A multi-angle steel bar bending device and its control method

Abstract

This invention relates to the technical field of rebar processing equipment, specifically to a multi-angle rebar bending device and its control method, comprising a box body, two fixed columns, and a bending device. The box body has slots on both sides. The two fixed columns are respectively fixed to both sides of the bending device. The bending device includes a first telescopic rod, a fixed plate, and multiple second telescopic rods. The top of the first telescopic rod is connected to the bottom of a first universal joint, and the top of the first universal joint is fixed to the bottom of the fixed plate. The bottom of the first telescopic rod is connected to the top of a second universal joint, and the bottom of the second universal joint is fixed to the bottom surface of the inner cavity of the box body. The multiple second telescopic rods are symmetrically arranged on both sides of the fixed plate, with one end of each second telescopic rod connected to one end of a third universal joint, and the other end of the third universal joint fixed to the surface of the fixed plate. Using this bending device, rebar can be bent into any shape within a single plane.

Description

Technical Field

[0001] This invention relates to the technical field of steel bar processing equipment, specifically to a multi-angle steel bar bending device and its control method. Background Technology

[0002] Prefabricated buildings are an emerging form of construction that consists of multiple prefabricated components assembled on-site. These components are manufactured in factories using molds, and this method has advantages such as ease of operation and short construction period.

[0003] Chinese utility model patent with publication number CN218798755U discloses a labor-saving rebar bending device, including a device base, a first support frame provided on one side of the upper end of the device base; connecting rotating blocks, which are provided on both sides outside the first support frame; a pair of third support frames are provided at one end of each of the two connecting rotating blocks; a second bearing roller is provided on one side of the outer side of the two third support frames; a fixing ring is provided at one end of the second bearing roller; a second support frame is provided outside the fixing ring; and a first bearing roller is provided at the upper end of the outer side of the second support frame.

[0004] The aforementioned patent uses the lever principle during the bending process. The lever principle can reduce the force required for bending compared to a single impact force, thus avoiding the need for the device to be used in a more time-consuming and laborious manner. However, it can only bend steel bars in one direction and cannot meet the needs of various bending styles. Summary of the Invention

[0005] To overcome the above problems, this invention proposes a multi-angle rebar bending device and its control method, which uses a bending device to bend the rebar, and can bend the rebar into any shape in a plane.

[0006] The technical solution of the present invention is as follows:

[0007] A multi-angle steel bar bending device includes a box body, two fixed columns, and a bending device. The box body has slots on both sides. The two fixed columns are respectively fixed to both sides of the bending device.

[0008] The bending device includes a first telescopic rod, a fixed plate, and multiple second telescopic rods. The top of the first telescopic rod is connected to the bottom of a first universal joint, and the top of the first universal joint is fixed to the bottom of the fixed plate. The bottom of the first telescopic rod is connected to the top of a second universal joint, and the bottom of the second universal joint is fixed to the bottom surface of the inner cavity of the box. The multiple second telescopic rods are symmetrically arranged on both sides of the fixed plate. One end of each second telescopic rod is connected to one end of a third universal joint, and the other end of the third universal joint is fixed to the surface of the fixed plate. The other end of each of the multiple second telescopic rods is connected to one end of a fourth universal joint, and the other end of the fourth universal joint is fixed to the side wall of the inner cavity of the box.

[0009] Both of the two fixed columns have through holes at the top and in the middle of the fixed plate for the reinforcing bars to pass through.

[0010] Furthermore, the rebar bending device also includes a bottom track and a moving assembly. The lower end of the bottom track is fixed to the bottom of the inner cavity of the box, and the left and right ends of the bottom track are fixed to the side walls of the inner cavity of the box. The moving assembly is located at the bottom of the fixed column and the bending device. The moving assembly includes a support platform, a wheel hub motor, tires, and an extension plate. The extension plate is fixed to the bottom of the fixed column and the second universal joint, and the extension plate is clearance-fitted with the inner cavity of the bottom track. The top of the support platform is fixed to the bottom of the extension plate. A tire is provided at each end of the support platform. The central axle of the two tires passes through the support platform. A wheel hub motor is provided on the inner side of each tire. The two tires are in rolling connection with the bottom of the inner cavity of the box.

[0011] Furthermore, the rebar bending device also includes a top track and a heating device. The top track includes a frame, a threaded rod, and a connecting column. The top of the frame is fixed to the top of the inner cavity of the box, and a slotted hole is opened at the bottom of the frame. The threaded rod and a motor are fixed in the inner cavity of the frame. One end of the threaded rod is rotatably connected to the side wall of the inner cavity of the frame, and the other end of the threaded rod is fixed to the output shaft of the motor. The other end of the motor is fixed to the other side wall of the inner cavity of the frame. The threaded rod is threaded to the top of the connecting column, the connecting column passes through the slotted hole, and the bottom of the connecting column is fixed to the heating device.

[0012] Furthermore, the heating device includes a third telescopic rod, a movable ring, and multiple flame guns. The top of the third telescopic rod is fixed to the bottom of the connecting column, and the bottom of the third telescopic rod is fixed with a movable ring. Multiple flame guns are evenly fixed on the inner circumference of the movable ring, and the multiple flame guns are connected to an external gas pipe.

[0013] Furthermore, the flamethrower is an oxyhydrogen flamethrower.

[0014] Furthermore, a clamping device is installed in the through hole of the fixing post and the fixing plate. The clamping device includes two clamping plates and a fourth telescopic rod that matches the clamping plates. The clamping plates are U-shaped. One end of the fourth telescopic rod is fixed to a clamping plate, and the other end is fixed to a fixing post or fixing plate on the outer periphery of the through hole. The two clamping plates form a flat plate with an opening in the middle.

[0015] Furthermore, the fixing plate, clamping plate, and fourth telescopic rod are made of high-temperature resistant materials.

[0016] A method for controlling a rebar bending device, used to control a multi-angle rebar bending device, includes the following steps:

[0017] Step S10: Insert the reinforcing bars into the box through the slot and fix the reinforcing bars using the clamping devices in the fixing column and fixing plate;

[0018] Step S20: Adjust the relative positions of the fixing column and bending device with the reinforcing bar as needed;

[0019] Step S30: Determine whether to use a heating device to heat the steel bars based on the difficulty of bending them.

[0020] Step S40: Based on the shape of the steel bar that needs to be bent, set the extension and retraction amounts of the first extension rod and multiple second extension rods;

[0021] Step S50: Process the reinforcing bars according to the set parameters;

[0022] Step S60: Shrink the clamping device inside the fixed column and fixed plate so that the clamping device no longer fixes the steel bar;

[0023] Step S70: Remove the reinforcing steel through the empty slot.

[0024] Furthermore, step S20 includes the following steps:

[0025] Step S21: Set the location and length of the bent section of the reinforcing bar as needed;

[0026] Step S22: Adjust the position of the fixed column and bending device using the bottom track and moving component according to the set bending parameters.

[0027] Furthermore, when using a heating device, step S30 includes the following steps:

[0028] Step S31: Adjust the moving ring to the designated position using the top rail and the third telescopic rod;

[0029] Step S32: Use a flame gun to heat the steel bars to soften and anneal them.

[0030] Step S33: Raise the heating device.

[0031] The present invention has the following beneficial effects:

[0032] 1. This invention uses a bending device to bend steel bars, which can be bent into any shape in a plane.

[0033] 2. The present invention uses a first telescopic rod to bend the steel bar upwards or downwards, and a second telescopic rod to bend the steel bar at other angles. The first telescopic rod and the second telescopic rod work together to allow the steel bar to bend in any direction within a horizontal plane.

[0034] 3. The present invention can adjust the position of the fixed column and the bending device by adjusting the bottom track and the moving component, thereby adjusting the bending position and the length of the bent part of a steel bar.

[0035] 4. When a steel bar is difficult to bend or has a complex bending shape, a heating device can be used to heat the steel bar to soften and anneal it, so that the bending device can be used to bend the steel bar. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of the present invention;

[0037] Figure 2 This is a side sectional view of the present invention;

[0038] Figure 3 for Figure 2 Sectional view of region A in the middle;

[0039] Figure 4 This is a schematic diagram of the bottom track structure;

[0040] Figure 5 This is a structural diagram of the moving component;

[0041] Figure 6 This is a schematic diagram of the top track structure;

[0042] Figure 7 This is a schematic diagram of the heating device.

[0043] The attached image is labeled as follows:

[0044] 1. Box body; 11. Empty slot; 2. Fixed column; 3. Bottom rail; 41. First telescopic rod; 42. Fixed plate; 43. Second telescopic rod; 44. First universal joint; 45. Second universal joint; 46. Third universal joint; 47. Fourth universal joint; 5. Top rail; 51. Frame; 52. Strip hole; 53. Threaded rod; 54. Motor; 55. Connecting column; 6. Heating device; 61. Third telescopic rod; 62. Moving ring; 63. Flame gun; 7. Clamping device; 71. Clamping plate; 72. Fourth telescopic rod; 8. Moving assembly; 81. Support platform; 82. Wheel hub motor; 83. Tire; 84. Extension plate; 9. Reinforcing steel. Detailed Implementation

[0045] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0046] like Figures 1-7 As shown, the multi-angle steel bar bending device of this embodiment includes a box body 1, two fixed columns 2 and a bending device. The box body 1 has slots 11 on both sides; the two fixed columns 2 are respectively fixed on both sides of the bending device.

[0047] The bending device includes a first telescopic rod 41, a fixed plate 42, and multiple second telescopic rods 43. The top of the first telescopic rod 41 is connected to the bottom of the first universal joint 44, and the top of the first universal joint 44 is fixed to the bottom of the fixed plate 42. The bottom of the first telescopic rod 41 is connected to the top of the second universal joint 45, and the bottom of the second universal joint 45 is fixed to the bottom surface of the inner cavity of the housing 1. Multiple second telescopic rods 43 are symmetrically arranged on both sides of the fixed plate 42. One end of each second telescopic rod 43 is connected to one end of a third universal joint 46, and the other end of the third universal joint 46 is fixed to the surface of the fixed plate 42. The other end of each second telescopic rod 43 is connected to one end of a fourth universal joint 47, and the other end of the fourth universal joint 47 is fixed to the side wall of the inner cavity of the housing 1.

[0048] Both fixed columns 2 and the middle of the fixed plate 42 have through holes for the steel bars 9 to pass through.

[0049] The present invention uses a first telescopic rod 41 to bend the reinforcing bar 9 upward or downward, and a second telescopic rod 43 to bend the reinforcing bar 9 at other angles. The first telescopic rod 41 and the second telescopic rod 43 cooperate to allow the reinforcing bar 9 to bend in any direction in a vertical plane.

[0050] Furthermore, the rebar bending device also includes a bottom track 3 and a moving component 8. The lower end of the bottom track 3 is fixed to the bottom of the inner cavity of the box 1, and the left and right ends of the bottom track 3 are fixed to the side walls of the inner cavity of the box 1. The moving component 8 is set at the bottom of the fixed column 2 and the bending device. The moving component 8 includes a support platform 81, a wheel motor 82, tires 83 and an extension plate 84. The extension plate 84 is fixed to the bottom of the fixed column 2 and the second universal head 45. The extension plate 84 is in clearance fit with the inner cavity of the bottom track 3. The top of the support platform 81 is fixed to the bottom of the extension plate 84. A tire 83 is set at each end of the support platform 81. The central axis of the two tires 83 passes through the support platform 81. A wheel motor 82 is set on the inner side of each tire 83. The two tires 83 are in rolling connection with the bottom of the inner cavity of the box 1.

[0051] The positions of the fixed column 2 and the bending device are adjusted by the bottom track 3 and the moving component 8, so that the bending device can be located at any position of a steel bar 9 to bend the steel bar 9 at any position; the distance between the two fixed columns 2 and the distance from the bending device are adjustable, thereby controlling the length and shape of the bent part of a steel bar 9.

[0052] Furthermore, the rebar bending device also includes a top track 5 and a heating device 6. The top track 5 includes a frame 51, a threaded rod 53, and a connecting column 55. The top of the frame 51 is fixed to the top of the inner cavity of the box 1, and a strip hole 52 is opened at the bottom of the frame 51. The threaded rod 53 and a motor 54 are fixed in the inner cavity of the frame 51. One end of the threaded rod 53 is rotatably connected to the side wall of the inner cavity of the frame 51, and the other end of the threaded rod 53 is fixed to the output shaft of the motor 54. The other end of the motor 54 is fixed to the other side wall of the inner cavity of the frame 51. The threaded rod 53 is threadedly connected to the top of the connecting column 55. The connecting column 55 passes through the strip hole 52, and the bottom of the connecting column 55 is fixed to the heating device 6.

[0053] Furthermore, the heating device 6 includes a third telescopic rod 61, a moving ring 62, and multiple flame guns 63. The top of the third telescopic rod 61 is fixed to the bottom of the connecting column 55, and the moving ring 62 is fixed to the bottom of the third telescopic rod 61. Multiple flame guns 63 are evenly fixed to the inner circumference of the moving ring 62, and the multiple flame guns 63 are connected to the external gas pipe.

[0054] When a steel bar 9 is difficult to bend or has a complex bending shape, a heating device 6 can be used to heat the steel bar 9 to soften and anneal it, so that the bending device can bend the steel bar 9.

[0055] Furthermore, the flamethrower 63 is an oxyhydrogen flamethrower.

[0056] Furthermore, a clamping device 7 is installed in the through hole of the fixing post 2 and the fixing plate 42. The clamping device 7 includes two clamping plates 71 and a fourth telescopic rod 72 that matches the clamping plates 71. The clamping plates 71 are U-shaped. One end of the fourth telescopic rod 72 is fixed to one clamping plate 71, and the other end is fixed to the fixing post 2 or the fixing plate 42 on the outer periphery of the through hole. The two clamping plates 71 form a flat plate with an opening in the middle.

[0057] The fourth telescopic rod 72 can extend and retract to different degrees according to the thickness of the reinforcing bar 9, and drive the clamping plate 71 to clamp the reinforcing bar 9, so that the clamping device 7 can be adapted to reinforcing bars 9 of various thicknesses.

[0058] Furthermore, the fixing plate 42, the clamping plate 71, and the fourth telescopic rod 72 are made of high-temperature resistant materials.

[0059] Made of high-temperature resistant materials to prevent the steel bars from getting too hot after being heated by the flame gun 63, thus preventing damage to other devices.

[0060] A method for controlling a rebar bending device, used to control a multi-angle rebar bending device, includes the following steps:

[0061] Step S10: Insert the reinforcing bar 9 into the box body 1 through the slot 11, and fix the reinforcing bar 9 using the clamping device 7 in the fixing column 2 and the fixing plate 42;

[0062] Step S20: Adjust the relative positions of the fixed column 2 and the bending device with the reinforcing bar 9 as needed;

[0063] Step S21: Set the bending location and length of the bending portion of the reinforcing bar 9 as needed;

[0064] Step S22: According to the set bending parameters, adjust the position of the fixed column 2 and the bending device using the bottom rail 3 and the moving component 8;

[0065] Step S30: Determine whether to use heating device 6 to heat the steel bar 9 based on the difficulty of bending the steel bar 9.

[0066] Step S31: Adjust the moving ring 62 to the designated position using the top rail 5 and the third telescopic rod 61;

[0067] Step S32: Use a flame gun 63 to heat the steel bar 9 until it reaches a softened annealed state;

[0068] Step S33: Raise the heating device 6;

[0069] Step S40: Based on the shape that the reinforcing bar 9 needs to be bent, set the extension and retraction amounts of the first telescopic rod 41 and multiple second telescopic rods 43;

[0070] Step S50: Process the reinforcing bar 9 according to the set parameters;

[0071] Step S60: Shrink the clamping device 7 inside the fixing column 2 and the fixing plate 42 so that the clamping device 7 no longer fixes the steel bar 9;

[0072] Step S70: Remove the reinforcing bar 9 through the empty slot 11.

[0073] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A multi-angle steel bar bending device, characterized in that, It includes a box body (1), two fixed columns (2) and a bending device. The box body (1) has slots (11) on both sides; the two fixed columns (2) are fixed on both sides of the bending device respectively. The bending device includes a first telescopic rod (41), a fixed plate (42), and multiple second telescopic rods (43). The top of the first telescopic rod (41) is connected to the bottom of the first universal joint (44), and the top of the first universal joint (44) is fixed to the bottom of the fixed plate (42). The bottom of the first telescopic rod (41) is connected to the top of the second universal joint (45), and the bottom of the second universal joint (45) is fixed to the bottom surface of the inner cavity of the box (1). The multiple second telescopic rods (43) are symmetrically arranged on both sides of the fixed plate (42). One end of each second telescopic rod (43) is connected to one end of a third universal joint (46), and the other end of the third universal joint (46) is fixed to the surface of the fixed plate (42). The other end of each second telescopic rod (43) is connected to one end of a fourth universal joint (47), and the other end of the fourth universal joint (47) is fixed to the side wall of the inner cavity of the box (1). Both of the two fixed columns (2) have through holes above them and in the middle of the fixed plate (42) for the steel bars (9) to pass through.

2. The multi-angle steel bar bending device as described in claim 1, characterized in that, The steel bar bending device also includes a bottom track (3) and a moving component (8). The lower end of the bottom track (3) is fixed to the bottom of the inner cavity of the box (1), and the left and right ends of the bottom track (3) are fixed to the side walls of the inner cavity of the box (1). The moving component (8) is set at the bottom of the fixed column (2) and the bending device. The moving component (8) includes a support platform (81), a hub motor (82), a tire (83) and an extension plate (84). The extension plate (84) is fixed to the bottom of the fixed column (2) and the second universal head (45). The extension plate (84) is in clearance fit with the inner cavity of the bottom track (3). The top of the support platform (81) is fixed to the bottom of the extension plate (84). A tire (83) is set at each end of the support platform (81). The central axis of the two tires (83) passes through the support platform (81). A hub motor (82) is set on the inner side of the two tires (83). The two tires (83) are in rolling connection with the bottom of the inner cavity of the box (1).

3. The multi-angle steel bar bending device as described in claim 1, characterized in that, The steel bar bending device also includes a top track (5) and a heating device (6). The top track (5) includes a frame (51), a threaded rod (53), and a connecting column (55). The top of the frame (51) is fixed to the top of the inner cavity of the box (1). A strip hole (52) is opened at the bottom of the frame (51). The threaded rod (53) and a motor (54) are fixed in the inner cavity of the frame (51). One end of the threaded rod (53) is rotatably connected to the side wall of the inner cavity of the frame (51), and the other end of the threaded rod (53) is fixed to the output shaft of the motor (54). The other end of the motor (54) is fixed to the other side wall of the inner cavity of the frame (51). The threaded rod (53) is threadedly connected to the top of the connecting column (55). The connecting column (55) passes through the strip hole (52), and the bottom of the connecting column (55) is fixed to the heating device (6).

4. The multi-angle steel bar bending device as described in claim 3, characterized in that, The heating device (6) includes a third telescopic rod (61), a moving ring (62) and multiple flame guns (63). The top of the third telescopic rod (61) is fixed to the bottom of the connecting column (55). The bottom of the third telescopic rod (61) is fixed with a moving ring (62). Multiple flame guns (63) are evenly fixed on the inner circumference of the moving ring (62). The multiple flame guns (63) are connected to an external gas pipe.

5. A multi-angle steel bar bending device as described in claim 4, characterized in that, The flame gun (63) is an oxyhydrogen flame gun.

6. The multi-angle steel bar bending device as described in claim 4, characterized in that, A clamping device (7) is installed in the through hole of the fixing post (2) and the fixing plate (42). The clamping device (7) includes two clamping plates (71) and a fourth telescopic rod (72) that matches the clamping plates (71). The clamping plates (71) are U-shaped. One end of the fourth telescopic rod (72) is fixed to a clamping plate (71), and the other end is fixed to the fixing post (2) or the fixing plate (42) on the outer periphery of the through hole. The two clamping plates (71) form a flat plate with an opening in the middle.

7. A multi-angle steel bar bending device as described in claim 6, characterized in that, The fixing plate (42), clamping plate (71) and fourth telescopic rod (72) are made of high-temperature resistant materials.

8. A method for controlling a rebar bending device, used to control the multi-angle rebar bending device as described in claim 6, characterized in that, Includes the following steps: Step S10: Insert the reinforcing bar (9) into the box body (1) through the slot (11), and fix the reinforcing bar (9) using the clamping device (7) in the fixing column (2) and the fixing plate (42); Step S20: Adjust the relative positions of the fixed column (2) and the bending device with the reinforcing bar (9) as needed; Step S30: Determine whether to use a heating device (6) to heat the steel bar (9) based on the ease of bending it. Step S40: Based on the shape that the reinforcing bar (9) needs to be bent, set the extension and retraction amounts of the first telescopic rod (41) and multiple second telescopic rods (43); Step S50: Process the reinforcing bars (9) according to the set parameters; Step S60: Shrink the clamping device (7) in the fixed column (2) and the fixed plate (42) so that the clamping device (7) no longer fixes the steel bar (9); Step S70: Remove the reinforcing bar (9) through the empty slot (11).

9. The control method for a rebar bending device as described in claim 8, characterized in that, Step S20 includes the following steps: Step S21: Set the bending location and length of the bent portion of the reinforcing bar (9) as needed; Step S22: According to the set bending parameters, adjust the position of the fixed column (2) and the bending device using the bottom rail (3) and the moving component (8).

10. The control method for a rebar bending device as described in claim 8, characterized in that, When using the heating device (6) in step S30, the following steps are included: Step S31: Adjust the moving ring (62) to the designated position using the top rail (5) and the third telescopic rod (61); Step S32: Heat the steel bar with a flame gun (63) to soften and anneal it. Step S33, lift the heating device (6).

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