Steel pipe laser rust removal device
By designing a laser rust removal device for steel pipes, and utilizing a combination of laser nozzles and electric steel rollers, the device achieves efficient removal of rust from the inner wall of steel pipes, solving the problems of low efficiency and high labor intensity in existing technologies, and realizing mechanized rust removal.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI INSTITUTE OF ARCHITECTURE AND CIVIL ENGINEERING
- Filing Date
- 2025-08-01
- Publication Date
- 2026-05-15
AI Technical Summary
In existing technologies, the removal of rust from the inner wall of steel pipes is inefficient, labor-intensive, and difficult to achieve mechanized rust removal.
Design a laser rust removal device for steel pipes, including components such as an electric cylinder, a laser nozzle, an electric cylinder support, a column, an electric steel roller, and a worktable. The laser nozzle emits a laser beam to remove rust from the inner wall of the steel pipe, and the rotation of the electric steel roller achieves full inner wall scanning, reducing the labor intensity of workers.
It has achieved efficient removal of rust from the inner wall of steel pipes, reduced the labor intensity of workers, and realized mechanized operation of rust removal from the inner wall of steel pipes.
Smart Images

Figure CN224238515U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a rust removal device for steel pipes, specifically a laser rust removal device for steel pipes. Background Technology
[0002] With the development of my country's industrialization and construction industry, the demand for steel pipes has gradually increased. However, due to the influence of storage conditions and working environment, a large number of steel pipes rust, which greatly affects their service life. Removing rust from the inner wall of steel pipes is difficult, mainly relying on manual rust removal by workers using handheld rust removal equipment. This method is not only inefficient and labor-intensive, but also has significant limitations. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a laser rust removal device for steel pipes, which can remove rust from the inner wall of steel pipes, reduce the labor intensity of workers, and realize the mechanization of rust removal from the inner wall of steel pipes.
[0004] The technical solution adopted by this utility model to solve the technical problem is a laser rust removal device for steel pipes, including an electric cylinder, a laser nozzle, an electric cylinder support, a column A, an electric steel roller, a column B, a worktable, support legs, through holes A and B, a square hole, a laser host, a rectangular groove, and a control system. The electric cylinder has one unit, with a circular through hole A at its tail. The laser nozzle is designed as a rectangular boss and is installed at the end of the output end of the electric cylinder with its emission angle pointing downwards. The laser nozzle and the electric cylinder are connected by screws. The fasteners are connected, and the laser beam emitted by the laser nozzle is strip-shaped, parallel to the axis of the pipe to be derusted. The electric cylinder bracket is designed as a trapezoid, and there is one electric cylinder bracket. The upper end of the electric cylinder bracket is connected to the middle of the outer wall of the electric cylinder through threaded fasteners. The lower end of the electric cylinder bracket is inserted into a square hole, which is designed as a square blind hole. There are two square holes, which are set on the upper surface of the worktable. The lower end of the electric cylinder bracket is fixed to the worktable with bolts. The legs are designed as cuboids, and there are four legs. The upper surface of the legs is connected to the lower surface of the worktable.
[0005] Furthermore, the worktable is designed as a cuboid with a trapezoidal boss at the top. Four electric steel rollers are installed, each positioned between and supported by two columns A. Columns A are also cuboids, with a total of eight columns A. The lower surfaces of columns A are connected to the upper surface of the worktable via screws. The four electric steel rollers are arranged in pairs, with the two rollers on the same side located on the same vertical plane. The worktable surface directly below the two rollers on each side has a rectangular recess. The groove is designed to be rectangular, with two rectangular grooves. The column B is designed to be cuboid, with one column B. The lower end of column B is mounted on the workbench with screws and is located at one end of the workbench. The upper end of column B has a circular through hole B. The electric cylinder is fixedly connected to column B through through hole B and through hole A via bolts. The electric cylinder is set horizontally. The steel pipe to be derusted is supported by four electric steel rollers and can rotate with the rotation of the electric steel rollers. The laser nozzle can be inserted into the interior of the steel pipe to be derusted under the drive of the electric cylinder.
[0006] Furthermore, the laser host is designed as a cube, the laser nozzle is electrically connected to the laser host, and both the laser nozzle and the electric steel roller are controlled by the control system, which is a PLC control system. The control system is connected to the power supply, and the laser host is electrically connected to the control system.
[0007] The aforementioned laser rust removal device for steel pipes has an inner diameter greater than 300mm.
[0008] In the aforementioned laser rust removal device for steel pipes, the diameter of the through hole B is 16 mm, and the diameter of the through hole A is 16 mm.
[0009] In the aforementioned laser rust removal device for steel pipes, the electric cylinder support is welded from a square tube.
[0010] The aforementioned laser rust removal device for steel pipes includes a two-stage electric cylinder.
[0011] In the aforementioned laser rust removal device for steel pipes, a bearing is installed between the column A and the electric cylinder.
[0012] In the aforementioned laser rust removal device for steel pipes, the width of the rectangular groove is greater than the thickness of the electric steel roller.
[0013] The aforementioned laser rust removal device for steel pipes uses a Siemens 1200 PLC control system as its PLC control system.
[0014] Compared with the prior art, the beneficial effects of the device for laser rust removal of steel pipes of this utility model are as follows.
[0015] (1) This utility model is equipped with a laser nozzle, which can remove rust from the inner wall of the steel pipe and achieve the function of rust removal.
[0016] (2) This utility model is equipped with an electric cylinder, which can be designed to remove rust according to the length of the steel pipe, making it convenient to use.
[0017] (3) This utility model is equipped with an electric steel roller, which can rotate the steel pipe to be derusted. Combined with the laser axial feed, it can realize the laser full inner wall scanning rust removal, reduce the labor intensity of workers, and realize the mechanization of steel pipe inner wall rust removal.
[0018] (4) This utility model is equipped with an electric steel roller, which can withstand a large weight of steel pipe. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Figure 1 This is a schematic diagram of the structure of the laser rust removal device for steel pipes of this utility model when rust removal begins.
[0021] Figure 2 This is a schematic diagram of the structure of the laser rust removal device for steel pipes after rust removal is completed.
[0022] Figure 3 This is a front structural diagram of a laser rust removal device for steel pipes according to the present invention.
[0023] Figure 4 This is a schematic diagram of the structure for connecting and fixing the electric cylinder to the electric cylinder bracket.
[0024] Figure 5 This is a structural diagram showing the removal of the electric cylinder and its support bracket.
[0025] Figure 6 This is a schematic diagram of the workbench structure.
[0026] In the diagram: 1. Electric cylinder, 2. Laser nozzle, 3. Electric cylinder bracket, 4. Steel pipe, 5. Column A, 6. Electric steel roller, 7. Column B, 8. Worktable, 9. Support leg, 10. Through hole A, 11. Square hole, 12. Laser host, 13. Rectangular groove, 14. Through hole B. Detailed Implementation
[0027] Figures 1-4The embodiment shown illustrates a laser rust removal device for steel pipes, comprising one electric cylinder 1 with a circular through hole A10 at its tail. The electric cylinder 1 is used to change the feed rate for rust removal. A single laser nozzle 2, designed as a rectangular boss, is installed at the output end of the electric cylinder 1 with its emission angle pointing downwards. The laser nozzle 2 is connected to the electric cylinder 1 via threaded fasteners and is used for rust removal. The laser beam emitted by the laser nozzle 2 is strip-shaped and parallel to the axis of the steel pipe 4 to be rusted. A trapezoidal electric cylinder support 3 is provided, with its upper end connected to the middle of the outer wall of the electric cylinder 1 via threaded fasteners. A square hole 11 is inserted into the lower end of the electric cylinder support 3, used to support the electric cylinder 1 and keep it horizontal. Two square blind holes 11 are provided, located on the upper surface of the worktable 8. The lower end of the electric cylinder support 3 is fixed to the worktable 8 with bolts.
[0028] Figures 5-6 The illustrated embodiment shows that the workbench 8 is designed as a cuboid with a trapezoidal boss at the top. The workbench 8 provides a platform for the device. Four electric steel rollers 6 are provided, each placed between and supported by two columns A5. The electric steel rollers 6 primarily function as load-bearing and rotating components. Eight cuboid columns A5 are provided in total. The lower surface of each column A5 is connected to the upper surface of the workbench 8 with screws. The columns A5 support the electric steel rollers 6, which in turn support the steel pipe 4. The four electric steel rollers 6 are arranged in parallel pairs, with the two rollers on the same side located on the same vertical plane. The workbench surface directly below the two electric steel rollers 6 on each side has a rectangular groove 13. The groove 13 is designed as a rectangle, and there are two rectangular grooves 13. The column B7 is designed as a cuboid, and there is one column B7. The lower end of the column B7 is installed on the workbench 8 by screws and is located at one end of the workbench 8. The upper end of the column B7 is provided with a circular through hole B14. The electric cylinder 1 is fixedly connected to the column B7 by bolts through the through hole B14 and through hole A10. The electric cylinder 1 is set horizontally. The steel pipe 4 to be derusted is supported by four electric steel rollers 6 and can rotate with the rotation of the electric steel rollers 6. The laser nozzle 2 can be inserted into the steel pipe 6 to be derusted under the drive of the electric cylinder 1. The support leg 9 is designed as a cuboid, and there are four support legs 9. The upper surface of the support leg 9 is connected to the lower surface of the workbench 8. The support leg 9 is used to support the entire device.
[0029] Furthermore, the laser host 12 is designed as a cube, the laser nozzle 2 is electrically connected to the laser host 12, and both the laser nozzle 2 and the electric steel roller 6 are controlled by the control system. The control system is a PLC control system, which is connected to the power supply. The laser host 12 is electrically connected to the control system, and the control system controls the device to perform operations. Example
[0030] According to the above Figures 1-6 As shown, a laser rust removal device for steel pipes is manufactured, wherein the electric cylinder 1 is a two-stage electric cylinder; the laser nozzle 2 is designed as a rectangular boss shape, and the laser nozzle 2 is connected to the electric cylinder 1 by threaded fasteners, and the laser beam emitted by the laser nozzle 2 is strip-shaped; the electric cylinder support 3 is designed as a trapezoid, and the electric cylinder support 3 is welded from a square tube, and the electric cylinder support 3 is connected to the electric cylinder 1 by threaded fasteners, and the electric cylinder support 3 is fixed to the worktable 8 by bolts; the inner diameter of the steel pipe 4 is greater than 300mm; the column A5 is designed as a cuboid, and the column A5... The column A5 is connected to the worktable 8 by screws, and a bearing is installed between the column A5 and the electric cylinder 1; the column B7 is designed as a cuboid, and the column B7 is installed on the worktable 8 by screws and is located at one end of the worktable 8; the diameter of the through hole A10 is 16 mm; the diameter of the through hole B14 is 16 mm; the width of the rectangular groove 13 is greater than the thickness of the electric steel roller 6; the PLC control system is a Siemens 1200 PLC control system; the laser host 12 is designed as a cube, and the laser nozzle 2 is electrically connected to the laser host 12.
[0031] The following example uses a single use.
[0032] The first step is to install the workbench.
[0033] The lower surface of column A5 is connected to the upper surface of workbench 8 by screws. Each electric steel roller 6 is placed between two columns A5 and supported by these two columns A5. The four electric steel rollers 6 are arranged in parallel pairs, and the two electric steel rollers 6 on the same side are located in the same vertical plane. The workbench surface directly below the two electric steel rollers 6 on each side is a rectangular groove 13. The lower end of column B7 is installed on workbench 8 by screws and is located at one end of workbench 8. The upper surface of support leg 9 is connected to the lower surface of workbench 8.
[0034] The second step is to install the laser equipment.
[0035] Electric cylinder 1 is fixedly connected to column B7 via through holes B14 and A10 through bolts. Electric cylinder 1 is horizontally set. Laser nozzle 2 is installed at the end of the output end of electric cylinder 1 with the emission angle facing downward. Laser nozzle 2 is connected to electric cylinder 1 by threaded fasteners. Laser nozzle 2 is electrically connected to laser host 12. The upper end of electric cylinder bracket 3 is connected to the middle of the outer wall of electric cylinder 1 by threaded fasteners. The lower end of electric cylinder bracket 3 is inserted into square hole 11.
[0036] The third step is to remove rust.
[0037] The steel pipe 4 to be derusted is supported by four electric steel rollers 6 and can rotate as the electric steel rollers 6 rotate. The laser nozzle 2 can be inserted into the steel pipe 6 under the drive of the electric cylinder 1. After the laser nozzle 2 passes through the entire steel pipe 4, the derusting is completed.
[0038] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the technical principles of the present utility model.
Claims
1. A laser rust removal device for steel pipes, comprising an electric cylinder, a laser nozzle, an electric cylinder support, a column A, an electric steel roller, a column B, a worktable, support legs, through holes A and B, a square hole, a laser main unit, a rectangular groove, and a control system, characterized in that: There is one electric cylinder with a circular through hole A at the tail. The laser nozzle is designed as a rectangular boss and is installed at the end of the output end of the electric cylinder with the emission angle facing downward. The laser nozzle and the electric cylinder are connected by threaded fasteners. The laser beam emitted by the laser nozzle is strip-shaped and parallel to the axis of the pipe to be derusted. The electric cylinder support is designed as a trapezoid and is installed. The upper end of the electric cylinder support is connected to the middle of the outer wall of the electric cylinder by threaded fasteners. The lower end of the electric cylinder support is inserted into a square hole. The square hole is designed as a square blind hole and is installed in two. The square hole is set on the upper surface of the worktable. The lower end of the electric cylinder support is fixed to the worktable by bolts. The legs are designed as cuboids and are installed in four. The upper surface of the legs is connected to the lower surface of the worktable. Furthermore, the worktable is designed as a cuboid with a trapezoidal boss at the top. Four electric steel rollers are installed, each positioned between and supported by two columns A. Columns A are also cuboids, with a total of eight columns A. The lower surfaces of columns A are connected to the upper surface of the worktable via screws. The four electric steel rollers are arranged in pairs, with the two rollers on the same side located on the same vertical plane. The worktable surface directly below the two rollers on each side has a rectangular recess. The groove is designed to be rectangular, with two rectangular grooves. The column B is designed to be cuboid, with one column B. The lower end of column B is mounted on the workbench with screws and is located at one end of the workbench. The upper end of column B has a circular through hole B. The electric cylinder is fixedly connected to column B through through hole B and through hole A via bolts. The electric cylinder is set horizontally. The steel pipe to be derusted is supported by four electric steel rollers and can rotate with the rotation of the electric steel rollers. The laser nozzle can be inserted into the interior of the steel pipe to be derusted under the drive of the electric cylinder. Furthermore, the laser host is designed as a cube, the laser nozzle is electrically connected to the laser host, and both the laser nozzle and the electric steel roller are controlled by the control system, which is a PLC control system. The control system is connected to the power supply, and the laser host is electrically connected to the control system.
2. The laser rust removal device for steel pipes according to claim 1, characterized in that: The inner diameter of the steel pipe is greater than 300 mm.
3. The laser rust removal device for steel pipes according to claim 1, characterized in that: The diameter of the through hole B is 16 mm, and the diameter of the through hole A is 16 mm.
4. The laser rust removal device for steel pipes according to claim 1, characterized in that: The electric cylinder bracket is made of square tubing welded together.
5. The laser rust removal device for steel pipes according to claim 1, characterized in that: The electric cylinder is a two-stage electric cylinder.
6. The laser rust removal device for steel pipes according to claim 1, characterized in that: A bearing is installed between the column A and the electric cylinder.
7. The laser rust removal device for steel pipes according to claim 1, characterized in that: The width of the rectangular groove is greater than the thickness of the electric steel roller.
8. The laser rust removal device for steel pipes according to claim 1, characterized in that: The PLC control system is a Siemens 1200 PLC control system.