U-shaped steel grinding device for photovoltaic support production

Abstract

The U-shaped steel polishing device for photovoltaic support production comprises a discharging frame, the discharging frame comprises a rack and a discharging carrier roller, a polishing assembly is arranged on the discharging frame and comprises a polishing part, the polishing part comprises an outer polishing part, an inner polishing part is arranged in the outer polishing part, and the discharging carrier roller is arranged on the outer polishing part. The inner polishing piece and the outer polishing piece are fixedly connected through a connecting piece, a space for inserting U-shaped steel is formed between the outer polishing piece and the inner polishing piece, steel wire brushes are connected to the outer polishing piece, the inner polishing piece and the connecting piece and make contact with the U-shaped steel, and a clamping and fixing assembly is arranged on the discharging frame. The device has the beneficial effects that the two ends of the two sections of U-shaped steel are polished and deburred at the same time through the polishing part, continuous polishing can be conducted, the working efficiency is improved, the manual labor intensity is reduced, the U-shaped steel is inserted into the space between the inner polishing piece and the outer polishing piece, a steel wire brush makes contact with the U-shaped steel and can make full contact with the U-shaped steel, and the polishing effect is good. And burrs can be completely removed, and the grinding effect is improved.

Description

Technical Field

[0001] This invention relates to the field of U-shaped steel processing technology, and more specifically, to a U-shaped steel grinding device for photovoltaic bracket production. Background Technology

[0002] A photovoltaic (PV) mounting bracket is a support structure for installing PV panels. The bracket can be directly secured to a crossbeam with screws to ensure its stability. U-shaped steel is one of the main components of a PV mounting bracket.

[0003] Existing related technologies, such as the patent with application number CN201911406706.7 entitled "A Roller Continuous Cold Bending Forming Method for U-Shaped Steel Sheet Piles" and the patent with application number CN202210316609.4 entitled "A Production Process for C or U-Shaped Steel Photovoltaic Brackets," involve directly storing the steel strip after cold bending and cutting. After the U-shaped steel is cut, burrs will be generated at the ends. There is no grinding equipment for U-shaped steel, and manual grinding machines are required to grind the ends of the U-shaped steel one by one. This is inefficient, labor-intensive, and can only grind the outer wall of the U-shaped steel, failing to remove the burrs on the inner wall and thus affecting the grinding effect. Summary of the Invention

[0004] To address the above deficiencies, this invention provides a U-shaped steel grinding device for photovoltaic bracket production, thus solving the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A grinding device for U-shaped steel used in photovoltaic bracket production includes a feeding rack, which includes a frame and feeding rollers. Several feeding rollers are rotatably connected to the frame. A grinding assembly is provided on the feeding rack. The grinding assembly includes a grinding section located between two adjacent feeding rollers. The grinding section includes an outer grinding component and an inner grinding component inside the outer grinding component. The inner grinding component and the outer grinding component are fixedly connected by a connector. A space for inserting U-shaped steel is provided between the outer grinding component and the inner grinding component. Wire brushes are connected to the outer grinding component, the inner grinding component, and the connector, and the wire brushes contact the U-shaped steel. A clamping and fixing assembly is provided on the feeding rack.

[0006] As a preferred embodiment of the present invention, the polishing assembly further includes a movable part, the polishing part is disposed on the movable part, and the polishing part follows the movable part.

[0007] As a preferred embodiment of the present invention, the moving part includes a moving base plate, a fixed base plate is fixedly connected to the unloading rack, a linear slide is mounted on the fixed base plate, the moving base plate is fixedly connected to the slider of the linear slide, the linear slide drives the moving base plate to move left and right, lifting cylinders are fixedly installed on both sides of the surface of the moving base plate, connecting blocks are fixedly connected to the telescopic ends of the lifting cylinders, a lifting box is fixedly connected between the two connecting blocks, the lifting cylinders drive the lifting box to rise and fall, a guide groove is provided on the surface of the lifting box, a guide slider is slidably connected to the guide groove, a fixed block is fixedly connected to the surface of the guide slider, and the grinding part is fixedly connected to the surface of the fixed block.

[0008] As a preferred embodiment of the present invention, the grinding part further includes a drive motor fixedly installed in the lifting box body. A rotating disk is installed on the output end of the drive motor. A first pin is fixedly connected to one side of the surface of the rotating disk, and a second pin is fixedly connected to one side of the bottom surface of the guide slider. A crank connecting rod is connected between the first pin and the second pin.

[0009] As a preferred embodiment of the present invention, the clamping and fixing assembly includes a movable slide plate, guide grooves on both sides of the unloading frame, a movable slider slidably connected in the guide grooves, the movable slide plate and the movable slider being fixedly connected, the movable slide plate being located on both sides of the unloading frame, a heightening plate being fixedly connected to the surface of the movable slide plate, a clamping cylinder being fixedly connected to the surface of the heightening plate, a clamping plate being fixedly connected to the telescopic end of the clamping cylinder, the clamping plate being located above the unloading roller, a gap being present between the clamping plate and the unloading roller, and an anti-slip pad being connected to the clamping plate.

[0010] As a preferred embodiment of the present invention, a right side plate is fixedly connected to one side of the surface of the lifting box, and a right laser sensor is installed on the right side plate; a left side plate is fixedly connected to the other side of the surface of the lifting box, and a left laser sensor is installed on the left side plate.

[0011] The position of the cut U-shaped steel is detected by the right laser sensor, and the position of the U-shaped steel being cut is detected by the left laser sensor.

[0012] As a preferred embodiment of the present invention, a connecting plate is fixedly connected to one side of the movable base plate, the two ends of the connecting plate extend out of the unloading rack, and support rods are fixedly connected to both sides of the surface of the connecting plate, with the top of the support rods fixedly connected to the movable slide plate.

[0013] As a preferred embodiment of the present invention, the width of the lifting box is smaller than the width of the frame, and the lifting box is located below the feeding roller.

[0014] The lifting box will not touch the frame or the unloading rollers when it moves, and will not obstruct the conveying of U-shaped steel.

[0015] As a preferred embodiment of the present invention, an electrical control box is installed at the end of the unloading rack, and the electrical control box is equipped with multiple control buttons and indicator lights.

[0016] After the cut U-shaped steel is polished, the indicator light turns green, and the staff removes the U-shaped steel from the unloading rack.

[0017] The beneficial effects of this invention are: By moving the grinding section back and forth, the two ends of the two U-shaped steel sections are simultaneously ground to remove burrs. Grinding can be performed continuously, which improves work efficiency and reduces manual labor intensity. The U-shaped steel is inserted into the space between the inner and outer grinding parts. The wire brush comes into contact with the U-shaped steel and can fully contact the U-shaped steel to completely eliminate burrs and improve the grinding effect. The U-shaped steel is clamped and fixed by moving two clamping plates relative to each other and bringing them closer together through a clamping cylinder. The anti-slip pads improve the anti-slip effect, prevent the U-shaped steel from shifting, and improve the grinding effect. The moving part drives the grinding part and the clamping and fixing components to move, which can move synchronously with the conveying speed of the U-shaped steel. The cut U-shaped steel and the U-shaped steel being cut move synchronously, and grinding and deburring are performed at the same time. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a U-shaped steel grinding device for photovoltaic bracket production according to the present invention; Figure 2 This is a cross-sectional view of the polishing component; Figure 3 This is a diagram showing the grinding section moving to the right. Figure 4 This is a diagram showing the descent of the grinding section; Figure 5 This is a side view of the grinding component and the clamping and fixing component; Figure 6 This is a top view of the clamping and fixing components; Figure 7 This is a sectional view of the lifting box; Figure 8 This is a side view of the grinding section and the lifting box. Figure 9 This is a top view of the grinding section and the lifting box; In the diagram, 1. Grinding section; 2. Frame; 3. Feeding roller; 4. Grinding section; 5. Outer grinding component; 6. Inner grinding component; 7. Connecting component; 8. Wire brush; 9. Moving part; 10. Moving base plate; 11. Fixed base plate; 12. Linear slide; 13. Lifting cylinder; 14. Connecting block; 15. Lifting box; 16. Guide groove; 17. Guide slider; 18. Fixed block; 19. Drive motor; 20. Rotating disc; 21. 21. First pin; 22. Second pin; 23. Crank connecting rod; 24. Moving slide plate; 25. Guide slide groove; 26. Moving slider; 27. Heightening plate; 28. Clamping cylinder; 29. ​​Clamping plate; 30. Anti-slip pad; 31. Right side plate; 32. Right laser sensor; 33. Left side plate; 34. Left laser sensor; 35. Connecting plate; 36. Support connecting rod; 37. Electrical control box; 38. Control button; 39. Indicator light. Detailed Implementation

[0019] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] This application provides a U-shaped steel grinding device for photovoltaic bracket production. Please refer to... Figures 1-9 The system includes a feeding rack 1, which includes a frame 2 and feeding rollers 3. Several feeding rollers 3 are provided and are rotatably connected to the frame 2. A grinding assembly is provided on the feeding rack 1. The grinding assembly includes a grinding part 4, which is located between two adjacent feeding rollers 3. The grinding part 4 includes an outer grinding component 5 and an inner grinding component 6 inside the outer grinding component 5. The inner grinding component 6 and the outer grinding component 5 are fixedly connected by a connector 7. A space for inserting a U-shaped steel is provided between the outer grinding component 5 and the inner grinding component 6. A wire brush 8 is connected to the outer grinding component 5, the inner grinding component 6 and the connector 7. The wire brush 8 contacts the U-shaped steel. A clamping and fixing assembly is provided on the feeding rack 1.

[0021] In practical applications, the unloading rack 1 is located at the end of the forming machine. The forming machine cold-bends the raw material into U-shaped steel. The forming machine is equipped with a clamping and cutting device, which positions, clamps, and cuts the U-shaped steel. During cutting, the clamping and cutting device moves with the U-shaped steel, and the end of the U-shaped steel is conveyed to the unloading rack 1. The grinding part 4 grinds the end of the U-shaped steel to remove burrs generated during cutting. After the end of the first section of the U-shaped steel is ground, the grinding part 4 moves to the right and descends. The U-shaped steel is conveyed by the unloading rack 1. The front end of the first U-shaped steel is located on the right side of the grinding section 4, and the end of the second U-shaped steel is located on the left side of the grinding section 4. The grinding section 4 moves back and forth to grind and remove burrs from both ends of the two U-shaped steel at the same time. Grinding can be performed continuously, which improves work efficiency and reduces manual labor intensity. The U-shaped steel is inserted into the space between the inner grinding part 6 and the outer grinding part 5. The wire brush 8 comes into contact with the U-shaped steel and can make full contact with the U-shaped steel to completely eliminate burrs and improve the grinding effect.

[0022] Refer to the instruction manual appendix Figure 2 Instruction manual attached Figure 3 Included with instruction manual Figure 4 The polishing assembly also includes a moving part 9, and a polishing part 4 is disposed on the moving part 9, and the polishing part 4 moves with the moving part 9.

[0023] In practical applications, the grinding part 4 is moved and lifted by the moving part 9, and the grinding part 4 will not obstruct the conveying of the U-shaped steel.

[0024] Refer to the instruction manual appendix Figure 2 Instruction manual attached Figure 3 Included with instruction manual Figure 4 The moving part 9 includes a moving base plate 10, a fixed base plate 11 fixedly connected to the unloading rack 1, a linear slide table 12 mounted on the fixed base plate 11, the moving base plate 10 and the slider of the linear slide table 12 fixedly connected, the linear slide table 12 drives the moving base plate 10 to move left and right, lifting cylinders 13 are fixedly installed on both sides of the surface of the moving base plate 10, connecting blocks 14 are fixedly connected to the telescopic ends of the lifting cylinders 13, and a lifting box 15 is fixedly connected between the two connecting blocks 14, the lifting cylinders 13 drive the lifting box 15 to rise and fall, the surface of the lifting box 15 is provided with a guide groove 16, a guide slider 17 is slidably connected to the guide groove 16, a fixed block 18 is fixedly connected to the surface of the guide slider 17, and the grinding part 4 is fixedly connected to the surface of the fixed block 18.

[0025] In practical applications, when the grinding section 4 grinds the U-shaped steel, the linear slide 12 starts working. The slider of the linear slide 12 drives the moving base plate 10 to move to the right. The moving base plate 10, through the lifting cylinder 13 and the lifting box 15, drives the grinding section 4 to move to the right. The moving speed of the grinding section 4 is the same as the conveying speed of the U-shaped steel. After grinding the end of the first section of the U-shaped steel, the linear slide 12 increases the moving speed of the grinding section 4, so that the grinding section 4 moves away from the end of the first section of the U-shaped steel. At the same time, the lifting cylinder 13 opens. When the machine starts working, the extension end of the lifting cylinder 13 retracts, which drives the lifting box 15 and the grinding part 4 to descend through the connecting block 14. The first section of U-shaped steel is conveyed by the unloading rack 1. The front end of the first section of U-shaped steel is located on the right side of the grinding part 4. The linear slide 12 and the lifting cylinder 13 drive the grinding part 4 to reset. The end of the second section of U-shaped steel is located on the left side of the grinding part 4. The grinding part 4 moves back and forth to grind and remove burrs from both ends of the two sections of U-shaped steel at the same time. Grinding can be performed continuously, which improves work efficiency and reduces manual labor intensity.

[0026] Refer to the instruction manual appendix Figure 6 Included with instruction manual Figure 7 The grinding section 4 also includes a drive motor 19 fixedly installed in the lifting box 15. A rotating disk 20 is installed on the output end of the drive motor 19. A first pin 21 is fixedly connected to one side of the surface of the rotating disk 20. A second pin 22 is fixedly connected to one side of the bottom surface of the guide slider 17. A crank connecting rod 23 is connected between the first pin 21 and the second pin 22.

[0027] In practical applications, the drive motor 19 starts to work, and the output end of the drive motor 19 drives the rotating disk 20 to rotate. The rotating disk 20 drives the guide slider 17 to move back and forth along the guide groove 16 through the crank connecting rod 23. The guide slider 17 drives the grinding part 4 to move back and forth left and right through the fixed block 18. The grinding part 4 moves back and forth left and right to grind and remove burrs from both ends of the two U-shaped steel sections at the same time.

[0028] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 5 Included with instruction manual Figure 6 The clamping and fixing assembly includes a movable slide plate 24. Guide grooves 25 are provided on both sides of the unloading rack 1. A movable slider 26 is slidably connected in the guide grooves 25. The movable slide plate 24 is fixedly connected to the movable slider 26. The movable slide plate 24 is located on both sides of the unloading rack 1. An extension plate 27 is fixedly connected to the surface of the movable slide plate 24. A clamping cylinder 28 is fixedly connected to the surface of the extension plate 27. The telescopic end of the clamping cylinder 28 is fixedly connected to a clamping plate 29. The clamping plate 29 is located above the unloading roller 3. There is a gap between the clamping plate 29 and the unloading roller 3. An anti-slip pad 30 is connected to the clamping plate 29.

[0029] In practical applications, after the first U-shaped steel section moves to the right side of the grinding section 4, the clamping cylinder 28 starts to work. The telescopic end of the clamping cylinder 28 extends and drives the clamping plate 29 to move. The two clamping plates 29 move relative to each other and move closer to each other to clamp and fix the U-shaped steel. The anti-slip effect is improved by the anti-slip pad 30, which prevents the U-shaped steel from shifting and improves the grinding effect.

[0030] Refer to the instruction manual appendix Figure 6 Instruction manual attached Figure 8 Included with instruction manual Figure 9 A right side plate 31 is fixedly connected to one side of the surface of the lifting box 15, and a right laser sensor 32 is installed on the right side plate 31. A left side plate 33 is fixedly connected to the other side of the surface of the lifting box 15, and a left laser sensor 34 is installed on the left side plate 33.

[0031] In practical applications, the position of the cut U-shaped steel is detected by the right laser sensor 32 and the position of the U-shaped steel being cut is detected by the left laser sensor 34. When the two ends of the U-shaped steel are located on both sides of the grinding section 4, the grinding section 4 starts to work and grinds.

[0032] Refer to the instruction manual appendix Figure 1 Included with instruction manual Figure 5 A connecting plate 35 is fixedly connected to one side of the movable base plate 10. Both ends of the connecting plate 35 extend out of the unloading rack 1. Supporting rods 36 are fixedly connected to both sides of the surface of the connecting plate 35. The top of the supporting rods 36 is fixedly connected to the movable slide plate 24.

[0033] In practical applications, when the movable base plate 10 moves, the movable slide plate 24 is moved by the connecting plate 35 and the support rod 36. The movable slide plate 24 drives the movable slider 26 to slide along the guide groove 25. The movable slider 26 and the guide groove 25 guide the movable slide plate 24. The movable slide plate 24 drives the U-shaped steel to move by the clamping cylinder 28 and the clamping plate 29. The cut U-shaped steel and the U-shaped steel being cut move synchronously.

[0034] Refer to the instruction manual appendix Figure 2 Instruction manual attached Figure 5 Included with instruction manual Figure 6 The width of the lifting box 15 is smaller than the width of the frame 2, and the lifting box 15 is located below the feeding roller 3.

[0035] In practical applications, the movement of the lifting box 15 will not touch the frame 2 and the unloading roller 3, and will not hinder the conveying of U-shaped steel.

[0036] Refer to the instruction manual appendix Figure 5 An electrical control box 37 is installed at the end of the unloading rack 1. The electrical control box 37 is equipped with multiple control buttons 38 and indicator lights 39.

[0037] In practical applications, after the cut U-shaped steel is polished, indicator light 39 turns green, and the staff removes the U-shaped steel from the unloading rack 1.

[0038] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

[0040] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

Claims

1. A U-shaped steel grinding device for photovoltaic bracket production, comprising a feeding rack (1), the feeding rack (1) comprising a frame (2) and feeding rollers (3), wherein the feeding rollers (3) are provided in a plurality of manner and rotatably connected to the frame (2), characterized in that, The unloading rack (1) is provided with a grinding assembly, which includes a grinding part (4) located between two adjacent unloading rollers (3). The grinding part (4) includes an outer grinding component (5) and an inner grinding component (6) inside the outer grinding component (5). The inner grinding component (6) and the outer grinding component (5) are fixedly connected by a connector (7). There is a space for inserting U-shaped steel between the outer grinding component (5) and the inner grinding component (6). A wire brush (8) is connected to the outer grinding component (5), the inner grinding component (6) and the connector (7). The wire brush (8) contacts the U-shaped steel. The unloading rack (1) is provided with a clamping and fixing assembly.

2. The U-shaped steel grinding device for photovoltaic bracket production according to claim 1, characterized in that, The polishing assembly also includes a moving part (9), and a polishing part (4) is disposed on the moving part (9), and the polishing part (4) moves with the moving part (9).

3. The U-shaped steel grinding device for photovoltaic bracket production according to claim 2, characterized in that, The moving part (9) includes a moving base plate (10), a fixed base plate (11) is fixedly connected to the unloading rack (1), a linear slide (12) is installed on the fixed base plate (11), the moving base plate (10) is fixedly connected to the slider of the linear slide (12), the linear slide (12) drives the moving base plate (10) to move left and right, a lifting cylinder (13) is fixedly installed on both sides of the surface of the moving base plate (10), a connecting block (14) is fixedly connected to the telescopic end of the lifting cylinder (13), a lifting box (15) is fixedly connected between the two connecting blocks (14), the lifting cylinder (13) drives the lifting box (15) to rise and fall, a guide groove (16) is provided on the surface of the lifting box (15), a guide slider (17) is slidably connected on the guide groove (16), a fixed block (18) is fixedly connected to the surface of the guide slider (17), and the grinding part (4) is fixedly connected to the surface of the fixed block (18).

4. The U-shaped steel grinding device for photovoltaic bracket production according to claim 3, characterized in that, The grinding part (4) also includes a drive motor (19) fixedly installed in the lifting box (15). A rotating disk (20) is installed on the output end of the drive motor (19). A first pin (21) is fixedly connected to one side of the surface of the rotating disk (20). A second pin (22) is fixedly connected to one side of the bottom surface of the guide slider (17). A crank connecting rod (23) is connected between the first pin (21) and the second pin (22).

5. The U-shaped steel grinding device for photovoltaic bracket production according to claim 1, characterized in that, The clamping and fixing assembly includes a movable slide plate (24), guide grooves (25) are provided on both sides of the unloading rack (1), a movable slider (26) is slidably connected in the guide grooves (25), the movable slide plate (24) and the movable slider (26) are fixedly connected, the movable slide plate (24) is located on both sides of the unloading rack (1), a heightening plate (27) is fixedly connected to the surface of the movable slide plate (24), a clamping cylinder (28) is fixedly connected to the surface of the heightening plate (27), the telescopic end of the clamping cylinder (28) is fixedly connected to the clamping plate (29), the clamping plate (29) is located above the unloading roller (3), there is a gap between the clamping plate (29) and the unloading roller (3), and an anti-slip pad (30) is connected to the clamping plate (29).

6. The U-shaped steel grinding device for photovoltaic bracket production according to claim 3, characterized in that, A right side plate (31) is fixedly connected to one side of the surface of the lifting box (15), and a right laser sensor (32) is installed on the right side plate (31). A left side plate (33) is fixedly connected to the other side of the surface of the lifting box (15), and a left laser sensor (34) is installed on the left side plate (33).

7. The U-shaped steel grinding device for photovoltaic bracket production according to claim 5, characterized in that, A connecting plate (35) is fixedly connected to one side of the movable base plate (10). The two ends of the connecting plate (35) extend out of the unloading rack (1). Supporting rods (36) are fixedly connected to both sides of the surface of the connecting plate (35). The top of the supporting rods (36) is fixedly connected to the movable slide plate (24).

8. The U-shaped steel grinding device for photovoltaic bracket production according to claim 3, characterized in that, The width of the lifting box (15) is smaller than the width of the frame (2), and the lifting box (15) is located below the feeding roller (3).

9. The U-shaped steel grinding device for photovoltaic bracket production according to claim 1, characterized in that, An electrical control box (37) is installed at the end of the unloading rack (1), and multiple control buttons (38) and indicator lights (39) are installed on the electrical control box (37).

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