two first bevel teeth are symmetrically arranged on both sides of the dual-axis motor through a bevel gear rack for rotation. The two first bevel teeth are respectively coaxially fixed to the two output ends of the dual-axis motor, the two second bevel teeth are respectively meshed with the two first bevel teeth and are rotatably connected to the corresponding bevel gear racks, the two first pulleys are respectively coaxially fixed to the two second bevel teeth, the two second pulleys are respectively rotatably connected to the upper end of the workbench and are transmission connected to the two first pulleys through belts, the two sliding screws are respectively threadedly connected to the two second pulleys through screw seats, and telescopic sleeves are respectively arranged on both sides of each sliding screw, the upper end of the telescopic sleeve is fixedly connected to the workbench, and the lower end is fixedly connected to the touch plate.

[0009] Furthermore, the position-limiting smearing mechanism also includes two slag collecting boxes, which are respectively fixed to the two scrapers, and each scraper is provided with a plurality of liquid return holes in an array at equal intervals.

[0010] Furthermore, the limiting smearing mechanism also includes two limiting rollers, two limiting wheels, four pressing gears, two connecting frames, two pressing springs and four deflection mechanisms, the two limiting rollers are respectively arranged under the two cleaning rollers, the two limiting rollers are respectively rotatably connected to the passivation box, the two limiting wheels are respectively rotatably connected to the inner wall of the passivation box through wheel seats, and the plate drives the plate and the two limiting wheels to be rotatably connected when the workbench moves downward, and pressing gears are rotatably arranged on both sides of each pressing rack, the pressing gears are rotatably connected to the passivation box and are coaxially fixed with the ends of the cleaning rollers, the pressing racks are meshed with adjacent pressing gears, the two connecting frames are respectively fixedly connected to the two pressing racks, and the two ends of each connecting frame are respectively connected to the corresponding deflection mechanisms, the two pressing springs are respectively arranged at the lower ends of the two pressing racks, the upper ends of the pressing springs are fixedly connected to the pressing racks, and the lower ends are fixedly connected to the passivation box.

[0011] Furthermore, the deflection mechanism includes a traction seat, a fixed seat, two traction claws and a number of return springs. The traction seat is fixedly connected to the connecting frame, the fixed seat is fixedly connected to the middle part of the traction seat, and a number of return springs are respectively arranged on both sides of the traction seat. One end of the return spring is fixedly connected to the traction seat, and the other end is fixedly connected to the corresponding traction claw. The two traction claws are symmetrically arranged inside the traction seat, and the upper parts of the two traction claws are respectively hinged to the traction seat.

[0012] Furthermore, the deflection mechanism also includes a lifting seat, a lifting spring, a lifting shaft, a base and two first limit frames. The lifting seat is arranged below the traction seat and is slidably connected to the passivation box through a slide rail. The base is arranged below the lifting seat and is fixedly connected to the passivation box. The upper end of the lifting shaft is fixedly connected to the lifting seat, and the lower end is slidably connected to the base. The lifting spring is sleeved on the outside of the lifting shaft, the upper end of the lifting spring is fixedly connected to the lifting seat, and the lower end is fixedly connected to the base. When the traction seat moves downward to the extreme position, the lifting seat abuts against the lower ends of the two traction claws.

[0013] Furthermore, the deflection mechanism also includes a connecting seat, a first tension spring, a second rack, an articulating contact, a second plug rod, a second spring and a second limit frame. The first tension spring is arranged above the traction seat, the upper end of the first tension spring is fixedly connected to the passivation box, and the lower end is fixedly connected to the second rack, the connecting seat is fixedly connected to the lower end of the second rack, the second plug rod is slidably connected to the connecting seat, one end of the second spring is fixedly connected to the second plug rod, and the other end is fixedly connected to the connecting seat, the articulating contact is fixedly connected to the lower end of the connecting seat and abuts against the upper ends of the two traction claws, and the second limit frame is arranged on the side of the second rack away from the pressing rack and is fixedly connected to the passivation box.

[0014] Furthermore, the deflection mechanism also includes a second gear and a third gear, the second gear is rotatably connected to the passivation box and meshes with the second rack, the third gear is rotatably connected to the passivation box and meshes with the second gear, and the third gear is fixedly connected to the end of the scraper.

[0015] Furthermore, the deflection mechanism also includes a positioning seat, a first spring, a first plunger, a first rack, a first gear, a ratchet, a reversing gear, a trigger gear and a trigger rack. The positioning seat is fixedly connected to the passivation box, the first plunger is slidably connected to the positioning seat, one end of the first spring is fixedly connected to the first plunger, and the other end is fixedly connected to the positioning seat, the first rack is fixedly connected to the first plunger and is slidably connected to the side of the positioning seat away from the passivation box, the first gear is rotatably connected to the positioning seat and meshes with the first rack, the inner ring of the ratchet is coaxially fixed to the first gear, the reversing gear is coaxially fixed to the outer ring of the ratchet, the trigger gear is rotatably connected to the positioning seat and meshes with the reversing gear, the trigger rack is fixedly connected to the connecting frame and meshes with the trigger gear, and the end of the first plunger close to the second plunger is slidably matched through an inclined surface.

[0016] Compared with the prior art, the present invention has the following beneficial effects: First, the device uses suction cups to lift and lower the panels. Compared with using hooks to pull the panels to move, the suction cups will not damage the outer wall of the panels, greatly improving the quality of the panels after passivation. Second: the device cleans the cleaning roller by setting a scraper, and in the process of processing impurities on the cleaning roller, when the plate moves downward, the scraper and the cleaning roller are separated, and when the plate moves upward, the scraper and the cleaning roller are in contact, so as to avoid secondary contamination of the cleaning roller by impurities remaining on the scraper after the scraper processes the impurities on the cleaning roller; Third: This device ensures that the plate can be completely immersed in the passivation liquid of the passivation box by setting limiting rollers and limiting wheels, preventing the plate from moving significantly during the passivation process, thereby improving the passivation quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment; Figure 2 is a front view of an embodiment; Figure 3 yes Figure 2 A magnified view of the structure at center; Figure 4 is a front half-section view of an embodiment; Figure 5 yes Figure 4 A magnified view of the structure at B in the middle; Figure 6 is a half-section view of the three-dimensional structure of an embodiment; Figure 7 yes Figure 6 A magnified view of the structure at C in the middle; Figure 8 yes Figure 6 A magnified view of the structure at D in the middle; Fig. 9 yes Figure 6Enlarged view of the structure at E in the middle; Fig.10 yes Figure 6 A magnified view of the structure at F in the middle; Fig.11 It is a partial structural schematic diagram of an embodiment; Fig.12 yes Fig.11 A magnified view of the structure at G in FIG. Fig.13 is a schematic diagram of the three-dimensional structure of the deflection mechanism in the embodiment; Fig.14 Schematic diagram of the three-dimensional structure of the traction claw in the embodiment.

[0018] The numbers in the figure are: 1. Passivation box; 2. Plate; 3. Bottom plate; 4. Leakage hole; 5. Reset spring; 6. Three-axis moving mechanism; 7. Workbench; 8. Lowering mechanism; 9. Double-axis motor; 10. First bevel gear; 11. Second bevel gear; 12. First pulley; 13. Second pulley; 14. Sliding screw; 15. Telescopic sleeve; 16. Touch plate; 17. Electric push rod; 18. Suction cup; 19. Limiting smearing mechanism; 20. Cleaning roller; 21. Scraper; 22. Liquid return hole; 23. Slag collecting box; 24. Pressing rack; 25. Pressing spring; 26. Limiting roller; 27. Limiting wheel; 28. Pressing gear; 29. ​​Connecting frame; 30 , deflection mechanism; 31, positioning seat; 32, first spring; 33, first plug rod; 34, first rack; 35, first gear; 36, ratchet; 37, reversing gear; 38, trigger gear; 39, trigger rack; 40, first tension spring; 41, second rack; 42, second gear; 43, third gear; 44, connecting seat; 45, second plug rod; 46, second spring; 47, second limiting frame; 48, engagement contact; 49, return spring; 50, traction seat; 51, fixed seat; 52, traction claw; 53, lifting seat; 54, first limiting frame; 55, lifting spring; 56, lifting shaft; 57, base. DETAILED DESCRIPTION

[0019] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] refer to Figures 1 to 14 A galvanized sheet passivation treatment device comprises a passivation box 1, a three-axis moving mechanism 6 arranged above the passivation box 1 and a workbench 7 connected to the output end of the three-axis moving mechanism 6, and also comprises: Base plate 3 (such as Figure 4 As shown), it is movably arranged inside the passivation box 1; The lowering mechanism 8 is connected to the workbench 7 and includes a plurality of suction cups 18, two touch-pressure plates 16 and a plurality of electric push rods 17. The two touch-pressure plates 16 are respectively arranged at the two ends below the workbench 7 (combined with Figure 6 and Fig.10 ), a plurality of electric push rods 17 are symmetrically arranged on both sides of the upper end of the workbench 7, and a plurality of suction cups 18 are respectively connected to the lower end of the workbench 7 and drive the plate 2 to move by suction; A plurality of position-limiting smearing mechanisms 19 are respectively connected to the passivation box 1. The position-limiting smearing mechanisms 19 include two downward pressure racks 24, two scrapers 21 and two cleaning rollers 20. The two cleaning rollers 20 are symmetrically rotatably arranged on the inner side of the passivation box 1. The two scrapers 21 are respectively arranged on the side away from the two cleaning rollers 20 and abut against the cleaning rollers 20. The two downward pressure racks 24 are respectively arranged on both sides of the passivation box 1 and abut against the output ends of the corresponding electric push rods 17.

[0021] When the device is in operation, the operator first hangs a plurality of plates 2 under the workbench 7 in sequence, and at this time, a plurality of suction cups 18 can grab the plates 2. When passivation is performed, the three-axis moving mechanism 6 first drives the workbench 7 to move downward, and the passivation liquid in the passivation box 1 processes the plates 2. During this process, a plurality of electric push rods 17 drive a plurality of downward pressing racks 24 to move downward (refer to Figure 5 ), and a plurality of suction cups 18 release a plurality of panels 2 (refer to Figure 8 ), at this time, the lower ends of the several plates 2 and the workbench 7 are separated, and the touch plate 16 will continue to move downward until the plates 2 are completely sunk into the passivation box 1.

[0022] When the plate 2 moves downward, the scrapers 21 arranged on both sides of the plate 2 will deflect in the direction away from the cleaning roller 20, and when the plate 2 moves upward, the scrapers 21 arranged on both sides of the plate 2 will deflect in the direction close to the cleaning roller 20, ensuring that after the cleaning roller 20 cleans the plate 2, the scrapers 21 will scrape off the impurities attached to the cleaning roller 20.

[0023] In order to facilitate the subsequent resetting of the bottom plate 3 after it is lowered, the following features are also specifically provided: A plurality of return springs 5 ​​are arranged at the lower end of the bottom plate 3, the upper ends of the return springs 5 ​​are against the lower end of the bottom plate 3, and the lower ends are against the bottom of the passivation box 1 (refer to Figure 4 ), a plurality of leakage holes 4 are formed at equal intervals on the bottom plate 3. When the bottom plate 3 moves downward, the bottom plate 3 will squeeze the plurality of return springs 5, and the plurality of return springs 5 ​​will accumulate elastic potential energy after being squeezed, so that when the bottom plate 3 needs to move upward, the return springs 5 ​​that have restored their deformation will push the bottom plate 3 to move upward. When the bottom plate 3 moves, the plurality of leakage holes 4 facilitate the passivation liquid to pass through the bottom plate 3, preventing the passivation liquid from preventing the bottom plate 3 from moving.

[0024] In order to supplement the specific structure of the lowering mechanism 8, the following features are also specifically provided: The lowering mechanism 8 also includes a double-axis motor 9, two first bevel gears 10, two second bevel gears 11, two first pulleys 12, two second pulleys 13, two sliding screws 14 and four telescopic sleeves 15. The double-axis motor 9 is fixedly connected to the workbench 7 (such as Fig.11 As shown, the two first bevel gears 10 are symmetrically arranged on both sides of the dual-axis motor 9 through the rotation of the bevel gear rack (refer to Figure 8 ), the two first bevel teeth 10 are respectively coaxially fixedly connected to the two output ends of the dual-axis motor 9, the two second bevel teeth 11 are respectively meshed with the two first bevel teeth 10 and are rotatably connected to the corresponding bevel gear racks, the two first pulleys 12 are respectively coaxially fixedly connected to the two second bevel teeth 11, the two second pulleys 13 are respectively rotatably connected to the upper end of the workbench 7 and are transmission connected to the two first pulleys 12 through belts, the two sliding screws 14 are respectively threadedly connected to the two second pulleys 13 through screw seats, and telescopic sleeve rods 15 are respectively provided on both sides of each sliding screw 14, the upper end of the telescopic sleeve rod 15 is fixedly connected to the workbench 7, and the lower end is fixedly connected to the touch plate 16. After the dual-axis motor 9 is started, the dual-axis motor 9 will drive the two second bevel teeth 11 to rotate through the two first bevel teeth 10, and the two second bevel teeth 11 will drive the two second pulleys 13 to rotate through the two first pulleys 12. The two second pulleys 13 will drive the touch plate 16 to move through the two sliding screws 14, and each touch plate 16 will be limited by two telescopic sleeves 15 when moving.

[0025] In order to supplement the specific structure of the position-limiting smearing mechanism 19, the following features are also specifically provided: The position-limiting smearing mechanism 19 further includes two slag collecting boxes 23, which are respectively fixedly connected to the two scrapers 21, and each scraper 21 is provided with a plurality of liquid return holes 22 in an array at equal intervals. After the scraper 21 scrapes off the debris on the cleaning roller 20, the debris will remain in the slag collecting box 23, and the remaining passivation liquid will pass through the liquid return holes 22 and fall downward into the passivation box 1, thereby realizing the recovery of the passivation liquid.

[0026] In order to limit the movement of the plate 2, the following features are also specifically provided: The limiting smearing mechanism 19 also includes two limiting rollers 26, two limiting wheels 27, four pressing gears 28, two connecting frames 29, two pressing springs 25 and four deflection mechanisms 30. The two limiting rollers 26 are respectively arranged below the two cleaning rollers 20. The two limiting rollers 26 are respectively rotatably connected to the passivation box 1. The two limiting wheels 27 are respectively rotatably connected to the inner wall of the passivation box 1 through the wheel seat. When the plate 2 moves downward on the workbench 7, it drives the plate 2 to be rotatably connected to the two limiting wheels 27. The two sides of each pressing rack 24 are respectively rotatably provided with pressing gears 28. The pressing gears 28 are rotatably connected to the passivation box 1 and are coaxially fixed to the end of the cleaning roller 20 (reference Figure 3 and Fig.12 ), the pressing rack 24 is meshed with the adjacent pressing gear 28, the two connecting frames 29 are respectively connected to the two pressing racks 24, the two ends of each connecting frame 29 are respectively connected to the corresponding deflection mechanism 30, and the two pressing springs 25 are respectively arranged at the lower ends of the two pressing racks 24 (such as Fig.11 As shown in the figure, the upper end of the pressing spring 25 is fixedly connected to the pressing rack 24, and the lower end is fixedly connected to the passivation box 1. When the two pressing racks 24 move downward, the pressing racks 24 will drive the pressing gear 28 meshing with them to rotate, and when the pressing gear 28 rotates, it will drive the cleaning roller 20 fixedly connected with it to rotate (in this process, the contact mode between the cleaning roller 20 and the plate 2 can reduce the scratches and damage to the surface of the plate 2). At this time, the two cleaning rollers 20 rotate in opposite directions, and the movement of the pressing rack 24 will drive the connecting frame 29 to move, and when the connecting frame 29 moves, it will drive the deflection mechanism 30 to start, and when the plate 2 contacts the limiting roller 26, the plate 2 will be limited by the two limiting rollers 26 to prevent slippage.

[0027] In order to supplement the specific structure of the deflection mechanism 30, the following features are also specifically provided: The deflection mechanism 30 includes a traction seat 50, a fixed seat 51, two traction claws 52 and a plurality of return springs 49. The traction seat 50 is fixedly connected to the connecting frame 29, and the fixed seat 51 is fixedly connected to the middle part of the traction seat 50 (refer to Fig.14 ), a plurality of return springs 49 are respectively arranged on both sides of the traction seat 50, one end of the return spring 49 is fixedly connected to the traction seat 50, and the other end is fixedly connected to the corresponding traction claw 52, ​​the two traction claws 52 are symmetrically arranged inside the traction seat 50, and the upper parts of the two traction claws 52 are respectively hinged to the traction seat 50. When the connecting frame 29 moves, the connecting frame 29 will drive the two traction claws 52 to move through the traction seat 50.

[0028] In order to realize that the two traction claws 52 are released when the traction seat 50 moves downward to the extreme position, the following features are also provided: The deflection mechanism 30 further includes a lifting seat 53, a lifting spring 55, a lifting shaft 56, a base 57 and two first limit frames 54. The lifting seat 53 is arranged below the traction seat 50 and is slidably connected to the passivation box 1 through a slide rail. The base 57 is arranged below the lifting seat 53 and is fixedly connected to the passivation box 1. The upper end of the lifting shaft 56 is fixedly connected to the lifting seat 53, and the lower end is slidably connected to the base 57. The lifting spring 55 is sleeved on the outside of the lifting shaft 56. The upper end of the lifting spring 55 is fixedly connected to the lifting seat 53, and the lower end is fixedly connected to the base 57 (refer to Fig.13 ), the lifting seat 53 abuts against the lower ends of the two traction claws 52 when the traction seat 50 moves downward to the limit position. When the traction seat 50 moves downward until the two traction claws 52 abut against the upper ends of the lifting seat 53, the two traction claws 52 will deflect with the hinge point with the traction seat 50 as the axis, and then as the traction seat 50 continues to move downward, the lifting spring 55 will be compressed, and the lifting shaft 56 will pass through the base 57 for position limiting. In this process, the anti-deformation capacity of the lifting spring 55 is greater than the total anti-deformation capacity of the return springs 49, so as to prevent the traction claw 52 from being unable to deflect because the lifting spring 55 deforms before the traction claw 52 when the two traction claws 52 and the lifting seat 53 abut against each other.

[0029] In order to further supplement the specific structure of the deflection mechanism 30, the following features are also specifically provided: The deflection mechanism 30 also includes a connection seat 44, a first tension spring 40, a second rack 41, an engagement contact 48, a second insertion rod 45, a second spring 46 and a second limit frame 47. The first tension spring 40 is arranged above the traction seat 50. The upper end of the first tension spring 40 is fixedly connected to the passivation box 1, and the lower end is fixedly connected to the second rack 41. The connection seat 44 is fixedly connected to the lower end of the second rack 41, and the second insertion rod 45 is slidably connected to the connection seat 44 (refer to Fig.14 ), one end of the second spring 46 is fixedly connected to the second insertion rod 45, and the other end is fixedly connected to the connection seat 44, the engagement contact 48 is fixedly connected to the lower end of the connection seat 44 and abuts against the upper ends of the two traction claws 52, and the second limit frame 47 is arranged on the side of the second rack 41 away from the pressing rack 24 and is fixedly connected to the passivation box 1. When the connection frame 29 drives the traction seat 50 to move downward, the two traction claws 52 will realize the downward movement of the connection seat 44 by holding the engagement contact 48, and the connection seat 44 will drive the second rack 41 to move when it moves downward, and the movement of the second rack 41 will drive the first tension spring 40 to deform, so that when the first tension spring 40 recovers its deformation, it drives the second rack 41 to move upward and reset, and the second limit frame 47 limits the highest position of the connection seat 44 when the second rack 41 drives the connection seat 44 to move upward.

[0030] In order to facilitate the scraper 21 to better act on the cleaning roller 20, the following features are also specifically provided: The deflection mechanism 30 further includes a second gear 42 and a third gear 43, wherein the second gear 42 is rotatably connected to the passivation box 1 and meshes with the second rack 41, the third gear 43 is rotatably connected to the passivation box 1 and meshes with the second gear 42, and the third gear 43 is fixedly connected to the end of the scraper 21 (refer to Fig.12 ). When the second rack 41 moves, the second rack 41 drives the third gear 43 to rotate through the second gear 42, and the rotation of the third gear 43 drives the scraper 21 to deflect. When the second rack 41 moves downward, the scrapers 21 arranged on both sides of the plate 2 will deflect away from the cleaning roller 20 to prevent the scrapers 21 from contacting the cleaning roller 20 and causing the cleaning roller 20 to be contaminated again. When the second rack 41 moves upward, the scrapers 21 arranged on both sides of the plate 2 will deflect toward the cleaning roller 20 to ensure that after the cleaning roller 20 cleans the plate 2, the scrapers 21 will scrape off the impurities attached to the cleaning roller 20.

[0031] In order to limit the position of the connection seat 44, the following features are also specifically provided: The deflection mechanism 30 further includes a positioning seat 31, a first spring 32, a first insertion rod 33, a first rack 34, a first gear 35, a ratchet 36, a reversing gear 37, a trigger gear 38 and a trigger rack 39. The positioning seat 31 is fixedly connected to the passivation box 1, and the first insertion rod 33 is slidably connected to the positioning seat 31 (refer to Fig.13 ), one end of the first spring 32 is fixedly connected to the first plug rod 33, and the other end is fixedly connected to the positioning seat 31, the first rack 34 is fixedly connected to the first plug rod 33 and is slidably connected to the side of the positioning seat 31 away from the passivation box 1, the first gear 35 is rotatably connected to the positioning seat 31 and meshes with the first rack 34, the inner ring of the ratchet 36 is coaxially fixedly connected to the first gear 35, the reversing gear 37 is coaxially fixedly connected to the outer ring of the ratchet 36, the trigger gear 38 is rotatably connected to the positioning seat 31 and meshes with the reversing gear 37, the trigger rack 39 is fixedly connected to the connecting frame 29 and meshes with the trigger gear 38, and the end of the first plug rod 33 close to the second plug rod 45 is slidably matched through an inclined surface. When the connecting frame 29 drives the trigger rack 39 to move to the side of the positioning seat 31, as the first plug rod 33 and the second plug rod 45 are against each other, the second spring 46 will be compressed, and then the second plug rod 45 will move away from the first plug rod 33. When the first tension spring 40 drives the first rack 34 to move upward, the first plug rod 33 and the second plug rod 45 are against each other. When the first plug rod 33 does not move, the connecting seat 44 will not continue to move upward.

[0032] When the pressure rack 24 moves upward, the connecting frame 29 will drive the trigger rack 39 to mesh with the trigger gear 38, and the trigger gear 38 will drive the outer ring of the ratchet 36 to rotate through the reversing gear 37. At this time, the outer ring and the inner ring of the ratchet 36 can rotate synchronously (similarly, when the pressure rack 24 moves downward, because the outer ring and the inner ring of the ratchet 36 cannot rotate synchronously, the reversing gear 37 and the first gear 35 will rotate relative to each other), so the reversing gear 37 will drive the first gear 35 to rotate through the ratchet 36, and the first gear 35 will drive the first plug rod 33 to move away from the second plug rod 45 through the first rack 34 until the second plug rod 45 moves upward and away from the first plug rod 33.

[0033] The working principle of the device is that when the device is in operation, the operator first hangs a number of plates 2 under the workbench 7 in sequence, and at this time, a number of suction cups 18 can grab the plates 2. When passivation is performed, the three-axis moving mechanism 6 first drives the workbench 7 to move downward, and then the number of plates 2 set under the workbench 7 will be sunk into the passivation box 1. The passivation liquid in the passivation box 1 will process the plates 2. In this process, the movement of the plates 2 is divided into two strokes: In the first stroke, the lower end of the plate 2 will first abut against the upper end of the bottom plate 3, and the two touch-pressure plates 16 will also abut against the upper end of the bottom plate 3, and then the three-axis moving mechanism 6 drives the workbench 7 to descend. When the lower end of the workbench 7 abuts against the upper end of the passivation box 1, the second stroke is then entered.

[0034] In the second stroke, several electric push rods 17 are started, and then several electric push rods 17 will continue to drive several pressing racks 24 to move downward, and several suction cups 18 will release several plates 2. At this time, several plates 2 are separated from the lower end of the workbench 7, and the touch pressure plate 16 will continue to move downward until the plate 2 is completely sunk into the passivation box 1.

[0035] When the plate 2 moves downward, the scrapers 21 arranged on both sides of the plate 2 will deflect in the direction away from the cleaning roller 20, avoiding the impurities remaining on the scrapers 21 from causing secondary contamination to the cleaning roller 20 and affecting the effect of the passivation treatment. When the plate 2 moves upward, the scrapers 21 arranged on both sides of the plate 2 will deflect in the direction close to the cleaning roller 20, ensuring that the scrapers 21 will scrape off the impurities attached to the cleaning roller 20 after the cleaning roller 20 cleans the plate 2.

[0036] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A galvanized sheet passivation treatment device, comprising a passivation box (1), a three-axis moving mechanism (6) arranged above the passivation box (1), and a workbench (7) connected to the output end of the three-axis moving mechanism (6), characterized in that: Also includes: A bottom plate (3) movably arranged inside the passivation box (1); The lowering mechanism (8) is connected to the workbench (7), and comprises a plurality of suction cups (18), two touch pressure plates (16) and a plurality of electric push rods (17). The two touch pressure plates (16) are respectively arranged at two ends below the workbench (7), and the plurality of electric push rods (17) are respectively arranged in a symmetrical array on both sides of the upper end of the workbench (7). The plurality of suction cups (18) are respectively connected to the lower end of the workbench (7) and drive the plate (2) to move by suction. A plurality of position-limiting smearing mechanisms (19) are respectively connected to the passivation box (1). The position-limiting smearing mechanisms (19) include two downward pressing racks (24), two scrapers (21) and two cleaning rollers (20). The two cleaning rollers (20) are symmetrically arranged to rotate inside the passivation box (1). The two scrapers (21) are respectively arranged on the side away from the two cleaning rollers (20) and abut against the cleaning rollers (20). The two downward pressing racks (24) are respectively arranged on both sides of the passivation box (1) and abut against the output ends of the corresponding electric push rods (17).

2. A galvanized sheet passivation treatment device according to claim 1, characterized in that: A plurality of return springs (5) are arranged at the lower end of the bottom plate (3); the upper ends of the plurality of return springs (5) abut against the lower end of the bottom plate (3); and the lower ends of the plurality of return springs abut against the bottom of the passivation box (1); and a plurality of liquid leakage holes (4) are formed at equal intervals on the bottom plate (3).

3. A galvanized sheet passivation treatment device according to claim 1, characterized in that: The lowering mechanism (8) further comprises a double-axis motor (9), two first bevel teeth (10), two second bevel teeth (11), two first pulleys (12), two second pulleys (13), two sliding screws (14) and four telescopic sleeves (15); the double-axis motor (9) is fixedly connected to the workbench (7); the two first bevel teeth (10) are symmetrically arranged on both sides of the double-axis motor (9) through a bevel gear frame for rotation; the two first bevel teeth (10) are respectively coaxially fixedly connected to two output ends of the double-axis motor (9); the two second bevel teeth (11) are respectively connected to the two first bevel teeth (10) are meshed with each other and are rotatably connected to the corresponding bevel gear rack, the two first pulleys (12) are respectively coaxially fixedly connected to the two second bevel gears (11), the two second pulleys (13) are respectively rotatably connected to the upper end of the workbench (7) and are transmission-connected to the two first pulleys (12) through belts, the two sliding screws (14) are respectively threadedly connected to the two second pulleys (13) through screw seats, and telescopic sleeves (15) are respectively provided on both sides of each sliding screw (14), the upper end of the telescopic sleeve (15) is fixedly connected to the workbench (7), and the lower end is fixedly connected to the touch plate (16).

4. A galvanized sheet passivation treatment device according to claim 1, characterized in that: The position-limiting smearing mechanism (19) further comprises two slag collecting boxes (23), the two slag collecting boxes (23) being respectively fixedly connected to the two scrapers (21), and each scraper (21) is provided with a plurality of liquid return holes (22) formed in an array at equal intervals.

5. A galvanized sheet passivation treatment device according to claim 1, characterized in that: The limiting smearing mechanism (19) further comprises two limiting rollers (26), two limiting wheels (27), four pressing gears (28), two connecting frames (29), two pressing springs (25) and four deflection mechanisms (30). The two limiting rollers (26) are respectively arranged below the two cleaning rollers (20). The two limiting rollers (26) are respectively rotatably connected to the passivation box (1). The two limiting wheels (27) are respectively rotatably connected to the inner wall of the passivation box (1) via wheel seats. When the workbench (7) moves downward, the plate member (2) drives the plate member (2) to be rotatably connected to the two limiting wheels (27). Each pressing rack Downward pressure gears (28) are rotatably arranged on both sides of the (24), the downward pressure gears (28) are rotatably connected to the passivation box (1) and are coaxially fixedly connected to the end of the cleaning roller (20), the downward pressure rack (24) is meshed with the adjacent downward pressure gears (28), the two connecting frames (29) are respectively fixedly connected to the two downward pressure racks (24), the two ends of each connecting frame (29) are respectively connected to the corresponding deflection mechanism (30), the two downward pressure springs (25) are respectively arranged at the lower ends of the two downward pressure racks (24), the upper ends of the downward pressure springs (25) are fixedly connected to the downward pressure racks (24), and the lower ends are fixedly connected to the passivation box (1).

6. A galvanized sheet passivation treatment device according to claim 5, characterized in that: The deflection mechanism (30) comprises a traction seat (50), a fixed seat (51), two traction claws (52) and a plurality of return springs (49); the traction seat (50) is fixedly connected to the connecting frame (29); the fixed seat (51) is fixedly connected to the middle of the traction seat (50); a plurality of return springs (49) are respectively arranged on both sides of the traction seat (50); one end of the return spring (49) is fixedly connected to the traction seat (50) and the other end is fixedly connected to the corresponding traction claw (52); the two traction claws (52) are symmetrically arranged inside the traction seat (50); and the upper parts of the two traction claws (52) are respectively hinged to the traction seat (50).

7. A galvanized sheet passivation treatment device according to claim 6, characterized in that: The deflection mechanism (30) further comprises a lifting seat (53), a lifting spring (55), a lifting shaft (56), a base (57) and two first limit frames (54); the lifting seat (53) is arranged below the traction seat (50) and is slidably connected to the passivation box (1) via a slide rail; the base (57) is arranged below the lifting seat (53) and is fixedly connected to the passivation box (1); the upper end of the lifting shaft (56) is fixedly connected to the lifting seat (53) and the lower end is slidably connected to the base (57); the lifting spring (55) is sleeved on the outside of the lifting shaft (56); the upper end of the lifting spring (55) is fixedly connected to the lifting seat (53) and the lower end is fixedly connected to the base (57); when the traction seat (50) moves downward to the limit position, the lifting seat (53) abuts against the lower ends of the two traction claws (52).

8. A galvanized sheet passivation treatment device according to claim 6, characterized in that: The deflection mechanism (30) further comprises a connection seat (44), a first tension spring (40), a second rack (41), an engagement contact (48), a second insertion rod (45), a second spring (46) and a second limit frame (47), wherein the first tension spring (40) is arranged above the traction seat (50), the upper end of the first tension spring (40) is fixedly connected to the passivation box (1), the lower end of the first tension spring (40) is fixedly connected to the second rack (41), the connection seat (44) and the second rack (41 ), the second insertion rod (45) is slidably connected to the connecting seat (44), one end of the second spring (46) is fixedly connected to the second insertion rod (45), and the other end is fixedly connected to the connecting seat (44), the engagement contact (48) is fixedly connected to the lower end of the connecting seat (44) and abuts against the upper ends of the two traction claws (52), and the second limiting frame (47) is arranged on a side of the second rack (41) away from the pressing rack (24) and is fixedly connected to the passivation box (1).

9. A galvanized sheet passivation treatment device according to claim 8, characterized in that: The deflection mechanism (30) further comprises a second gear (42) and a third gear (43); the second gear (42) is rotatably connected to the passivation box (1) and meshes with the second rack (41); the third gear (43) is rotatably connected to the passivation box (1) and meshes with the second gear (42); and the third gear (43) is fixedly connected to the end of the scraper (21).

10. A galvanized sheet passivation treatment device according to claim 8, characterized in that: The deflection mechanism (30) further comprises a positioning seat (31), a first spring (32), a first insertion rod (33), a first rack (34), a first gear (35), a ratchet (36), a reversing gear (37), a trigger gear (38) and a trigger rack (39); the positioning seat (31) is fixedly connected to the passivation box (1); the first insertion rod (33) is slidably connected to the positioning seat (31); one end of the first spring (32) is fixedly connected to the first insertion rod (33) and the other end is fixedly connected to the positioning seat (31); the first rack (34) is fixedly connected to the first insertion rod (33) and is away from the positioning seat (31). One side of the passivation box (1) is slidably connected, the first gear (35) is rotatably connected to the positioning seat (31) and meshed with the first rack (34), the inner ring of the ratchet (36) is coaxially fixedly connected to the first gear (35), the reversing gear (37) is coaxially fixedly connected to the outer ring of the ratchet (36), the trigger gear (38) is rotatably connected to the positioning seat (31) and meshed with the reversing gear (37), the trigger rack (39) is fixedly connected to the connecting frame (29) and meshed with the trigger gear (38), and the first insertion rod (33) and the second insertion rod (45) are close to each other at one end and are slidably matched through an inclined surface.

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