Reinforcing bar bender

Abstract

The utility model relates to the technical field of steel bar processing, especially a steel bar bending machine, which not only facilitates continuous bending processing of steel bars, saves the trouble of frequent disassembly and assembly of staff, improves work efficiency, but also facilitates the discharge of the already bent steel bars, avoids the steel bar from being stuck in the device, and comprises a control mechanism, a conveying mechanism, a moving mechanism, a bending mechanism, two sets of pushing mechanisms and a discharging mechanism, the conveying mechanism is installed on the control mechanism and conveys the steel bars, the moving mechanism is installed on the control mechanism and drives the bending mechanism to move, the bending mechanism is installed on the moving mechanism and bends the steel bars, the two sets of pushing mechanisms are both installed on the control mechanism and push the steel bars out, and the discharging mechanism is installed on the control mechanism and drives the steel bars to be discharged.

Description

Technical Field

[0001] This utility model relates to the technical field of steel bar processing, and in particular to a steel bar bending machine. Background Technology

[0002] On construction sites, steel bars often need to be bent, so steel bar bending machines are commonly used equipment on construction sites. When bending steel bars, straight steel bars are placed between the uprights on the turntable of the steel bar bending machine, and the turntable drives the uprights to rotate, thereby bending the steel bars.

[0003] Existing rebar bending machines, such as the one disclosed in utility model patent application number 201921147654.1, mainly include two sets of roller assemblies disposed on the bottom surface of the rebar bending machine body. The roller assembly includes two mounting plates fixedly connected to the bottom surface of the rebar bending machine body and arranged in parallel and spaced apart, a rotating shaft fixedly connected to the two mounting plates at both ends, and rotating wheels rotatably connected to the rotating shafts. In use, when the operator rotates the bidirectional threaded screw, it drives the drive block threaded to the positive thread section and the negative thread section of the bidirectional threaded screw to move, so that the moving rings corresponding to the two sets of roller assemblies move simultaneously.

[0004] However, existing rebar bending machines can usually only complete the bending operation at one bending angle at a time. When it is necessary to bend the rebar at different angles multiple times, workers need to operate it multiple times, resulting in low work efficiency. Moreover, the bent rebar is easy to get stuck in the device, making it difficult for workers to remove it. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a steel bar bending machine that not only facilitates continuous bending of steel bars, saving workers the trouble of frequent disassembly and assembly and improving work efficiency, but also facilitates the discharge of bent steel bars and avoids steel bars getting stuck in the device.

[0006] This utility model discloses a rebar bending machine, including a control mechanism; it also includes a conveying mechanism, a moving mechanism, a bending mechanism, two sets of pushing mechanisms, and a discharging mechanism. The conveying mechanism is installed on the control mechanism and conveys the rebar. The moving mechanism is installed on the control mechanism and drives the bending mechanism to move. The bending mechanism is installed on the moving mechanism and bends the rebar. Both sets of pushing mechanisms are installed on the control mechanism and push the rebar out. The discharging mechanism is installed on the control mechanism and drives the rebar to discharge. The operator inserts the rebar into the conveying mechanism, which drives the rebar forward. The bending mechanism bends the rebar. When it is necessary to bend the rebar in the opposite direction again, the moving mechanism is activated to drive the bending mechanism to retreat. The conveying mechanism continues to convey the rebar forward, and the moving mechanism drives the bending mechanism to reset. The bending mechanism bends the rebar again. When the entire rebar is completely processed, the two sets of pushing mechanisms are activated to push the rebar onto the discharging mechanism, which then discharges the rebar.

[0007] Preferably, the control mechanism includes a base, a working plate, a protective plate, and a controller. The bottom end of the base is connected to the ground, the bottom end of the working plate is connected to the top end of the base, the bottom end of the protective plate is connected to the top end of the base, and the controller is installed on the protective plate. The worker controls the conveying distance and bending angle of the steel bars through the controller. After the two sets of pushing mechanisms push out the bent steel bars, the protective plate is set to prevent the steel bars from injuring the workers.

[0008] Preferably, the conveying mechanism includes a support roller, a top plate, two sets of hydraulic cylinders, a movable frame, and guide rollers. The support roller is rotatably mounted on the working plate, the top plate is mounted on the working plate, both sets of hydraulic cylinders are mounted on the top plate, the top of the movable frame is connected to the bottom of the two sets of hydraulic cylinders, and the guide rollers are rotatably mounted on the movable frame. The worker inserts the steel bar between the support roller and the guide roller, and the two sets of hydraulic cylinders drive the movable frame to rise and fall, which facilitates the clamping of steel bars of different diameters. The controller controls the support roller to drive the steel bar forward.

[0009] Preferably, the moving mechanism includes a positioning box, a slider, a rack, a stepper motor, a first reducer, and a first gear. A positioning slot is formed on the work plate. The positioning box is mounted on the work plate and communicates with the inside of the positioning slot. The slider is slidably mounted in the positioning slot. The rack is mounted on the slider. The stepper motor is mounted on the work plate. The output end of the stepper motor is connected to the input end of the first reducer. The output end of the first reducer is connected to the input end of the first gear. The first gear meshes with the rack for transmission. When the stepper motor is started, it drives the first gear to rotate through the first reducer. The first gear meshes with the rack for transmission, and the rack drives the slider to move back and forth within the positioning slot.

[0010] Preferably, the bending mechanism includes a disc, a turntable, a central column, a bending column, a servo motor, a second reducer, and two sets of second gears. The disc is mounted on a slider, the turntable is rotatably mounted on the disc, the central column is mounted on the turntable, the bending column is mounted on the turntable, and the servo motor is mounted on the slider. The output end of the servo motor is connected to the input end of the second reducer, the output end of the second reducer is connected to the input end of the first set of second gears, and the second set of second gears is connected to the power input end of the turntable. The two sets of second gears mesh and transmit power. When the reinforcing bar passes between the central column and the bending column, the servo motor is started. The servo motor drives the first set of second gears to rotate through the second reducer. The two sets of second gears mesh and transmit power, thereby driving the turntable to rotate. The turntable drives the bending column to rotate, bending the reinforcing bar.

[0011] Preferably, the device further includes thermally spraying tungsten carbide onto the surfaces of the central column and the bent column; thermally spraying a tungsten carbide cermet coating onto the surfaces of the central column and the bent column improves the surface hardness of the central column and the bent column, enhances their wear resistance, and extends the service life of the device.

[0012] Preferably, the pushing mechanism includes an electric cylinder and a push plate. The electric cylinder is mounted on the working plate, and the push plate is mounted on the electric cylinder. The two sets of pushing mechanisms are respectively mounted on the front and rear sides of the disc. When the electric cylinder is started, the electric cylinder pushes the push plate, and the two sets of push plates push the steel bars synchronously, pushing the steel bars out from the conveying mechanism and the bending mechanism.

[0013] Preferably, the feeding mechanism includes a conveyor belt, a support plate, multiple sets of shock-absorbing springs and buffer pads. The conveyor belt is mounted on the working plate, the support plate is mounted on the working plate, and multiple sets of shock-absorbing springs are mounted on the support plate. The bottom end of the buffer pad is connected to the top end of the multiple sets of shock-absorbing springs. The bent steel bar falls onto the conveyor belt. By setting multiple sets of shock-absorbing springs and buffer pads, the impact force of the steel bar is reduced, the service life of the device is extended, and the conveyor belt drives the steel bar to be discharged.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: the worker inserts the steel bar into the conveying mechanism, the conveying mechanism drives the steel bar forward, the bending mechanism bends the steel bar, when it is necessary to bend the steel bar in the opposite direction again, the moving mechanism is activated to drive the bending mechanism to retreat, the conveying mechanism continues to convey the steel bar forward, the moving mechanism drives the bending mechanism to reset, the bending mechanism bends the steel bar again, when the entire steel bar is completely processed, the two sets of pushing mechanisms are activated to push the steel bar to fall onto the unloading mechanism, the unloading mechanism drives the steel bar to be unloaded. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the isometric structure of this utility model; Figure 2 This is an isometric structural diagram of the control mechanism of this utility model; Figure 3This is a partially enlarged isometric structural diagram of the conveying mechanism of this utility model; Figure 4 This is a partially enlarged isometric structural diagram of the moving mechanism of this utility model; Figure 5 This is a partially enlarged cross-sectional isometric structural schematic diagram of the bending mechanism of this utility model; Figure 6 This is a partially enlarged cross-sectional isometric structural diagram of the feeding mechanism and unloading mechanism of this utility model.

[0016] The attached diagram shows the following markings: 01, Control mechanism; 11, Base; 12, Working plate; 13, Protective plate; 14, Controller; 02, Conveying mechanism; 21, Support roller; 22, Top plate; 23, Hydraulic cylinder; 24, Moving frame; 25, Guide roller; 03, Moving mechanism; 31, Positioning box; 32, Slider; 33, Rack; 34, Stepper motor; 35, First reducer; 36, First gear; 04, Bending mechanism; 41, Disc; 42, Turntable; 43, Center column; 44, Bending column; 45, Servo motor; 46, Second reducer; 47, Second gear; 05, Pushing mechanism; 51, Electric cylinder; 52, Push plate; 06, Unloading mechanism; 61, Conveyor belt; 62, Support plate; 63, Shock-absorbing spring; 64, Buffer pad. Detailed Implementation

[0017] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0018] Example 1 This utility model discloses a rebar bending machine, including a control mechanism 01; it also includes a conveying mechanism 02, a moving mechanism 03, a bending mechanism 04, two sets of pushing mechanisms 05, and a discharging mechanism 06. The conveying mechanism 02 is mounted on the control mechanism 01 and conveys the rebar. The moving mechanism 03 is mounted on the control mechanism 01 and drives the bending mechanism 04 to move. The bending mechanism 04 is mounted on the moving mechanism 03 and bends the rebar. Both sets of pushing mechanisms 05 are mounted on the control mechanism 01 and push the rebar out. The discharging mechanism 06 is mounted on the control mechanism 01 and drives the rebar to be discharged. The control mechanism 01 includes a base 11, a working plate 12, and a protective... The protective plate 13 and controller 14 are included. The bottom end of the base 11 is connected to the ground, the bottom end of the working plate 12 is connected to the top end of the base 11, and the bottom end of the protective plate 13 is connected to the top end of the base 11. The controller 14 is mounted on the protective plate 13. The conveying mechanism 02 includes a support roller 21, a top plate 22, two sets of hydraulic cylinders 23, a moving frame 24, and a guide roller 25. The support roller 21 is rotatably mounted on the working plate 12, the top plate 22 is mounted on the working plate 12, both sets of hydraulic cylinders 23 are mounted on the top plate 22, the top end of the moving frame 24 is connected to the bottom end of the two sets of hydraulic cylinders 23, and the guide roller 25 is rotatably mounted on the moving frame 24. The moving mechanism 03 includes a fixed... The positioning mechanism 31 comprises a positioning box 31, a slider 32, a rack 33, a stepper motor 34, a first reducer 35, and a first gear 36. A positioning groove is formed on the working plate 12. The positioning box 31 is mounted on the working plate 12 and communicates with the inside of the positioning groove. The slider 32 is slidably mounted in the positioning groove. The rack 33 is mounted on the slider 32. The stepper motor 34 is mounted on the working plate 12. The output end of the stepper motor 34 is connected to the input end of the first reducer 35. The output end of the first reducer 35 is connected to the input end of the first gear 36. The first gear 36 meshes with the rack 33 for transmission. The bending mechanism 04 includes a disc 41, a turntable 42, a central column 43, and a bending column 46. 4. A servo motor 45, a second reducer 46, and two sets of second gears 47; a disc 41 is mounted on a slider 32; a turntable 42 is rotatably mounted on a disc 41; a central column 43 is mounted on a turntable 42; a bending column 44 is mounted on a turntable 42; a servo motor 45 is mounted on a slider 32; the output end of the servo motor 45 is connected to the input end of the second reducer 46; the output end of the second reducer 46 is connected to the input end of the first set of second gears 47; the second set of second gears 47 is connected to the power input end of the turntable 42; and the two sets of second gears 47 mesh and transmit power; the surfaces of the central column 43 and the bending column 44 are also thermally sprayed with tungsten carbide.During operation, the worker first inserts the reinforcing bar between the support roller 21 and the guide roller 25. Two sets of hydraulic cylinders 23 drive the moving frame 24 to rise and fall, facilitating the clamping of reinforcing bars of different diameters. The controller 14 controls the support roller 21 to transport the reinforcing bar forward. When multiple bending of the reinforcing bar is required, the stepper motor 34 is started. The stepper motor 34 drives the first gear 36 to rotate through the first reducer 35. The first gear 36 meshes with the rack 33, and the rack 33 drives the slider 32 to retract. After the reinforcing bar is transported forward a certain distance, the rack 33 drives the slider 32 to reset, facilitating the bending of the reinforcing bar again. When the reinforcing bar is processed, two sets of pushing mechanisms 05 push it out. A protective plate 13 is installed to prevent the reinforcing bar from injuring the worker.

[0019] Example 2 like Figures 1 to 6As shown, this utility model discloses a rebar bending machine based on embodiment 1. The pushing mechanism 05 includes an electric cylinder 51 and a push plate 52. The electric cylinder 51 is mounted on the working plate 12, and the push plate 52 is mounted on the electric cylinder 51. Two sets of pushing mechanisms 05 are respectively mounted on the front and rear sides of the disc 41. The unloading mechanism 06 includes a conveyor belt 61, a support plate 62, multiple sets of shock-absorbing springs 63, and a buffer pad 64. The conveyor belt 61 is mounted on the working plate 12, the support plate 62 is mounted on the working plate 12, and the multiple sets of shock-absorbing springs 63 are all mounted on the support plate 62. The bottom end of the buffer pad 64 is connected to the top end of the multiple sets of shock-absorbing springs 63. During operation, the operator first inserts the rebar between the support roller 21 and the guide roller 25. Two sets of hydraulic cylinders 23 drive the moving frame 24 to rise and fall, facilitating the clamping of rebars of different diameters. The controller 14 controls the support roller 21 to drive the rebar forward. The operator inserts the rebar between the support roller 21 and the guide roller 25. Two sets of hydraulic cylinders 23 drive the moving frame 24 to lift and lower, facilitating the clamping of steel bars of different diameters. The controller 14 controls the support roller 21 to drive the steel bars forward. When multiple bending of the steel bars is required, the stepper motor 34 is started. The stepper motor 34 drives the first gear 36 to rotate through the first reducer 35. The first gear 36 and the rack 33 mesh and drive the transmission. The rack 33 drives the slider 32 to retract. After the steel bars are conveyed forward a certain distance, the rack 33 drives the slider 32 to reset, facilitating the bending of the steel bars again. When the steel bars are processed, the electric cylinder 51 is started. The electric cylinder 51 pushes the push plate 52. The two sets of push plates 52 push the steel bars synchronously, pushing the steel bars out of the conveying mechanism 02 and the bending mechanism 04. The protective plate 13 is set to prevent the steel bars from injuring workers. The bent steel bars fall onto the conveyor belt 61. Multiple sets of shock-absorbing springs 63 and buffer pads 64 are set to reduce the impact of the steel bars and extend the service life of the device. The conveyor belt 61 carries the steel bars out.

[0020] The hydraulic cylinder 23, stepper motor 34, first reducer 35, servo motor 45 and second reducer 46 of this utility model are purchased from the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0021] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A rebar bending machine, comprising a control mechanism (01); characterized in that, It also includes a conveying mechanism (02), a moving mechanism (03), a bending mechanism (04), two sets of pushing mechanisms (05) and a discharging mechanism (06). The conveying mechanism (02) is installed on the control mechanism (01) and conveys the steel bars. The moving mechanism (03) is installed on the control mechanism (01) and drives the bending mechanism (04) to move. The bending mechanism (04) is installed on the moving mechanism (03) and bends the steel bars. The two sets of pushing mechanisms (05) are both installed on the control mechanism (01) and push the steel bars out. The discharging mechanism (06) is installed on the control mechanism (01) and drives the steel bars to be discharged.

2. A rebar bending machine as described in claim 1, characterized in that, The control mechanism (01) includes a base (11), a working plate (12), a protective plate (13), and a controller (14). The bottom end of the base (11) is connected to the ground, the bottom end of the working plate (12) is connected to the top end of the base (11), the bottom end of the protective plate (13) is connected to the top end of the base (11), and the controller (14) is mounted on the protective plate (13).

3. A rebar bending machine as described in claim 2, characterized in that, The conveying mechanism (02) includes a support roller (21), a top plate (22), two sets of hydraulic cylinders (23), a moving frame (24), and a guide roller (25). The support roller (21) is rotatably mounted on the working plate (12), the top plate (22) is mounted on the working plate (12), both sets of hydraulic cylinders (23) are mounted on the top plate (22), the top of the moving frame (24) is connected to the bottom of the two sets of hydraulic cylinders (23), and the guide roller (25) is rotatably mounted on the moving frame (24).

4. A rebar bending machine as described in claim 2, characterized in that, The moving mechanism (03) includes a positioning box (31), a slider (32), a rack (33), a stepper motor (34), a first reducer (35), and a first gear (36). A positioning groove is opened on the working plate (12). The positioning box (31) is installed on the working plate (12) and communicates with the inside of the positioning groove. The slider (32) is slidably installed in the positioning groove. The rack (33) is installed on the slider (32). The stepper motor (34) is installed on the working plate (12). The output end of the stepper motor (34) is connected to the input end of the first reducer (35). The output end of the first reducer (35) is connected to the input end of the first gear (36). The first gear (36) meshes with the rack (33) for transmission.

5. A rebar bending machine as described in claim 4, characterized in that, The bending mechanism (04) includes a disc (41), a turntable (42), a central column (43), a bending column (44), a servo motor (45), a second reducer (46), and two sets of second gears (47). The disc (41) is mounted on the slider (32), the turntable (42) is rotatably mounted on the disc (41), the central column (43) is mounted on the turntable (42), the bending column (44) is mounted on the turntable (42), the servo motor (45) is mounted on the slider (32), the output end of the servo motor (45) is connected to the input end of the second reducer (46), the output end of the second reducer (46) is connected to the input end of the first set of second gears (47), the second set of second gears (47) is connected to the power input end of the turntable (42), and the two sets of second gears (47) mesh and drive each other.

6. A rebar bending machine as described in claim 5, characterized in that, It also includes thermal spraying of tungsten carbide onto the surfaces of the central column (43) and the bent column (44).

7. A rebar bending machine as described in claim 2, characterized in that, The feeding mechanism (05) includes an electric cylinder (51) and a push plate (52). The electric cylinder (51) is mounted on the working plate (12), and the push plate (52) is mounted on the electric cylinder (51). The two feeding mechanisms (05) are respectively mounted on the front and rear sides of the disc (41).

8. A rebar bending machine as described in claim 2, characterized in that, The feeding mechanism (06) includes a conveyor belt (61), a support plate (62), multiple sets of shock-absorbing springs (63) and a buffer pad (64). The conveyor belt (61) is installed on the working plate (12), the support plate (62) is installed on the working plate (12), the multiple sets of shock-absorbing springs (63) are all installed on the support plate (62), and the bottom end of the buffer pad (64) is connected to the top end of the multiple sets of shock-absorbing springs (63).

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