A reinforcing bar end polishing device

Abstract

The utility model belongs to reinforcing steel bar polishing device technical field, and disclose a reinforcing steel bar end polishing device, including backplate, the left and right sides of backplate positive face all swing to be connected with moving block, the front end fixed mounting of moving block outside has drive motor. The utility model discloses through setting up steel brush, round plate, arc slot and connecting block, when the end of reinforcing steel bar contacts the outer surface of polishing disc, at this time through starting power motor, makes the round axle drive round plate and rotates, thereby makes the inner surface of arc slot extrusion and promotes the outer surface of connecting block, makes connecting block drive L type board and moves along the radial of the outer surface of connecting rod, makes steel brush contact the outer surface near the end of reinforcing steel bar, and in the rotation of round shell and polishing disc synchronous rotation, thereby can carry out rust removal treatment to the outer surface near the end while polishing the end of reinforcing steel bar, has facilitated the use of operating personnel.

Description

Technical Field

[0001] This utility model belongs to the technical field of rebar grinding devices, specifically a rebar end grinding device. Background Technology

[0002] Steel bars are a crucial structural material in construction engineering. They are made of high-strength carbon steel through cold working or heat treatment and have excellent tensile and compressive strength. Their surface usually has ribs or threads, which can significantly enhance the bond strength with concrete, forming a reinforced concrete composite structure to jointly bear the load of the building.

[0003] After being cut, the ends of reinforcing bars are often uneven, requiring grinding with a channel grinding device. While existing grinding devices can smooth burrs and protrusions using grinding wheels and other components, their grinding range is usually limited to the end area. They cannot simultaneously remove oxide scale and rust from the outer surface near the end. This means that when the sleeve is fitted onto the reinforcing bar, the rust layer hinders a tight fit between the sleeve and the reinforcing bar, reducing friction and grip, affecting the overall structural strength of the connection. Furthermore, the gaps created by rust can trap moisture, dust, and other impurities, accelerating secondary corrosion at the contact point between the reinforcing bar and the sleeve. This can lead to loosening of the sleeve and failure of the connection, posing potential risks to construction quality and structural safety. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned problems. This invention provides a steel bar end grinding device, which has the advantage of simultaneously grinding and removing rust.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rebar end grinding device, comprising a back plate, with movable blocks movably connected to both the left and right sides of the front of the back plate, a drive motor fixedly installed at the front end of the outer side of the movable blocks, a rotating shaft fixedly connected to the other end of the output shaft of the drive motor, the outer surface of the rotating shaft movably sleeved with the inner wall of the movable blocks, a circular shell fixedly connected to the inner end of the rotating shaft, a connecting rod fixedly installed inside the circular shell, a circular block fixedly connected between the connecting rods, a grinding disc fixedly installed on the inner side of the circular block, an L-shaped plate movably sleeved on the outer surface of the connecting rod, a steel brush fixedly connected to one end of the L-shaped plate, a connecting block fixedly connected to the other end of the L-shaped plate, a circular plate movably sleeved inside the circular shell, an arc-shaped groove formed inside the circular plate, the inner surface of the arc-shaped groove movably connected to the outer surface of the connecting block, a power motor fixedly installed on the inner surface of the circular shell, a circular shaft fixedly connected to the other end of the output shaft of the power motor, and the outer surface of the circular shaft fixedly sleeved with the inner wall of the circular plate.

[0006] As a preferred embodiment of this utility model, a battery module is fixedly sleeved on the outer side of the circular shell, and a base plate is fixedly connected to the bottom of the front side of the back plate.

[0007] As a preferred embodiment of this utility model, a first motor is fixedly installed on the right side of the back plate, and a double-threaded rod is fixedly connected to the other end of the output shaft of the first motor. The outer surface of the double-threaded rod is threadedly engaged with the inner wall of the moving block, and the outer surface of the double-threaded rod is movably engaged with the inner wall of the back plate.

[0008] As a preferred embodiment of this utility model, a vertical plate is fixedly installed on the top of the base plate, and an upper clamping block and a lower clamping block are movably connected to the top and bottom of the front of the vertical plate, respectively.

[0009] As a preferred embodiment of this utility model, a mounting bracket is fixedly installed on the back of the vertical plate, and a vertical rod is fixedly installed inside the mounting bracket.

[0010] As a preferred embodiment of this utility model, the top and bottom of the outer surface of the vertical rod are respectively movably sleeved with connecting plates. There are two connecting plates, and the front ends of the two connecting plates penetrate the vertical plate and are respectively fixedly connected to the rear ends of the upper clamping block and the lower clamping block.

[0011] As a preferred embodiment of this utility model, a second motor is fixedly mounted on the back of the mounting bracket, and a movable shaft is fixedly connected to the other end of the output shaft of the second motor. The front end of the movable shaft passes through the mounting bracket and a rotating rod is fixedly sleeved on its outer surface.

[0012] As a preferred embodiment of this invention, the top and bottom ends of the rotating rod are both hinged to hinge rods, and the other end of the hinge rod is hinged to the back of the connecting plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, by setting up a steel brush, a circular plate, an arc-shaped groove, and a connecting block, allows the steel brush to contact the outer surface of the grinding disc when the end of the rebar contacts it. At this time, the power motor is started, causing the circular shaft to rotate and the circular plate to rotate. This causes the inner surface of the arc-shaped groove to press and push the outer surface of the connecting block, which in turn causes the connecting block to drive the L-shaped plate to move radially along the outer surface of the connecting rod. This allows the steel brush to contact the outer surface near the end of the rebar. Furthermore, the steel brush rotates synchronously with the grinding disc while the circular shell rotates, thus enabling rust removal on the outer surface near the end of the rebar while grinding it. This makes it convenient for operators to use.

[0014] 2. This utility model, by setting up an upper clamping block, a lower clamping block, a rotating rod, and a hinge rod, allows the operator to place the reinforcing bar inside the lower clamping block. By starting the second motor, the movable shaft drives the rotating rod to rotate, which in turn causes the hinge rod to pull the two connecting plates to move towards each other under the limiting action of the vertical rod. This, in turn, causes the upper and lower clamping blocks to move towards each other, thereby lifting the reinforcing bar by the lower clamping block and aligning the axis of the reinforcing bar with the axis of the grinding disc. At the same time, the upper and lower clamping blocks can clamp and fix reinforcing bars of different diameters. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the circular shell of this utility model; Figure 3 This is a cross-sectional view of the circular shell of this utility model; Figure 4 This is a schematic diagram of the arc-shaped groove of this utility model; Figure 5 This is a schematic diagram of the vertical plate of this utility model; Figure 6 This is a cross-sectional structural diagram of the vertical plate of this utility model; Figure 7 This is a cross-sectional view of the back of the vertical plate of this utility model.

[0016] In the diagram: 1. Back plate; 2. Moving block; 3. Drive motor; 4. Rotating shaft; 5. Round shell; 6. Connecting rod; 7. Round block; 8. Grinding disc; 9. L-shaped plate; 10. Steel brush; 11. Power motor; 12. Round shaft; 13. Round plate; 14. Arc groove; 15. Connecting block; 16. Battery module; 17. Base plate; 18. First motor; 19. Double threaded rod; 20. Vertical plate; 21. Upper clamping block; 22. Lower clamping block; 23. Vertical rod; 24. Connecting plate; 25. Mounting bracket; 26. Second motor; 27. Movable shaft; 28. Rotating rod; 29. ​​Hinge rod. Detailed Implementation

[0017] 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.

[0018] like Figures 1 to 7As shown, this utility model provides a steel bar end grinding device, including a back plate 1. Movable blocks 2 are movably connected to both the left and right sides of the front of the back plate 1. A drive motor 3 is fixedly installed at the front end of the outer side of the movable blocks 2. A rotating shaft 4 is fixedly connected to the other end of the output shaft of the drive motor 3. The outer surface of the rotating shaft 4 is movably sleeved with the inner wall of the movable blocks 2. A circular shell 5 is fixedly connected to the inner end of the rotating shaft 4. A connecting rod 6 is fixedly installed inside the circular shell 5. A circular block 7 is fixedly connected between the connecting rods 6. A grinding disc 8 is fixedly installed on the inner side of the circular block 7. An L-shaped plate 9 is movably sleeved on the outer surface of the connecting rod 6. A steel brush 10 is fixedly connected to one end of the L-shaped plate 9, and a connecting block 15 is fixedly connected to the other end of the L-shaped plate 9. A circular plate 13 is movably sleeved inside the circular shell 5. An arc-shaped groove 14 is opened inside the circular plate 13. The inner surface of the arc-shaped groove 14 is movably connected to the outer surface of the connecting block 15. A power motor 11 is fixedly installed on the inner surface of the circular shell 5. A circular shaft 12 is fixedly connected to the other end of the output shaft of the power motor 11. The outer surface of the circular shaft 12 is fixedly sleeved with the inner wall of the circular plate 13.

[0019] When grinding the ends of the reinforcing bars, the power motor 11 is started, causing the circular shaft 12 to rotate the circular plate 13. This causes the inner surface of the arc groove 14 to press and push the outer surface of the connecting block 15. The connecting block 15 then moves the L-shaped plate 9 toward the grinding disc 8, so that the steel brush 10 contacts the outer surface of the reinforcing bar. At this time, the drive motor 3 is started, causing the rotating shaft 4 to rotate the circular shell 5. This causes the steel brush 10 and the grinding disc 8 to rotate, so that the grinding disc 8 grinds the ends of the reinforcing bars, while the steel brush 10 removes rust from the outer surface near the ends of the reinforcing bars.

[0020] Among them, the battery module 16 is fixedly sleeved on the outer side of the round shell 5, and the bottom plate 17 is fixedly connected to the bottom of the front of the back plate 1.

[0021] By setting up the battery module 16, the battery module 16 can provide the power required for the operation of the motor 11.

[0022] The first motor 18 is fixedly installed on the right side of the back plate 1. The other end of the output shaft of the first motor 18 is fixedly connected to a double threaded rod 19. The outer surface of the double threaded rod 19 is threadedly connected to the inner wall of the moving block 2, and the outer surface of the double threaded rod 19 is movably connected to the inner wall of the back plate 1.

[0023] The operator starts the first motor 18, which causes the double threaded rod 19 to drive the two moving blocks 2 to move in opposite directions, thereby enabling the grinding of the ends of steel bars of different lengths.

[0024] The top of the base plate 17 is fixedly installed with a vertical plate 20, and the top and bottom of the front of the vertical plate 20 are respectively movably connected with an upper clamping block 21 and a lower clamping block 22.

[0025] By setting up an upper clamping block 21 and a lower clamping block 22, the upper clamping block 21 and the lower clamping block 22 can cooperate to clamp and fix steel bars of different diameters.

[0026] The vertical plate 20 has a mounting bracket 25 fixedly installed on its back, and a vertical rod 23 is fixedly installed inside the mounting bracket 25.

[0027] By setting up the mounting bracket 25, the mounting bracket 25 can play the role of fixing the vertical rod 23.

[0028] Among them, the top and bottom of the outer surface of the vertical rod 23 are respectively movably sleeved with connecting plates 24. There are two connecting plates 24. The front ends of the two connecting plates 24 pass through the vertical plate 20 and are fixedly connected to the rear ends of the upper clamping block 21 and the lower clamping block 22 respectively.

[0029] By setting the vertical rod 23, the connecting plate 24 can be more stable when moving up and down, thereby making the upper clamping block 21 and the lower clamping block 22 clamp and fix the steel bar more stably.

[0030] The second motor 26 is fixedly mounted on the back of the mounting bracket 25. The other end of the output shaft of the second motor 26 is fixedly connected to a movable shaft 27. The front end of the movable shaft 27 passes through the mounting bracket 25 and a rotating rod 28 is fixedly sleeved on its outer surface.

[0031] When the operator starts the second motor 26, the movable shaft 27 will drive the rotating rod 28 to rotate.

[0032] The top and bottom ends of the rotating rod 28 are both hinged to hinge rods 29, and the other end of the hinge rod 29 is hinged to the back of the connecting plate 24.

[0033] When the rotating rod 28 rotates, it will cause the hinge rod 29 to move the connecting plate 24, causing the two connecting plates 24 to move towards each other along the outer surface of the vertical rod 23.

[0034] Working principle and usage process of this utility model: The operator places the steel bar to be ground inside the lower clamping block 22, and then starts the second motor 26, which causes the movable shaft 27 to drive the rotating rod 28 to rotate. This, in turn, causes the two connecting plates 24 to move towards each other under the limiting action of the vertical rod 23 via the hinge rod 29. This causes the upper clamping block 21 and the lower clamping block 22 to move towards each other. When the lower clamping block 22 moves, it will lift the steel bar, thereby aligning the axis of the steel bar with the axis of the grinding disc 8. The upper clamping block 21 and the lower clamping block 22 can clamp and fix steel bars of different diameters.

[0035] After the reinforcing bars are clamped and fixed, the first motor 18 is started, causing the double threaded rod 19 to drive the two moving blocks 2 to move towards each other, so that the grinding disc 8 contacts the end of the reinforcing bar. At this time, the power motor 11 is started, which will cause the round shaft 12 to drive the round plate 13 to rotate, so that the inner surface of the arc groove 14 presses and pushes the outer surface of the connecting block 15. Then, the connecting block 15 drives the L-shaped plate 9 to move under the limiting action of the connecting rod 6, so that the steel brush 10 moves towards the reinforcing bar and can contact the outer surface of the reinforcing bar. Then, the drive motor 3 is started, causing the rotating shaft 4 to drive the round shell 5 to rotate, so that the steel brush 10 and the grinding disc 8 can rotate. The grinding disc 8 will grind the end of the reinforcing bar, while the steel brush 10 can remove rust from the outer surface near the end of the reinforcing bar.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel bar end grinding device, comprising a back plate (1), characterized in that: Movable blocks (2) are movably connected to both the left and right sides of the front of the back plate (1). A drive motor (3) is fixedly installed at the front end of the outer side of the movable block (2). A rotating shaft (4) is fixedly connected to the other end of the output shaft of the drive motor (3). The outer surface of the rotating shaft (4) is movably sleeved with the inner wall of the movable block (2). A circular shell (5) is fixedly connected to the inner end of the rotating shaft (4). A connecting rod (6) is fixedly installed inside the circular shell (5). A circular block (7) is fixedly connected between the connecting rods (6). A grinding disc (8) is fixedly installed on the inner side of the circular block (7). A grinding disc (8) is movably sleeved on the outer surface of the connecting rod (6). L-shaped plate (9), one end of which is fixedly connected to a steel brush (10), and the other end of which is fixedly connected to a connecting block (15). A circular plate (13) is movably sleeved inside the circular shell (5). An arc groove (14) is opened inside the circular plate (13). The inner surface of the arc groove (14) is movably connected to the outer surface of the connecting block (15). A power motor (11) is fixedly installed on the inner surface of the circular shell (5). A circular shaft (12) is fixedly connected to the other end of the output shaft of the power motor (11). The outer surface of the circular shaft (12) is fixedly sleeved to the inner wall of the circular plate (13).

2. The rebar end grinding device according to claim 1, characterized in that: A battery module (16) is fixedly sleeved on the outside of the round shell (5), and a bottom plate (17) is fixedly connected to the bottom of the front of the back plate (1).

3. The rebar end grinding device according to claim 1, characterized in that: A first motor (18) is fixedly installed on the right side of the back plate (1). A double threaded rod (19) is fixedly connected to the other end of the output shaft of the first motor (18). The outer surface of the double threaded rod (19) is threadedly connected to the inner wall of the moving block (2). The outer surface of the double threaded rod (19) is movably connected to the inner wall of the back plate (1).

4. A steel bar end grinding device according to claim 2, characterized in that: A vertical plate (20) is fixedly installed on the top of the base plate (17), and an upper clamping block (21) and a lower clamping block (22) are movably connected to the top and bottom of the front of the vertical plate (20).

5. A steel bar end grinding device according to claim 4, characterized in that: A mounting bracket (25) is fixedly installed on the back of the vertical plate (20), and a vertical rod (23) is fixedly installed inside the mounting bracket (25).

6. A steel bar end grinding device according to claim 5, characterized in that: The top and bottom of the outer surface of the vertical rod (23) are respectively movably sleeved with connecting plates (24). There are two connecting plates (24). The front ends of the two connecting plates (24) pass through the vertical plate (20) and are fixedly connected to the rear ends of the upper clamping block (21) and the lower clamping block (22) respectively.

7. A steel bar end grinding device according to claim 5, characterized in that: A second motor (26) is fixedly mounted on the back of the mounting bracket (25). The other end of the output shaft of the second motor (26) is fixedly connected to a movable shaft (27). The front end of the movable shaft (27) passes through the mounting bracket (25) and a rotating rod (28) is fixedly sleeved on its outer surface.

8. A steel bar end grinding device according to claim 7, characterized in that: The top and bottom ends of the rotating rod (28) are both hinged with hinge rods (29), and the other end of the hinge rods (29) is hinged to the back of the connecting plate (24).

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