A continuous casting machine slab surface defect repairing device

Abstract

This utility model discloses a device for repairing surface defects of billets in a continuous casting machine. Conveying support frames are fixedly connected to the upper left and right sides of the base. Conveying rollers are rotatably connected to the lower left and right sides of the inner side of the conveying support frames. A lifting frame is slidably connected to the upper end of the conveying support frames. A lifting pressure roller is rotatably connected to the inner side of the lower frame of the lifting frame. This utility model drives the adjusting screw to rotate via a first stepper motor, which in turn drives the lifting frame to move up and down, and the lifting pressure roller presses down on the billet for limiting. Driven by a second stepper motor, a bidirectional screw rotates, which moves the limiting plate to the front and rear sides of the billet. Through the action of the conveying rollers, it can connect to the continuous casting machine production line, enabling the positioning and conveying of billets according to different billet models, thus improving the efficiency of repairing surface defects in the billets.

Description

Technical Field

[0001] This utility model relates to the field of continuous casting machine billet repair technology, specifically a device for repairing surface defects of continuous casting machine billets. Background Technology

[0002] During continuous casting, after the billet is pulled out of the crystallizer, it is easily affected by factors such as uneven cooling rate, fluctuation of molten steel composition, and extrusion by roller conveyor, resulting in various defects on its surface. Common defects include transverse cracks, longitudinal cracks, surface pits, and oxide scale adhesion. If these surface defects are not repaired in time, they will directly affect the product quality of subsequent rolling processes, leading to a decrease in yield and even production accidents such as billet breakage during rolling, increasing the company's production costs.

[0003] Existing continuous casting machine billet surface defect repair equipment suffers from poor integration with the continuous casting production line, making continuous billet transport and synchronous repair impossible. Billets must be transferred from the production line to the repair area, disrupting production continuity and hindering rapid positioning and adjustment based on billet type and size. Furthermore, existing semi-automated repair equipment lacks efficient defect positioning mechanisms, and the fixed operating range of the repair actuator makes flexible adjustment based on billet specifications and defect size difficult. Different billet specifications or defect types require the replacement of specialized repair components, resulting in cumbersome operation. Therefore, a new continuous casting machine billet surface defect repair device needs to be designed to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide a device for repairing surface defects of billets in continuous casting machines, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for repairing surface defects of billets in a continuous casting machine, comprising a base, a conveying support frame, and a processing support frame. The upper left and right sides of the base are fixedly connected to the conveying support frame, and the lower left and right sides of the inner side of the conveying support frame are rotatably connected to the conveying rollers. The upper end of the conveying support frame is slidably connected to a lifting frame, and the lower side of the lifting frame is rotatably connected to a lifting pressure roller. A processing support frame is fixedly connected to the upper middle position of the base. A lead screw is rotatably connected to the inner side of the upper wall of the processing support frame. A sliding seat is helically connected to the outer side of the lead screw. The sliding seat is slidably connected to the processing support frame. A hydraulic rod is fixedly connected to the lower end of the sliding seat. A support plate is fixedly connected to the lower end of the inner movable rod of the hydraulic rod.

[0006] Preferably, a first stepper motor is fixedly connected to the middle position of the upper end of the lifting frame, and an adjusting screw is fixedly connected to the lower end of the output shaft of the first stepper motor. The adjusting screw is screwed to the conveying support frame and rotatably connected to the lifting frame.

[0007] Preferably, a second stepper motor is fixedly connected to the lower front end of the conveying support frame, and a bidirectional screw is fixedly connected to the rear end of the output shaft of the second stepper motor. The bidirectional screw is rotatably connected to the conveying support frame, and a limit plate is helically connected to the outer side of the bidirectional screw. A fixed guide rod is provided below the bidirectional screw, and the fixed guide rod is slidably connected to the limit plate. The fixed guide rod is fixedly connected to the conveying support frame.

[0008] Preferably, a third stepper motor is fixedly connected to the upper front end of the processing support frame, and the output shaft of the third stepper motor is fixedly connected to the lead screw.

[0009] Preferably, a welding gun is fixedly connected to the left end of the support plate, an arc cladding gun is fixedly connected to the left side of the support plate near the middle position, and a grinder is fixedly connected to the right end of the support plate.

[0010] Preferably, an air guide frame is fixedly connected to the lower left side of the support plate, a protective air nozzle is sealed to the inner side of the air guide frame, and an air inlet pipe is sealed to the left end of the air guide frame.

[0011] Preferably, a bridging plate is fixedly connected between the upper right side of the conveying support frame located on the left and the processing support frame, a vision inspection component is fixedly connected to the lower end of the bridging plate, and a PLC controller is fixedly connected to the middle position of the upper end of the processing support frame, and the PLC controller is electrically connected to the vision inspection component.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This continuous casting machine billet surface defect repair device uses conveying rollers to support the billet at the bottom. A first stepper motor drives an adjusting screw to rotate, which in turn moves a lifting frame up and down, causing a lifting pressure roller to press down and limit the billet. A second stepper motor drives a bidirectional screw to rotate, moving a limiting plate to the front and rear sides of the billet. The device connects to the continuous casting machine production line via the conveying rollers, enabling the positioning and conveying of billets according to different billet models, thus improving the efficiency of billet surface defect repair.

[0013] 2. This continuous casting machine billet surface defect repair device can detect the surface of the billet through the function of a vision inspection component. When a defect is found, the PLC controller can control the third stepper motor to rotate according to the detection information, so that the lead screw can drive the sliding seat to move. By controlling the extension and retraction of the hydraulic rod, the support plate can drive each repair machine to move up and down and back and forth, thereby enabling efficient positioning processing. Different machines can be used to repair defects according to the defect type, improving the convenience of repairing different types of defects. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the installation structure of this utility model; Figure 2 This is a schematic diagram of the installation structure of the lifting frame and lifting pressure roller of this utility model; Figure 3 This is a schematic diagram of the mounting structure of the second stepper motor of this utility model; Figure 4 This is a schematic diagram of the inner structure of the processing support frame of this utility model; Figure 5 This is a bottom view of the installation structure of the vision inspection component and PLC controller of this utility model; Figure 6 This is a bottom view of the installation structure of the air guide frame, protective air nozzle, and air inlet pipe of this utility model.

[0015] In the diagram: 1. Base; 2. Conveyor support frame; 3. Conveyor roller; 4. Lifting frame; 5. Lifting pressure roller; 6. Processing support frame; 7. Lead screw; 8. Sliding seat; 9. Hydraulic rod; 10. Support plate; 11. First stepper motor; 12. Adjusting screw; 13. Second stepper motor; 14. Bidirectional screw; 15. Limiting plate; 16. Fixed guide rod; 17. Third stepper motor; 18. Welding torch; 19. Arc cladding torch; 20. Grinding machine; 21. Air guide frame; 22. Protective gas nozzle; 23. Air inlet pipe; 24. Bridging plate; 25. Vision inspection component; 26. PLC controller. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1 Please refer to Figure 1-6As shown, this utility model provides a device for repairing surface defects of a continuous casting billet, including a base 1, a conveying support frame 2, and a processing support frame 6. The upper left and right sides of the base 1 are fixedly connected to the conveying support frame 2, and the lower left and right sides of the inner side of the conveying support frame 2 are rotatably connected to the conveying rollers 3. The conveying rollers 3 can provide bottom support for the billet. The upper end of the conveying support frame 2 is slidably connected to the lifting frame 4, and the lower side of the frame of the lifting frame 4 is rotatably connected to the lifting pressure roller 5. The lifting frame 4 can drive the lifting pressure roller 5 to move up and down, thereby cooperating with the conveying rollers 3 to perform upper and lower limit processing on the billet. A processing support frame 6 is fixedly connected to the upper middle position of the base 1. A lead screw 7 is rotatably connected to the inner side of the upper wall of the processing support frame 6. A sliding seat 8 is screwed to the outer side of the lead screw 7. The sliding seat 8 is slidably connected to the processing support frame 6. A hydraulic rod 9 is fixedly connected to the lower end of the sliding seat 8. A support plate 10 is fixedly connected to the lower end of the inner movable rod of the hydraulic rod 9. The sliding seat 8 can move back and forth by rotating the lead screw 7, and the support plate 10 can be driven to move up and down by the extension and retraction of the hydraulic rod 9. Thus, the repair electrical equipment supported by the support plate 10 can be controlled to move back and forth and up and down.

[0018] Specifically, a first stepper motor 11 is fixedly connected to the middle position of the upper end of the lifting frame 4. An adjusting screw 12 is fixedly connected to the lower end of the output shaft of the first stepper motor 11. The adjusting screw 12 is screwed to the conveying support frame 2 and rotated to the lifting frame 4. By driving the first stepper motor 11 to rotate, the adjusting screw 12 can rotate, thereby driving the lifting frame 4 and the lifting pressure roller 5 to move up and down.

[0019] Specifically, a second stepper motor 13 is fixedly connected to the lower front end of the conveying support frame 2. A bidirectional screw 14 is fixedly connected to the rear end of the output shaft of the second stepper motor 13. The bidirectional screw 14 is rotatably connected to the conveying support frame 2. A limit plate 15 is spirally connected to the outer side of the bidirectional screw 14. A fixed guide rod 16 is provided below the bidirectional screw 14. The fixed guide rod 16 is slidably connected to the limit plate 15. The fixed guide rod 16 is fixedly connected to the conveying support frame 2. By simultaneously driving the two second stepper motors 13 to rotate, the bidirectional screw 14 can rotate, thereby enabling the two limit plates 15 to move towards each other along the direction of the fixed guide rod 16 to the front and rear sides of the billet for limiting.

[0020] Specifically, a third stepper motor 17 is fixedly connected to the upper front end of the processing support 6. The output shaft of the third stepper motor 17 is fixedly connected to the lead screw 7. The lead screw 7 can be driven to rotate by the rotation of the third stepper motor 17.

[0021] Specifically, a welding torch 18 is fixedly connected to the left end of the support plate 10. The welding torch 18 can be used to weld and repair cracks on the surface of the cast billet. An arc cladding torch 19 is fixedly connected to the left side of the support plate 10 near the middle position. The arc cladding torch 19 can fill and clad the pits. A grinder 20 is fixedly connected to the right end of the support plate 10. The grinder 20 can grind the welded and clad areas smooth.

[0022] Specifically, a gas guide frame 21 is fixedly connected to the lower left side of the support plate 10. A protective gas nozzle 22 is sealed to the inner side of the gas guide frame 21. An air inlet pipe 23 is sealed to the left end of the gas guide frame 21. Protective gas can be sent into the gas guide frame 21 through the air inlet pipe 23, and inert gas can be sprayed through the protective gas nozzle 22 to protect the cladding area and prevent oxidation.

[0023] Specifically, a bridging plate 24 is fixedly connected between the upper right side of the conveying support frame 2 on the left and the processing support frame 6. A vision inspection component 25 is fixedly connected to the lower end of the bridging plate 24. A PLC controller 26 is fixedly connected to the middle position of the upper end of the processing support frame 6. The PLC controller 26 and the vision inspection component 25 are electrically connected. The vision inspection component 25 can inspect the surface of the casting billet. When there is a defect, the inspection information is transmitted to the PLC controller 26. The PLC controller 26 can accurately control and process various electrical devices in the device according to the inspection information.

[0024] Working Principle: This utility model is a device for repairing surface defects of billets in continuous casting machines. When repairing surface defects of billets in continuous casting machines, the device is first installed at the output end of the continuous casting machine. After the billet is conveyed to the left end of the device, the bottom of the billet is supported by the conveying roller 3. Simultaneous driving of two first-step motors 11 causes the adjusting screw 12 to rotate, which in turn drives the lifting frame 4 to move up and down. The lifting pressure roller 5, in conjunction with the conveying roller 3, performs upper and lower limit treatment on the billet. Simultaneous driving of two second-step motors 13 causes the bidirectional screw 14 to rotate, which in turn causes the two limiting plates 15 to move towards each other along the direction of the fixed guide rod 16 to limit the front and rear sides of the billet. The conveying roller 3 connects to the continuous casting machine production line for continuous conveying of the billet, enabling the positioning and conveying of billets according to different billet models. This system improves the efficiency of repairing surface defects on cast billets. When the cast billet is input, the visual inspection component 25 can inspect the surface of the cast billet. When a defect is found, the inspection information is transmitted to the PLC controller 26. The PLC controller 26 can control the third stepper motor 17 to rotate according to the inspection information, so that the lead screw 7 can drive the sliding seat 8 to move. By controlling the extension and retraction of the hydraulic rod 9, the support plate 10 can drive each repair machine to move up, down, back and forth. This allows for efficient movement and positioning of the repair machines according to the location of the defect. The welding torch 18 on the support plate 10 can be used to weld and repair surface cracks on the cast billet, the arc cladding torch 19 can fill and clad pits, and the grinding machine 20 can grind the welded and clad areas. Thus, different machines can be used to repair defects according to the type of defect, improving the convenience of repairing different types of defects.

[0025] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for repairing surface defects of billets in a continuous casting machine, comprising a base (1), a conveying support frame (2), and a processing support frame (6), characterized in that: The upper left and right sides of the base (1) are fixedly connected to a conveying support frame (2), and the lower left and right sides of the inner side of the conveying support frame (2) are rotatably connected to a conveying roller (3). The upper end of the conveying support frame (2) is slidably connected to a lifting frame (4), and the lower side of the lifting frame (4) is rotatably connected to a lifting pressure roller (5). A processing support frame (6) is fixedly connected to the middle position of the upper end of the base (1). A lead screw (7) is rotatably connected to the inner side of the upper wall of the processing support frame (6). A sliding seat (8) is spirally connected to the outer side of the lead screw (7). The sliding seat (8) is slidably connected to the processing support frame (6). A hydraulic rod (9) is fixedly connected to the lower end of the sliding seat (8). A support plate (10) is fixedly connected to the lower end of the inner movable rod of the hydraulic rod (9).

2. The continuous casting machine billet surface defect repair device according to claim 1, characterized in that: A first stepper motor (11) is fixedly connected to the middle position of the upper end of the lifting frame (4). An adjusting screw (12) is fixedly connected to the lower end of the output shaft of the first stepper motor (11). The adjusting screw (12) is spirally connected to the conveying support frame (2), and the adjusting screw (12) is rotatably connected to the lifting frame (4).

3. The continuous casting machine billet surface defect repair device according to claim 1, characterized in that: A second stepper motor (13) is fixedly connected to the lower front end of the conveying support frame (2). A bidirectional screw (14) is fixedly connected to the rear end of the output shaft of the second stepper motor (13). The bidirectional screw (14) is rotatably connected to the conveying support frame (2). A limit plate (15) is spirally connected to the outer side of the bidirectional screw (14). A fixed guide rod (16) is provided below the bidirectional screw (14). The fixed guide rod (16) is slidably connected to the limit plate (15). The fixed guide rod (16) is fixedly connected to the conveying support frame (2).

4. The continuous casting machine billet surface defect repair device according to claim 1, characterized in that: A third stepper motor (17) is fixedly connected to the upper front end of the processing support (6), and the output shaft of the third stepper motor (17) is fixedly connected to the lead screw (7).

5. The continuous casting machine billet surface defect repair device according to claim 1, characterized in that: A welding gun (18) is fixedly connected to the left end of the support plate (10), an arc cladding gun (19) is fixedly connected to the left side of the support plate (10) near the middle position, and a grinder (20) is fixedly connected to the right end of the support plate (10).

6. The continuous casting machine billet surface defect repair device according to claim 1, characterized in that: An air guide frame (21) is fixedly connected to the lower left side of the support plate (10), a protective air nozzle (22) is sealed to the inner side of the air guide frame (21), and an air inlet pipe (23) is sealed to the left end of the air guide frame (21).

7. The continuous casting machine billet surface defect repair device according to claim 1, characterized in that: A bridging plate (24) is fixedly connected between the upper right side of the conveying support frame (2) on the left and the processing support frame (6). A vision inspection component (25) is fixedly connected to the lower end of the bridging plate (24). A PLC controller (26) is fixedly connected to the middle position of the upper end of the processing support frame (6). The PLC controller (26) is electrically connected to the vision inspection component (25).

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