Rust removal device for cold-pressed section steel production

Abstract

The invention discloses a rust removal device for cold-pressed section steel production, which comprises a rust removal device bottom frame and a sliding hole, the sliding hole is formed in one side of the rust removal device bottom frame, I-shaped steel is placed on the rust removal device bottom frame, a fixing assembly is arranged in the rust removal device bottom frame, and a rust removal assembly is arranged in the middle of the bottom in the rust removal device bottom frame. A power assembly is arranged in one side of the rust removal device bottom frame, a shifting assembly is arranged on one side of the rust removal device bottom frame, and the rust removal device is applied to the technical field of cold-pressed section steel machining. And the power assembly is only connected with one of the fixing assembly, the shifting assembly and the rust removal assembly at a time, the situation that two or more functions are synchronously in the operation stage is avoided, and the effect of improving the rust removal efficiency can be achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of cold-pressed steel processing, and in particular relates to a rust removal device for cold-pressed steel production. Background Art

[0002] Cold-formed steel is manufactured at room temperature through processes such as cold bending and rolling. It boasts high production precision, good surface quality, efficient material utilization, and energy conservation. It can be made from a variety of metal materials and can be processed into complex cross-sectional shapes. It is widely used in fields such as construction, automobile manufacturing, and electrical equipment, such as building purlins, automobile body frames, and distribution cabinet frames. It is an engineering material with multiple advantages. This technical solution is mainly used for rust removal of I-shaped steel, which is a type of cold-pressed steel. Among the existing rust removal equipment, large-scale rust removal equipment has a complex structure and contains numerous mechanical parts, electrical systems and control systems. Therefore, the production and use costs are high and it is not suitable for small factories or individuals. Small-scale rust removal equipment has a relatively simple function and requires manual fixation of the I-shaped steel. In addition, when facing longer I-shaped steel, the I-shaped steel needs to be manually shifted, and the processing rate is low. For example, a small manual sandblasting gun has a small sandblasting volume and spraying range, and the processing is slow. Summary of the Invention

[0003] The purpose of the present invention is to provide a rust removal device for cold-pressed steel production, which has the advantages of fixing, shifting (conveniently grinding to a new position) and grinding the I-shaped steel.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions: a rust removal device for cold-pressed steel production, comprising a rust removal device base frame and a sliding hole, the sliding hole being opened on one side of the rust removal device base frame, the rust removal device base frame being provided with an I-shaped steel, a fixing component being provided inside the rust removal device base frame, a rust removal component being provided in the middle of the bottom of the rust removal device base frame, a power component being provided inside one side of the rust removal device base frame, and a shifting component being provided on one side of the rust removal device base frame.

[0005] Using the above technical solution, the rust removal device chassis is used to place the I-shaped steel, the power component provides power for rust removal of the I-shaped steel, the fixing component is used to fix the I-shaped steel, and the shifting component is used to move the I-shaped steel that has not been rusted to the rust removal area. It is suitable for I-shaped steel of various lengths. The short rust removal device chassis can save space, and the rust removal component is used to remove rust from the I-shaped steel.

[0006] The present invention is further configured as follows: the power assembly includes an electric push rod and a motor, the electric push rod is bolted to the inside of one side of the rust removal device chassis, the motor is bolted to the piston end of the electric push rod, the motor output end is fixedly connected to a connecting rod, a first bevel gear is welded to the surface of the connecting rod, and a first circular gear is welded to one side of the first bevel gear.

[0007] With the above technical solution, the electric push rod is used to drive the motor to move forward and backward, and the operation of the motor can drive the connecting rod and the first circular gear and the first bevel gear on the surface to rotate.

[0008] The present invention is further configured as follows: the fixed assembly includes a rotating rod and a first limit plate, the rotating rod is rotatably connected to the inside of the rust removal device chassis, two groups of the first limit plates are welded to one end of the rotating rod, and the two groups of the first limit plates are rotatably connected to the rust removal device chassis, and a second circular gear is welded to the middle of the rotating rod surface.

[0009] By adopting the above technical solution, the first circular gear can mesh with the second circular gear and drive the rotating rod to rotate.

[0010] The present invention is further configured as follows: a thread is provided at one end of the rotating rod, a moving plate is threadedly connected to the threaded surface, and the moving plate is sleeved on the surface of the rotating rod, and pressure plates are welded at both ends of one side of the moving plate, and the pressure plates are slidably connected to the inside of the rust removal device chassis.

[0011] With the above technical solution, the rotation of the rotating rod will drive the shifting plate to move on the threaded surface, thereby driving the pressing plate to position the I-shaped steel.

[0012] The present invention is further configured as follows: the shift assembly includes a limit frame, the limit frame is welded to one side of the inner wall of the base frame of the rust removal device, the surface of the limit frame is slidably connected to a first tooth plate, and the first tooth plate can be meshed with the first circular gear, a rotating column is welded inside the first tooth plate, the surface of the rotating column is rotatably connected to a push plate, the surface of the rotating column is sleeved with a torsion spring, and both ends of the torsion spring are connected between the push plate and the first tooth plate through a spring fixing member.

[0013] By adopting the above technical solution, the first circular gear can drive the first tooth plate to move. When moving outward, due to the obstruction of the I-shaped steel, the push plate will rotate using the rotating column, and the push plate will maintain a certain angle with the I-shaped steel and slide on the surface of the I-shaped steel. When the first tooth plate drives the push plate to break away from contact with the I-shaped steel, the torsion spring will drive the push plate to reset. When the first tooth plate is moved to the other side, the first tooth plate will drive the push plate to move and push the I-shaped steel, causing the I-shaped steel to move. Since one side of the first tooth plate will block the push plate, the push plate will not rotate.

[0014] The present invention is further configured as follows: the rust removal component includes a sliding shell, the sliding shell is welded to the bottom of the rust removal device chassis, two groups of brackets are slidably connected in the sliding shell, and a third circular gear is rotatably connected inside the bracket.

[0015] By adopting the above technical solution, the bracket can slide inside the sliding housing, and the third circular gear can drive the two sets of second tooth plates to move in opposite directions or reverse directions.

[0016] The present invention is further configured as follows: two groups of second tooth plates are slidably connected inside the bracket, and the two groups of second tooth plates are respectively engaged with both sides of the third circular gear, wherein one side of the two groups of second tooth plates is bolted to a second spring push rod, and the surface of the second spring push rod is fixedly connected to a second limit plate, a first limit shell is welded to one side of the inner wall of the rust removal device chassis, and the second limit plate is slidably connected to the inside of the first limit shell, and the second spring push rod is slidably connected to the inside of the sliding hole.

[0017] With the above technical solution, the second spring push rod can push the moved second tooth plate to move and reset. When the second tooth plate is driven to move by the screw rod, it will drive the second limit plate to slide inside the sliding hole.

[0018] The present invention is further configured as follows: a connecting plate is welded at one end of each of the two groups of the second tooth plates, a grinding shell is bolted to the upper end of the connecting plate, and the grinding shell is slidingly connected to the I-shaped steel, a second limiting shell is slidingly connected to the surface of the two groups of the connecting plates, and the second limiting shell is welded to the inside of the rust removal device chassis, and a first spring push rod is fixedly connected to the inside of one side of the rust removal device chassis.

[0019] By adopting the above technical solution, the second limiting shell is used to limit the movement of the connecting plate, and the grinding shell is used to grind and remove rust from the I-shaped steel following the movement of the connecting plate.

[0020] The present invention is further configured as follows: the piston end of the first spring push rod is bolted to a top plate, a mounting plate is welded to one side of the top plate, a movable rod is rotatably connected inside the mounting plate, both ends of the movable rod are fixedly connected to a third bevel gear, and the upper end third bevel gear can be meshed with the first bevel gear, wherein the two groups of the second tooth plates are threadedly connected to a screw rod.

[0021] By adopting the above technical solution, the first bevel gear can drive the two sets of third bevel gears to rotate inside the mounting plate using the movable rod.

[0022] The present invention is further configured as follows: one end of the two groups of screw rods are fixedly connected to the second bevel gear, and the second bevel gear is meshed with the third bevel gear at the lower end; one end of the screw rod is rotatably connected to a movable block, the surface of the movable block is slidably connected to a third limit shell, and the third limit shell and the screw rod are slidably connected, and the third limit shell is welded to one side of the inner wall of the base frame of the rust removal device.

[0023] With the above technical solution, the screw rod can rotate inside the movable block, and the movement of the screw rod will drive the movable block to move inside the third limiting shell. The third limiting shell is used to limit the movable block to prevent it from rotating with the screw rod.

[0024] In summary, the present invention has the following beneficial effects: When in use, place the I-shaped steel on the surface of the chassis of the rust removal device, and then use the power component to connect the power component to the fixed component. After connection, the power component will drive the fixed component to clamp and fix the I-shaped steel to prevent displacement during rust removal. If the I-shaped steel to be derusted is long, the power component can be connected to the shift component. When the I-shaped steel in the rust removal area is polished, the shift component can push the unpolished position to the rust removal and polishing area. Finally, when the power component is connected to the rust removal component, the rust removal component will quickly polish and derust the I-shaped steel in two sections, and the power component is only connected to one of the fixed component, shift component or rust removal component at a time, and there will be no situation where two or more functions are in operation simultaneously, thereby achieving the effect of improving rust removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic three-dimensional diagram of the overall structure of the present invention; Figure 2 is a schematic three-dimensional diagram of the rotating column structure of the present invention; Figure 3 This is a schematic three-dimensional diagram of the electric push rod structure of the present invention; Figure 4 is a schematic three-dimensional diagram of the first tooth plate structure of the present invention; Figure 5 is a schematic three-dimensional diagram of the first spring push rod structure of the present invention; Figure 6 is a schematic three-dimensional diagram of the polished shell structure of the present invention; Figure 7 is a schematic three-dimensional diagram of the second tooth plate structure of the present invention; Figure 8 It is a schematic three-dimensional diagram of the third limiting shell structure of the present invention.

[0026] Reference numerals: 1. Rust removal device chassis; 2. I-shaped steel; 3. Power assembly; 301. Electric push rod; 302. Motor; 303. Connecting rod; 304. First bevel gear; 305. First circular gear; 4. Fixing assembly; 401. Thread; 402. Second circular gear; 403. Rotating rod; 404. First limiting plate; 405. Shifting plate; 406. Pressing plate; 5. Shifting assembly; 501. Limiting frame; 502. First toothed plate; 503. Rotating column; 504. Pushing plate; 505. Torsion spring; 6. Rust removal assembly; 601. First spring push rod; 602. Push plate; 603. Second bevel gear; 604. Mounting plate; 605. Movable rod; 606. Third bevel gear; 607. Second limiting housing; 608. Connecting plate; 609. Polishing housing; 610. Sliding housing; 611. First limiting housing; 612. Bracket; 613. Second spring push rod; 614. Second limiting plate; 615. Second tooth plate; 616. Third circular gear; 617. Screw; 618. Third limiting housing; 619. Movable block; 7. Sliding hole. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Example 1: refer to Figure 1-8 A rust removal device for cold-pressed steel production includes a rust removal device base frame 1 and a sliding hole 7. The sliding hole 7 is opened on one side of the rust removal device base frame 1. The rust removal device base frame 1 is placed with an I-shaped steel 2. A fixing component 4 is arranged inside the rust removal device base frame 1. A rust removal component 6 is arranged in the middle of the bottom of the rust removal device base frame 1. A power component 3 is arranged inside one side of the rust removal device base frame 1. A shift component 5 is arranged on one side of the rust removal device base frame 1.

[0029] Brief description of the usage process: When in use, place the I-shaped steel 2 on the surface of the rust removal device chassis 1, and then use the power component 3 to connect the power component 3 with the fixed component 4. After connection, the power component 3 will drive the fixed component 4 to clamp and fix the I-shaped steel 2 to prevent displacement during rust removal. If the I-shaped steel 2 to be rusted is long, the power component 3 can be connected to the shift component 5. When the I-shaped steel 2 in the rust removal area is polished, the shift component 5 can push the unpolished position to the rust removal and polishing area. Finally, when the power component 3 is connected to the rust removal component 6, the rust removal component 6 will quickly polish and derust the I-shaped steel 2 in two sections, and the power component 3 is only connected to one of the fixed component 4, shift component 5 or rust removal component 6 at a time, and there will be no situation where two or more functions are in operation simultaneously, thereby achieving the effect of improving rust removal efficiency.

[0030] Example 2: Based on Example 1, Figure 1 、 Figure 3The power assembly 3 includes an electric push rod 301 and a motor 302. The electric push rod 301 is bolted to the inside of one side of the rust removal device chassis 1. The motor 302 is bolted to the piston end of the electric push rod 301. The output end of the motor 302 is fixedly connected to a connecting rod 303. A first bevel gear 304 is welded on the surface of the connecting rod 303, and a first circular gear 305 is welded on one side of the first bevel gear 304.

[0031] Brief description of the usage process: The electric push rod 301 can drive the motor 302 to move forward and backward. When the motor 302 is running, it will drive the connecting rod 303 and the first circular gear 305 and the first bevel gear 304 on the surface to rotate, thereby providing power for the operation of the device.

[0032] Example 3: Based on Example 2, Figure 1-3 The fixing assembly 4 includes a rotating rod 403 and a first limiting plate 404. The rotating rod 403 is rotatably connected to the inside of the rust removal device chassis 1. The two sets of first limiting plates 404 are welded to one end of the rotating rod 403, and the two sets of first limiting plates 404 are rotatably connected to the rust removal device chassis 1. A second circular gear 402 is welded to the middle part of the surface of the rotating rod 403; a thread 401 is provided at one end of the rotating rod 403, and a moving plate 405 is threadedly connected to the surface of the thread 401, and the moving plate 405 is sleeved on the surface of the rotating rod 403, and pressure plates 406 are welded at both ends of one side of the moving plate 405, and the pressure plate 406 is slidably connected to the inside of the rust removal device chassis 1.

[0033] Brief description of the usage process: When the electric push rod 301 drives the first circular gear 305 to move forward and engage with the second circular gear 402, the motor 302 will drive the rotating rod 403 to rotate. The rotation of the rotating rod 403 will cause the moving plate 405 to move on the surface of the thread 401, thereby driving the pressing plate 406 to clamp on the surface of the I-shaped steel 2, fixing the I-shaped steel 2, and achieving the effect of preventing the I-shaped steel 2 from sliding during the rust removal process.

[0034] Example 4: Based on Example 3, Figure 1-4 The shift assembly 5 includes a limit frame 501, which is welded to one side of the inner wall of the rust removal device chassis 1. The surface of the limit frame 501 is slidably connected to the first tooth plate 502, and the first tooth plate 502 can be meshed with the first circular gear 305. A rotating column 503 is welded inside the first tooth plate 502, and the surface of the rotating column 503 is rotatably connected to the push plate 504. A torsion spring 505 is sleeved on the surface of the rotating column 503, and both ends of the torsion spring 505 are connected between the push plate 504 and the first tooth plate 502 through a spring fixing member.

[0035] When the first gear plate 502 is in contact with the I-shaped steel 2, the torsion spring 505 drives the push plate 504 to reset, and then the motor 302 is rotated clockwise, so that when the first gear plate 502 moves to the left, the first gear plate 502 drives the push plate 504 to move and push the I-shaped steel 2, so that the I-shaped steel 2 moves. Since one side of the first gear plate 502 blocks the push plate 504, the push plate 504 does not rotate, thereby achieving the effect of facilitating the pushing and moving of the I-shaped steel 2.

[0036] Example 5: Based on Example 4, Figure 1 、 Figure 2 、 Figure 5-8The rust removal component 6 includes a sliding shell 610, which is welded to the bottom of the rust removal device chassis 1. Two sets of brackets 612 are slidably connected in the sliding shell 610, and the brackets 612 are internally rotatably connected to the third circular gear 616; two sets of second tooth plates 615 are slidably connected in the bracket 612, and the two sets of second tooth plates 615 are respectively engaged with the two sides of the third circular gear 616, wherein one side of the two sets of second tooth plates 615 is bolted to the second spring top rod 613, and the surface of the second spring top rod 613 is fixedly connected. A second limiting plate 614 is connected, and a first limiting shell 611 is welded to one side of the inner wall of the rust removal device chassis 1, and the second limiting plate 614 is slidably connected to the inside of the first limiting shell 611, and the second spring top rod 613 is slidably connected to the inside of the sliding hole 7; one end of the two sets of second tooth plates 615 are welded with a connecting plate 608, and the upper end of the connecting plate 608 is bolted to a grinding shell 609, and the grinding shell 609 is slidably connected to the I-shaped steel 2, and the surfaces of the two sets of connecting plates 608 are slidably connected to the second limiting shell 60 7, and the second limiting shell 607 is welded to the inside of the rust removal device chassis 1, and the first spring push rod 601 is fixedly connected to the inside of the rust removal device chassis 1 on one side; the piston end of the first spring push rod 601 is bolted to the top plate 602, and a mounting plate 604 is welded to one side of the top plate 602. The mounting plate 604 is internally rotatably connected to the movable rod 605, and both ends of the movable rod 605 are fixedly connected to the third bevel gear 606, and the upper end of the third bevel gear 606 can be meshed with the first bevel gear 304, wherein The two sets of second tooth plates 615 are internally threaded with screw rods 617; one end of the two sets of screw rods 617 is fixedly connected to the second bevel gear 603, and the second bevel gear 603 is meshed with the third bevel gear 606 at the lower end, and one end of the screw rod 617 is rotatably connected to a movable block 619, and the surface of the movable block 619 is slidably connected to the third limiting shell 618, and the third limiting shell 618 and the screw rod 617 are slidably connected, and the third limiting shell 618 is welded to one side of the inner wall of the rust removal device chassis 1.

[0037] Brief description of the usage process: When the electric push rod 301 drives the first bevel gear 304 to move away from the I-shaped steel 2, the first bevel gear 304 will mesh with the third bevel gear 606 at the upper end and push the third bevel gear 606 away from the I-shaped steel 2, so that it drives the top plate 602 to retract using the first spring push rod 601, and the third bevel gear 606 at the lower end will drive the second bevel gear 603 and the screw rod 617 to move synchronously. When the screw rod 617 moves, it will make one set of the second tooth plates 615 use the third circular gear 616 to retract. Drive the other set of second tooth plates 615 to move, so that the two sets of second tooth plates 615 move in opposite directions. When the two sets of second tooth plates 615 move, the connecting plate 608 will be used to drive the two sets of grinding shells 609 to fit on the surface of the I-shaped steel 2. The grinding shell 609 is used to remove rust from the I-shaped steel 2. The grinding shell 609 itself has the function of grinding and removing rust. When the grinding shell 609 is damaged, or when it is necessary to grind and remove rust on workpieces of other specifications, the grinding shell 609 can be disassembled and a grinding shell 609 of the corresponding specifications can be installed, and the screw rod 617 moves When the motor 302 is running, the first bevel gear 304 will be used to drive the two sets of third bevel gears 606 to rotate inside the mounting plate 604 using the movable rod 605, and the third bevel gear 606 at the lower end will drive the two sets of second bevel gears 606 to rotate inside the mounting plate 604. 3 rotates, thereby rotating the screw rod 617. When the screw rod 617 rotates, it rotates inside the movable block 619, and the screw rod 617 drives the second tooth plate 615 to slide inside the sliding shell 610 using the bracket 612. At the same time, the second tooth plate 615 drives the second spring push rod 613 to slide inside the first limit plate 404 using the second limit plate 614 to prevent it from getting stuck. Then, the second tooth plate 615 drives the grinding shell 609 to slide on the surface of the I-shaped steel 2 using the connecting plate 608 to grind and remove rust, thereby achieving the effect of facilitating and quickly removing rust.

[0038] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A rust removal device for cold-pressed steel production, comprising a rust removal device chassis (1) and a slide hole (7), characterized in that: The sliding hole (7) is opened on one side of the rust removal device chassis (1); the rust removal device chassis (1) is provided with an I-shaped steel (2); a fixing component (4) is provided inside the rust removal device chassis (1); a rust removal component (6) is provided in the middle of the bottom of the rust removal device chassis (1); a power component (3) is provided inside one side of the rust removal device chassis (1); and a shifting component (5) is provided on one side of the rust removal device chassis (1).

2. The rust removal device for cold-pressed steel production according to claim 1, characterized in that: The power assembly (3) comprises an electric push rod (301) and a motor (302), wherein the electric push rod (301) is bolted to the inside of one side of the rust removal device chassis (1), and the motor (302) is bolted to the piston end of the electric push rod (301). The output end of the motor (302) is fixedly connected to a connecting rod (303), a first bevel gear (304) is welded to the surface of the connecting rod (303), and a first circular gear (305) is welded to one side of the first bevel gear (304).

3. The rust removal device for cold-pressed steel production according to claim 1, characterized in that: The fixing assembly (4) comprises a rotating rod (403) and a first limiting plate (404); the rotating rod (403) is rotatably connected to the interior of the rust removal device chassis (1); two sets of the first limiting plates (404) are welded to one end of the rotating rod (403); and the two sets of the first limiting plates (404) are rotatably connected to the rust removal device chassis (1); a second circular gear (402) is welded to the middle of the surface of the rotating rod (403).

4. The rust removal device for cold-pressed steel production according to claim 3, characterized in that: One end of the rotating rod (403) is provided with a thread (401), the surface of the thread (401) is threadedly connected to a moving plate (405), and the moving plate (405) is sleeved on the surface of the rotating rod (403), and both ends of one side of the moving plate (405) are welded with a pressing plate (406), and the pressing plate (406) is slidably connected to the inside of the rust removal device chassis (1).

5. The rust removal device for cold-pressed steel production according to claim 2, characterized in that: The shift assembly (5) includes a limit frame (501), the limit frame (501) is welded to one side of the inner wall of the rust removal device base frame (1), the limit frame (501) is slidably connected to the surface of a first tooth plate (502), and the first tooth plate (502) can be meshed with the first circular gear (305), a rotating column (503) is welded inside the first tooth plate (502), and the surface of the rotating column (503) is rotatably connected to a push plate (504), a torsion spring (505) is sleeved on the surface of the rotating column (503), and both ends of the torsion spring (505) are connected between the push plate (504) and the first tooth plate (502) through a spring fixing member.

6. The rust removal device for cold-pressed steel production according to claim 2, characterized in that: The rust removal assembly (6) comprises a sliding shell (610), the sliding shell (610) being welded to the bottom of the rust removal device chassis (1), two sets of brackets (612) being slidably connected inside the sliding shell (610), and a third circular gear (616) being rotatably connected inside the brackets (612).

7. The rust removal device for cold-pressed steel production according to claim 6, characterized in that: Two sets of second tooth plates (615) are slidably connected inside the bracket (612), and the two sets of second tooth plates (615) are respectively meshed with two sides of the third circular gear (616), wherein one side of the two sets of second tooth plates (615) is bolted to a second spring top rod (613), and the surface of the second spring top rod (613) is fixedly connected to a second limit plate (614), and a first limit shell (611) is welded to one side of the inner wall of the rust removal device base frame (1), and the second limit plate (614) is slidably connected to the inside of the first limit shell (611), and the second spring top rod (613) is slidably connected to the inside of the sliding hole (7).

8. The rust removal device for cold-pressed steel production according to claim 7, characterized in that: One end of each of the two groups of the second tooth plates (615) is welded with a connecting plate (608), the upper end of the connecting plate (608) is bolted to a grinding shell (609), and the grinding shell (609) is slidingly connected to the I-shaped steel (2), and the surfaces of the two groups of the connecting plates (608) are slidably connected to a second limiting shell (607), and the second limiting shell (607) is welded to the inside of the rust removal device chassis (1), and a first spring push rod (601) is fixedly connected to the inside of one side of the rust removal device chassis (1).

9. The rust removal device for cold-pressed steel production according to claim 8, characterized in that: The piston end of the first spring push rod (601) is bolted to a top plate (602), a mounting plate (604) is welded to one side of the top plate (602), a movable rod (605) is rotatably connected inside the mounting plate (604), both ends of the movable rod (605) are fixedly connected to a third bevel gear (606), and the upper end third bevel gear (606) can be meshed with the first bevel gear (304), wherein the two sets of the second tooth plates (615) are both threadedly connected to a screw rod (617).

10. The rust removal device for cold-pressed steel production according to claim 9, characterized in that: One end of each of the two groups of screw rods (617) is fixedly connected to a second bevel gear (603), and the second bevel gear (603) is meshedly connected to a third bevel gear (606) at the lower end. One end of the screw rod (617) is rotatably connected to a movable block (619), and a third limiting shell (618) is slidably connected to the surface of the movable block (619), and the third limiting shell (618) and the screw rod (617) are slidably connected. The third limiting shell (618) is welded to one side of the inner wall of the rust removal device chassis (1).

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