Passivation tank for passivating surface of metal product

Abstract

The utility model relates to the technical field of metal product passivation treatment, in particular to a passivation tank for metal product surface passivation treatment, which comprises a passivation box and a passivation mechanism, a cover plate is movably arranged at the top end of the passivation box and can be closed close to the passivation box or opened away from the passivation box in the height direction of the passivation box, and a drain valve is arranged at the bottom end of the side wall of the passivation box. And the passivation mechanism is arranged on the cover plate. Through the passivation mechanism, the metal products can be conveniently driven to rotate to be in full contact with passivation liquid, multiple groups of metal products can be passivated at the same time, and the passivation efficiency is improved; and through the filtering mechanism, impurities falling on the surface of the metal product during passivation can be conveniently filtered, the impurities can be conveniently separated from the passivation solution, the passivation solution can be filtered and can be conveniently reused, and meanwhile, the pollution of the sewer line caused by the internal impurities when the passivation solution is discharged is avoided.

Description

Technical Field

[0001] This utility model relates to the field of passivation treatment technology for metal products, specifically a passivation tank for surface passivation treatment of metal products. Background Technology

[0002] Surface passivation treatment of metal products refers to the phenomenon where the corrosion rate of metal decreases significantly after treatment with an oxidizing medium compared to its original state. Most existing metal products undergo passivation treatment to extend their service life. Currently, passivation tanks are used for this process.

[0003] Chinese Patent CN 216639643U discloses a passivation tank for surface passivation treatment of metal products, belonging to the field of passivation tanks for passivation treatment. It solves the problem that existing passivation tanks do not provide comprehensive passivation of metal products, thus affecting product quality. It includes a tank body and a cover, which is movably fastened to the top of the tank body. Four pull rods are evenly fixed to the bottom of the cover inside the tank body. The bottoms of the four pull rods are connected to a cage, and two symmetrically arranged filter screens are hinged inside the cage via hinged seats. This utility model's passivation tank for surface passivation treatment of metal products enables more comprehensive passivation of metal product surfaces, effectively improving product quality.

[0004] However, the above-mentioned publicly available solutions have the following shortcomings: the winch driving the filter screen plate to swing can only turn over a small number of metal products for full passivation, which limits the processing quantity, reduces the passivation efficiency, and makes it impossible to fully passivate a large number of metal products. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a passivation groove for passivation treatment of metal products.

[0006] The technical solution of this utility model is as follows: A passivation tank for surface passivation treatment of metal products includes a passivation box with a cover plate movably disposed at its top. The cover plate can be closed close to or opened away from the passivation box along the height direction of the passivation box. A drain valve is disposed at the bottom of the side wall of the passivation box. A passivation mechanism is disposed on the cover plate. The passivation mechanism includes two sets of connecting plates, which are symmetrically installed at the bottom of the cover plate. A passivation basket is provided with a door. Both ends of the passivation basket are provided with rotating shafts, and the two sets of rotating shafts are rotatably connected to the corresponding connecting plates. A drive unit is disposed on the cover plate, and one set of rotating shafts is driven to rotate by the drive unit.

[0007] Preferably, two sets of lifting mechanisms are symmetrically arranged on the side of the passivation box, and the top of the lifting mechanism is connected to the cover plate.

[0008] Preferably, the drive unit includes a drive mechanism disposed on the cover plate, the drive mechanism being a motor; and a transmission component, one end of which is connected to the output end of the drive mechanism, the other end of which is connected to a rotating shaft, and the cover plate having an opening adapted to the transmission component.

[0009] Preferably, the passivation basket is provided with multiple sets of partition nets inside, which divide the internal space of the passivation basket into multiple placement spaces of different sizes.

[0010] Preferably, a filter mechanism is provided between the bottom ends of the two sets of connecting plates. The filter mechanism includes a slide, which is U-shaped. The slide is slidably connected to the inner wall of the passivation box. A filter screen is detachably provided on the slide, and a handle is provided on the filter screen.

[0011] Preferably, an abutment block is provided at the bottom edge of the filter screen, and a groove is provided on the abutment block. The abutment block is slidably connected to the inner side wall of the slide block. An installation groove is provided on the inner side wall of the slide block. A spring is provided inside the installation groove. A protrusion is installed on the other end of the spring. The protrusion is slidably connected to the installation groove. The other end of the protrusion is adapted to the groove on the abutment block.

[0012] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects: the passivation mechanism facilitates the rotation of metal products and full contact with the passivation liquid, and multiple metal products can be passivated at the same time, improving the passivation efficiency; the filtration mechanism facilitates the filtration of impurities that fall off the surface of the metal products during passivation, facilitating the separation of impurities from the passivation liquid, allowing the passivation liquid to be filtered and reused, while avoiding the pollution of the sewer pipes caused by internal impurities when the passivation liquid is discharged. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram showing the connection between the passivation mechanism and the passivation box of this utility model;

[0015] Figure 3 This is a schematic diagram of the filter mechanism structure of this utility model;

[0016] Figure 4 This is a schematic diagram showing the connection between the passivation mechanism and the filtration mechanism of this utility model.

[0017] Reference numerals: 1. Passivation box; 101. Drain valve; 2. Lifting mechanism; 201. Cover plate; 202. Connecting plate; 3. Slide; 301. Mounting groove; 302. Spring; 303. Protrusion; 304. Filter screen; 305. Handle; 306. Abutment block; 4. Drive mechanism; 401. Transmission assembly; 402. Rotating shaft; 5. Passivation basket; 501. Door body; 502. Separator net. Detailed Implementation

[0018] Example 1

[0019] like Figure 1 , Figure 2 and Figure 4 As shown, the present invention proposes a passivation tank for surface passivation treatment of metal products, including a passivation box 1 and a passivation mechanism; a cover plate 201 is movably provided at the top of the passivation box 1, and the cover plate 201 can be closed close to the passivation box 1 or opened away from the passivation box 1 along the height direction of the passivation box 1; a drain valve 101 is provided at the bottom of the side wall of the passivation box 1; the passivation mechanism is provided on the cover plate 201.

[0020] The passivation mechanism includes a connecting plate 202, a passivation basket 5, and a drive unit; two sets of connecting plates 202 are provided, and the two sets of connecting plates 202 are symmetrically installed at the bottom of the cover plate 201; a door 501 is provided on the passivation basket 5, and a rotating shaft 402 is provided at both ends of the passivation basket 5, and the two sets of rotating shafts 402 are rotatably connected to the corresponding connecting plates 202; the drive unit is provided on the cover plate 201, and one set of rotating shafts 402 is driven to rotate by the drive unit.

[0021] Furthermore, two sets of lifting mechanisms 2 are symmetrically arranged on the side of the passivation box 1. The lifting mechanism 2 is an electric telescopic rod, and the top of the lifting mechanism 2 is connected to the cover plate 201. The cover plate 201 can be raised or lowered by activating the lifting mechanism 2.

[0022] Furthermore, the drive unit includes a drive mechanism 4 and a transmission assembly 401; the drive mechanism 4 is mounted on the cover plate 201 and is a motor; one end of the transmission assembly 401 is connected to the output end of the drive mechanism 4 and the other end of the transmission assembly 401 is connected to the rotating shaft 402; the cover plate 201 has a port adapted to the transmission assembly 401 and the transmission assembly 401 is a chain drive assembly.

[0023] Furthermore, the passivation basket 5 is equipped with multiple sets of partition nets 502 inside. These partition nets 502 divide the internal space of the passivation basket 5 into multiple placement spaces of different sizes, which facilitates the classification and placement of metal products that need to be passivated, avoids disorder, facilitates full passivation, and further improves passivation efficiency.

[0024] In this embodiment, multiple sets of metal products are placed in the passivation basket 5 and the door 501 is closed. Then, the lifting mechanism 2 is activated to move the cover plate 201 downward, which moves the passivation basket 5 into the passivation box 1 until the cover plate 201 abuts against the top of the passivation box 1. The drive mechanism 4 is activated to drive the drive transmission component 401, which in turn drives the rotating shaft 402 to rotate. This allows the passivation basket 5 to rotate, which allows the passivation liquid to fully contact the metal products for passivation, improving the passivation efficiency. After passivation is completed, the passivation liquid is discharged through the drain valve 101. As the lifting mechanism 2 moves the passivation basket 5 upward along the passivation box 1 until the passivation basket 5 moves to the outside of the passivation box 1, it is convenient to open the door 501 and take out the metal products inside the passivation basket 5.

[0025] Example 2

[0026] like Figures 2 to 4 As shown, the passivation tank for surface passivation treatment of metal products proposed in this utility model, compared with the first embodiment, has a filter mechanism between the bottom ends of the two sets of connecting plates 202. The filter mechanism includes a slide 3. The slide 3 is U-shaped and is slidably connected to the inner wall of the passivation box 1. The slide 3 is installed at the bottom ends of the two sets of connecting plates 202. A filter screen 304 is detachably installed on the slide 3. A handle 305 is provided on the filter screen 304 for easy removal of the filter screen 304.

[0027] Furthermore, an abutment block 306 is provided at the bottom edge of the filter screen 304. The abutment block 306 has a groove. The abutment block 306 is slidably connected to the inner wall of the slide block 3. The filter screen 304 abuts against the slide block 3. An installation groove 301 is provided on the inner wall of the slide block 3. A spring 302 is provided inside the installation groove 301. A protrusion 303 is installed at the other end of the spring 302. The protrusion 303 is slidably connected to the installation groove 301. The other end of the protrusion 303 is adapted to the groove on the abutment block 306.

[0028] In this embodiment, when the connecting plate 202 moves down along the passivation box 1, it drives the slide 3 to slide down along the inner wall of the passivation box 1. When the passivation basket 5 rotates to passivate the metal product, the impurities on the surface of the metal product separate and fall off, and are intercepted on the filter screen 304. The passivation basket 5 is locked and moves to the outside of the top of the passivation box 1 to pick up the material. The connecting plate 202 can drive the slide 3 to slide up along the inner wall of the passivation box 1, which makes it easier to slide the filter screen 304 and the filtered impurities upward. The handle 305 is held to lift the filter screen 304 upward, so that the abutment block 306 squeezes the protrusion 303. The protrusion 303 slides along the mounting groove 301, which compresses the spring 302, which makes it easier for the abutment block 306 to separate from the protrusion 303. The filter screen 304 can then be separated from the slide 3, making it easy to remove the filter screen 304 to clean the impurities. This allows the passivation liquid to be filtered, making it easy to use the passivation liquid multiple times, while avoiding the pollution of the sewer pipe caused by internal impurities when the passivation liquid is discharged.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A passivation tank for passivation treatment of metal product surface, characterized in that: include A passivation box (1) has a cover plate (201) movably disposed on the top thereof, the cover plate (201) being able to move closer to the passivation box (1) to close or farther away from the passivation box (1) along the height direction of the passivation box (1), and a drain valve (101) being disposed at the bottom end of the side wall of the passivation box (1); and a passivation mechanism, which is arranged on the cover plate (201), the passivation mechanism comprising The connecting plates (202) are provided in two groups, and the two groups of connecting plates (202) are symmetrically mounted on the bottom end of the cover plate (201); A passivation basket (5) is provided with a door body (501), and both ends of the passivation basket (5) are provided with rotating shafts (402), and two sets of rotating shafts (402) are respectively rotatably connected to corresponding connecting plates (202); and a driving unit, which is arranged on the cover plate (201), wherein a set of rotating shafts (402) are driven to rotate by the driving unit.

2. A passivation tank for surface passivation treatment of metal products according to claim 1, characterized in that: Two sets of lifting mechanisms (2) are symmetrically arranged at the side ends of the passivation box (1), and the top ends of the lifting mechanisms (2) are connected to the cover plate (201).

3. A passivation tank for surface passivation treatment of metal products according to claim 1, characterized in that: The drive unit includes A driving mechanism (4) is arranged on the cover plate (201), and the driving mechanism (4) is configured as a motor; and a transmission assembly (401), one end of which is transmission-connected to the output end of the driving mechanism (4), and the other end of which is transmission-connected to the rotating shaft (402). The cover plate (201) is provided with a through opening adapted to the transmission assembly (401).

4. A passivation tank for surface passivation treatment of metal products according to claim 1, characterized in that: A plurality of groups of partition nets (502) are arranged inside the passivation basket (5), and the plurality of groups of partition nets (502) divide the internal space of the passivation basket (5) into a plurality of groups of placement spaces of different sizes.

5. A passivation tank for surface passivation treatment of metal products according to claim 1, characterized in that: A filtering mechanism is provided between the bottom ends of the two sets of connecting plates (202), and the filtering mechanism includes The slide seat (3) is configured in a square shape, the slide seat (3) is slidably connected to the inner wall of the passivation box (1), a filter screen (304) is detachably provided on the slide seat (3), and a handle (305) is provided on the filter screen (304).

6. A passivation tank for surface passivation treatment of metal products according to claim 5, characterized in that: A contact block (306) is provided at the bottom edge of the filter screen (304), a groove is provided on the contact block (306), the contact block (306) is slidably connected to the inner wall of the slide seat (3), a mounting groove (301) is provided on the inner wall of the slide seat (3), a spring (302) is provided inside the mounting groove (301), a protrusion (303) is installed at the other end of the spring (302), the protrusion (303) is slidably connected to the mounting groove (301), and the other end of the protrusion (303) is adapted to the groove on the contact block (306).

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