Rust removal device and method for ship protection plate manufacturing

Abstract

The invention discloses a rust removal device and method for ship protection plate manufacturing, the rust removal device comprises four rubber bottom supports, a conveying line is fixed to the top ends of the four rubber bottom supports, and a chain plate conveying mechanism used for pulling a ship protection plate to move in the X-axis direction is installed in the conveying line; the front outer wall and the rear outer wall of the conveying line are each provided with a righting guide structure used for preventing a ship protection plate from toppling over. And the two hollow stand columns are installed on the front outer wall and the rear outer wall of the conveying line correspondingly, and lead screw lifting modules are installed on the outer walls of the same sides of the two hollow stand columns correspondingly. According to the technical scheme, the chain plate conveying mechanism and the laser rust removers on the front side and the rear side are introduced, so that double-face simultaneous treatment of the protection plate is achieved, an additional overturning step is not needed, the rust removal operation efficiency is improved, and the dead time of a production line is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of ship fender processing, and in particular to a rust removal device and method for manufacturing ship fenders. Background Art

[0002] Ship fenders are important components for hull protection. They are usually installed below the waterline of the hull to enhance the strength and durability of the hull structure. Such fenders are usually made of high-strength steel or other alloy materials to ensure that they can withstand high pressure and changing marine environments during operation at sea. Rust removal devices play a vital role in the manufacturing process of fenders. The rust removal device is mainly used to remove rust and dirt on the surface of the steel plate, ensure the cleanliness and smoothness of the steel plate surface, and provide a good foundation for subsequent coating and anti-corrosion treatment. The rust removal device mainly adopts mechanical cleaning methods. Mechanical cleaning uses high-pressure water flow or sandblasting machines and other equipment to physically remove the rust layer and dirt on the surface of the steel plate to achieve a clean and smooth effect. However, at this stage, sandblasting and shot blasting rust removal devices are mainly used to remove rust on the single wall of the protective plate during use. This means that after completing the rust removal on one side, the plate needs to be flipped or adjusted in position before the other side can be processed. This process not only increases the operating steps and time costs, but also directly leads to frequent stagnation of the production line. At the same time, due to the need to flip or adjust the position of the protective plate, the protective plate will also be unevenly treated at different parts due to position adjustment, thereby affecting the subsequent coating and anti-corrosion treatment effects. Summary of the invention

[0003] The object of the present invention is to provide a rust removal device and method for manufacturing ship fenders, wherein a chain conveying mechanism and a straightening guide structure enable the ship fenders to move horizontally in the positive or negative direction of the X-axis in an upright posture, and during the movement, the laser rust removers on both sides move under the control of a screw lifting module and a Y-axis two-stage pitch adjustment module and complete the rust removal work on the front and rear walls of the ship fenders to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a rust removal device for manufacturing ship fenders, comprising:

[0005] Rubber bottom brackets, the tops of the four rubber bottom brackets are fixed with transmission lines, and the transmission lines are internally installed with chain plate conveying mechanisms for pulling the ship fenders to move in the X-axis direction, and the front and rear outer walls of the transmission lines are both installed with straightening guide structures for preventing the ship fenders from tipping over;

[0006] Hollow columns, the two hollow columns are respectively installed on the front and rear outer walls of the transmission line, and a screw lifting module is installed on the outer wall on the same side of the two hollow columns. The bottom ends of the two screw lifting modules are installed with gear transmission parts for maintaining power connection, and a stepper motor is installed on the top of one of the screw lifting modules, and a Y-axis two-stage distance adjustment module is installed on the movable end of the stepper motor, and a laser rust remover is installed on the movable end of the Y-axis two-stage distance adjustment module. The Y-axis two-stage distance adjustment module is used to adjust the distance between the laser rust remover and the ship protection plate, and a PLC control panel is installed on the outer wall of one side of the transmission line, and the output end of the PLC control panel is electrically connected to the chain conveying mechanism, the stepper motor, and the input end of the Y-axis two-stage distance adjustment module.

[0007] Preferably, the straightening guide structure includes two symmetrical square-mouthed columns fixed on the front and rear outer walls of the conveyor line, a rectangular sliding sleeve slidably bolted to one end of the surface of the square-mouthed column, a longitudinal column slidably bolted inside the rectangular sliding sleeve, and a U-shaped cross arm fixed to the same end of the two longitudinal columns.

[0008] Preferably, a second locking bolt is installed on one side outer wall of the rectangular sliding sleeve, one end of the second locking bolt extends to the interior of the rectangular sliding sleeve and abuts against one side outer wall of the square-mouth column, and a first locking bolt is installed on one side outer wall of the rectangular sliding sleeve, one end of the first locking bolt extends to the interior of the rectangular sliding sleeve and abuts against the outer wall of the longitudinal column.

[0009] Preferably, a concave platform is fixed on one side of the bottom end of the U-shaped cross arm, and two guide pillars are fixed on the outer wall of the concave platform on one side close to the vertical center reference plane of the conveying line.

[0010] Preferably, the chain conveying mechanism includes sprockets rotatably installed on both sides of the conveyor line, stainless steel chain plates wrapped around the outer circumferences of the two sprockets, and a reduction motor installed on the outer wall of one side of the conveyor line, and the output end of the reduction motor is fixedly connected to one end of one of the sprockets through a coupling.

[0011] Preferably, the screw lifting module includes a protective shell fixed on the outer wall of one side of the hollow column, a ball screw rotatably installed inside the protective shell, a nut pair installed at the thread at one end of the ball screw surface, and a slide installed on the outer wall of one side of the nut pair. The slide is slidably matched with the protective shell, and the Y-axis two-stage pitch adjustment module is installed on the outer wall of one side of the slide. A photoelectric switch for detecting the position of the slide is also installed on the outer wall of one side of the protective shell.

[0012] Preferably, the stepper motor is mounted on the top of one of the protective shells, and the output end of the stepper motor is fixedly connected to the top of the ball screw via a coupling.

[0013] Preferably, the pair of gear transmission components includes a toothed disc installed at the bottom end of the protective shell, and the two toothed discs are meshed with each other. The pair of gear transmission components also includes a protective ring fixed at the bottom end of the transmission line and covering the toothed disc.

[0014] Preferably, the Y-axis two-stage distance adjustment module includes a double-track table fixed on the outer wall of one side of the slide table, a slide seat slidably mounted on the surface of the double-track table, and a Y-axis lead screw linear module mounted on the surface of the slide seat for driving the laser rust remover to slide on the Y-axis. A Y-axis cylinder for driving the slide seat to slide on the Y-axis is installed on the outer wall of one side of the double-track table.

[0015] The present invention also provides a rust removal method for manufacturing ship fenders, such as the rust removal device for manufacturing ship fenders as described above, comprising the following steps:

[0016] S101: The ship fender workpiece to be derusted is placed in an upright position in the chain plate conveying mechanism, and the staff manually adjusts the straightening guide structure so that the straightening guide structures on the front and rear sides of the chain plate conveying mechanism are in contact with the front wall or the back wall of the ship fender;

[0017] S102: The PLC control panel controls the chain plate conveying mechanism to work according to the set direction, speed, angle, and response time, so that the ship protection plate can be driven and move horizontally along the positive direction or reverse direction of the X-axis;

[0018] S103: During the horizontal movement of the ship protection plate, the Y-axis dual-stage distance adjustment module actively moves the laser rust remover on the Y-axis, so as to adjust the distance between the laser rust remover and the ship protection plate;

[0019] S104: The laser rust removers at the front and rear sides irradiate the surface of the guard plate with a high-energy laser beam, which can completely remove the rust and dirt on the surface without damaging the surface of the guard plate;

[0020] S105: The screw lifting module, the gear transmission parts, and the stepping motor can automatically adjust the height of the laser rust remover according to the vertical height and surface condition of the protective plate to ensure that the laser beam always remains within the optimal focal length range. When the laser rust remover is moved to the bottom of the plate by the screw lifting module, the rust removal work of the protective plate is completed.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the rust removal device and method for manufacturing ship fenders introduces a technical solution of a chain plate conveying mechanism and front and rear double-sided laser rust removers to achieve simultaneous double-sided processing of the fenders without the need for additional flipping steps, thereby improving the efficiency of rust removal operations and reducing the downtime of the production line; and through the laser rust remover, under the control of the screw lifting module and the Y-axis two-stage pitch adjustment module, the position of the laser beam can be accurately controlled to ensure the consistency of the fender surface and the high-quality rust removal effect. Compared with manual operation or traditional equipment, the laser rust remover can process fenders of different shapes and sizes more finely, effectively avoiding quality problems caused by uneven processing, and providing a good foundation for subsequent painting and anti-corrosion treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0023] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 3 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 4 The three-dimensional structure of the present invention is shown in FIG. Figure 3 ;

[0026] Figure 5 The three-dimensional structure of the present invention is shown in FIG. Figure 4

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the righting and guiding structure of the second embodiment of the present invention;

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the concave platform according to the second embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the three-dimensional structure of the Y-axis dual-stage pitch adjustment module of the third embodiment of the present invention.

[0030] In the figure: 1. rubber base; 2. transmission line; 3. chain plate conveying mechanism; 301. reduction motor; 302. stainless steel chain plate; 4. square mouth column; 5. straightening guide structure; 501. rectangular sliding sleeve; 502. first locking bolt; 503. second locking bolt; 504. longitudinal column; 505. U-shaped cross arm; 506. concave table; 507. guide column; 6. hollow column; 7. screw lifting module; 701. protective shell; 702. ball screw; 703. slide table; 704. photoelectric switch; 8. gear transmission parts; 9. stepping motor; 10. Y-axis two-stage pitch adjustment module; 1001. double-track table; 1002. slide seat; 1003. Y-axis cylinder; 1004. Y-axis screw linear module; 11. laser rust remover; 12. PLC control panel. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1, by Figures 1 to 5 The present invention comprises a rubber base 1, a transmission line 2 is fixed to the top of four rubber bases 1, and a chain plate conveying mechanism 3 for pulling the ship protection plate to move in the X-axis direction is installed inside the transmission line 2, and a straightening guide structure 5 for preventing the ship protection plate from tipping over is installed on the front and rear outer walls of the transmission line 2;

[0033] Hollow column 6, two hollow columns 6 are respectively installed on the front and rear outer walls of the conveyor line 2, and a screw lifting module 7 is installed on the outer wall on the same side of the two hollow columns 6. The bottom ends of the two screw lifting modules 7 are installed with a pair of gear transmission parts 8 for maintaining power connection, and a stepper motor 9 is installed on the top of one of the screw lifting modules 7. The active end of the stepper motor 9 is installed with a Y-axis two-stage pitch adjustment module 10, and the active end of the Y-axis two-stage pitch adjustment module 10 is installed with a laser rust remover 11. The laser rust remover 11 irradiates the surface of the protective plate with a high-energy laser beam, which can effectively remove rust, oil and other dirt;

[0034] The Y-axis two-stage distance adjustment module 10 is used to adjust the distance between the laser rust remover 11 and the ship protection plate. A PLC control panel 12 is installed on the outer wall of one side of the transmission line 2. The output end of the PLC control panel 12 is electrically connected to the chain plate conveying mechanism 3, the stepper motor 9, and the input end of the Y-axis two-stage distance adjustment module 10. The screw lifting module 7 cooperates with the chain plate conveying mechanism 3 to flexibly adjust the working range of the laser rust remover 11 to achieve full coverage of the protection plate surface.

[0035] The PLC control panel 12 ensures the synchronous operation of each component, coordinates the movement and working rhythm of the chain conveyor mechanism 3, the stepper motor 9, the screw lifting module 7, the Y-axis two-stage distance adjustment module 10, and the laser rust remover 11, so as to achieve the best rust removal effect;

[0036] The chain conveying mechanism 3 includes sprockets rotatably installed on both sides of the conveying line 2, stainless steel chain plates 302 wound around the outer peripheral surfaces of the two sprockets, and a reduction motor 301 installed on the outer wall of one side of the conveying line 2. The output end of the reduction motor 301 is fixedly connected to one end of one of the sprockets through a coupling. During the operation of the chain conveying mechanism 3, the PLC control panel 12 controls the reduction motor 301 to work according to the set direction, speed, angle, and response time. The reduction motor 301 drives the stainless steel chain plate 302 to move through the sprocket, and the stainless steel chain plate 302 drives the protective plate to move horizontally. It is not only responsible for transportation, but also ensures that the protective plate does not tilt or shift during the movement.

[0037] The screw lifting module 7 includes a protective shell 701 fixed on the outer wall of one side of the hollow column 6, a ball screw 702 rotatably installed inside the protective shell 701, a nut pair installed at the threaded portion of one end of the surface of the ball screw 702, and a slide 703 installed on the outer wall of one side of the nut pair. The slide 703 is slidably matched with the protective shell 701, and the Y-axis two-stage pitch adjustment module 10 is installed on the outer wall of one side of the slide 703. A photoelectric switch 704 for detecting the position of the slide 703 is also installed on the outer wall of one side of the protective shell 701. The stepper motor 9 is installed at the top of one of the protective shells 701, and the output end of the stepper motor 9 is fixedly connected to the top of the ball screw 702 through a coupling.

[0038] The gear transmission member 8 includes a toothed disc installed at the bottom end of the protective shell 701, and the two toothed discs are meshed with each other. The gear transmission member 8 also includes a protective ring fixed at the bottom end of the transmission line 2 and covering the toothed disc;

[0039] When controlling the Z-axis height of the laser rust remover 11, the stepper motor 9 drives the ball screw 702 in one of the protective shells 701 to rotate, so that the ball screw 702 drives the slide 703, the Y-axis two-stage pitch adjustment module 10, the laser rust remover 11 and other components to be lifted and lowered through the nut pair. In this process, the other screw lifting module 7 synchronizes the gear transmission part 8 to make the two laser rust removers 11 lift and lower synchronously, and the photoelectric switch 704 is used to detect the sliding position of the slide 703 to avoid excessive sliding of the slide 703.

[0040] A rust removal method for manufacturing a ship fender in this embodiment, such as the rust removal device for manufacturing a ship fender, comprises the following steps:

[0041] S101: The ship fender workpiece to be derusted is placed in an upright position in the chain plate conveying mechanism 3, and the staff manually adjusts the straightening guide structure 5 so that the straightening guide structures 5 on the front and rear sides of the chain plate conveying mechanism 3 are in contact with the front wall or the back wall of the ship fender;

[0042] S102: The PLC control panel 12 controls the chain plate conveying mechanism 3 to work according to the set direction, speed, angle, and response time, so that the ship protection plate can be driven and move horizontally along the positive direction or the reverse direction of the X-axis;

[0043] S103: During the horizontal movement of the ship protection plate, the Y-axis dual-stage distance adjustment module 10 actively moves the laser rust remover 11 along the Y-axis, thereby adjusting the distance between the laser rust remover 11 and the ship protection plate;

[0044] S104: The laser rust removers 11 at the front and rear sides irradiate the surface of the protection plate with a high-energy laser beam, thereby completely removing the rust and dirt on the surface without damaging the surface of the protection plate;

[0045] S105: The screw lifting module 7, the gear transmission part 8, and the stepping motor 9 can automatically adjust the height of the laser rust remover 11 according to the vertical height and surface condition of the protective plate to ensure that the laser beam always remains within the optimal focal length range. When the laser rust remover 11 is moved to the bottom of the plate by the screw lifting module 7, the rust removal work of the protective plate is completed.

[0046] Embodiment 2, based on embodiment 1, Figure 6 and Figure 7 It is shown that the straightening guide structure 5 includes two symmetrical square-mouthed upright posts 4 fixed on the front and rear outer walls of the conveyor line 2, a rectangular sliding sleeve 501 slidably bolted to one end of the surface of the square-mouthed upright posts 4, a longitudinal post 504 slidably bolted inside the rectangular sliding sleeve 501, and a U-shaped cross arm 505 fixed to the same end of the two longitudinal posts 504;

[0047] A second locking bolt 503 is installed on one outer wall of the rectangular sleeve 501, one end of the second locking bolt 503 extends to the interior of the rectangular sleeve 501 and abuts against one outer wall of the square mouth column 4, a first locking bolt 502 is installed on one outer wall of the rectangular sleeve 501, one end of the first locking bolt 502 extends to the interior of the rectangular sleeve 501 and abuts against the outer wall of the longitudinal column 504, a concave platform 506 is fixed to one side of the bottom end of the U-shaped cross arm 505, and two guide pillars 507 are fixed on the outer wall of the concave platform 506 close to the vertical center reference plane of the conveyor line 2. When the staff places the protective plate on the chain plate conveyor mechanism 3, the staff pushes the longitudinal column 504 and the U-shaped cross arm 505 in the direction of the protective plate until the U-shaped cross arm 505 contacts the front wall or the rear wall of the protective plate, and then the staff uses the first locking bolt 502 to press against the longitudinal column 504, so that the two U-shaped cross arms 505 actively straighten the protective plate;

[0048] The staff can also manually slide the rectangular sleeve 501 in both directions to adjust the height of the U-shaped cross arm 505, the concave platform 506 and other components. At this time, the second locking bolt 503 can be used to lock the position of the rectangular sleeve 501.

[0049] When the chain conveyor mechanism 3 drives the protective plate to move in the positive and reverse directions of the X-axis, the guide column 507 guides the protective plate in the entire conveying direction of the chain conveyor mechanism 3, so as to minimize the shaking of the protective plate, so that the laser rust remover 11 can be accurately aimed at the target area during processing.

[0050] Embodiment 3, based on embodiment 1, Figure 8 The Y-axis two-stage pitch adjustment module 10 includes a double-track platform 1001 fixed on the outer wall of one side of the slide 703, a slide seat 1002 slidably mounted on the surface of the double-track platform 1001, and a Y-axis lead screw linear module 1004 mounted on the surface of the slide seat 1002 for driving the laser rust remover 11 to slide on the Y-axis. A Y-axis cylinder 1003 for driving the slide seat 1002 to slide on the Y-axis is installed on the outer wall of one side of the double-track platform 1001. When controlling the distance between the laser rust remover 11 and the protective plate, the slide seat 1002 is driven by the Y-axis cylinder 1003. 02 Slide in the extended direction of the Y-axis of the double-track table 1001. When the movement range of the Y-axis cylinder 1003 is not enough to adjust the laser rust remover 11 to the appropriate focal length, the staff drives the laser rust remover 11 to perform secondary distance adjustment through the Y-axis lead screw linear module 1004 to ensure that the laser beam of the laser rust remover 11 always remains within the optimal focal length range, thereby achieving the best rust removal effect. It can effectively process on protective plates of different thicknesses, avoiding the problem of uneven processing or damage to the substrate due to improper focal length.

[0051] When the embodiment of the present application is in use, the staff first places the ship fender workpiece to be derusted into the chain conveyor mechanism 3 in an upright posture. Before that, the staff manually adjusts the straightening guide structure 5 so that the straightening guide structures 5 on the front and rear sides of the chain conveyor mechanism 3 are in contact with the front wall or back wall of the ship fender, so as to ensure that the ship fender maintains the correct position and posture during the rust removal process, so that it is in a position suitable for treatment by the laser rust remover 11. After the ship fender is debugged, the staff starts the chain conveyor mechanism 3, the stepper motor 9 and the laser rust remover 11 through the PLC control panel 12 to work. The PLC control panel 12 controls the chain conveyor mechanism 3 to work according to the set direction, speed, angle, and response time, so that the ship fender can be driven and moved horizontally in the positive or reverse direction of the X-axis, that is, the ship fender is driven by the chain conveyor mechanism 3 to move in the positive direction or reverse direction at a certain frequency, thereby causing the ship fender and the laser rust remover 11 to change position. In the process of horizontal movement of the ship fender In the process, the Y-axis double-stage distance adjustment module 10 actively moves the laser rust remover 11 in the Y-axis to adjust the distance between the laser rust remover 11 and the ship protection plate. The laser rust remover 11 irradiates the surface of the protection plate with a high-energy laser beam, which can completely remove the rust and dirt on the surface without damaging the surface of the protection plate. In addition, since the two laser rust removers 11 work simultaneously on the front and back of the plate, the double-sided rust removal of the protection plate can be achieved without the need for additional flipping steps. The screw lifting module 7, the gear transmission member 8, and the stepping motor 9 can adjust the distance between the laser rust remover 11 and the ship protection plate according to the protection plate surface. The height of the laser rust remover 11 is automatically adjusted according to the vertical height and surface condition of the plate to ensure that the laser beam always remains within the optimal focal length range, and the Y-axis two-stage distance adjustment module 10 is responsible for the horizontal movement of the laser rust remover 11, so that the laser rust remover 11 can cover the entire surface of the protective plate. When the laser rust remover 11 is moved to the bottom of the plate by the screw lifting module 7, the rust removal work of the protective plate is completed. Then the staff removes the protective plate from the device and performs rust removal on another protective plate according to the same steps.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rust removal device for manufacturing ship fenders, characterized in that: include: A rubber base (1), a conveyor line (2) is fixed to the top of four of the rubber bases (1), a chain plate conveying mechanism (3) for pulling the ship protection plate to move in the X-axis direction is installed inside the conveyor line (2), and a straightening guide structure (5) for preventing the ship protection plate from tipping over is installed on the front and rear outer walls of the conveyor line (2); A hollow column (6), wherein two of the hollow columns (6) are respectively mounted on the front and rear outer walls of the transmission line (2), a screw lifting module (7) is mounted on the outer wall on the same side of the two hollow columns (6), a pair of gear transmission components (8) for maintaining power connection are mounted at the bottom ends of the two screw lifting modules (7), a stepping motor (9) is mounted on the top end of one of the screw lifting modules (7), a Y-axis two-stage pitch adjustment module (10) is mounted on the movable end of the stepping motor (9), and a laser rust remover (11) is mounted on the movable end of the Y-axis two-stage pitch adjustment module (10), the Y-axis two-stage pitch adjustment module (10) is used to adjust the distance between the laser rust remover (11) and the ship protection plate, and a PLC control panel (12) is mounted on the outer wall on one side of the transmission line (2), the output end of the PLC control panel (12) is electrically connected to the chain plate conveying mechanism (3), the stepping motor (9), and the input end of the Y-axis two-stage pitch adjustment module (10).

2. A rust removal device for manufacturing ship fenders according to claim 1, characterized in that: The straightening guide structure (5) comprises two symmetrical square-mouthed upright posts (4) fixed on the front and rear outer walls of the conveyor line (2), a rectangular sliding sleeve (501) slidably bolted at one end of the surface of the square-mouthed upright posts (4), a longitudinal post (504) slidably bolted inside the rectangular sliding sleeve (501), and a U-shaped cross arm (505) fixed at the same end of the two longitudinal posts (504).

3. A rust removal device for manufacturing ship fenders according to claim 2, characterized in that: A second locking bolt (503) is mounted on one side outer wall of the rectangular sliding sleeve (501), one end of the second locking bolt (503) extends into the interior of the rectangular sliding sleeve (501) and abuts against one side outer wall of the square-mouthed column (4); a first locking bolt (502) is mounted on one side outer wall of the rectangular sliding sleeve (501), one end of the first locking bolt (502) extends into the interior of the rectangular sliding sleeve (501) and abuts against the outer wall of the longitudinal column (504).

4. The rust removal device for manufacturing ship fenders according to claim 2, characterized in that: A concave platform (506) is fixed to one side of the bottom end of the U-shaped cross arm (505), and two guide pillars (507) are fixed to the outer wall of the concave platform (506) on one side close to the vertical center reference plane of the transmission line (2).

5. The rust removal device for manufacturing ship fenders according to claim 1, characterized in that: The chain plate conveying mechanism (3) comprises sprockets rotatably mounted on both sides of the interior of the transmission line (2), stainless steel chain plates (302) wound around the outer circumferences of the two sprockets, and a reduction motor (301) mounted on an outer wall of one side of the transmission line (2), wherein the output end of the reduction motor (301) is fixedly connected to one end of one of the sprockets via a coupling.

6. The rust removal device for manufacturing ship fenders according to claim 1, characterized in that: The screw lifting module (7) comprises a protective shell (701) fixed on the outer wall of one side of the hollow column (6), a ball screw (702) rotatably mounted inside the protective shell (701), a nut pair mounted at a threaded portion on one end of the surface of the ball screw (702), and a slide (703) mounted on the outer wall of one side of the nut pair, the slide (703) slidably cooperates with the protective shell (701), the Y-axis two-stage pitch adjustment module (10) is mounted on the outer wall of one side of the slide (703), and a photoelectric switch (704) for detecting the position of the slide (703) is also mounted on the outer wall of one side of the protective shell (701).

7. A rust removal device for manufacturing ship fenders according to claim 6, characterized in that: The stepper motor (9) is mounted on the top end of one of the protective shells (701), and the output end of the stepper motor (9) is fixedly connected to the top end of the ball screw (702) via a coupling.

8. The rust removal device for manufacturing ship fenders according to claim 6, characterized in that: The pair of gear transmission components (8) comprises a toothed disc mounted at the bottom end of the protective shell (701), the two toothed discs meshing with each other, and the pair of gear transmission components (8) further comprises a protective ring fixed at the bottom end of the transmission line (2) and covering the toothed disc.

9. The rust removal device for manufacturing ship fenders according to claim 6, characterized in that: The Y-axis two-stage pitch adjustment module (10) comprises a double-track platform (1001) fixed on the outer wall of one side of the slide table (703), a slide seat (1002) slidably mounted on the surface of the double-track platform (1001), and a Y-axis lead screw linear module (1004) mounted on the surface of the slide seat (1002) and used for driving the laser rust remover (11) to slide on the Y-axis. A Y-axis cylinder (1003) is mounted on the outer wall of one side of the double-track platform (1001) and used for driving the slide seat (1002) to slide on the Y-axis.

10. A rust removal method for manufacturing ship fenders, comprising the rust removal device for manufacturing ship fenders according to any one of claims 1 to 9, characterized in that: The following steps are involved: S101: The ship fender workpiece to be derusted is placed in an upright position in the chain conveyor mechanism (3), and the staff manually adjusts the straightening guide structure (5) so that the straightening guide structures (5) on the front and rear sides of the chain conveyor mechanism (3) are in contact with the front wall or the back wall of the ship fender; S102: The PLC control panel (12) controls the chain plate conveying mechanism (3) to operate according to the set direction, speed, angle, and response time, so that the ship protection plate can be driven and horizontally moved along the positive direction or the reverse direction of the X-axis; S103: During the horizontal movement of the ship protection plate, the Y-axis dual-stage distance adjustment module (10) actively moves the laser rust remover (11) along the Y-axis, thereby adjusting the distance between the laser rust remover (11) and the ship protection plate; S104: The laser rust removers (11) at the front and rear sides irradiate the surface of the protective plate with a high-energy laser beam, thereby completely removing the rust and dirt on the surface without damaging the surface of the protective plate; S105: The screw lifting module (7), the gear transmission member (8), and the stepping motor (9) can automatically adjust the height of the laser rust remover (11) according to the vertical height and surface condition of the protective plate, ensuring that the laser beam always remains within the optimal focal length range. When the laser rust remover (11) is moved to the bottom of the plate by the screw lifting module (7), the rust removal work of the protective plate is completed.

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