Environment-friendly passivation device for hot-dip galvanized plates

Abstract

The utility model relates to the technical field of hot-dip galvanized sheet passivation, in particular to an environment-friendly passivation device for a hot-dip galvanized sheet, which comprises a bottom plate, and four fixing plates are fixedly connected to the top of the bottom plate. A bolt is rotated to drive a circular block to fix a hot-dip galvanized plate, a second motor drives an L-shaped seat to slide downwards through a second screw, the L-shaped seat drives the hot-dip galvanized plate to move downwards into a passivation box for passivation operation, a first motor drives a rectangular plate to move through a first screw, the rectangular plate drives the hot-dip galvanized plate to move backwards, and an air heater is started. Hot air generated by an air heater is sprayed out through a spray head, the hot air sprayed out of the spray head can evenly dry the hot galvanized plate along with backward movement of the hot galvanized plate, the hot galvanized plate is passivated by adopting a soaking method, the phenomenon of uneven passivation is avoided, use is not affected, large pollution is avoided, and meanwhile after passivation is completed, the hot galvanized plate can be evenly dried. And timely drying operation is facilitated, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of passivation technology for hot-dip galvanized sheets, specifically to an environmentally friendly passivation device for hot-dip galvanized sheets. Background Technology

[0002] Hot-dip galvanized steel sheets are mainly used in construction, home appliances, automobiles, machinery, electronics, and light industry. Passivation is a method of transforming the metal surface into a state that is not easily oxidized, thereby slowing down the corrosion rate of the metal. After galvanizing, the corrosion resistance of the steel sheet is greatly improved, but it still cannot meet the needs of long-term use in humid environments. To improve the durability of galvanized steel sheets, surface passivation treatment is also required.

[0003] However, the most common passivation process currently available is spraying. In practical applications, spraying often results in uneven spraying, which can cause uneven passivation on the sides of the steel plate during the passivation process, affecting its use. Furthermore, the spraying process generates significant pollution and is not environmentally friendly. Additionally, it is not convenient to perform timely drying operations after passivation, reducing work efficiency. Therefore, we propose an environmentally friendly passivation device for hot-dip galvanized steel plates to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an environmentally friendly passivation device for hot-dip galvanized sheets to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an environmentally friendly passivation device for hot-dip galvanized sheet metal, comprising a base plate, four fixing plates fixedly connected to the top of the base plate, a first screw rotatably connecting two corresponding fixing plates on their adjacent sides, a rectangular plate threadedly connected to the outer side of the first screw, a vertical rod fixedly connected to the top of the rectangular plate, a top plate fixedly connected to the top of the vertical rod, a second screw rotatably connecting the rectangular plate and the corresponding top plate, an L-shaped seat threadedly connected to the outer side of the second screw, and a passivation box fixedly connected to the top of the base plate. U-shaped plates are fixedly connected to the sides of the L-shaped bases that are close to each other. Two circular blocks are provided on the inner side of the U-shaped plates. Bolts are fixedly connected to the top of the circular blocks. The U-shaped plates are threaded onto the outside of the corresponding two bolts. A side plate is fixedly connected to the top of the base plate. A hot air blower is fixedly connected to the outside of the side plate. A rectangular tube is connected to and fixed to the air outlet of the hot air blower. Two L-shaped tubes are connected to and fixed to the front side of the rectangular tube. The side plate is fixedly fitted onto the outside of the two L-shaped tubes. A horizontal tube is connected to and fixed to the end of the L-shaped tube. Multiple nozzles are connected to and fixed to the sides of the two horizontal tubes that are close to each other.

[0006] In a further preferred embodiment, the two corresponding fixed plates are fixedly connected to the same crossbar on their sides, and the rectangular plate is slidably sleeved on the outside of the corresponding crossbar.

[0007] More preferably, the L-shaped seat is slidably sleeved on the outside of the corresponding vertical rod, and a first motor is fixedly connected to the rear side of one of the fixed plates on the rear side. The output shaft end of the first motor is fixedly connected to the rear end of one of the first screws on the right side.

[0008] More preferably, the front end of the first screw extends to the outside of the corresponding fixed plate, and a first transmission roller is fixedly sleeved on the outside of the first screw, and the two first transmission rollers are connected by the same first belt.

[0009] More preferably, an L-shaped plate is fixedly connected to the top of one of the top plates on the left side, the top end of the second screw extends above the corresponding top plate, a second motor is fixedly connected to the inner wall of the top of the L-shaped plate, and the output shaft end of the second motor is fixedly connected to the top end of one of the second screws on the left side.

[0010] More preferably, a second transmission roller is fixedly sleeved on the outer side of the second screw, and the two second transmission rollers are connected by the same second belt.

[0011] More preferably, a storage battery is fixedly connected to the top of the base plate, and multiple electric heating tubes are embedded in the rear side of the passivation box. The storage battery is electrically connected to the electric heating tubes through a conductive wire.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The rotating bolt drives the circular block to fix the hot-dip galvanized sheet; the second motor drives the L-shaped seat downwards via the second screw; the L-shaped seat moves the hot-dip galvanized sheet downwards into the passivation box for passivation; the first motor drives the rectangular plate to move via the first screw; the rectangular plate moves the hot-dip galvanized sheet backwards; the hot air blower is started, and the hot air generated by the hot air blower is sprayed out through the nozzle; as the hot-dip galvanized sheet moves backwards, the hot air sprayed from the nozzle can evenly dry the hot-dip galvanized sheet; the immersion method is used for passivation, avoiding uneven passivation, not affecting use, and avoiding significant pollution. Furthermore, after passivation, timely drying is facilitated, improving work efficiency. Attached Figure Description

[0013] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a right-view three-dimensional structural diagram of the present invention;

[0015] Figure 3This is a front view structural diagram of the present utility model;

[0016] Figure 4 for Figure 3 A magnified structural diagram of area A in the middle.

[0017] In the diagram: 1. Base plate; 2. Fixing plate; 3. First screw; 4. Rectangular plate; 5. Vertical rod; 6. Top plate; 7. Second screw; 8. L-shaped seat; 9. Passivation box; 10. U-shaped plate; 11. Circular block; 12. Bolt; 13. Side plate; 14. Hot air blower; 15. Rectangular tube; 16. L-shaped tube; 17. Horizontal tube; 18. Nozzle; 19. Horizontal rod; 20. First motor; 21. First belt; 22. L-shaped plate; 23. Second motor; 24. Second belt; 25. Battery; 26. Electric heating element. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example

[0020] Please see Figure 1-4This utility model provides a technical solution: an environmentally friendly passivation device for hot-dip galvanized sheet metal, comprising a base plate 1, four fixing plates 2 fixedly connected to the top of the base plate 1, a first screw 3 rotatably connecting corresponding pairs of fixing plates 2 on their adjacent sides, a rectangular plate 4 threadedly connected to the outer side of the first screw 3, a vertical rod 5 fixedly connected to the top of the rectangular plate 4, a top plate 6 fixedly connected to the top of the vertical rod 5, and a second screw 7 rotatably connecting the rectangular plate 4 and the corresponding top plate 6. An L-shaped seat 8 is threadedly connected to the outer side of the base plate 1. A passivation box 9 is fixedly connected to the top of the base plate 1. U-shaped plates 10 are fixedly connected to the sides of the two L-shaped seats 8 that are close to each other. Two circular blocks 11 are provided on the inner side of the U-shaped plates 10. Bolts 12 are fixedly connected to the top of the circular blocks 11. The U-shaped plates 10 are threaded onto the outer side of the corresponding two bolts 12. A side plate 13 is fixedly connected to the top of the base plate 1. A hot air blower 14 is fixedly connected to the outer side of the side plate 13. The air outlet of the hot air blower 14 is connected to and fixed with a rectangular tube 15. Two L-shaped tubes 16 are connected and fixed to the front side of the tube 15. A side plate 13 is fixedly sleeved on the outside of the two L-shaped tubes 16. A horizontal tube 17 is connected and fixed to the end of each L-shaped tube 16. Multiple nozzles 18 are connected and fixed to the sides of the two horizontal tubes 17 that are close to each other. Rotating bolt 12 drives a circular block 11 to fix the hot-dip galvanized sheet. A second motor 23 drives an L-shaped seat 8 to slide downwards via a second screw 7. The L-shaped seat 8 moves the hot-dip galvanized sheet downwards into the passivation box 9 for passivation. A first motor 20, via a first... Screw 3 drives rectangular plate 4 to move, and rectangular plate 4 drives hot-dip galvanized sheet to move backward. Hot air blower 14 is started, and hot air generated by hot air blower 14 is sprayed out through nozzle 18. As the hot-dip galvanized sheet moves backward, the hot air sprayed out by nozzle 18 can evenly dry the hot-dip galvanized sheet. The hot-dip galvanized sheet is passivated by immersion, which avoids uneven passivation, does not affect use, avoids major pollution, and facilitates timely drying after passivation, thus improving work efficiency.

[0021] In this embodiment, specifically: the two corresponding fixed plates 2 are fixedly connected to the same crossbar 19 on their sides that are close to each other, and the rectangular plate 4 is slidably sleeved on the outside of the corresponding crossbar 19.

[0022] In this embodiment, specifically: the L-shaped seat 8 is slidably sleeved on the outside of the corresponding vertical rod 5, and a first motor 20 is fixedly connected to the rear side of a fixing plate 2 on the rear side. The output shaft end of the first motor 20 is fixedly connected to the rear end of a first screw 3 on the right side.

[0023] In this embodiment, specifically: the front end of the first screw 3 extends to the outside of the corresponding fixing plate 2, and the outer side of the first screw 3 is fixedly sleeved with a first transmission roller, and the two first transmission rollers are connected by the same first belt 21.

[0024] In this embodiment, specifically: an L-shaped plate 22 is fixedly connected to the top of a top plate 6 on the left side, the top end of a second screw 7 extends to the top of the corresponding top plate 6, a second motor 23 is fixedly connected to the inner wall of the top of the L-shaped plate 22, and the output shaft end of the second motor 23 is fixedly connected to the top end of a second screw 7 on the left side.

[0025] In this embodiment, specifically: a second transmission roller is fixedly sleeved on the outer side of the second screw 7, and the two second transmission rollers are connected by the same second belt 24;

[0026] In this embodiment, specifically: a battery 25 is fixedly connected to the top of the base plate 1, and multiple electric heating tubes 26 are embedded in the rear side of the passivation box 9. The battery 25 is electrically connected to the electric heating tubes 26 through a conductive wire.

[0027] In operation, the present invention works as follows: The battery 25 is electrically connected to the electric heating tube 26 via a conductive wire. The electric heating tube 26 is energized to heat the passivation solution in the passivation box 9. The hot-dip galvanized sheet is placed between two U-shaped plates 10. Rotating the bolt 12 causes the corresponding circular block 11 to rotate and move downwards to fix the hot-dip galvanized sheet. Then, the second motor 23 is started in the forward direction. The second motor 23 drives one of the left-side second screws 7 to rotate. The rotation of the left-side second screw 7 drives one of the left-side second transmission rollers to rotate. The rotation of the left-side second transmission roller drives one of the right-side second transmission rollers to rotate via the second belt 24. The rotation of the right-side second transmission roller drives one of the right-side second screws 7 to rotate. The rotation of the second screw 7 causes the L-shaped seat 8 to slide downwards on the outside of the vertical rod 5. The L-shaped seat 8, through the U-shaped plates 10, moves the hot-dip galvanized sheet downwards into the passivation box 9 for passivation. After passivation is completed, the second motor 23 is started in the reverse direction to move the hot-dip galvanized sheet upwards. When needed... During the drying process, the first motor 20 is started, which drives the first screw 3 on the right to rotate. The rotation of the first screw 3 on the right drives the first transmission roller on the right to rotate. The rotation of the first transmission roller on the right drives the first transmission roller on the left to rotate via the first belt 21. The rotation of the first transmission roller on the left drives the first screw 3 on the left to rotate. The rotation of the first screw 3 causes the rectangular plate 4 to slide on the outside of the crossbar 19. The rectangular plate 4 moves the hot-dip galvanized sheet backward. Then, the hot air blower 14 is started. The hot air generated by the hot air blower 14 is sprayed out through the nozzle 18. As the hot-dip galvanized sheet moves backward, the hot air sprayed by the nozzle 18 can evenly dry the hot-dip galvanized sheet. This constitutes an environmentally friendly passivation device for hot-dip galvanized sheet. The passivation operation of the hot-dip galvanized sheet is carried out by immersion, which avoids uneven passivation, does not affect the use, avoids major pollution, and facilitates timely drying after passivation, thus improving work efficiency.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly passivation device for hot-dip galvanized sheet metal, comprising a base plate (1), characterized in that: Four fixing plates (2) are fixedly connected to the top of the base plate (1). A first screw (3) is rotatably connected between the sides of two corresponding fixing plates (2) that are close to each other. A rectangular plate (4) is threaded onto the outer side of the first screw (3). A vertical rod (5) is fixedly connected to the top of the rectangular plate (4). A top plate (6) is fixedly connected to the top of the vertical rod (5). A second screw (7) is rotatably connected between the rectangular plate (4) and the corresponding top plate (6). An L-shaped seat (8) is threaded onto the outer side of the second screw (7). A passivation box (9) is fixedly connected to the top of the base plate (1). A U-shaped plate (10) is fixedly connected to the sides of two L-shaped seats (8) that are close to each other. Two circular blocks (11) are provided on the inner side. Bolts (12) are fixedly connected to the top of the circular blocks (11). The U-shaped plate (10) is threaded on the outside of the corresponding two bolts (12). A side plate (13) is fixedly connected to the top of the bottom plate (1). A hot air blower (14) is fixedly connected to the outside of the side plate (13). A rectangular tube (15) is connected to and fixed to the air outlet of the hot air blower (14). Two L-shaped tubes (16) are connected to and fixed to the front side of the rectangular tube (15). The side plate (13) is fixedly sleeved on the outside of the two L-shaped tubes (16). A horizontal tube (17) is connected to and fixed to the end of the L-shaped tube (16). Multiple nozzles (18) are connected to and fixed to the side of the two horizontal tubes (17) that are close to each other.

2. The environmentally friendly passivation device for hot-dip galvanized sheet metal according to claim 1, characterized in that: The two corresponding fixed plates (2) are fixedly connected to the same crossbar (19) on the side that is close to each other, and the rectangular plate (4) is slidably sleeved on the outside of the corresponding crossbar (19).

3. The environmentally friendly passivation device for hot-dip galvanized sheet metal according to claim 2, characterized in that: The L-shaped seat (8) is slidably sleeved on the outside of the corresponding vertical rod (5), and a first motor (20) is fixedly connected to the rear side of a fixed plate (2) on the rear side. The output shaft end of the first motor (20) is fixedly connected to the rear end of a first screw (3) on the right side.

4. The environmentally friendly passivation device for hot-dip galvanized sheet metal according to claim 3, characterized in that: The front end of the first screw (3) extends to the outside of the corresponding fixed plate (2), and the outer side of the first screw (3) is fixedly fitted with a first transmission roller, and the two first transmission rollers are connected by the same first belt (21).

5. The environmentally friendly passivation device for hot-dip galvanized sheet metal according to claim 4, characterized in that: An L-shaped plate (22) is fixedly connected to the top of one of the top plates (6) on the left side. The top end of the second screw (7) extends above the corresponding top plate (6). A second motor (23) is fixedly connected to the inner wall of the top of the L-shaped plate (22). The output shaft end of the second motor (23) is fixedly connected to the top end of one of the second screws (7) on the left side.

6. The environmentally friendly passivation device for hot-dip galvanized sheet metal according to claim 5, characterized in that: The second screw (7) is fixedly sleeved with a second transmission roller, and the two second transmission rollers are connected by the same second belt (24).

7. The environmentally friendly passivation device for hot-dip galvanized sheet metal according to claim 6, characterized in that: A battery (25) is fixedly connected to the top of the base plate (1), and a plurality of electric heating tubes (26) are embedded in the rear side of the passivation box (9). The battery (25) is electrically connected to the electric heating tubes (26) through a conductor wire.

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