A device for removing weld slag from a steel strip

Abstract

The utility model belongs to the technical field of oxide skin removing device, concretely relates to a steel band butt welding oxide skin removing device, include: work table, set up in the fixed subassembly of work table middle part, to fix the steel band of waiting for processing, set up in the support subassembly of fixed subassembly front side, to support the steel band of waiting for processing, set up in the removing subassembly of fixed subassembly back side, to remove the oxide skin of steel band welding position place both sides of waiting for processing, the utility model removing subassembly adopts the removing roller of spacing arrangement up and down, and the outer surface of 2 removing rollers all is fixed with removing brush, and respectively correspond the upper surface and lower surface of steel band. When using, drive motor drives 2 removing rollers synchronous rotation, makes up and down clearly brush simultaneously with the upper and lower contact of steel band and friction, realizes single procedure in -synchronous removal double -surface oxide skin, improves oxide skin removing effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of oxide scale removal devices, specifically relating to an oxide scale removal device for steel strip butt welding. Background Technology

[0002] Galvanized steel pipe, also known as pre-galvanized steel pipe, is a welded pipe made from galvanized steel strip through multiple processes, including welding. During actual processing, factors such as storage environment can cause oxide scale and other foreign matter to accumulate on the steel strip surface. This oxide scale at the weld joint can easily create porosity in the weld, reducing the connection strength of the steel strip after welding, affecting weld quality, and consequently impacting the sealing performance of the finished galvanized steel pipe. Therefore, it is essential to remove the oxide scale from the weld area.

[0003] Existing technologies disclose devices for removing oxide scale, such as the patent CN211217627U, which discloses an oxide scale removal device for steel strip welding. The device includes a welding workbench, an electric motor fixedly connected to the upper end of the welding workbench, a welding frame fixedly connected to the left side of the electric motor, a ball screw fixedly connected to the rotating end of the electric motor, a rear cleaning frame fixedly connected to the lower side of the ball screw, an upper retaining ring fixedly connected to the right end of the rear cleaning frame, a longitudinal sliding rod slidably connected inside the upper retaining ring, an active inclined guide block fixedly connected to the lower end of the longitudinal sliding rod, a lower retaining ring fixedly connected to the lower side of the active inclined guide block, a lateral moving connecting rod slidably connected inside the lower retaining ring, and a cleaning brush fixedly connected to the lower end of the lateral moving connecting rod. In use, the translational displacement frame slides on the ball screw, and the spiral groove on the ball screw drives the reset limit ring to move up and down, thereby causing the driven inclined guide block and the cleaning brush to move left and right under the push of the active inclined guide block, thus completing the removal of metal oxide scale at the weld, reducing the generation of weld porosity by oxide scale during the welding process, and improving the connection strength of the steel strip after welding.

[0004] However, it also has some shortcomings: the fit between the sliding spring and the ball screw helical groove depends on the compression spring. After long-term use, the spring is prone to fatigue, resulting in a loose fit between the sliding spring and the ball screw, which affects the accuracy of the vertical movement of the longitudinal slide bar, making the reciprocating frequency of the cleaning brush unstable and affecting the cleaning effect; secondly, the small contact area between the cleaning brush and the steel belt will affect the cleaning efficiency to some extent; in addition, the device can only remove the oxide scale on the upper or lower surface of the steel belt at the same time, and cannot remove the oxide scale on both the upper and lower surfaces of the steel belt at the same time.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a device for removing oxide scale from steel strip welds, so as to solve the problems existing in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A device for removing oxide scale from steel strip butt welds, comprising: Workbench; A fixed component is disposed in the middle of the workbench; A support component disposed on the front side of the fixing component; The cleaning assembly located behind the fixed assembly includes a mounting frame, a linear guide rail fixed to the workbench and located below the mounting frame, a slide block fixed to the bottom of the mounting frame and slidingly guided by the linear guide rail, a first cylinder fixed to the workbench and located outside the mounting frame with its telescopic end fixedly connected to the mounting frame, cleaning rollers spaced vertically within the mounting frame and penetrating through the mounting frame at both ends, a cleaning brush fixed to the outer surface of the cleaning rollers, and a drive motor fixed to the outer side of the mounting frame and connected to one outer end of the cleaning rollers via a coupling; wherein, a seated bearing is respectively mounted on both ends of the cleaning rollers, and the seated bearings are fixed to the mounting frame.

[0008] Furthermore, the fixing component includes a fixing frame, an abutment plate fixed to the middle of the fixing frame, a second cylinder fixed to the top of the fixing frame and having its telescopic end extending vertically downward through the fixing frame, and a pressing plate fixed to the bottom of the telescopic end of the second cylinder.

[0009] Furthermore, the bottom of the abutment plate is vertically welded with multiple vertically downward support plates at even intervals, and the bottom end of the support plates is welded to the base plate of the fixing frame.

[0010] Furthermore, two guide rods are fixed at intervals on the top of the extrusion plate; a guide sleeve corresponding to the guide rod is fixed on the top of the fixing frame; the guide rod passes through the guide sleeve and slides with it.

[0011] Furthermore, the bottom of the extrusion plate is provided with two rubber extrusion strips spaced apart, and the extrusion strips extend along the length direction of the extrusion plate.

[0012] Furthermore, the support assembly includes horizontally spaced unpowered rollers and support frames fixed to both ends of the unpowered rollers; the top of the unpowered rollers is flush with the top of the abutment plate and located in the middle of the two cleaning rollers.

[0013] Compared with the prior art, the present invention has the following beneficial effects: (1) The cleaning component of this utility model adopts cleaning rollers arranged at intervals between the upper and lower parts. The outer surfaces of the two cleaning rollers are fixed with cleaning brushes, which correspond to the upper and lower surfaces of the steel strip respectively. In use, the drive motor drives the two cleaning rollers to rotate synchronously, so that the upper and lower cleaning brushes contact and rub against the upper and lower parts of the steel strip at the same time, realizing the synchronous removal of oxide scale on both surfaces in a single process and improving the oxide scale removal effect.

[0014] (2) The present invention has a brush fixed to the outer surface of the cleaning roller. The length of the cleaning roller can cover the width of the steel strip. The cleaning roller rotates continuously under the drive of the motor. The contact area is large, which can more comprehensively cover the oxide scale area at the welding position and improve the cleaning efficiency.

[0015] (3) The movement of the mounting bracket of this utility model is driven by the first cylinder and guided along the linear guide rail and slide block. It has high movement stability, ensuring uniform contact pressure between the cleaning brush and the steel belt, and maintaining a stable cleaning effect.

[0016] (4) The second cylinder of this utility model drives the extrusion plate to move, so that the extrusion plate and the abutment plate clamp and fix the steel strip, ensuring that the oxide scale of the steel strip does not shift during the cleaning process, which is conducive to the smooth progress of the work; moreover, the rubber extrusion strip at the bottom of the extrusion plate can not only increase the friction to strengthen the steel strip, but also avoid direct metal contact and scratch the surface of the steel strip, taking into account both the reliability of fixation and protection; secondly, the bottom of the abutment plate is reinforced by welding multiple support plates to improve the support strength. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 Main view; Figure 3 for Figure 1 Rear view; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 1 Top view; Figure 6 for Figure 1 Right view.

[0018] Explanation of key figure labels: 1. Workbench; 2. Fixing assembly; 21. Fixing frame; 22. Abutment plate; 23. Second cylinder; 24. Extrusion plate; 25. Support plate; 26. Guide rod; 27. Guide sleeve; 28. Extrusion strip; 3. Supporting assembly; 31. Unpowered roller; 32. Support frame; 4. Cleaning assembly; 41. Mounting frame; 42. Linear guide rail; 43. Slide; 44. First cylinder; 45. Cleaning roller; 46. Cleaning brush; 47. Drive motor; 48. Bearing with seat. Detailed Implementation

[0019] The technical solution of this utility model patent will be clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Example See appendix Figure 1-6 A device for removing oxide scale from steel strip butt welds, comprising: Workbench 1; The fixing component 2, located in the middle of the workbench 1, includes a fixing frame 21, an abutment plate 22 fixed in the middle of the fixing frame 21, a second cylinder 23 fixed to the top of the fixing frame 21 with its telescopic end extending vertically downward through the fixing frame 21, and an extrusion plate 24 fixed to the bottom of the telescopic end of the second cylinder 23. The bottom of the abutment plate 22 is vertically welded with multiple vertically downward support plates 25 at even intervals, and the bottom ends of the support plates 25 are welded to the base plate of the fixing frame 21. The top of the extrusion plate 24 is fixed with two guide rods 26 at intervals, and the top of the fixing frame 21 is fixed with guide sleeves 27 corresponding to the guide rods 26, with the guide rods 26 passing through the guide sleeves 27 and slidingly engaging with them. The bottom of the extrusion plate 24 is provided with two rubber extrusion strips 28 at intervals, extending along the length of the extrusion plate 24. The support assembly 3, located in front of the fixed assembly 2, includes horizontally spaced non-powered rollers 31 and support frames 32 fixed to both ends of the non-powered rollers 31. The cleaning assembly 4, located behind the fixed assembly 2, includes a mounting frame 41, a linear guide rail 42 fixed to the workbench 1 and located below the mounting frame 41, a slide block 43 fixed to the bottom of the mounting frame 41 and slidingly guided by the linear guide rail 42, a first cylinder 44 fixed to the workbench 1 and located outside the mounting frame 41 with its telescopic end fixedly connected to the mounting frame 41, cleaning rollers 45 spaced vertically within the mounting frame 41 and penetrating through the mounting frame 41 at both ends, cleaning brushes 46 fixed to the outer surface of the cleaning rollers 45, and a drive motor 47 fixed to the outer side of the mounting frame 41 and connected to one outer end of the cleaning rollers 45 via a coupling (not shown in the attached figure). Each end of the cleaning rollers 45 is equipped with a seated bearing 48, which is fixed to the mounting frame 41, allowing the cleaning rollers 45 and the mounting frame 41 to rotate.

[0021] In this embodiment, the top of the unpowered roller 31 is flush with the top of the abutment plate 22 and is located in the middle of the two cleaning rollers 45.

[0022] One end of the steel strip to be processed is pushed along the surface of the unpowered roller 31 of the support assembly 3, so that the welded position of the steel strip (the area where the oxide scale needs to be removed) passes between the abutment plate 22 and the extrusion plate 23 of the fixing assembly 2, and extends to the space between the upper and lower cleaning rollers of the cleaning assembly 4. Then the position of the steel strip is adjusted to ensure that the upper and lower surfaces of the welded position of the steel strip (the area to be cleaned) are aligned with the working range of the cleaning brush 46 of the cleaning assembly 4, and that the surface of the steel strip is flat and in close contact with the top of the abutment plate 22 to ensure that the steel strip is conveyed horizontally.

[0023] The second cylinder 23 of the fixing assembly 2 is activated, controlling its telescopic end to extend vertically downwards, causing the extrusion plate 24 to move closer to the abutment plate 22. During this process, the guide rod 26 slides along the guide sleeve 27, ensuring that the extrusion plate 24 descends horizontally until the bottom extrusion strip 28 is tightly pressed against the surface of the steel strip, pressing the steel strip firmly onto the abutment plate 22. It should be noted that the bottom of the abutment plate 22 is reinforced by a support plate 25 to ensure support strength. Then, the telescopic action of the second cylinder 23 is closed, maintaining the steel strip in a fixed state. The flexible material of the extrusion strip 28 prevents scratching the surface of the steel strip.

[0024] The first cylinder 24 of the cleaning assembly 24 is activated, controlling its telescopic end to push the mounting bracket 41, causing the slide block 43 to move along the linear guide rail 42 towards the steel strip until the cleaning brushes 46 on the cleaning rollers 45, which are spaced apart, respectively adhere to the upper and lower surfaces of the steel strip welding position. The drive motor 47 is then activated, causing the cleaning rollers 45 to rotate. The cleaning brushes 46 on the outer surface of the cleaning rollers 45 rotate at high speed with the cleaning rollers 45, performing friction cleaning on the upper and lower surfaces of the steel strip welding position to remove oxide scale. Simultaneously, the telescopic end of the first cylinder 24 is slowly extended and retracted, causing the first cylinder 24 to drive the mounting bracket 41 to reciprocate along the linear guide rail 42, ensuring that the cleaning brushes 46 cover the entire area to be cleaned along the length of the steel strip, guaranteeing thorough cleaning.

[0025] After the oxide scale at the welding position is completely removed, first turn off the drive motor 47 to stop the rotation of the cleaning roller 45; then control the retraction end of the first cylinder 44 to retract, driving the mounting frame 41 and the cleaning roller 45 away from the steel strip and returning them to their initial positions; start the second cylinder 23, controlling its retraction end to retract upwards, driving the extrusion plate 24 to rise, releasing the pressure on the steel strip, and the guide rod 26 moves upwards along the guide sleeve 27 synchronously with the extrusion plate. Finally, remove the cleaned steel strip from the unpowered roller 31, completing a single oxide scale removal operation.

[0026] Finally, it should be noted that the cleaning roller 45 is densely covered with cleaning brushes 46, and only a portion of the cleaning brushes 46 are shown in the view.

[0027] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A device for removing oxide scale from steel strip welds, characterized in that, include: Workbench; A fixed component is disposed in the middle of the workbench; A support component disposed on the front side of the fixing component; The cleaning assembly located behind the fixed assembly includes a mounting frame, a linear guide rail fixed to the workbench and located below the mounting frame, a slide block fixed to the bottom of the mounting frame and slidingly guided by the linear guide rail, a first cylinder fixed to the workbench and located outside the mounting frame with its telescopic end fixedly connected to the mounting frame, cleaning rollers spaced vertically within the mounting frame and penetrating through the mounting frame at both ends, a cleaning brush fixed to the outer surface of the cleaning rollers, and a drive motor fixed to the outer side of the mounting frame and connected to one outer end of the cleaning rollers via a coupling; wherein, a seated bearing is respectively mounted on both ends of the cleaning rollers, and the seated bearings are fixed to the mounting frame.

2. The steel strip butt welding oxide scale removal device according to claim 1, characterized in that, The fixing assembly includes a fixing frame, an abutment plate fixed to the middle of the fixing frame, a second cylinder fixed to the top of the fixing frame and with its telescopic end extending vertically downward through the fixing frame, and a pressing plate fixed to the bottom of the telescopic end of the second cylinder.

3. The steel strip butt welding oxide scale removal device according to claim 2, characterized in that, The bottom of the abutment plate is vertically welded with multiple vertically downward support plates at even intervals, and the bottom end of the support plates is welded to the base plate of the fixed frame.

4. The steel strip butt welding oxide scale removal device according to claim 2, characterized in that, Two guide rods are fixed at intervals on the top of the extrusion plate; a guide sleeve corresponding to the guide rod is fixed on the top of the fixing frame; the guide rod passes through the guide sleeve and slides with it.

5. The steel strip butt welding oxide scale removal device according to claim 2, characterized in that, The bottom of the extrusion plate is provided with two rubber extrusion strips spaced apart, and the extrusion strips extend along the length of the extrusion plate.

6. The steel strip butt welding oxide scale removal device according to claim 2, characterized in that, The support assembly includes horizontally spaced unpowered rollers and support frames fixed to both ends of the unpowered rollers; the top of the unpowered rollers is flush with the top of the abutment plate and located in the middle of the two cleaning rollers.

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