A completely chromium-free passivation device for hot-dip galvanized steel components

Abstract

The utility model discloses a completely chromium-free passivation device for hot-dip galvanized steel components, which relates to the technical field of chromium-free passivation, including a storage box and a hot-dip galvanized steel component body. The storage box is provided with a receiving assembly, and the receiving assembly includes a dual-axis motor, and the driving end of the dual-axis motor is connected to a first screw rod, and the outer wall of the first screw rod is threadedly connected to a rack. In the utility model, the left end of the dual-axis motor is started to drive the first screw rod at the left end to rotate, so that the rack at the left end moves toward the motor, and the gear drives the left connecting rod to flip downward, and the right connecting rod remains horizontal. The F-shaped nozzle moves to spray the upper and lower surfaces of the hot-dip galvanized steel component body. The left end of the dual-axis motor is reversed to flip the left connecting rod to horizontally receive the hot-dip galvanized steel component body, and then the right driving end is controlled to flip the right connecting rod downward to expose the blocked surface. The receiving assembly ensures the continuity of spraying the hot-dip galvanized steel component body and improves work efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of chromium-free passivation, in particular to a full chromium-free passivation device for hot-dip galvanized steel components. Background Art

[0002] Metal surface treatment is an effective method to improve the atmospheric corrosion resistance of steel. However, the treated layer is prone to corrosion in a humid environment, causing corrosion products to form on the surface or turning it gray, which affects the appearance and must be passivated. Currently, the most widely used is chromate passivation. The main reason is that the process is simple, low cost, and has good corrosion resistance. At present, after chromate treatment, a chromium / base metal mixed oxide film is formed, and the chromium in the film mainly exists in hexavalent and trivalent forms. The passivation solution and the passivated product do not contain chromium and chromium ions, which is called chromium-free passivation.

[0003] In the prior art, when a workpiece is sprayed with a chromium-free passivating agent, after spraying one side of the workpiece, it is necessary to turn the workpiece over with the help of a clamping device so as to spray the other side. This turning process not only increases the complexity of the operation, but more importantly, it interrupts the continuous spraying work, resulting in a significant reduction in the overall spraying efficiency. Utility Model Content

[0004] The utility model aims to provide a completely chromium-free passivation device for hot-dip galvanized steel components to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model provides a fully chromium-free passivation device for hot-dip galvanized steel components, comprising a storage box and a hot-dip galvanized steel component body. A receiving assembly is arranged on the storage box, and the receiving assembly comprises a dual-axis motor. A first screw rod is connected to the driving end of the dual-axis motor, and a rack is threadedly connected to the outer wall of the first screw rod. A connecting rod is arranged above the rack, a gear is installed on the outer wall of the connecting rod, and a receiving rod is installed on the outer wall of the connecting rod.

[0006] Furthermore, an L-shaped support plate and a first support plate are installed on the outer wall of the storage box, and the connecting rod is rotatably connected between the L-shaped support plate and the first support plate.

[0007] Furthermore, a fixing block is installed on the outer wall of the dual-axis motor, and the fixing block is fixedly installed on the outer wall of the storage box. Limiting rods are installed on both sides of the fixing block, and the rack is slidably connected to the outer wall of the limiting block rod.

[0008] Furthermore, a servo motor is provided on one side of the storage box, a second screw is installed on the driving end of the servo motor, a slider is threadedly connected to the outer wall of the second screw, a water pump is installed on the top of the slider, and an F-shaped nozzle is installed on the top of the water pump.

[0009] Furthermore, a telescopic water pipe is installed between the storage box and the slider, and the interiors of the slider and the F-shaped nozzle are both arranged to be hollow.

[0010] Furthermore, the L-shaped support plate, the first support plate, the connecting rod and the receiving rod are all made of polypropylene.

[0011] Furthermore, a hot-dip galvanized steel component body is provided on the top of the receiving rod, and the receiving rods are arranged in an array on the connecting rod.

[0012] Furthermore, a mounting block is installed at one end of the receiving rod, and a plurality of hexagonal bolts are threadedly connected to the outer wall of the mounting block, and the mounting block is fixedly installed on the connecting rod by the hexagonal bolts.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, the left end of the double-axis motor is started to drive the first screw rod at the left end to rotate, so that the rack at the left end moves toward the motor, and the gear drives the left connecting rod to flip downward, while the right connecting rod remains horizontal. The F-shaped nozzle moves to spray the upper and lower surfaces of the hot-dip galvanized steel component body. The left end of the double-axis motor is reversed to flip the left connecting rod to horizontally receive the hot-dip galvanized steel component body, and then the right driving end is controlled to flip the right connecting rod downward to expose the blocked surface. The receiving assembly ensures the continuity of the spraying of the hot-dip galvanized steel component body, thereby improving work efficiency.

[0015] 2. In the utility model, the user can rotate the hexagonal bolt to adjust the position of the receiving rod, and can also increase or decrease the number of receiving rods according to the size of the hot-dip galvanized steel component body, thereby performing better chromium-free passivation treatment on the hot-dip galvanized steel component body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a side view of the overall structure of the utility model;

[0018] Figure 3 for Figure 1 A magnified view of the structure at center A;

[0019] Figure 4 for Figure 1 A magnified view of the structure at point B.

[0020] In the figure: 1. Storage box;

[0021] 2. Receiver assembly; 201. Dual-axis motor; 202. First screw rod; 203. Rack; 204. Connecting rod; 205. Receiver rod; 206. Gear;

[0022] 3. Mounting block; 4. Hexagonal bolt; 5. L-shaped support plate; 6. Servo motor; 7. Second screw rod; 8. Slider; 9. Telescopic water pipe; 10. Water pump; 11. F-shaped nozzle; 12. First support plate; 13. Hot-dip galvanized steel component body; 14. Fixing block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0025] See also Figure 1-Figure 4 As shown, a completely chromium-free passivation device for hot-dip galvanized steel components includes a storage box 1 and a hot-dip galvanized steel component body 13. A receiving assembly 2 is arranged on the storage box 1. The receiving assembly 2 includes a dual-axis motor 201. The driving end of the dual-axis motor 201 is connected to a first screw rod 202. The outer wall of the first screw rod 202 is threadedly connected to a rack 203. A connecting rod 204 is arranged above the rack 203. A gear 206 is fixedly installed on the outer wall of the connecting rod 204. A receiving rod 205 is installed on the outer wall of the connecting rod 204.

[0026] Move the F-shaped nozzle 11 to one side of the storage box 1 so that the F-shaped nozzle 11 will not interfere with the operation of the receiving component 2, start the left driving end of the dual-axis motor 201 to drive the left first screw 202 to rotate, so that the left end rack 203 moves toward the direction of the dual-axis motor 201, the rack 203 is engaged with the gear 206, and the gear 206 drives the left connecting rod 204 and the gear 206 to rotate. At this time, the right connecting rod 204 and the receiving rod 205 thereon remain horizontal, and the F-shaped nozzle 11 moves left and right, and the chromium-free passivator is sprayed on the upper and lower surfaces of the hot-dip galvanized steel component body 13.

[0027] Start the left driving end of the double-axis motor 201 to rotate in the opposite direction, so that the left connecting rod 204 and the receiving rod 205 are flipped upward to the horizontal direction to receive the hot-dip galvanized steel component body 13, and then control the other driving end of the double-axis motor 201 to make the right connecting rod 204 and the receiving rod 205 flip downward to expose the side previously blocked by the left receiving rod 205, so that the F-shaped nozzle 11 can spray the hot-dip galvanized steel component body 13 more evenly and comprehensively, and the receiving assembly 2 ensures the continuity of spraying the hot-dip galvanized steel component body 13 and improves work efficiency.

[0028] See also Figure 1-2 An L-shaped support plate 5 and a first support plate 12 are installed on the outer wall of the storage box 1, and the connecting rod 204 is rotatably connected between the L-shaped support plate 5 and the first support plate 12.

[0029] The addition of the L-shaped support plate 5 and the first support plate 12 provides a support point for the connecting rod 204, making the entire structure more stable. The L-shaped support plate 5 and the first support plate 12 can significantly reduce the risk of deformation or shaking caused by external forces.

[0030] See also Figure 1 A fixed block 14 is fixedly installed on the outer wall of the dual-axis motor 201, and the fixed block 14 is fixedly installed on the outer wall of the storage box 1. Limit rods are fixedly installed on both sides of the fixed block 14, and the rack 203 is slidably connected to the outer wall of the limit block rod.

[0031] The dual-axis motor 201 is fixed to the outer wall of the storage box 1 by the fixing block 14, which can ensure that the dual-axis motor 201 will not be displaced or shaken during operation, thereby greatly improving the stability of the dual-axis motor 201. The setting of the limit rod plays a role in guiding and positioning the rack 203.

[0032] See also Figure 2 A servo motor 6 is provided on one side of the storage box 1, a second screw rod 7 is installed on the driving end of the servo motor 6, a slider 8 is threadedly connected to the outer wall of the second screw rod 7, a water pump 10 is fixedly installed on the top of the slider 8, and an F-shaped nozzle 11 is fixedly installed on the top of the water pump 10.

[0033] The cooperation among the servo motor 6 , the second screw rod 7 and the slide block 8 can drive the F-shaped nozzle 11 to move horizontally in the horizontal direction, so as to facilitate uniform spraying of the hot-dip galvanized steel component body 13 .

[0034] See also Figure 2 A telescopic water pipe 9 is fixedly installed between the storage box 1 and the slider 8, and the interiors of the slider 8 and the F-shaped nozzle 11 are both arranged to be hollow.

[0035] By starting the water pump 10 , the chromium-free passivating agent solution in the storage tank 1 can be led to the interior of the slider 8 through the telescopic water pipe 9 and then sprayed out from the F-shaped nozzle 11 to spray the upper and lower surfaces of the hot-dip galvanized steel component body 13 .

[0036] See also Figure 1-2 The L-shaped support plate 5, the first support plate 12, the connecting rod 204, and the receiving rod 205 are all made of polypropylene.

[0037] The chromium-free passivating agent does not react with polypropylene, and when the receiving rod 205 contacts the chromium-free passivating agent, the stability will be higher. Polypropylene is a plastic with a relatively high hardness, and its hardness range is at a relatively high level, and has a better supporting effect on the hot-dip galvanized steel component body 13.

[0038] See also Figure 1-2 A hot-dip galvanized steel component body 13 is arranged on the top of the receiving rod 205 , and the receiving rod 205 is arranged in an array on the connecting rod 204 .

[0039] By arranging the receiving rods 205 in an array, a stable supporting structure can be formed. The receiving rods 205 arranged in an array can evenly distribute the external force to each rod member, thereby avoiding damage caused by excessive force on a single point.

[0040] See also Figure 4 A mounting block 3 is fixedly mounted on one end of the receiving rod 205 , and a plurality of hexagonal bolts 4 are threadedly connected to the outer wall of the mounting block 3 . The mounting block 3 is fixedly mounted on the connecting rod 204 through the hexagonal bolts 4 .

[0041] The user can rotate the hexagonal bolt 4 to adjust the position of the receiving rod 205, and can also increase or decrease the number of receiving rods 205 according to the size of the hot-dip galvanized steel component body 13, thereby performing better chromium-free passivation treatment on the hot-dip galvanized steel component body 13.

[0042] Working principle: Move the F-shaped nozzle 11 to one side of the storage box 1 so that the F-shaped nozzle 11 will not interfere with the operation of the receiving component 2, start the left driving end of the dual-axis motor 201 to drive the left first screw 202 to rotate, so that the left end rack 203 moves in the direction of the dual-axis motor 201, the rack 203 is engaged with the gear 206, and the gear 206 drives the left connecting rod 204 and the gear 206 to rotate. At this time, the right connecting rod 204 and the receiving rod 205 thereon remain horizontal, and the F-shaped nozzle 11 moves left and right, and the chromium-free passivator is sprayed on the upper and lower surfaces of the hot-dip galvanized steel component body 13.

[0043] Start the left driving end of the double-axis motor 201 to rotate in the opposite direction, so that the left connecting rod 204 and the receiving rod 205 are flipped upward to the horizontal direction to receive the hot-dip galvanized steel component body 13, and then control the other driving end of the double-axis motor 201 to make the right connecting rod 204 and the receiving rod 205 flip downward to expose the side previously blocked by the left receiving rod 205, so that the F-shaped nozzle 11 can spray the hot-dip galvanized steel component body 13 more evenly and comprehensively, and the receiving assembly 2 ensures the continuity of spraying the hot-dip galvanized steel component body 13 and improves work efficiency.

[0044] The user can rotate the hexagonal bolt 4 to adjust the position of the receiving rod 205, and can also increase or decrease the number of receiving rods 205 according to the size of the hot-dip galvanized steel component body 13, thereby performing better chromium-free passivation treatment on the hot-dip galvanized steel component body 13.

Claims

1. A completely chromium-free passivation device for hot-dip galvanized steel components, comprising a storage box (1) and a hot-dip galvanized steel component body (13), characterized in that: The storage box (1) is provided with a receiving assembly (2), and the receiving assembly (2) comprises a double-axis motor (201), the driving end of the double-axis motor (201) is connected to a first screw rod (202), the outer wall of the first screw rod (202) is threadedly connected to a rack (203), a connecting rod (204) is provided above the rack (203), a gear (206) is installed on the outer wall of the connecting rod (204), and a receiving rod (205) is installed on the outer wall of the connecting rod (204).

2. A completely chromium-free passivation device for hot-dip galvanized steel components as claimed in claim 1, characterized in that: An L-shaped support plate (5) and a first support plate (12) are installed on the outer wall of the storage box (1), and the connecting rod (204) is rotatably connected between the L-shaped support plate (5) and the first support plate (12).

3. A completely chromium-free passivation device for hot-dip galvanized steel components as claimed in claim 1, characterized in that: A fixing block (14) is installed on the outer wall of the dual-axis motor (201), and the fixing block (14) is fixedly installed on the outer wall of the storage box (1). Limiting rods are installed on both sides of the fixing block (14), and the rack (203) is slidably connected to the outer wall of the limiting block rod.

4. A completely chromium-free passivation device for hot-dip galvanized steel components as claimed in claim 1, characterized in that: A servo motor (6) is provided on one side of the storage box (1), a second screw rod (7) is installed on the driving end of the servo motor (6), a slider (8) is threadedly connected to the outer wall of the second screw rod (7), a water pump (10) is installed on the top of the slider (8), and an F-shaped nozzle (11) is installed on the top of the water pump (10).

5. A completely chromium-free passivation device for hot-dip galvanized steel components as claimed in claim 1, characterized in that: A telescopic water pipe (9) is installed between the storage box (1) and the slider (8), and the interiors of the slider (8) and the F-shaped nozzle (11) are both arranged to be hollow.

6. A completely chromium-free passivation device for hot-dip galvanized steel components as claimed in claim 2, characterized in that: The L-shaped support plate (5), the first support plate (12), the connecting rod (204), and the receiving rod (205) are all made of polypropylene.

7. A completely chromium-free passivation device for hot-dip galvanized steel components as claimed in claim 1, characterized in that: A hot-dip galvanized steel component body (13) is arranged on the top of the receiving rod (205), and the receiving rod (205) is arranged in an array on the connecting rod (204).

8. A completely chromium-free passivation device for hot-dip galvanized steel components as claimed in claim 1, characterized in that: A mounting block (3) is installed at one end of the receiving rod (205); a plurality of hexagonal bolts (4) are threadedly connected to the outer wall of the mounting block (3); and the mounting block (3) is fixedly mounted on the connecting rod (204) via the hexagonal bolts (4).

Images