A device for the protective coating and passivation of galvanized steel sheets

Abstract

The utility model discloses a galvanized steel sheet protective coating passivation device, including passivation pool and the bearing material frame in passivation pool, the bearing material frame upper end both sides are connected with elevating gear, and passivation pool upper end is equipped with blow dry mechanism, and elevating gear includes a group of partition groove, a group of vertical mounting plate, a group of synchronous motor, two groups of chain tooth, a group of transmission chain and a group of lifting frame. The utility model has the beneficial effect that through being located bearing material frame upper end both sides connection with elevating gear, the galvanized steel sheet that needs passivation treatment is hoisted into bearing material frame, and elevating gear drives bearing material frame to immerse in the passivation liquid in passivation pool, makes the galvanized steel sheet with passivation liquid full contact, and forms a layer passivation film on the galvanized surface, plays good corrosion resistance and stability, can long -term protection galvanization and is not subjected to the erosion of external environment, and the blow dry mechanism can be to the galvanized steel sheet after passivation treatment automatic blow dry, and the subsequent processing is used with convenience.

Description

Technical Field

[0001] This utility model relates to the field of galvanized steel sheet surface treatment technology, specifically a protective coating passivation device for galvanized steel sheets. Background Technology

[0002] Protective passivation coating of galvanized steel sheets is a technique that uses chemical treatment to form a dense passivation film on the surface of the galvanized layer, thereby improving its corrosion resistance and service life. This technology not only effectively isolates the galvanized layer from direct contact with the external environment but also enhances the decorative and environmental friendliness of galvanized steel sheets.

[0003] An existing patent application (CN202420476076.0) discloses a passivation liquid spraying device for galvanized steel sheets. This device inserts the galvanized steel sheet into a slot in a support frame, and the passivation liquid is sprayed onto the surface of the galvanized steel sheet through nozzles on both sides, achieving simultaneous spraying on both sides and thus improving spraying efficiency. However, using spraying to passivate galvanized steel sheets results in insufficient contact between the galvanized steel sheet and the passivation liquid, affecting the passivation effect. Furthermore, a large amount of passivation liquid adheres to the galvanized steel sheet after spraying, requiring a long drying time. Utility Model Content

[0004] To address the above deficiencies, this utility model provides a protective coating passivation device for galvanized steel sheets, thereby solving the problem of passivation treatment on the surface of galvanized steel sheets.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A protective coating passivation device for galvanized steel sheet includes a passivation tank and a material support rack located in the passivation tank. The material support rack is connected to lifting mechanisms on both sides of its upper end, and a drying mechanism is provided at the upper end of the passivation tank.

[0007] The lifting mechanism includes a set of partitions, a set of vertical mounting plates, a set of synchronous motors, two sets of chain teeth, a set of transmission chains, and a set of lifting frames. The partitions are located on both sides of the passivation tank. The vertical mounting plates are installed in the partitions. The synchronous motors are installed at the rear end of the vertical mounting plates, with their rotating ends movably inserted into the corresponding vertical mounting plates. The two sets of chain teeth are movably installed at the front end of the vertical mounting plates, with one set of chain teeth connected to the rotating end of the corresponding synchronous motor. The transmission chains are fitted onto the corresponding set of chain teeth. The bottom of the lifting frame is fixed to the transmission chains.

[0008] Furthermore, the drying mechanism includes a set of strip plates, a stepper motor, a rotating lead screw, a sliding lead screw nut, a fixed round rod, a sliding bushing, and an n-type drying rack. The set of strip plates is installed at the front and rear ends of the passivation tank. The stepper motor is horizontally installed on the front strip plate. The rotating lead screw is installed on the rotating end of the stepper motor. The sliding lead screw nut is movably fitted on the rotating lead screw. The fixed round rod is installed on the rear strip plate. The sliding bushing is movably fitted on the fixed round rod. The bottom sides of the n-type drying rack are installed on the upper ends of the sliding lead screw nut and the sliding bushing. The drying mechanism can automatically dry the galvanized steel sheet after passivation treatment, which is convenient for subsequent processing.

[0009] Furthermore, the n-shaped drying rack is equipped with two sets of opposing axial flow fans on both sides, which can quickly dry the galvanized steel sheet.

[0010] Furthermore, a set of guide sleeves are installed in a set of partitions, and a set of lifting frames are slidably inserted into the corresponding set of guide sleeves. The lifting frame includes a top plate and a bottom plate, as well as a round rod fixed between the top plate and the bottom plate. The bottom plate has a notch corresponding to the vertical mounting plate to facilitate up and down movement. The guide sleeves are fitted onto the outside of the round rod to play a guiding role.

[0011] Furthermore, the upper sides of the material support frame are connected to the top of a set of lifting frames via a set of connecting rods, which facilitates the lifting and lowering movement of the material support frame.

[0012] Furthermore, the material support frame is equipped with several staggered reinforcing bars for reinforcement.

[0013] This utility model provides a protective coating passivation device for galvanized steel sheets, which has the following beneficial effects: A lifting mechanism is connected to both sides of the upper end of the support frame to hoist the galvanized steel sheet to be passivated into the support frame. The lifting mechanism drives the support frame to be immersed in the passivation liquid in the passivation tank, allowing the galvanized steel sheet to fully contact the passivation liquid and form a passivation film on the galvanized surface. This provides good corrosion resistance and stability, and can protect the galvanized steel sheet from external environmental erosion for a long time. The drying mechanism can automatically dry the galvanized steel sheet after passivation, facilitating subsequent processing and use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a protective coating passivation device for galvanized steel plates according to the present invention.

[0015] Figure 2 This is a front view of the vertical mounting plate of this utility model.

[0016] Figure 3 This is a rear view of the vertical mounting plate of this utility model.

[0017] Figure 4This is a schematic diagram of the material support rack described in this utility model.

[0018] Figure 5 This is a top view of the passivation pool described in this utility model.

[0019] Figure 6 This is a side view of the n-type blow dryer described in this utility model.

[0020] In the diagram: 1. Passivation tank; 2. Material support rack; 3. Divider; 4. Vertical mounting plate; 5. Synchronous motor; 6. Chain teeth; 7. Transmission chain; 8. Lifting frame; 9. Strip plate; 10. Stepper motor; 11. Rotating lead screw; 12. Sliding lead nut; 13. Fixed round rod; 14. Sliding bushing; 15. N-type drying rack; 16. Axial flow fan; 17. Guide sleeve; 18. Connecting rod; 19. Reinforcing rod. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] Please see Figures 1 to 6 As shown in the embodiment of this application, a protective coating passivation device for galvanized steel sheet is provided, including a passivation tank 1 and a support rack 2 located in the passivation tank 1. The support rack 2 is connected to lifting mechanisms on both sides of its upper end, and a drying mechanism is provided at the upper end of the passivation tank 1. The lifting mechanism includes a set of partition grooves 3, a set of vertical mounting plates 4, a set of synchronous motors 5, two sets of chain teeth 6, a set of transmission chains 7, and a set of lifting frames 8. The set of partition grooves 3 is arranged on both sides of the passivation tank 1. The set of vertical mounting plates 4 is installed in the set of partition grooves 3. The set of synchronous motors 5 is installed at the rear end of the set of vertical mounting plates 4, and the rotating ends are respectively movably inserted into the corresponding vertical mounting plates 4 through fastening bearings. The two sets of chain teeth 6 are movably installed at the front end of the set of vertical mounting plates 4, and one set of chain teeth 6 is respectively connected to the rotating end of the corresponding synchronous motor 5. The set of transmission chains 7 is fitted on the corresponding set of chain teeth 6. The bottom of the set of lifting frames 8 is fixed on the set of transmission chains 7.

[0023] In this embodiment, firstly, the galvanized steel sheet requiring passivation is hoisted into the support frame 2, with the steel sheet's height exceeding that of the support frame 2. Figure 4As shown, this facilitates hoisting. Then, a set of synchronous motors 5 starts working, driving a set of transmission chains 7 to rotate, and through a set of lifting frames 8, driving the material rack 2 to descend into the passivation tank 1, so that the galvanized steel sheet is immersed in the passivation solution in the passivation tank 1. The galvanized steel sheet is in full contact with the passivation solution, and a passivation film is formed on the galvanized surface, which provides good corrosion resistance and stability, and can protect the galvanized steel sheet from the erosion of the external environment for a long time.

[0024] In some embodiments, the drying mechanism includes a set of strip plates 9, a stepper motor 10, a rotating lead screw 11, a sliding lead screw nut 12, a fixed round rod 13, a sliding bushing 14, and an n-shaped drying rack 15. The set of strip plates 9 are installed at the front and rear ends of the top of the passivation tank 1. The stepper motor 10 is horizontally installed on the front strip plate 9. The rotating lead screw 11 is installed on the rotating end of the stepper motor 10. The sliding lead screw nut 12 is movably fitted on the rotating lead screw 11. The fixed round rod 13 is installed on the rear strip plate 9. The sliding bushing 14 is movably fitted on the fixed round rod 13. The bottom sides of the n-shaped drying rack 15 are installed on the upper ends of the sliding lead screw nut 12 and the sliding bushing 14.

[0025] and in conjunction with the appendix Figure 5 and attached Figure 6 As shown, after the galvanized steel sheet is passivated, the lifting mechanism lifts the galvanized steel sheet to the top, so that the bottom of the galvanized steel sheet is removed from the passivation liquid. Then, the stepper motor 10 starts to work, and drives the sliding screw nut 12 to move to the right by rotating the lead screw 11, so that the n-type drying rack 15 passes through the galvanized steel sheet and automatically dries the passivated galvanized steel sheet for subsequent processing. The initial position of the n-type drying rack 15 is located on the left side of the passivation pool 1, which does not affect the normal operation of the lifting mechanism.

[0026] In some embodiments, the n-type drying rack 15 is equipped with two sets of opposing axial flow fans 16 on both sides, which can quickly dry the galvanized steel sheet.

[0027] In some embodiments, a set of guide sleeves 17 are respectively installed in a set of partitions 3, and a set of lifting frames 8 are respectively slidably inserted into the corresponding set of guide sleeves 17. The lifting frame 8 includes a top plate and a bottom plate, and a round rod fixed between the top plate and the bottom plate, such as Figure 2 As shown, the base plate has a notch corresponding to the vertical mounting plate 4 to facilitate up and down movement. The guide sleeve 17 is fitted onto the outside of the round rod to serve as a guide.

[0028] In some embodiments, the upper sides of the material carrier 2 are connected to the top of a set of lifting frames 8 via a set of connecting rods 18, which facilitates the lifting and lowering of the material carrier 2.

[0029] In some embodiments, the material support frame 2 is provided with a plurality of staggered reinforcing bars 19 for reinforcement.

[0030] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A protective coating passivation device for galvanized steel sheets, comprising a passivation tank (1) and a support rack (2) located within the passivation tank (1), characterized in that, The upper end of the material support rack (2) is connected to the lifting mechanism on both sides, and the upper end of the passivation tank (1) is provided with a drying mechanism; The lifting mechanism includes a set of partitions (3), a set of vertical mounting plates (4), a set of synchronous motors (5), two sets of chain teeth (6), a set of transmission chains (7), and a set of lifting frames (8). A set of partitions (3) is set on both sides inside the passivation pool (1). A set of vertical mounting plates (4) is installed inside a set of partitions (3). A set of synchronous motors (5) is installed at the rear end of a set of vertical mounting plates (4), and the rotating ends are respectively movably inserted into the corresponding vertical mounting plates (4). Two sets of chain teeth (6) are movably installed at the front end of a set of vertical mounting plates (4), and one set of chain teeth (6) is respectively connected to the rotating end of the corresponding synchronous motor (5). A set of transmission chains (7) is fitted on the corresponding set of chain teeth (6). The bottom of a set of lifting frames (8) is fixed on a set of transmission chains (7).

2. The protective coating passivation device for galvanized steel sheet according to claim 1, characterized in that, The drying mechanism includes a set of strip plates (9), a stepper motor (10), a rotating screw (11), a sliding screw nut (12), a fixed round rod (13), a sliding bushing (14), and an n-type drying rack (15). The set of strip plates (9) is installed at the front and rear ends of the top of the passivation tank (1). The stepper motor (10) is horizontally installed on the front strip plate (9). The rotating screw (11) is installed on the rotating end of the stepper motor (10). The sliding screw nut (12) is movably fitted on the rotating screw (11). The fixed round rod (13) is installed on the rear strip plate (9). The sliding bushing (14) is movably fitted on the fixed round rod (13). The bottom sides of the n-type drying rack (15) are installed on the upper ends of the sliding screw nut (12) and the sliding bushing (14).

3. The protective coating passivation device for galvanized steel sheet according to claim 2, characterized in that, The n-type drying rack (15) is equipped with two sets of opposing axial flow fans (16) on both sides.

4. The protective coating passivation device for galvanized steel sheet according to claim 1, characterized in that, A set of guide sleeves (17) are installed in a set of partitions (3), and a set of lifting frames (8) are slidably inserted into the corresponding set of guide sleeves (17).

5. The protective coating passivation device for galvanized steel sheet according to claim 1, characterized in that, The upper sides of the material support frame (2) are connected to the top of a set of lifting frames (8) via a set of connecting rods (18).

6. The protective coating passivation device for galvanized steel sheet according to claim 1, characterized in that, The material support frame (2) is provided with several staggered reinforcing bars (19).

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