Casting surface anti-corrosion electroplating processing device

Abstract

The invention discloses a casting surface anti-corrosion electroplating machining device. The casting surface anti-corrosion electroplating machining device comprises a lifting air cylinder, a hanging ring assembly, a hanging tool assembly and a waste gas treatment mechanism. Wherein the lifting cylinder is fixedly arranged at the bottom of the travelling crane sliding rod, and the hanging ring assembly is fixedly installed at the telescopic end of the lifting cylinder; the hanging tool assembly comprises a connector, a hanging frame and an anti-shaking hook piece. The hanging frame is fixedly arranged at the bottom of the connector, the anti-shaking hook piece is fixedly arranged at the top of the connector, and the anti-shaking hook piece is used for fixing the whole hanging tool assembly on the hanging tool assembly; the waste gas treatment mechanism is arranged on the side of the electrolysis container. According to the device, the anti-shaking hook piece is matched with the hanging ring assembly, so that the whole hanging tool assembly is fixed below the hanging ring assembly, the hanging frame is not prone to shaking when moving along a traveling crane along with a traveling crane sliding rod, and the waste gas treatment mechanism can treat acid-containing waste gas generated in all electroplating procedures in time.

Description

Technical Field

[0001] The present invention relates to the technical field of electroplating processing, and particularly relates to an anti-corrosion electroplating processing device for the surface of castings. Background Art

[0002] The surface anti-corrosion performance of a casting refers to the corrosion resistance of the surface material of the casting in a specific environment. The surface anti-corrosion performance of a casting is a key factor determining the service life of the casting and an important index for evaluating the quality of the casting. At present, special surface treatment processes, such as electroplating, heat treatment, coating, etc., are used to form a protective film on the surface of the casting, thereby improving the surface anti-corrosion performance of the casting.

[0003] Electroplating is the process of plating a thin layer of other metals or alloys on the surface of a metal casting using the principle of electrolysis. It is a process of using electrolysis to attach a metal film to the surface of a metal or other material workpiece, which plays roles such as preventing metal oxidation, improving corrosion resistance, wear resistance, electrical conductivity, and aesthetics. The electroplating process mainly includes: degreasing and defatting → water washing → pickling and activation → electroplating → water washing → drying, etc. Electroplating requires the use of electroplating processing equipment. For example, a Chinese patent with publication number CN113913905A discloses an electroplating processing equipment, which includes a hanging rack for hanging workpieces to be electroplated and a cleaning device for cleaning particles on the surface of the electroplating solution; the cleaning device includes a cleaning cloth, a guide rail, and a driving mechanism; the surface of the cleaning cloth abuts against the surface of the electroplating solution; the cleaning cloth is used to adsorb particles on the surface of the electroplating solution; the cleaning cloth is slidably connected to the periphery of the guide rail along the length direction of the guide rail; material holes are formed through the surface of the cleaning cloth; the hanging rack passes through the material holes; the driving mechanism is used to drive the cleaning cloth to slide so that the material holes move to directly below the hanging rack.

[0004] In the above patent, since the hanging rack is located inside the cleaning device, the movement of the hanging rack in the left-right direction of the traveling crane is restricted, resulting in the need to remove the hanging rack from the traveling crane and transfer it to the next process after electroplating is completed, which cannot be processed continuously and affects the processing efficiency. In addition, the hanging rack is only hung under the traveling crane by a hook, and the hanging rack is prone to shaking, and the shaking is likely to cause the plated parts to fall. Moreover, acid-containing waste gas is generated during electroplating, and if not treated in time, it will be harmful to the health of operators. Summary of the Invention

[0005] In order to solve the deficiencies of the above-mentioned existing technologies, the present invention provides an anti-corrosion electroplating processing device for the surface of castings, which has high continuous production efficiency, stable hanging of the hanging rack, and timely treatment of acid-containing waste gas.

[0006] The object of the present invention can be achieved by the following technical solutions:

[0007] An anti-corrosion electroplating processing device for the surface of castings includes a sliding rod slidably arranged on a traveling crane, and a lifting cylinder is fixedly arranged at the bottom of the sliding rod. It also includes:

[0008] A hanging ring assembly, which is fixedly installed at the telescopic end of the lifting cylinder;

[0009] A hanging tool assembly, which includes a connecting head, a hanging rack and an anti-sway hook member; the hanging rack is fixedly arranged at the bottom of the connecting head, the anti-sway hook member is fixedly arranged at the top of the connecting head, and the anti-sway hook member is used to fix the whole hanging tool assembly on the hanging tool assembly;

[0010] An exhaust gas treatment mechanism, which is arranged on the side of the electrolytic container. There are multiple independent electroplating tanks in the electrolytic container, and the exhaust gas treatment mechanism is used to timely discharge and treat the acid-containing exhaust gas generated in the electroplating tank.

[0011] As a further solution of the present invention: the exhaust gas treatment mechanism includes a main pipeline and branch pipelines. One end of the branch pipeline is communicated with the electroplating tank, the other end of the branch pipeline is communicated with the main pipeline, a blower is installed at one end of the main pipeline, a suction fan is installed at the other end of the main pipeline, and a cleaning mechanism is further arranged inside the main pipeline. The cleaning mechanism is used to clean the impurities attached to the inner wall of the main pipeline.

[0012] As a further solution of the present invention: the cleaning mechanism includes:

[0013] Two first support blocks, which are symmetrically arranged at both ends inside the main pipeline;

[0014] A threaded rod, which is rotatably arranged between the two first support blocks;

[0015] A second support block, which is arranged inside the main pipeline;

[0016] A driving motor, which is fixedly installed on the side of the second support block, and the rotating shaft of the driving motor is fixedly connected to the end of the threaded rod far away from the suction fan;

[0017] A cleaning member, which is sleeved on the threaded rod, and the cleaning member can slide on the threaded rod.

[0018] As a further solution of the present invention: the cleaning member includes:

[0019] A limiting sleeve, which is fixedly arranged between the two first support blocks, and two limiting chutes are oppositely arranged on the surface of the limiting sleeve. The threaded rod is located inside the limiting sleeve;

[0020] A sleeve, the sleeve is threadedly sleeved on the threaded rod, the sleeve is located within the limit sleeve, two limit sliders are oppositely arranged on the sleeve, and the limit sliders are respectively slidably fitted within the corresponding limit chutes;

[0021] Two support plates, the two support plates are respectively fixedly arranged at the ends of the two limit sliders;

[0022] An annular sleeve, the annular sleeve is sleeved outside the limit sleeve, and the ends of the two support plates away from the limit sleeve are fixedly connected to the inner wall of the annular sleeve;

[0023] A flexible cleaning sleeve, the flexible cleaning sleeve is sleeved on the outer periphery of the annular sleeve, and the flexible cleaning sleeve fits on the inner wall surface of the main pipeline.

[0024] As a further solution of the present invention: A filter element is further arranged inside the main pipeline, and the filter element is located between the cleaning mechanism and the exhaust fan.

[0025] As a further solution of the present invention: The hanging ring assembly includes:

[0026] A rectangular frame, a base is fixedly arranged at the center inside the rectangular frame, and the top of the base is fixedly connected to the telescopic end of the lifting cylinder;

[0027] A telescopic rod, the telescopic rod is fixedly arranged at the bottom of the base;

[0028] A movable pressing plate, the movable pressing plate is fixedly arranged at the telescopic end of the telescopic rod.

[0029] As a further solution of the present invention: The anti-sway hook member includes:

[0030] A rectangular plate, a groove matching with the movable pressing plate is opened at the top of the rectangular plate, a connecting rod is fixedly arranged at the bottom of the rectangular plate, and the connecting head is fixedly connected to the connecting rod;

[0031] Movable hooks, the four movable hooks are respectively rotatably connected to the four sides of the rectangular plate, and the movable hooks can be respectively hooked on the corresponding edges of the rectangular frame.

[0032] As a further solution of the present invention: Positioning grooves matching with the movable hooks are opened at the tops of the four edges of the rectangular frame, and the movable hooks are hooked within the positioning grooves.

[0033] As a further solution of the present invention: An opening is opened at the top of the electroplating tank, and the connecting head can be hermetically covered above the opening.

[0034] The present invention has the following beneficial effects:

[0035] (1) The present invention is provided with a hanging ring assembly and an anti-vibration hook member. Through the cooperation of the anti-vibration hook member and the hanging ring assembly, the entire hanging tool assembly is fixed below the hanging ring assembly, ensuring that the hanging rack is not easily shaken when following the traveling rod of the traveling crane along the traveling crane, thereby avoiding the dropping of the plated parts on the hanging rack and the large-scale dripping of the corrosive liquid adhering to the hanging rack, and improving the safety of the device.

[0036] (2) The present invention is provided with an exhaust gas treatment mechanism. The exhaust gas treatment mechanism includes a main pipeline, a branch pipeline, a blower, and an exhaust fan. One end of the branch pipeline is connected to the electroplating tank, and the other end of the branch pipeline is connected to the main pipeline. A blower is installed at one end of the main pipeline, and an exhaust fan is installed at the other end of the main pipeline. During each electroplating process, the blower and the exhaust fan are started simultaneously. The blower sends air into the main pipeline from one end, and the exhaust fan discharges the air in the main pipeline from the other end to the external air purification treatment equipment. During this process, the acid-containing exhaust gas generated in each electroplating tank is respectively introduced into the main pipeline from the branch pipeline under the action of the pressure difference, so that the acid-containing exhaust gas can be processed in a timely manner, avoiding excessive discharge of the acid-containing exhaust gas into the air and endangering the health of the staff.

[0037] (3) A cleaning mechanism is also provided in the main pipeline of the present invention. The cleaning mechanism can regularly clean the impurity particles and liquids adhering to the inner wall surface of the main pipeline, avoiding the accumulation of impurity particles and liquids and their reflux from the branch pipeline into the electroplating tank, polluting the liquid in the electroplating tank, and also preventing the inner wall of the main pipeline from being corroded and damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present invention will be further described below with reference to the accompanying drawings.

[0039] Figure 1 is a front schematic view of the overall structure of the present invention;

[0040] Figure 2 is a top cross-sectional schematic view of the exhaust gas treatment mechanism of the present invention;

[0041] Figure 3 is Figure 2 an enlarged schematic view of the structure at A in

[0042] Figure 4 is a three-dimensional schematic view of the cleaning member of the present invention;

[0043] Figure 5 is a three-dimensional schematic view of the hanging ring assembly of the present invention;

[0044] Figure 6 is a front schematic view of the hanging tool assembly of the present invention;

[0045] Figure 7 is a cross-sectional schematic view of the connection head airtightly covering the opening structure of the present invention.

[0046] In the figure: 1. Slide bar; 2. Lifting cylinder; 3. Hanging ring assembly; 31. Rectangular frame; 311. Positioning groove; 32. Base; 33. Telescopic rod; 34. Movable pressing plate; 4. Hanger assembly; 41. Connector; 42. Hanger; 43. Anti-sway hook member; 431. Rectangular plate; 432. Groove; 433. Connecting rod; 434. Movable hook; 5. Exhaust gas treatment mechanism; 51. Main pipeline; 52. Branch pipeline; 53. Blower; 54. Exhaust fan; 55. Cleaning mechanism; 551. First support block; 552. Threaded rod; 553. Second support block; 554. Driving motor; 555. Cleaning member; 5551. Limiting sleeve; 5552. Limiting chute; 5553. Sleeve; 5554. Limiting slider; 5555. Support plate; 5556. Ring sleeve; 5557. Flexible cleaning sleeve; 6. Electrolytic capacitor; 61. Electroplating tank; 62. Opening; 7. Filter element. Detailed implementation manners

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0048] Please refer to Figure 1-7 As shown in the figure, the embodiment of the present invention provides a casting surface corrosion-resistant electroplating processing device, including a lifting cylinder 2, a hanging ring assembly 3, a hanger assembly 4, and an exhaust gas treatment mechanism 5.

[0049] Among them, as Figure 1 shown, the lifting cylinder 2 is fixedly arranged at the bottom of the traveling crane slide bar 1, and the hanging ring assembly 3 is fixedly installed at the telescopic end of the lifting cylinder 2; the hanger assembly 4 includes a connector 41, a hanger 42, and an anti-sway hook member 43; the hanger 42 is fixedly arranged at the bottom of the connector 41, and the anti-sway hook member 43 is fixedly arranged at the top of the connector 41. The anti-sway hook member 43 is used to fix the entire hanger assembly 4 on the hanger assembly 4; the exhaust gas treatment mechanism 5 is arranged on the side of the electrolytic capacitor 6. A plurality of independent electroplating tanks 61 are arranged in the electrolytic capacitor 6. An opening 62 is opened at the top of the electroplating tank 61. The connector 41 can be hermetically covered above the opening 62 to prevent the acid-containing exhaust gas in the electroplating tank 61 from leaking out through the opening 62. The exhaust gas treatment mechanism 5 is used to timely discharge and treat the acid-containing exhaust gas generated in the electroplating tank 61. The traveling crane slide bar 1 drives the hanger 42 to sequentially pass through a plurality of electroplating tanks 61 to continuously complete electroplating processes such as degreasing and oil removal → water washing → pickling and activation → electroplating → water washing → drying.

[0050] The electroplating processing device with the above structure, through the cooperation of the anti-shake hook member 43 and the hanging ring assembly 3, fixes the entire hanging tool assembly 4 below the hanging ring assembly 3, ensuring that the hanging rack 42 is not easily shaken when following the traveling crane slide bar 1 along the traveling crane, thereby avoiding the dropping of the electroplated parts on the hanging rack 42 and the large-scale dripping of the corrosive liquid adhering to the hanging rack 42, and improving the safety of the device; by setting up the waste gas treatment mechanism 5, the acid-containing waste gas generated in each electroplating process can be timely treated, avoiding excessive discharge of the acid-containing waste gas into the air and endangering the health of the staff.

[0051] Refer to Figure 2 As shown, the waste gas treatment mechanism 5 includes a main pipeline 51 and branch pipelines 52. One end of the branch pipeline 52 is communicated with the electroplating tank 61, and the other end of the branch pipeline 52 is communicated with the main pipeline 51. A blower 53 is installed at one end of the main pipeline 51, and an exhaust fan 54 is installed at the other end of the main pipeline 51. A cleaning mechanism 55 is also arranged inside the main pipeline 51. The cleaning mechanism 55 is used to clean the impurities attached to the inner wall of the main pipeline 51. When performing each electroplating process, the blower 53 and the exhaust fan 54 are started simultaneously. The blower 53 sends air into the main pipeline 51 from one end, and the exhaust fan 54 discharges the air in the main pipeline 51 to the external air purification treatment equipment (not shown in the figure) from the other end of the main pipeline 51. In this process, the acid-containing waste gas generated in each electroplating tank 61 is respectively converged into the main pipeline 51 from the branch pipelines 52 under the action of the pressure difference and is discharged by the exhaust fan 54. The cleaning mechanism 55 can also be used to regularly clean the impurity particles and liquid attached to the inner wall surface of the main pipeline 51, avoiding the impurity particles and liquid attached to the inner wall surface of the main pipeline 51 from accumulating and flowing back into the electroplating tank 61 from the branch pipelines 52 to pollute the liquid in the electroplating tank 61, and also preventing the inner wall of the main pipeline 51 from being corroded and damaged.

[0052] Combined with Figure 3 and Figure 4 As shown, the cleaning mechanism 55 includes a first support block 551, a threaded rod 552, a second support block 553, a driving motor 554 and a cleaning member 555.

[0053] Among them, two first support blocks 551 are symmetrically arranged at both ends inside the main pipeline 51. The first support blocks 551 are fixedly installed inside the main pipeline 51 through 2 - 3 connecting columns. The threaded rod 552 is rotatably arranged between the two first support blocks 551. The second support block 553 is also fixedly installed inside the main pipeline 51 through 2 - 3 connecting columns. The driving motor 554 is fixedly installed on the side of the second support block 553. The rotating shaft of the driving motor 554 is fixedly connected to the end of the threaded rod 552 far from the exhaust fan 54. The cleaning part 555 is sleeved on the threaded rod 552. When the threaded rod 552 rotates, the cleaning part 555 can slide on the threaded rod 552. Specifically, in implementation, the driving motor 554 is used to drive the threaded rod 552 to rotate. The rotation of the threaded rod 552 drives the cleaning part 555 to reciprocate along the threaded rod 552, so that the cleaning part 555 can clean the impurity particles and liquid attached to the inner wall surface of the main pipeline 51.

[0054] Refer to Figure 4 As shown, the cleaning part 555 includes a limit sleeve 5551, a sleeve 5553, a support plate 5555, an annular sleeve 5556 and a flexible cleaning sleeve 5557.

[0055] Among them, the limit sleeve 5551 is fixedly arranged between the two first support blocks 551, and two limit sliding grooves 5552 are oppositely formed on the surface of the limit sleeve 5551. The threaded rod 552 is located inside the limit sleeve 5551. The sleeve 5553 is threadedly sleeved on the threaded rod 552, and the sleeve 5553 is located inside the limit sleeve 5551. Two limit sliding blocks 5554 are oppositely arranged on the sleeve 5553. The limit sliding blocks 5554 can be slidably fitted into the corresponding limit sliding grooves 5552 respectively. Two support plates 5555 are respectively fixedly arranged at the ends of the two limit sliding blocks 5554. The annular sleeve 5556 is sleeved outside the limit sleeve 5551. The ends of the two support plates 5555 far from the limit sleeve 5551 are fixedly connected to the inner wall of the annular sleeve 5556. The flexible cleaning sleeve 5557 is sleeved outside the annular sleeve 5556, and the flexible cleaning sleeve 5557 is attached to the inner wall surface of the main pipeline 51.

[0056] Specifically, when the driving motor 554 drives the threaded rod 552 to rotate, the sleeve 5553 can move along the threaded rod 552 under the cooperation of the two limit sliding blocks 5554 and the two limit sliding grooves 5552. Under the connection of the two support plates 5555, the annular sleeve 5556 synchronously follows the sleeve 5553 to move along the threaded rod 552, so that the flexible cleaning sleeve 5557 quickly absorbs the impurity particles and liquid attached to the inner wall surface of the main pipeline 51 onto the flexible cleaning sleeve 5557.

[0057] Refer to Figure 5As shown, the hanging ring assembly 3 includes a rectangular frame 31, a telescopic rod 33, and a movable pressing plate 34. Among them, a base 32 is fixedly arranged at the center inside the rectangular frame 31. The top of the base 32 is fixedly connected to the telescopic end of the lifting cylinder 2. The telescopic rod 33 is fixedly arranged at the bottom of the base 32, and the movable pressing plate 34 is fixedly arranged at the telescopic end of the telescopic rod 33.

[0058] Refer to Figure 6 As shown, the anti-sway hook member 43 includes a rectangular plate 431, a rectangular plate 431, and a movable hook 434. Among them, a groove 432 matching the movable pressing plate 34 is formed at the top of the rectangular plate 431. A connecting rod 433 is fixedly arranged at the bottom of the rectangular plate 431. The connecting head 41 is fixedly connected to the connecting rod 433. Four movable hooks 434 are respectively rotatably connected to the four sides of the rectangular plate 431. The movable hooks 434 can be respectively hooked to the edges of the corresponding rectangular frame 31. Further, positioning grooves 311 matching the movable hooks 434 are formed at the tops of the four edges of the rectangular frame 31, and the movable hooks 434 are hooked in the positioning grooves 311.

[0059] During specific implementation, the four movable hooks 434 are respectively hooked in the corresponding positioning grooves 311, and then the telescopic rod 33 is started to drive the movable pressing plate 34 to move downward until the movable pressing plate 34 abuts and engages in the groove 432 at the top of the rectangular plate 431. Under the combined action of the four movable hooks 434 and the movable pressing plate 34, the anti-sway hook member 43 and the hanging ring assembly 3 are firmly connected together, so that the hanging tool assembly 4 is integrally fixed below the hanging ring assembly 3, ensuring that the hanging rack 42 is not easily swayed when following the traveling crane slide bar 1 to move along the traveling crane.

[0060] It can be understood that in order to prevent the acid-containing waste gas from corroding and damaging the exhaust fan 54, a filter element 7 can also be arranged inside the main pipeline 51. The filter element 7 is located between the cleaning mechanism 55 and the exhaust fan 54. Before the acid-containing waste gas enters the exhaust fan 54, the filter element 7 first performs preliminary filtration treatment on the acid-containing waste gas.

[0061] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, as well as a specific orientation structure and operation. Therefore, it cannot be understood as a limitation to the present invention.

[0062] In addition, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "setting", etc. should be understood in a broad sense. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0063] The above has described the preferred embodiments of the present invention in detail, and it should not be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A casting surface corrosion-resistant electroplating processing device, characterized in that Including: A lifting cylinder (2), which is fixedly arranged at the bottom of the traveling crane slide bar (1); A hanging ring assembly (3), which is fixedly installed at the telescopic end of the lifting cylinder (2); A hanging tool assembly (4), which includes a connecting head (41), a hanging rack (42) and an anti-sway hook member (43); the hanging rack (42) is fixedly arranged at the bottom of the connecting head (41), and the anti-sway hook member (43) is fixedly arranged at the top of the connecting head (41), and the anti-sway hook member (43) is used to fix the whole hanging tool assembly (4) on the hanging tool assembly (4); An exhaust gas treatment mechanism (5), which is arranged on the side of the electrolytic container (6), and a plurality of independent electroplating tanks (61) are arranged in the electrolytic container (6), and the exhaust gas treatment mechanism (5) is used to timely discharge and treat the acid-containing exhaust gas generated in the electroplating tank (61).

2. The surface corrosion-resistant electroplating processing device for castings according to claim 1, characterized in that: The exhaust gas treatment mechanism (5) includes a main pipeline (51) and a branch pipeline (52), one end of the branch pipeline (52) is communicated with the electroplating tank (61), the other end of the branch pipeline (52) is communicated with the main pipeline (51), a blower (53) is installed at one end of the main pipeline (51), a suction fan (54) is installed at the other end of the main pipeline (51), and a cleaning mechanism (55) is further arranged inside the main pipeline (51), and the cleaning mechanism (55) is used to clean the impurities attached to the inner wall of the main pipeline (51).

3. The surface corrosion-resistant electroplating processing device for castings according to claim 2, wherein: The cleaning mechanism (55) includes: Two first support blocks (551), which are symmetrically arranged at both ends inside the main pipeline (51); A threaded rod (552), which is rotatably arranged between the two first support blocks (551); A second support block (553), which is arranged inside the main pipeline (51); A driving motor (554), which is fixedly installed on the side of the second support block (553), and the rotating shaft of the driving motor (554) is fixedly connected to the end of the threaded rod (552) far from the suction fan (54); A cleaning member (555), which is sleeved on the threaded rod (552), and the cleaning member (555) can slide on the threaded rod (552).

4. A casting surface corrosion-resistant electroplating processing device according to claim 3, characterized in that: The cleaning member (555) includes: A limit sleeve (5551), which is fixedly arranged between the two first support blocks (551), and two limit sliding grooves (5552) are oppositely arranged on the surface of the limit sleeve (5551), and the threaded rod (552) is located inside the limit sleeve (5551); A sleeve (5553), the sleeve (5553) is threadedly sleeved on the threaded rod (552), the sleeve (5553) is located within the limit sleeve (5551), two limit sliders (5554) are oppositely arranged on the sleeve (5553), and the limit sliders (5554) are respectively slidably fitted within the corresponding limit chutes (5552); Two support plates (5555), the two support plates (5555) are respectively fixedly arranged at the ends of the two limit sliders (5554); An annular sleeve (5556), the annular sleeve (5556) is sleeved outside the limit sleeve (5551), and the ends of the two support plates (5555) away from the limit sleeve (5551) are fixedly connected to the inner wall of the annular sleeve (5556); A flexible cleaning sleeve (5557), the flexible cleaning sleeve (5557) is sleeved on the outer periphery of the annular sleeve (5556), and the flexible cleaning sleeve (5557) is attached to the inner wall surface of the main pipeline (51).

5. The surface corrosion-resistant electroplating processing device for castings according to claim 2, wherein: A filter element (7) is further arranged inside the main pipeline (51), and the filter element (7) is located between the cleaning mechanism (55) and the exhaust fan (54).

6. A casting surface corrosion-resistant electroplating processing device according to any one of claims 1-5, characterized in that: The hanging ring assembly (3) includes: A rectangular frame (31), a base (32) is fixedly arranged at the center inside the rectangular frame (31), and the top of the base (32) is fixedly connected to the telescopic end of the lifting cylinder (2); A telescopic rod (33), the telescopic rod (33) is fixedly arranged at the bottom of the base (32); A movable pressure plate (34), the movable pressure plate (34) is fixedly arranged at the telescopic end of the telescopic rod (33).

7. The surface corrosion-resistant electroplating processing device for castings according to claim 6, characterized in that The anti - sway hook member (43) includes: A rectangular plate (431), a groove (432) matching the movable pressure plate (34) is opened at the top of the rectangular plate (431), a connecting rod (433) is fixedly arranged at the bottom of the rectangular plate (431), and the connecting head (41) is fixedly connected to the connecting rod (433); Movable hooks (434), the four movable hooks (434) are respectively rotatably connected to the four sides of the rectangular plate (431), and the movable hooks (434) can be respectively hooked to the edge of the corresponding rectangular frame (31).

8. The surface corrosion-resistant electroplating processing device for castings according to claim 7, characterized in that, Positioning grooves (311) matching the movable hooks (434) are opened at the tops of the four edges of the rectangular frame (31), and the movable hooks (434) are hooked in the positioning grooves (311).

9. The surface corrosion-resistant electroplating processing device for castings according to claim 1, wherein, An opening (62) is opened at the top of the electroplating tank (61), and the connecting head (41) can be hermetically covered above the opening (62).

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