House building engineering steel bar bending device

Abstract

The application belongs to the technical field of steel bar bending, and discloses a housing construction engineering steel bar bending device, which comprises a rack, a workbench, an opening, a lifting box, a lifting assembly, a supporting part arranged on the lifting box, a pressing part horizontally and slidably arranged on the top surface of the lifting box, a plurality of supporting blocks arranged in vertical stacking, a V-shaped supporting surface arranged on one side of each supporting block close to the pressing part, a plurality of V-shaped supporting surfaces gradually decreasing in angle from top to bottom, a plurality of pressing blocks arranged in vertical stacking, a V-shaped pressing surface arranged on one side of each pressing block close to the supporting block and matched with the corresponding V-shaped supporting surface, and a driving assembly arranged in the lifting box and used for driving the pressing part to slide. The lifting box drives the supporting part and the pressing part to lift, so that the steel bar can be bent at different angles. The steel bar can be bent at multiple small angles to accumulate a large angle required finally, so that the internal damage or fracture of the steel bar caused by single strong pressing bending can be avoided, and the material performance of the steel bar can be effectively protected.

Description

Technical Field

[0001] This utility model relates to the field of steel bar bending technology, and in particular to a steel bar bending device for building construction. Background Technology

[0002] In the building materials trade and logistics sector, steel reinforcement, as a core load-bearing material in building structures, directly impacts construction progress, cost control, and project quality through its supply efficiency and adaptability. To meet diverse applications, steel reinforcement requires bending during construction projects. Currently, building materials trade and logistics companies are optimizing this process through model upgrades, customizing steel reinforcement bending to meet specific project needs. This reduces customer equipment investment and secondary processing costs, enhancing their core competitiveness by increasing service value.

[0003] Chinese utility model patent CN222643089U discloses a rebar bending machine, including a worktable; a support part is provided on the worktable, an extrusion part is slidably provided on the worktable, and a moving mechanism for driving the extrusion part to slide. The rebar is located between the support part and the extrusion part, and the moving mechanism drives the extrusion part to slide to clamp and bend the rebar.

[0004] Regarding the aforementioned technologies, the inventors believe that the following drawbacks exist: the support and extrusion parts of the aforementioned devices have simple and fixed shapes, and can only be designed for single or a few specific bending angle requirements. Furthermore, when bending large-diameter steel bars at large angles, the extrusion part applies a large amount of pressure at once, forcing the steel bar to bend rapidly to the target angle. However, this method easily leads to excessive stress concentration inside the steel bar, resulting in significant damage to the internal crystalline structure and reducing its tensile strength and other mechanical properties. Utility Model Content

[0005] To solve the above problems, this utility model provides a steel bar bending device for building construction.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a steel bar bending device for building construction, comprising a frame, a workbench at the top of the frame, an opening in the middle of the workbench, a lifting box slidably disposed vertically within the frame and slidably cooperating with the opening, a lifting assembly for driving the lifting box to move up and down within the frame, a support portion disposed on the lifting box, an extrusion portion slidably disposed horizontally on the top surface of the lifting box, the support portion comprising a plurality of vertically stacked support blocks, the side of each support block adjacent to the extrusion portion being a V-shaped support surface, the included angle of the plurality of V-shaped support surfaces gradually decreasing from top to bottom, the extrusion portion comprising a plurality of vertically stacked extrusion blocks, the side of each extrusion block adjacent to the support block being a V-shaped extrusion surface cooperating with the corresponding V-shaped support surface, and a driving assembly for driving the extrusion portion to slide within the lifting box.

[0007] By adopting the above technical solution, a frame, worktable, lifting assembly, and drive assembly are set up. The reinforcing bar is placed on the worktable surface, between the support section and the extrusion section. The lifting assembly drives the lifting box to rise and fall, aligning the appropriate support block and extrusion block with the height of the reinforcing bar. Subsequently, the drive assembly moves the extrusion section, and the bending operation of the reinforcing bar is completed through the coordinated action of the support section and the extrusion section. The V-shaped support surface adopts a V-shaped design with its included angle gradually decreasing from top to bottom, which can adapt to reinforcing bars that need to be bent at different angles, greatly expanding the applicability of the device. By lifting the lifting box to drive the support section and extrusion section to rise and fall, it can realize the step-by-step bending of the reinforcing bar. Multiple small-angle bends can be accumulated to the final large angle required, avoiding internal damage or breakage of the reinforcing bar that may be caused by a single strong pressure bend, effectively protecting the material properties of the reinforcing bar.

[0008] Furthermore, a first arc groove is formed on the V-shaped support surface, and a second arc groove is formed on the V-shaped extrusion surface.

[0009] By adopting the above technical solution, setting a first arc groove and a second arc groove, opening the first arc groove on the V-shaped support surface and the second arc groove on the V-shaped extrusion surface, it can better fit the circular outline of the steel bar, increase the contact area between the steel bar and the V-shaped support surface and the V-shaped extrusion surface, improve the stability of clamping, prevent the steel bar from slipping during bending, and ensure bending accuracy.

[0010] Furthermore, a base plate is provided at the bottom of the frame, and three support platforms are provided on the base plate. A mounting platform is provided at the top of the three support platforms. Four sliding holes arranged in a rectangular array are vertically opened on the mounting platform, and sliding rods connected to the bottom surface of the lifting box are slidably installed in the sliding holes.

[0011] By adopting the above technical solution, and setting up an installation platform and sliding rod, the stability of the lifting box's lifting is ensured.

[0012] Furthermore, the lifting assembly includes an electric push rod vertically disposed on the bottom surface of the support platform, the push rod of the electric push rod passing upward through the support platform and connecting to the bottom surface of the lifting box.

[0013] By adopting the above technical solution, the electric push rod drives the lifting box to rise and fall.

[0014] Furthermore, the top surface of the lifting box has two spaced-apart strip holes, and a slider connected to the bottom of the extrusion section is slidably disposed in the strip holes.

[0015] By adopting the above technical solution, a strip hole and a slider are set. The cooperation between the strip hole and the slider provides guidance for the sliding of the extrusion part, ensuring that the extrusion part slides stably in the horizontal direction, so that the extrusion block can accurately cooperate with the support block, and ensuring the stability and accuracy of the steel bar bending process.

[0016] Furthermore, the drive assembly includes a hydraulic cylinder horizontally disposed on the top surface inside the lifting box, and a sliding seat is disposed at the lower ends of the two sliders, with the piston rod of the hydraulic cylinder connected to the sliding seat.

[0017] By adopting the above technical solution, the hydraulic cylinder drives the sliding seat to slide, thereby moving the slider and the extrusion section.

[0018] Furthermore, two guide rods are spaced apart inside the lifting box, and a guide hole is provided on the sliding seat, with the guide hole slidably connected to the corresponding guide rod.

[0019] By adopting the above technical solution, the stability and guidance of the sliding seat during sliding are further enhanced.

[0020] In summary, this utility model has the following beneficial effects: The present application includes a frame, a worktable, a lifting assembly, and a driving assembly. The reinforcing bar is placed on the worktable surface, between the support section and the extrusion section. The lifting assembly drives the lifting box to rise and fall, aligning the appropriate support block and extrusion block with the height of the reinforcing bar. Subsequently, the driving assembly moves the extrusion section, completing the reinforcing bar bending operation through the coordinated action of the support section and the extrusion section. The V-shaped support surface adopts a V-shaped design with its included angle gradually decreasing from top to bottom, adapting to reinforcing bars requiring bending at different angles, significantly expanding the applicability of the device. By lifting the lifting box to drive the support section and extrusion section to rise and fall, it can achieve step-by-step bending of the reinforcing bar, accumulating multiple small-angle bends to reach the final required large angle, avoiding internal damage or breakage of the reinforcing bar that may be caused by a single strong-pressure bend, effectively protecting the material properties of the reinforcing bar. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a structural schematic diagram of the mounting platform and lifting box according to an embodiment of this utility model; Figure 3 This is a schematic diagram of the lifting box according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the internal structure of the lifting box according to an embodiment of the present invention; Figure 5 This is a structural schematic diagram of the lifting box, support part, and extrusion part in an embodiment of this utility model.

[0022] In the diagram: 10. Frame; 11. Workbench; 12. Opening; 20. Lifting box; 21. Strip hole; 22. Slider; 23. Guide rod; 30. Lifting assembly; 31. Electric push rod; 40. Support part; 41. Support block; 42. V-shaped support surface; 43. First arc groove; 44. Extrusion part; 45. Extrusion block; 46. V-shaped extrusion surface; 47. Second arc groove; 50. Drive assembly; 51. Hydraulic cylinder; 52. Sliding seat; 60. Base plate; 61. Support platform; 62. Mounting platform; 63. Slide rod. Detailed Implementation

[0023] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0024] like Figure 1-5As shown in the figure, this application discloses a steel bar bending device for building construction, including a frame 10, a workbench 11, a lifting assembly 30, and a drive assembly 50. The workbench 11 is located on top of the frame 10, and an opening 12 is provided in the middle of the workbench 11. A lifting box 20 is vertically slidably disposed inside the frame 10 and slidably engaged with the opening 12. The lifting assembly 30 is disposed inside the frame 10 and is used to drive the lifting box 20 to lift. A support part 40 is provided on the lifting box 20, and a pressing part 44 is horizontally slidably disposed on the top surface of the lifting box 20. The support part 40 includes a plurality of vertically stacked support blocks 41, which are fixedly connected in sequence. The side of the support block 41 adjacent to the pressing part 44 is a V-shaped support surface 42, and the included angle of the plurality of V-shaped support surfaces 42 gradually decreases from top to bottom. The extrusion section 44 includes several vertically stacked extrusion blocks 45, which are sequentially and fixedly connected. The side of each extrusion block 45 adjacent to the support block 41 has a V-shaped extrusion surface 46 that mates with a corresponding V-shaped support surface 42. A drive assembly 50 is housed within the lifting box 20 and is used to drive the extrusion section 44 to slide. The reinforcing bar is placed on the workbench 11, positioned between the support section 40 and the extrusion section 44. The lifting assembly 30 drives the lifting box 20 to rise and fall, aligning the matching support block 41 and extrusion block 45 with the height of the reinforcing bar. Subsequently, the drive assembly 50 moves the extrusion section 44, completing the bending operation of the reinforcing bar through the coordinated action of the support section 40 and the extrusion section 44. The V-shaped support surface 42 adopts a V-shaped design with its included angle gradually decreasing from top to bottom, adapting to reinforcing bars requiring bending at different angles and significantly expanding the applicability of the device. The lifting box 20 raises and lowers the support section 40 and the extrusion section 44, enabling the gradual bending of the reinforcing steel. Multiple small-angle bends accumulate to achieve the desired large angle, avoiding internal damage or breakage that might occur with a single strong-pressure bend, effectively protecting the material properties of the reinforcing steel. The specific quantity and shape of the support block 41 and extrusion block 45 can be customized according to common bending angles or specific requirements.

[0025] The V-shaped support surface 42 has a first arc groove 43, and the V-shaped extrusion surface 46 has a second arc groove 47. This allows for a better fit with the circular contour of the reinforcing bar, increases the contact area between the reinforcing bar and the V-shaped support surface 42 and the V-shaped extrusion surface 46, improves the stability of clamping, prevents the reinforcing bar from slipping during bending, and ensures bending accuracy.

[0026] Specifically, the frame 10 includes four support columns and a top frame connecting the tops of the four support columns. The worktable 11 is mounted on the top frame. The frame 10 uses a structure of four support columns and a top frame to ensure overall stability and structural strength. A base plate 60 is provided at the bottom of the frame 10, and the base plate 60 is connected to all four support columns. Three support platforms 61 are provided on the base plate 60, and a mounting platform 62 is provided at the top of the three support platforms 61. Four sliding holes arranged in a rectangular array are vertically opened on the mounting platform 62, and sliding rods 63 connected to the bottom surface of the lifting box 20 are slidably installed in the sliding holes. The base plate 60 and the support platforms 61 provide stable support for the mounting platform 62, and the cooperation of the four sliding holes and the sliding rods 63 guides the lifting movement of the lifting box 20, ensuring that the lifting box 20 is more stable when sliding vertically.

[0027] In configuration, the lifting assembly 30 includes an electric push rod 31 vertically mounted on the bottom surface of the support platform 61. The push rod of the electric push rod 31 passes upward through the support platform 61 and connects to the bottom surface of the lifting box 20. The electric push rod 31 drives the lifting box 20 to rise and fall. The electric push rod 31 provides stable power for the lifting of the lifting box 20, and it is easy to control, allowing for precise control of the lifting height of the lifting box 20 to meet the height requirements of different bending operations, thereby improving the automation level and ease of operation of the device.

[0028] In the specific configuration, the top surface of the lifting box 20 has two spaced-apart strip holes 21. A slider 22, connected to the bottom of the extrusion section 44, is slidably mounted within each strip hole 21. The cooperation between the strip hole 21 and the slider 22 provides guidance for the sliding of the extrusion section 44, ensuring its stable horizontal sliding and allowing the extrusion block 45 to accurately engage with the support block 41, thus guaranteeing the stability and accuracy of the rebar bending process. The drive assembly 50 includes a hydraulic cylinder 51 horizontally mounted on the top surface inside the lifting box 20. A sliding seat 52 is shared at the lower end of the two sliders 22, and the piston rod of the hydraulic cylinder 51 is connected to the sliding seat 52. The hydraulic cylinder 51 drives the sliding seat 52 to slide, thereby moving the sliders 22 and the extrusion section 44. The hydraulic cylinder 51 provides a large driving force for the sliding of the extrusion section 44, meeting the pressure requirements for rebar bending. The sliding seat 52 ensures synchronous movement of the two sliders 22, guaranteeing smooth overall movement of the extrusion section 44 and improving the reliability and consistency of the bending operation. Two guide rods 23 are spaced apart inside the lifting box 20. The length direction of the guide rods 23 is consistent with the length direction of the strip hole 21. A guide hole is provided on the sliding seat 52, and the guide hole is slidably connected to the corresponding guide rod 23. This further enhances the stability and guidance of the sliding seat 52 during sliding. It prevents the sliding seat 52 from deviating during movement, ensures the movement accuracy of the extrusion part 44, and thus guarantees the quality of the steel bar bending.

[0029] A control cabinet is installed on the frame 10, and a controller is installed inside the control cabinet. Several control buttons are installed on the control cabinet. The controller is electrically connected to the control buttons, hydraulic cylinder 51, and electric push rod 31. The controller receives signals from the control buttons to control the hydraulic cylinder 51 and electric push rod 31.

[0030] The working principle of the steel bar bending device for building construction in this embodiment is as follows: First, the steel bar is placed on the workbench 11 between the support part 40 and the extrusion part 44. Then, the electric push rod 31 drives the lifting box 20 to slide vertically, adjusting the height of the lifting box 20 so that a set of support blocks 41 and extrusion blocks 45 on the support part 40 and the extrusion part 44, which are adapted to the bending angle, are aligned with the height of the steel bar. After positioning, the hydraulic cylinder 51 pushes the sliding seat 52 to slide along the guide rod 23, causing the slider 22 connected to the sliding seat 52 to move synchronously, thereby making the extrusion part 44 slide horizontally. At this time, the first arc groove 43 on the V-shaped support surface 42 of the support part 40 and the second arc groove 47 on the V-shaped extrusion surface 46 of the extrusion part 44 are closely fitted with the circular outline of the steel bar. The steel bar is bent by the joint extrusion of the two. Moreover, the height of the lifting box 20 can be adjusted multiple times and the hydraulic cylinder 51 can be extruded at small angles multiple times, accumulating the small angle bends into the required large angle. This not only adapts to different bending requirements but also avoids damage to the steel bar by a single strong pressure.

[0031] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A steel bar bending device for building construction, characterized in that: Includes a frame (10), a workbench (11) is provided on the top of the frame (10), an opening (12) is provided in the middle of the workbench (11), a lifting box (20) is vertically slidably arranged inside the frame (10) and slidably engaged with the opening (12), a lifting assembly (30) is provided inside the frame (10) to drive the lifting box (20) to rise and fall, a support part (40) is provided on the lifting box (20), and a pressing part (44) is horizontally slidably arranged on the top surface of the lifting box (20), the support part (40) includes a vertical A plurality of support blocks (41) are stacked together. The side of the support block (41) adjacent to the extrusion part (44) is a V-shaped support surface (42). The included angle of the plurality of V-shaped support surfaces (42) gradually decreases from top to bottom. The extrusion part (44) includes a plurality of extrusion blocks (45) stacked vertically. The side of the extrusion block (45) adjacent to the support block (41) is a V-shaped extrusion surface (46) that cooperates with the corresponding V-shaped support surface (42). The lifting box (20) is provided with a driving assembly (50) for driving the extrusion part (44) to slide.

2. The steel bar bending device for building construction according to claim 1, characterized in that: The V-shaped support surface (42) is provided with a first arc groove (43), and the V-shaped extrusion surface (46) is provided with a second arc groove (47).

3. The steel bar bending device for building construction according to claim 1, characterized in that: The frame (10) is provided with a base plate (60) at the bottom. Three support platforms (61) are provided on the base plate (60). The top of the three support platforms (61) is provided with a mounting platform (62). Four sliding holes arranged in a rectangular array are vertically opened on the mounting platform (62). A sliding rod (63) connected to the bottom surface of the lifting box (20) is slidably installed in the sliding holes.

4. A steel bar bending device for building construction according to claim 3, characterized in that: The lifting assembly (30) includes an electric push rod (31) vertically arranged on the bottom surface of the support platform (61), the push rod of the electric push rod (31) passes upward through the support platform (61) and is connected to the bottom surface of the lifting box (20).

5. A steel bar bending device for building construction according to claim 1, characterized in that: The top surface of the lifting box (20) has two spaced strip holes (21), and a slider (22) connected to the bottom of the extrusion part (44) is slidably disposed in the strip holes (21).

6. A steel bar bending device for building construction according to claim 5, characterized in that: The drive assembly (50) includes a hydraulic cylinder (51) horizontally disposed on the top surface inside the lifting box (20), and a sliding seat (52) is provided at the lower ends of the two sliders (22), and the piston rod of the hydraulic cylinder (51) is connected to the sliding seat (52).

7. A steel bar bending device for building construction according to claim 6, characterized in that: The lifting box (20) is provided with two guide rods (23) spaced apart. The sliding seat (52) is provided with guide holes, and the guide holes are slidably connected to the corresponding guide rods (23).

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