An automatic rust removal device for the inner wall of steel pipes

Abstract

This invention provides an automatic rust removal device for the inner wall of steel pipes, comprising a feeding hopper, a first drive unit, a horizontal conveying device, a discharging device, a lifting device, a sorting device, a rust removal device, and a discharge hopper. The feeding hopper contains a feeding device, and the first drive unit is connected to the feeding device. The discharging device has a first discharging ramp and a first baffle. The lifting device includes a second drive unit and a lifter, which has a second discharging ramp and a second baffle. The second discharging ramp overlaps with the first discharging ramp in the feeding direction, and the second baffle is located at the lower end of the second discharging ramp. The sorting device includes a bracket, a translation drive unit, and a lifting drive unit. The rust removal device includes a rust removal clamp and a rust removal machine. By employing the coordinated use of the first drive unit, feeding device, horizontal conveying device, and sorting device, automatic feeding, rust removal, and unloading processes of steel pipes are achieved, saving labor costs and improving production efficiency.

Description

Technical Field

[0001] This invention relates to the field of steel pipe processing technology, specifically to an automatic rust removal device for the inner wall of steel pipes. Background Technology

[0002] Traditional steel pipe processing techniques include rust removal, which requires rust removal equipment and multiple workers for manual loading and unloading, resulting in high labor costs and low processing efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic rust removal device for the inner wall of steel pipes, which solves the problems of high labor costs and low processing efficiency caused by manual feeding and unloading in traditional rust removal equipment.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an automatic rust removal device for the inner wall of steel pipes, comprising:

[0005] The feeding hopper has a feeding device inside. The feeding device is used to support horizontally placed steel pipes and to transport the steel pipes horizontally to the next position in sequence. The steel pipes are perpendicular to the conveying direction of the feeding device.

[0006] The first drive unit is connected to the feeding device. The first drive unit is used to drive the feeding device to move so as to sequentially and horizontally transport the steel pipes in the feed hopper to the next position.

[0007] A horizontal conveying device is located at the end of the feeding device, and the horizontal conveying device and the feeding device have overlapping parts in the feeding direction to receive the steel pipes on the feeding device and transport the steel pipes to the next position in sequence.

[0008] The discharge device has a first discharge ramp and a first stopper. The higher end of the first discharge ramp overlaps with the horizontal conveying device in the feeding direction. The discharge device is used to receive the steel pipes conveyed by the horizontal conveying device and make the steel pipes automatically roll to the first stopper via the first discharge ramp. The first stopper is used to stop the steel pipes that automatically roll down from the first discharge ramp.

[0009] The lifting device includes a second drive unit and a lifting device. The lifting device has a second discharge ramp and a second stopper. The second discharge ramp and the first discharge ramp have an overlapping part in the feeding direction. The second stopper is located at the lower end of the second discharge ramp. The second drive unit is used to drive the lifting device to move up and down. The lifting device is used to push the steel pipe past the first stopper and then automatically roll it from the second discharge ramp to the second stopper. The second stopper is used to stop the steel pipe rolling down from the second discharge ramp.

[0010] The material distribution device includes a bracket, a translation drive unit, and a lifting drive unit. The translation drive unit is used to drive the bracket to translate, and the lifting drive unit is used to drive the bracket to lift. The bracket has a limiting groove for positioning steel pipes. The bracket is used to transport steel pipes from the second discharge ramp to the next position for rust removal, and to transport the processed steel pipes to the discharge bin.

[0011] Rust removal device, including rust removal clamp and rust removal machine. The rust removal clamp is used to automatically clamp the steel pipe conveyed by the bracket and automatically release it after the steel pipe is rusted. The rust removal machine is used to remove rust from the inner wall of the steel pipe in the rust removal clamp.

[0012] The discharge hopper is used to hold the processed steel pipes. It has a third discharge ramp, which is used to receive the processed steel pipes conveyed by the bracket and to allow the processed steel pipes to roll automatically into the discharge hopper.

[0013] Optionally, the rust removal machine includes a polisher, a rotary drive, and a first linear drive. One end of the polisher is connected to the rotary drive and mounted on the first linear drive. The first linear drive drives the polisher to move inside the steel pipe, and the rotary drive drives the polisher to rotate to polish and remove rust from the inner wall of the steel pipe.

[0014] Optionally, it also includes a painting device for painting the inner wall of the rust-removed steel pipe. The painting device includes a painting machine and a painting fixture. The bracket is also used to transport the rust-removed steel pipe to the painting fixture. The painting fixture is used to clamp the steel pipe transported by the bracket for painting by the painting machine, and automatically releases after the steel pipe is painted.

[0015] Optionally, the painting device has two sets, namely a first painting device and a second painting device, which are located at the front and rear positions on opposite sides of the feeding direction of the bracket, respectively. The first painting device is used to extend from one end of the steel pipe into the steel pipe for painting, and the second painting device is used to extend from the other end of the steel pipe into the steel pipe for painting. The sum of the painting distance of the first painting device in the steel pipe and the painting distance of the second painting device in the steel pipe is greater than or equal to the length of the steel pipe.

[0016] Optionally, the paint spraying machine includes a paint spray gun, a gun barrel, and a second linear drive. The paint spray gun is connected to the gun barrel and mounted on the second linear drive. The second linear drive is used to drive the paint spray gun and the gun barrel to move so that the gun barrel enters the steel pipe to spray paint on the inner wall of the steel pipe.

[0017] Optionally, it also includes a coding device for coding the surface of the steel pipe.

[0018] Optionally, the coding device includes a coding machine, a coding gun, and a moving unit. The coding machine is connected to the coding gun, and the coding gun is mounted on the moving unit, which is used to drive the coding gun to a designated position.

[0019] Optionally, the moving unit includes a horizontal transverse guide rail, a transverse drive cylinder, a second mounting plate, and a horizontal longitudinal guide rail. One end of the second mounting plate is slidably mounted on the horizontal transverse guide rail. The second mounting plate is connected to the transverse drive cylinder, which is used to drive the inkjet gun to slide on the horizontal transverse guide rail. The horizontal longitudinal guide rail is mounted on the second mounting plate, and the inkjet gun is slidably mounted on the horizontal longitudinal guide rail.

[0020] Optionally, a number of positioning recesses are distributed on the bracket along the steel pipe conveying direction. Each group of positioning recesses includes at least two adjacent positioning slots for simultaneously conveying a corresponding number of steel pipes. The conveying distance between each pair of adjacent devices within the conveying range of the bracket corresponds to a group of positioning recesses for conveying steel pipes.

[0021] Optionally, it also includes a control system electrically connected to the drive components in the rust removal equipment.

[0022] The technical effects of this invention are as follows:

[0023] 1. In the rust removal equipment of the present invention, by employing a first drive unit, a feeding device, a horizontal conveying device, a material distribution device and other devices in combination, the automatic feeding, rust removal and unloading processes of steel pipes are realized, saving labor costs and improving production efficiency.

[0024] 2. In the rust removal equipment of the present invention, a painting device is used to paint the rust-removed steel pipe, which integrates the functions of automatic rust removal and automatic painting, reduces equipment, and avoids the waste of labor and time caused by the conversion of steel pipes.

[0025] 3. In the rust removal equipment of the present invention, by employing two sets of painting devices, which extend into the interior of the steel pipe from both the left and right ends respectively, the painting of the steel pipe is fully covered, thereby improving the processing quality of the steel pipe.

[0026] 4. In the rust removal equipment of the present invention, by adopting a coding device, multiple processing steps such as rust removal, painting and coding of steel pipes are realized on one device, which increases the function of the rust removal equipment, saves labor and time, and improves processing efficiency.

[0027] 5. In the rust removal equipment of the present invention, by setting multiple sets of positioning recesses on the bracket, and making the conveying range of the bracket cover the feeding, rust removal, painting and unloading processes, continuous processing of steel pipes is realized, the downtime of the processing process is reduced, and the production efficiency is improved.

[0028] 6. In the rust removal equipment of the present invention, by setting two sets of polishers in the rust removal device and two sets of spray guns in the painting device, the function of processing two steel pipes at the same time is realized, thereby improving the processing efficiency. Attached Figure Description

[0029] Figure 1 This is a perspective view of the rust removal equipment in the embodiment;

[0030] Figure 2 This is a first-view perspective view of the feed hopper and horizontal conveyor in the embodiment.

[0031] Figure 3 This is a second-view perspective view of the feed hopper and horizontal conveyor in the embodiment;

[0032] Figure 4 This is a perspective view of the material dispensing device in the embodiment;

[0033] Figure 5 This is a perspective view of the first painting device and the coding device in the embodiment.

[0034] Reference numerals: 1. Feed hopper; 11. Feeding device; 111. Feeding belt; 12. First drive unit; 121. Winding roller; 122. Driven roller; 123. Feeding motor; 124. First synchronous transmission shaft; 2. Horizontal conveyor device; 21. Horizontal conveyor belt; 22. Conveyor motor; 23. Sprocket assembly; 231. Driving wheel; 232. Driven wheel; 24. Second synchronous transmission shaft; 3. Discharge device; 31. Discharge side plate; 311. First discharge ramp; 32. First stopper; 321. 33. First rack; 34. Horizontal moving mechanism; 35. Third synchronous transmission shaft; 36. Rotating handwheel; 37. First gear; 48. Lifting device; 41. Second drive unit; 411. Lifting cylinder; 412. Fourth synchronous transmission shaft; 413. Second gear; 42. First mounting plate; 421. Inclined rod; 422. Second discharge ramp; 423. Second rack; 43. Second stopper; 5. Distributing device; 51. Bracket; 511. Positioning groove; 52. Translation drive unit; 521. 522. Horizontal moving plate; 53. Lifting drive unit; 531. Lifting drive cylinder; 532. Vertical moving plate; 54. Synchronous transmission unit; 541. Fifth synchronous transmission shaft; 542. Third gear; 543. Third rack; 6. Rust removal device; 61. Rust removal fixture; 611. Fixed clamp; 612. Movable clamp; 613. Fixture cylinder; 614. Limiting groove; 62. Rust removal machine; 621. Polisher; 622. Rotary drive; 623. First linear drive; 7. Discharge hopper; 71. Third discharge ramp; 8. Mounting frame; 81. First painting device; 811. Painting machine; 812. First painting fixture; 813. Painting gun; 814. Gun barrel; 815. Second linear drive; 82. Marking device; 821. Marking machine; 822. Marking gun; 823. Horizontal guide rail; 824. Horizontal drive cylinder; 825. Second mounting plate; 826. Horizontal longitudinal guide rail; 83. Auxiliary support plate; 84. Second painting device; 841. Second painting fixture. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example: Figures 1-5 As shown, this embodiment provides an automatic rust removal device for the inner wall of steel pipes, including a feeding hopper 1, a first drive unit 12, a horizontal conveying device 2, a discharge device 3, a lifting device 4, a material distribution device 5, a rust removal device 6, and a discharge hopper 7.

[0037] The feeding hopper 1 contains a feeding device 11, which supports horizontally placed steel pipes and sequentially transports them horizontally to the next position. The steel pipes are perpendicular to the conveying direction of the feeding device 11. A first drive unit 12 is connected to the feeding device 11 and drives the feeding device 11 to move, sequentially transporting the steel pipes in the feeding hopper 1 horizontally to the next position. A horizontal conveying device 2 is located at the end of the conveying process of the feeding device 11, and the horizontal conveying device 2 overlaps with the feeding device 11 in the feeding direction to receive the steel pipes on the feeding device 11 and sequentially transport them to the next position. A discharge device 3 is provided. The device includes a first discharge ramp 311 and a first baffle 32. The higher end of the first discharge ramp 311 overlaps with the horizontal conveyor 2 in the feeding direction. The discharge device 3 receives the steel pipes conveyed by the horizontal conveyor 2 and allows them to automatically roll sequentially to the first baffle 32 via the first discharge ramp 311. The first baffle 32 stops the steel pipes automatically rolling down from the first discharge ramp 311. The lifting device 4 includes a second drive unit 41 and a lifter. The lifter has a second discharge ramp 422 and a second baffle 43. The second discharge ramp 422 overlaps with the first discharge ramp 311 in the feeding direction. In the combined section, the second stopper 43 is located at the lower end of the second discharge ramp 422. The second drive unit 41 is used to drive the lifting device to move up and down. The lifting device is used to push the steel pipe past the first stopper 32 and then automatically roll it from the second discharge ramp 422 to the second stopper 43. The second stopper 43 is used to stop the steel pipe rolling down from the second discharge ramp 422. The material distribution device 5 includes a bracket 51, a translation drive unit 52, and a lifting drive unit 53. The translation drive unit 52 is used to drive the bracket 51 to translate, and the lifting drive unit 53 is used to drive the bracket 51 to lift. The bracket 51 has a positioning groove 511 for positioning the steel pipe. The bracket 51 is used for positioning the steel pipe. The steel pipe at the second discharge ramp 422 is transported to the next position for rust removal, and the processed steel pipe is also transported to the discharge bin 7. The rust removal device 6 includes a rust removal clamp 61 and a rust removal machine 62. The rust removal clamp 61 is used to automatically clamp the steel pipe transported by the bracket 51 and automatically release it after the steel pipe is rusted. The rust removal machine 62 is used to remove rust from the inner wall of the steel pipe in the rust removal clamp 61. The discharge bin 7 is used to hold the processed steel pipe and has a third discharge ramp 71. The third discharge ramp 71 is used to receive the processed steel pipe transported by the bracket 51 and to allow the processed steel pipe to automatically roll into the discharge bin 7.

[0038] With the above configuration, the first drive unit 12 drives the feeding device 11 to sequentially lift the steel pipes in the feeding hopper 1 out of the feeding hopper 1 and sequentially transport the steel pipes to the horizontal conveying device 2. The steel pipes are then transported to the discharge device 3 via the horizontal conveying device 2. The steel pipes automatically roll down from the first discharge ramp 311 to the first baffle 32 and are stopped by the first baffle 32. Then, the second drive unit 41 drives the lifting device to lift the second discharge ramp 422, which lifts a certain number of steel pipes from the first baffle 32. The number of steel pipes lifted depends on the overlap length between the second discharge ramp 422 and the first discharge ramp 311 and can be adjusted. When the steel pipes are higher than the top of the first baffle 32, under their own gravity, the steel pipes roll down from the first discharge ramp 311 to the second baffle 43 and are stopped by the second baffle 32. When the stopper 43 stops the steel pipe, the bracket 51, controlled by the translation drive unit 52 and the lifting drive unit 53, moves to below the second discharge ramp 422. The bracket 51 then rises, lifting the steel pipe past the second stopper 43 and into the limiting groove 614 of the rust removal clamp 61. The rust removal clamp 61 automatically clamps the steel pipe, and the rust removal machine 62 removes rust from the inner wall of the steel pipe. After rust removal is complete, the rust removal clamp 61 automatically opens to release the clamping action on the steel pipe. The translation drive unit 52 and the lifting drive unit 53 then drive the bracket 51 to transport the rust-removed steel pipe to the third discharge ramp 71 of the discharge bin 7. The bracket 51 then moves downwards, causing the steel pipe to automatically roll down the third discharge ramp 71 into the discharge bin 7, completing the automatic feeding, automatic rust removal, and automatic discharge process of the steel pipe. This saves labor and improves processing efficiency.

[0039] The automatic rust removal equipment for the inner wall of steel pipes in this embodiment also includes a mounting frame 8, and a feeding device 11, a horizontal conveying device 2, a discharging device 3, a lifting device 4, a material distribution device 5, and a rust removal device 6 are all mounted on the mounting frame 8.

[0040] Specifically, in the automatic rust removal equipment for the inner wall of steel pipes in this embodiment, the feeding device 11 includes several parallel feeding belts 111 distributed in the feeding bin 1, and the steel pipes in the feeding bin 1 are placed on the feeding belts 111. The first drive unit 12 includes a winding roller 121, a driven roller 122, a feeding motor 123, and a first synchronous transmission shaft 124. One end of each feeding belt 111 is wound around a corresponding winding roller 121, and the other end of the feeding belt 111 is wound around a corresponding driven roller 122. Several winding rollers 121 are coaxially fixed on the first synchronous transmission shaft 124. The first synchronous transmission shaft 124 is rotatably mounted on the mounting frame 8. The feeding motor 123 is fixedly mounted on the mounting frame 8. The feeding motor 123 is connected to the first synchronous transmission shaft 124 through a reducer. The feeding motor 123 drives the first synchronous transmission shaft 124 to rotate, thereby driving several feeding belts 111 to move synchronously, ensuring that the length direction of the steel pipe is perpendicular to the conveying direction of the steel pipe, thereby conveying the steel pipe in the feeding bin 1 from the feeding bin 1 to the next position in sequence.

[0041] In the automatic rust removal equipment for the inner wall of steel pipes in this embodiment, the horizontal conveying device 2 includes a horizontal conveyor belt 21, a conveyor motor 22, a sprocket assembly 23, and a second synchronous transmission shaft 24. The horizontal conveyor belt 21 has several corresponding to the feeding belts 111. The feeding belts 111 and the horizontal conveyor belt 21 have overlapping portions in the feeding direction. The overlapping portions of the feeding belts 111 and the horizontal conveyor belt 21 have the same height, so that the steel pipe at the feeding end of the feeding belts 111 moves onto the horizontal conveyor belt 21 and is transported to the next position by the horizontal conveyor belt 21. The drive wheels 231 of several horizontal conveyor belts 21 are coaxially fixedly mounted on the second synchronous drive shaft 24. The second synchronous drive shaft 24 is rotatably mounted on the mounting frame 8. The conveyor motor 22 is fixedly mounted on the mounting frame 8 and is equipped with a reducer. The sprocket assembly 23 includes a drive wheel 231, a driven wheel 232, and a chain. The drive wheel 231 is connected to the reducer of the conveyor motor 22. The driven wheel 232 is coaxially fixedly mounted on the second synchronous drive shaft 24. The drive wheel 231 and the driven wheel 232 are connected by chain drive. The conveyor motor 22 drives the second synchronous drive shaft 24 to rotate through the sprocket assembly 23, thereby driving several horizontal conveyor belts 21 to move synchronously, thus transporting the steel pipe to the next position.

[0042] In the automatic rust removal equipment for the inner wall of steel pipes in this embodiment, there are several first discharge ramps 311 and first baffles 32, each corresponding to a specific one. The first discharge ramps 311 correspond one-to-one with the horizontal conveyor belts 21. Specifically, the mounting frame 8 is provided with several discharge side plates 31 that correspond one-to-one with the horizontal conveyor belts 21. The discharge side plates 31 are located on one side of the corresponding horizontal conveyor belts 21, and the upper end of the discharge side plates 31 forms the first discharge ramps 311. The position of the first baffle 32 in the feeding direction is adjustable. Specifically, several first baffles 32 are driven by a horizontal moving mechanism 33 to move synchronously in the feeding direction. The horizontal moving mechanism 33 includes a third synchronous transmission shaft 331 and a rotating handwheel 332. The third synchronous transmission shaft 331 is rotatably mounted on the mounting frame 8. A first rack 321 is horizontally fixed on the first baffle 32. Several first gears 333 are fixed on the third synchronous transmission shaft 331. The first gears 333 mesh with the first rack 321 one by one. The rotating handwheel 332 is connected to the third synchronous transmission shaft 331 through a reducer. The reducer that cooperates with the rotating handwheel 332 is fixedly mounted on the mounting frame 8. Rotating the rotating handwheel 332 drives the third synchronous transmission shaft 331 to rotate through the cooperating reducer, thereby driving several first baffles 32 to move synchronously in the feeding direction. This makes it easy to adjust the position of the first baffle 32 on the first discharge ramp 311, thereby adjusting the number of steel pipes supported by the second discharge ramp 422. Specifically, the first baffle 32 has a plate-like structure.

[0043] In the automatic rust removal equipment for the inner wall of steel pipes in this embodiment, the second drive unit 41 includes a lifting cylinder 411 and a fourth synchronous transmission shaft 412. The lifting unit also includes a first mounting plate 42. An inclined rod 421 is fixedly installed on the first mounting plate 42. A second discharge ramp 422 is formed on the upper surface of the inclined rod 421. A second baffle 43 is fixedly installed at the lower end of the inclined rod 421. Specifically, the second baffle 43 is a wedge-shaped block. The first mounting plate 42 is movable up and down on the mounting frame 8. There are several first mounting plates 42, and each of the several first mounting plates 42 corresponds to a first discharge ramp 311. The cylinder shaft of the lifting cylinder 411 is fixedly connected to one of the first mounting plates 42. A second rack 423 is fixedly installed on the first mounting plate 42. Several second gears 413 are fixedly installed on the fourth synchronous transmission shaft 412. The second gears 413 and the second rack 423 mesh with each other. The lifting cylinder 411 drives the cylinder shaft to extend and retract, thereby moving the first mounting plate 42 connected to it up and down. The several first mounting plates 42 move up and down synchronously through the cooperation of the fourth synchronous transmission shaft 412, the second gears 413 and the second rack 423, thereby realizing the conveying of the steel pipe to the second stopper 43.

[0044] In the automatic rust removal equipment for the inner wall of steel pipes in this embodiment, the bracket 51 includes a support plate, and a positioning groove 511 for positioning steel pipes is opened on the upper part of the support plate. The lifting drive unit 53 includes a lifting drive cylinder 531 and a vertical moving plate 532. The vertical moving plate 532 is vertically slidably mounted on the mounting frame 8. The cylinder shaft of the lifting drive cylinder 531 is fixedly connected to the vertical moving plate 532. The lifting drive cylinder 531 drives the vertical moving plate 532 to move up and down. The translation drive unit 52 includes a translation drive cylinder 521 and a horizontal moving plate 522. The translation drive cylinder 521 is fixedly mounted on the horizontal moving plate 522. The horizontal moving plate 522 is horizontally slidably mounted on the vertical moving plate 532. The support plate is fixedly mounted on the horizontal moving plate 522. The cylinder shaft of the translation drive cylinder 521 is fixedly connected to the horizontal moving plate 522. The translation drive cylinder 521 is used to drive the horizontal moving plate 522 and the support plate to move horizontally.

[0045] In the automatic rust removal equipment for the inner wall of steel pipe in this embodiment, the rust removal machine 62 includes a polisher 621, a rotary driver 622 and a first linear driver 623. One end of the polisher 621 is connected to the rotary driver 622 and then mounted on the first linear driver 623. The first linear driver 623 drives the polisher 621 to move inside the steel pipe, and the rotary driver 622 drives the polisher 621 to rotate to polish and remove rust from the inner wall of the steel pipe.

[0046] Specifically, the polisher 621 includes a polishing rod with a polishing brush fixedly mounted on it, the rotary driver 622 includes a rotary motor and a gearbox, and the first linear driver 623 can be a linear motor.

[0047] The automatic rust removal equipment for the inner wall of steel pipes in this embodiment also includes a painting device. The painting device is used to paint the inner wall of the rust-removed steel pipe. The painting device includes a painting machine 811 and a painting fixture. A bracket 51 is used to transport the rust-removed steel pipe to the painting fixture. The painting fixture clamps the steel pipe transported by the bracket 51 for painting by the painting machine 811 and automatically releases after the painting is completed. This realizes the painting process for rust-removed steel pipes, increases the equipment's functionality, integrates the painting and rust removal processes into one machine, saves transportation time, reduces the number of devices and space occupied, and improves processing efficiency.

[0048] In this embodiment of the automatic rust removal equipment for the inner wall of steel pipes, the painting device has two sets: a first painting device 81 and a second painting device 84, located at opposite front and rear positions on both sides of the feeding direction of the bracket 51. The first painting device 81 extends from one end of the steel pipe into the pipe for painting, and the second painting device 84 extends from the other end of the steel pipe into the pipe for painting. The sum of the painting distance of the first painting device 81 and the painting distance of the second painting device 84 inside the steel pipe is greater than or equal to the length of the steel pipe. This arrangement enables one-time and comprehensive painting of the steel pipe, improving the painting effect and processing efficiency. Specifically, the first spray painting device 81 has a first spray painting clamp 812, and the second spray painting device 84 has a second spray painting clamp 841. The first spray painting clamp 812 and the second spray painting clamp 841 are located on opposite sides of the bracket 51, and both the first spray painting clamp 812 and the second spray painting clamp 841 have a limiting groove 614 for limiting the steel pipe.

[0049] In this embodiment of the automatic rust removal equipment for the inner wall of steel pipes, the paint spraying machine 811 includes a paint spray gun 813, a gun barrel 814, and a second linear driver 815. The paint spray gun 813 is connected to the gun barrel 814 and then mounted on the second linear driver 815. The second linear driver 815 is used to drive the paint spray gun 813 and the gun barrel 814 to move so that the gun barrel 814 enters the steel pipe to spray paint on the inner wall of the steel pipe. Specifically, the second linear driver 815 can be a linear motor.

[0050] The automatic rust removal equipment for the inner wall of steel pipes in this embodiment also includes a coding device 82, which is used to spray code onto the surface of the steel pipe. This realizes the rust removal, painting, and coding processes for steel pipes on a single device, offering diverse functions, reducing the number of devices required, and improving processing efficiency.

[0051] In this embodiment of the automatic rust removal equipment for the inner wall of steel pipes, the coding device 82 includes a coding machine 821, a coding gun 822, and a moving unit. The coding machine 821 is connected to the coding gun 822, and the coding gun 822 is mounted on the moving unit. The moving unit is used to drive the coding gun 822 to move to a designated position. Through the above arrangement, the moving unit controls the position of the coding gun 822, which is convenient for steel pipes of different sizes and for coding at different positions, thus improving adaptability.

[0052] In this embodiment of the automatic rust removal equipment for the inner wall of steel pipes, the moving unit includes a horizontal transverse guide rail 823, a transverse drive cylinder 824, a second mounting plate 825, and a horizontal longitudinal guide rail 826. One end of the second mounting plate 825 is slidably mounted on the horizontal transverse guide rail 823. The second mounting plate 825 is connected to the transverse drive cylinder 824, which drives the cylinder to slide on the horizontal transverse guide rail 823. The horizontal longitudinal guide rail 826 is mounted on the second mounting plate 825, and the inkjet gun 822 is slidably mounted on the horizontal longitudinal guide rail 826. The structure is simple, and the horizontal longitudinal guide rail 826 can be replaced with a linear motor to achieve automatic position adjustment of the inkjet gun 822.

[0053] In the automatic rust removal equipment for the inner wall of steel pipes in this embodiment, a number of positioning recesses are distributed on the bracket 51 along the steel pipe conveying direction. Each group of positioning recesses includes at least two adjacent positioning grooves 511 for conveying a corresponding number of steel pipes at the same time. The conveying distance of each pair of adjacent devices within the conveying range of the bracket 51 corresponds to a group of positioning recesses for conveying steel pipes.

[0054] Specifically, the rust removal machine 62 has two polishers 621, and the gearbox has two output shafts, which are connected one-to-one with the two polishers 621. This allows a single rotary motor to drive the two polishers 621 to rotate, thus simultaneously removing rust from two steel pipes. Two paint spray guns 813 are provided to simultaneously paint the two steel pipes. The coding gun 822 can move along the feeding direction, allowing it to separately code the two steel pipes being transported.

[0055] Each set of positioning recesses in this embodiment includes two adjacent positioning grooves 511. The positioning grooves 511 are V-shaped grooves, so that when the bracket 51 lifts the two steel pipes on the second discharge ramp 422, the two adjacent steel pipes can be automatically separated and embedded into the two positioning grooves 511.

[0056] This embodiment has five sets of positioning recesses, with the same spacing between adjacent sets. Along the feeding direction, these recesses are sequentially designated as the first, second, third, fourth, and fifth recesses. The rust-removing fixture 61 and the painting fixture each have two sets of limiting grooves 614, each set having two adjacent limiting grooves 614 for simultaneously limiting two steel pipes. Two steel pipes processed simultaneously constitute one set of steel pipes.

[0057] The specific conveying method of bracket 51 is as follows:

[0058] First, the first recess of the bracket 51 moves to the second discharge ramp 422 to lift the first group of steel pipes and move the two steel pipes into the first set of limiting grooves 614 of the rust removal fixture 61, and then remove rust. During this process, the first recess of the bracket 51 moves again to the second discharge ramp 422 to wait to lift the second group of steel pipes. The first group of steel pipes is located directly above the second recess.

[0059] Second, after the rust removal is completed, the bracket 51 moves the first set of rust-removed steel pipes into the second set of limiting grooves 614 of the rust removal fixture 61 through the second recess. At the same time, the bracket 51 moves the second set of steel pipes into the first set of limiting grooves 614 of the rust removal fixture 61 through the first recess for rust removal. During the rust removal process, the bracket 51 moves to the second discharge ramp 422 to wait to lift the second set of steel pipes. At this time, the first set of steel pipes is located directly above the third recess, the second set of steel pipes is located directly above the second recess, and the third set of steel pipes is located directly above the first recess.

[0060] Third, after the second group of steel pipes has been derusted, the bracket 51 moves the third group of steel pipes to the first limiting groove 614 of the derusting fixture 61 for derusting. Simultaneously, the first group of steel pipes is moved to the limiting groove 614 of the first painting fixture 812 for painting, and the second group of steel pipes is moved to the second limiting groove 614 of the derusting fixture 61 to wait. During the painting and derusting process, the first recess of the bracket 51 moves below the second discharge ramp 422 to wait to lift the fourth group of steel pipes. At this time, the first group of steel pipes is directly above the fourth recess, the second group of steel pipes is directly above the third recess, and the third group of steel pipes is directly above the second recess.

[0061] Fourth, after painting and rust removal are completed, bracket 51 moves the fourth group of steel pipes to the first limiting groove 614 of the rust removal fixture 61 for rust removal. At the same time, bracket 51 moves the first group of steel pipes to the limiting groove 614 of the second painting fixture 841 for painting and marking. During the rust removal, painting and marking process, bracket 51 moves to the bottom of the second discharge ramp 422 to wait to lift the fifth group of steel pipes. At this time, the first group of steel pipes is located directly above the fifth recess, and the other groups of steel pipes are respectively located directly above the other group positioning recesses.

[0062] Fifth, after the rust removal, painting and coding processes are completed, the bracket 51 drags the fifth set of steel pipes to the first set of limiting grooves 614 of the rust removal fixture 61 for rust removal. At the same time, the bracket 51 moves the first set of steel pipes to the third discharge ramp 71 through the fifth recess. The first set of steel pipes automatically rolls into the discharge bin 7 through the third discharge ramp 71.

[0063] By following this method, continuous processing of steel pipes can be achieved.

[0064] In the automatic rust removal equipment for the inner wall of steel pipes in this embodiment, such as Figure 5As shown, both the rust removal fixture 61 and the painting fixture include a fixed clamp 611, a movable clamp 612, and a fixture cylinder 613. The fixture cylinder 613 drives the movable clamp 612 to move closer to and further away from the fixed clamp 611 to clamp and release the steel pipe. When the fixture is in the open state, there is a gap between the fixed clamp 611 and the movable clamp 612 to allow the steel pipe to enter along the feeding direction of the bracket 51.

[0065] In this embodiment of the automatic rust removal equipment for the inner wall of steel pipes, the brackets 51 have two parallel sets, located at both ends of the steel pipe, thereby improving the stability of the conveyed steel pipe. The first set of brackets 51 is equipped with a lifting drive unit 53 and a translation drive unit 52. Compared with the first set of brackets 51, the second set of brackets 51 reduces the lifting drive cylinder 531 and instead uses a synchronous transmission unit 54 to realize the synchronous lifting of the two sets of brackets 51. The synchronous transmission unit 54 includes a fifth synchronous transmission shaft 541, which is rotatably mounted on the mounting frame 8. Each vertical moving plate 532 corresponding to 51 is provided with a third rack 543. Two third gears 542 are coaxially fixed on the fifth synchronous transmission shaft 541. The third gears 542 and the third racks 543 mesh one-to-one. When the lifting drive cylinder 531 drives the vertical moving plate 532 corresponding to the first set of brackets 51 to rise and fall, the cooperation of the fifth synchronous transmission shaft 541, the third gears 542 and the third racks 543 enables the vertical moving plate 532 corresponding to the second set of brackets 51 to rise and fall synchronously, thereby realizing the synchronous rise and fall of the two sets of brackets 51.

[0066] In the automatic rust removal equipment for the inner wall of steel pipes in this embodiment, a number of auxiliary support plates 83 are distributed on the mounting frame 8 between the two sets of support brackets 51. The auxiliary support plates 83 have a number of recesses, each set of recesses including two adjacent positioning grooves 511. The number of recesses are aligned one by one with a number of limiting grooves 614 on the fixture, which are used to assist in positioning the steel pipe during processing and improve the placement stability of the steel pipe.

[0067] The automatic rust removal equipment for the inner wall of steel pipes in this embodiment also includes a control system electrically connected to the drive components in the rust removal equipment, thereby automating the steel pipe processing.

[0068] The above description only illustrates the preferred embodiments of the present invention. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention, and all such changes should be included within the protection scope of the present invention.

Claims

1. A steel pipe inner wall automatic rust removal apparatus characterized by, The utility model relates to a steel pipe processing system, which comprises: a feeding bin with a feeding device inside, the feeding device being used to support steel pipes placed horizontally and to sequentially horizontally transport the steel pipes to the next position, the transporting direction of the feeding device being perpendicular to the steel pipes; a first driving unit connected with the feeding device, the first driving unit being used to drive the feeding device to move and sequentially horizontally transport the steel pipes in the feeding bin to the next position; a horizontal conveying device located at the end of the feeding device in the transporting direction and having an overlapping part with the feeding device to receive the steel pipes on the feeding device and sequentially transport the steel pipes to the next position; a discharging device having a first discharging slope and a first stopper, the high end of the first discharging slope having an overlapping part with the horizontal conveying device in the transporting direction, the discharging device being used to receive the steel pipes transported by the horizontal conveying device and make the steel pipes automatically roll down the first discharging slope to the first stopper, the first stopper being used to stop the steel pipes automatically rolling down from the first discharging slope; a lifting device comprising a second driving unit and a lifter, the lifter having a second discharging slope and a second stopper, the second discharging slope having an overlapping part with the first discharging slope in the transporting direction, the second stopper being located at the low end of the second discharging slope, the second driving unit being used to drive the lifter to move up and down, the lifter being used to push the steel pipes to automatically roll down the second discharging slope to the second stopper after passing the first stopper, the second stopper being used to stop the steel pipes rolling down from the second discharging slope; a distributing device comprising a carrier, a horizontal driving unit and a vertical driving unit, the horizontal driving unit being used to drive the carrier to move horizontally, the vertical driving unit being used to drive the carrier to move vertically; the carrier having limiting grooves for positioning the steel pipes, the carrier being used to transport the steel pipes at the second discharging slope to the next position for rust removal and to transport the processed steel pipes to a discharging bin, the carrier having a plurality of groups of positioning recesses along the transporting direction of the steel pipes, each group of the positioning recesses comprising at least two adjacent limiting grooves for simultaneously transporting a corresponding number of steel pipes, each adjacent two devices in the transporting range of the carrier corresponding to a group of the positioning recesses for transporting the steel pipes; a rust removal device comprising a rust removal clamp and a rust removal machine, the rust removal clamp being used to automatically clamp the steel pipes transported by the carrier and automatically release the steel pipes after the rust removal is completed, the rust removal machine being used to remove the rust on the inner wall of the steel pipes in the rust removal clamp, the rust removal machine comprising a polisher, a rotary driver and a first linear driver, the polisher being connected with the rotary driver and installed on the first linear driver, the first linear driver driving the polisher to move in the steel pipes, and the rotary driver driving the polisher to rotate to simultaneously polish the inner wall of the steel pipes in the rust removal clamp; a paint spraying device being used to spray paint on the inner wall of the steel pipes after the rust removal, the paint spraying device comprising a paint spraying machine and a paint spraying clamp, the carrier being further used to transport the steel pipes after the rust removal to the paint spraying clamp, the paint spraying clamp being used to clamp the steel pipes transported by the carrier for the paint spraying machine to spray paint and automatically release the steel pipes after the paint spraying is completed; a code spraying device being used to spray codes on the surface of the steel pipes. The discharge bin is used for containing the finished steel pipe, and has a third discharge slope used for receiving the finished steel pipe conveyed by the bracket and automatically rolling the finished steel pipe into the discharge bin.

2. The automatic inner wall rust removal device for steel pipe according to claim 1, characterized in that, The paint spraying device has two groups, i.e., a first paint spraying device (81) and a second paint spraying device (84), which are respectively located at front and rear positions on opposite sides of the feeding direction of the bracket (51), the first paint spraying device (81) is used for spraying paint from one end of the steel pipe to the inside of the steel pipe, the second paint spraying device (84) is used for spraying paint from the other end of the steel pipe to the inside of the steel pipe, and the sum of the paint spraying distances of the first paint spraying device (81) and the second paint spraying device (84) in the steel pipe is greater than or equal to the length of the steel pipe.

3. The automatic inner wall rust removal device for steel pipe according to claim 1, characterized in that, The paint spraying machine (811) comprises a paint spraying gun (813), a barrel (814) and a second linear driver (815), the paint spraying gun (813) is connected with the barrel (814) and is installed on the second linear driver (815), and the second linear driver (815) is used for driving the paint spraying gun (813) and the barrel (814) to move so that the barrel (814) enters the steel pipe to spray paint on the inner wall of the steel pipe.

4. The automatic inner wall rust removal device for steel pipe according to claim 1, characterized in that, The code spraying device (82) comprises a code spraying machine (821), a code spraying gun (822) and a moving unit, the code spraying machine (821) is connected with the code spraying gun (822), the code spraying gun (822) is installed on the moving unit, and the moving unit is used for driving the code spraying gun (822) to move to a specified position.

5. The automatic inner wall rust removal device for steel pipe according to claim 4, characterized in that, The moving unit comprises a horizontal transverse guide rail (823), a transverse driving cylinder (824), a second mounting plate (825) and a horizontal longitudinal guide rail (826), one end of the second mounting plate (825) is slidably arranged on the horizontal transverse guide rail (823), the second mounting plate (825) is connected with the transverse driving cylinder (824), the transverse driving cylinder (824) is used for driving the second mounting plate (825) to slide on the horizontal transverse guide rail (823), the horizontal longitudinal guide rail (826) is arranged on the second mounting plate (825), and the code spraying gun (822) is slidably arranged on the horizontal longitudinal guide rail (826).

6. The automatic inner wall rust removal device for steel pipe according to claim 1, characterized in that, The control system is electrically connected with the driving component of the rust removal device.

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