A reinforcing bar bending device

Abstract

The utility model discloses a kind of steel bending device, including bending machine body, the front of bending machine body is equipped with support plate, the lower surface of support plate is equipped with multiple groups of supporting legs, the upper and lower surfaces of support plate are equipped with rolling assembly for rolling steel bar, the inside of support plate is slidably connected with driving assembly for synchronously driving multiple groups of steel bar to move, the outer end of driving assembly and bending machine body is equipped with reset component for resetting the position of driving assembly, by starting rolling assembly and driving steel bar to slide on the upper end of support plate, so that steel bar is extruded and shaped by rolling assembly in the process of sliding, steel bar reaches more accurate diameter and straightness before bending at this time, to reduce the deformation error of steel bar when bending;By rolling assembly in the process of starting, the driving assembly is synchronously driven to slide on the upper end of support plate, so that driving assembly drives multiple groups of steel bar clamped in the inside of rolling assembly to move in the process of sliding.

Description

Technical Field

[0001] This utility model relates to the field of steel bar processing technology, specifically a steel bar bending device. Background Technology

[0002] In the traditional steel bar processing field, the pre-treatment accuracy of steel bars before bending directly affects the forming quality of components. In existing technologies, steel bar bending devices mostly only have a single bending function and do not specifically address issues such as deviations in the original diameter of the steel bars or insufficient straightness. This leads to defects such as angle deviations and local stress concentrations during bending, which seriously affect the stability of engineering structures. In addition, although some equipment adds a rolling process, it adopts a series connection of independent rolling units and bending units, which has drawbacks such as large equipment size, low process connection efficiency, and complex collaborative control. It is difficult to meet the high-efficiency production needs of modern industrialized construction. Therefore, this utility model provides a steel bar bending device to solve the above-mentioned problems. Utility Model Content

[0003] The purpose of this utility model is to provide a steel bar bending device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A rebar bending device includes a bending machine body. A support plate is mounted on the front of the bending machine body. Multiple sets of support legs are mounted on the lower surface of the support plate. Rolling components for rolling rebars are mounted on the upper and lower surfaces of the support plate. A driving component for synchronously driving multiple sets of rebars to move is slidably connected inside the support plate. A reset component for resetting the position of the driving component is mounted on the outer ends of the driving component and the bending machine body. The rolling component includes a first fixing plate, an L-shaped connecting plate, and a side plate. The first fixing plate and the L-shaped connecting plate are respectively mounted on the upper and lower surfaces of the support plate. On the lower surface, a motor is installed at the bottom of the inner wall of the L-shaped connecting plate. The side plate is installed on the upper surface of the support plate. A spring telescopic rod is installed on the side of the side plate near the first fixed plate. A second fixed plate is installed on the end of the spring telescopic rod away from the side plate. Two sets of rolling rolls are rotatably connected inside the second fixed plate and the first fixed plate. A third gear is installed at the output end of the motor. The external teeth of the third gear are meshed with a first gear. The first gear is installed at the lower end of a set of rolling rolls on the right front side. The lower ends of the two sets of rolling rolls on the right side are meshed with a gear ring.

[0006] As a further embodiment of this utility model, the drive assembly includes a connecting rope and a rotating rod. The rotating rod is rotatably connected to the inside of the support plate. The outer teeth of the third gear are meshed with a fourth gear, which is mounted on the outer surface of the rotating rod. A take-up roller is hinged to the lower end of the rotating rod. The connecting rope is mounted on the outer end of the take-up roller. An L-shaped adjusting rod is slidably connected inside the support plate. The end of the connecting rope away from the take-up roller is mounted on the lower end of the L-shaped adjusting rod.

[0007] As a further embodiment of this utility model, the reset assembly includes two sets of connecting blocks, two sets of contact switches, and a reset spring. The contact switches are installed on the side of the support plate away from the bending machine body. The connecting blocks are installed on the left and right sides of the L-shaped adjusting rod. The contact switches are located on the moving path of the connecting blocks. The reset spring is installed inside the support plate. The end of the reset spring away from the bending machine body is installed on the side of the L-shaped adjusting rod close to the bending machine body. The contact switches and the control end of the rotating rod are electrically connected.

[0008] As a further embodiment of this utility model, an L-shaped limiting block is installed on the side of the second fixing plate and the first fixing plate near the return spring. The side of the L-shaped limiting block away from the inner wall of the bending machine body and the side of the rolling roll near the return spring are kept parallel.

[0009] As a further embodiment of this invention, a limiting ring is installed at the outer end of the take-up roller, and the limiting ring is located at the lower end of the fourth gear.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. In use, the invention starts by driving the motor to rotate the first gear via the third gear. During this rotation, the first gear drives the second gear at the right front end to rotate the gear ring. The gear ring, in turn, drives the two sets of fixed rods on the right side to rotate the two sets of rolling rollers. As the rolling rollers rotate, the steel bar between the first and second fixed plates slides between them. Then, through the expansion of the spring telescopic rod, the second fixed plate is pushed to engage the steel bar between the four sets of rolling rollers. This allows the steel bar to synchronously drive the two sets of rolling rollers on the left side to rotate during its sliding motion. The steel bar is then squeezed and shaped by the four sets of rolling rollers, achieving a more precise diameter and straightness before bending, thus reducing deformation errors during bending and improving the practicality of the device.

[0012] 2. When this utility model is in use, when the operator starts the rolling assembly and drives multiple steel bars inside the rolling assembly to move into the bending machine body, the third gear drives the fourth gear and the rotating rod to rotate. During the rotation of the rotating rod, the winding roller drives the connecting rope to wind up. As the length of the connecting rope shortens, it pulls the L-shaped adjusting rod to slide inside the groove of the support plate. Since the L-shaped adjusting rod is located between the first fixed plate and the second fixed plate, the L-shaped adjusting rod drives multiple steel bars between the second fixed plate and the first fixed plate to move during the adjustment and movement. This avoids the situation where some vertical or narrow steel bars cannot move inside the rolling assembly when the rolling assembly is rolling bent or wide-diameter steel bars, thus improving the stability of the rolling assembly during the steel bar conveying process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the top structure of a steel bar bending device.

[0014] Figure 2 This is a schematic diagram of the top surface structure of the rolling component in a steel bar bending device.

[0015] Figure 3 This is a side view of a steel bar bending device.

[0016] Figure 4 This is a schematic diagram of the bottom structure of the toothed ring in a steel bar bending device.

[0017] Figure 5 A steel bar bending device Figure 3 Enlarged view of point A in the middle.

[0018] In the diagram: 1. Bending machine body; 2. Support plate; 3. Rolling assembly; 301. First fixed plate; 302. L-shaped connecting plate; 303. Motor; 304. Rolling roll; 305. First gear; 306. Gear ring; 307. Tensioning wheel; 308. Fixed rod; 309. Side plate; 310. Spring telescopic rod; 311. Second fixed plate; 312. Second gear; 313. Drive rod; 314. Third gear; 4. Drive assembly; 401. Connecting rope; 402. L-shaped adjusting rod; 403. Return spring; 404. Take-up roll; 405. Limiting ring; 406. Fourth gear; 407. Rotating rod; 5. Return assembly; 501. Connecting block; 502. Contact switch; 6. Support leg; 7. L-shaped limit block. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-5 In this embodiment of the present invention, a steel bar bending device includes a bending machine body 1, a support plate 2 is installed on the front of the bending machine body 1, multiple sets of support legs 6 are installed on the lower surface of the support plate 2, rolling components 3 for rolling steel bars are installed on the upper and lower surfaces of the support plate 2, a driving component 4 for synchronously driving multiple sets of steel bars to move is slidably connected inside the support plate 2, and a reset component 5 for resetting the position of the driving component 4 is installed at the outer end of the driving component 4 and the bending machine body 1.

[0021] Specifically, by activating the rolling assembly 3, the reinforcing bar is driven to slide on the upper end of the support plate 2. During the sliding process, the reinforcing bar is squeezed and shaped by the rolling assembly 3. At this time, the reinforcing bar achieves a more accurate diameter and straightness before bending, thereby reducing the deformation error of the reinforcing bar during bending, thus improving the practicality of the device. During the activation of the rolling assembly 3, the driving assembly 4 is simultaneously driven to slide on the upper end of the support plate 2. During the sliding process, the driving assembly 4 drives multiple sets of reinforcing bars that are clamped inside the rolling assembly 3 to move, thereby avoiding the inability of multiple sets of reinforcing bars to move synchronously during the conveying process.

[0022] The rolling assembly 3 includes a first fixed plate 301, an L-shaped connecting plate 302, and a side plate 309. The first fixed plate 301 and the L-shaped connecting plate 302 are respectively installed on the upper and lower surfaces of the support plate 2. A motor 303 is installed on the bottom of the inner wall of the L-shaped connecting plate 302. The side plate 309 is installed on the upper surface of the support plate 2. A spring telescopic rod 310 is installed on the side of the side plate 309 near the first fixed plate 301. A second fixed plate 311 is installed on the end of the spring telescopic rod 310 away from the side plate 309. Two sets of rolling rolls 304 are rotatably connected inside both the second fixed plate 311 and the first fixed plate 301. A third gear 314 is installed at the output end of the motor 303. The external teeth of the third gear 314 are meshed with a first gear 305. The first gear 305 is installed at the lower end of a set of rolling rolls 304 on the right front side. Gear rings are meshed at the lower ends of the two sets of rolling rolls 304 on the right side. 306. The first fixing plate 301 and the second fixing plate 311 each have two sets of grooves inside. The bottom and top of the inner walls of the grooves of the first fixing plate 301 and the second fixing plate 311 each have through holes. The through holes of the first fixing plate 301 and the second fixing plate 311 are rotatably connected to the fixing rods 308. The rolling roll 304 is installed on the outer end of the fixing rod 308. The upper surface of the support plate 2 has two sets of positioning holes. The bottom end of the right fixing rod 308 passes through the positioning hole inside the support plate 2 and is equipped with the second gear 312. The outer teeth of the second gear 312 are meshed with the inside of the gear ring 306. The output shaft of the motor 303 is equipped with a drive rod 313. The drive rod 313 is installed on the outer surface of the third gear 314. The lower end of the support plate 2 is rotatably connected to two sets of tensioning wheels 307. The outer surface of the tensioning wheels 307 abuts against the side of the gear ring 306 away from the second gear 312.

[0023] Specifically, when the reinforcing bar is placed between the second fixed plate 311 and the first fixed plate 301, the starting motor 303 drives the third gear 314 to drive the first gear 305 to rotate. During this rotation, the first gear 305 drives the right front set of the second gear 312 to drive the gear ring 306 to rotate. During this rotation, the gear ring 306 drives the two sets of fixed rods 308 on the right side to drive the two sets of rolling rollers 304 on the right side to rotate. During this rotation, the two sets of rolling rollers 304 on the right side drive the reinforcing bar between the first fixed plate 301 and the second fixed plate 311 to slide. Then, during the expansion process by the spring telescopic rod 310, the second fixed plate 311 is pushed to clamp the reinforcing bar between the four sets of rolling rollers 304, so that the reinforcing bar drives the two sets of rolling rollers 304 on the left side to rotate simultaneously during the sliding process. At this time, the reinforcing bar is squeezed and shaped by the four sets of rolling rollers 304, so that the reinforcing bar achieves a more accurate diameter and straightness before bending, thereby reducing the deformation error of the reinforcing bar during bending, thus improving the practicality of the device.

[0024] The drive assembly 4 includes a connecting rope 401 and a rotating rod 407. The rotating rod 407 is rotatably connected to the inside of the support plate 2. The outer teeth of the third gear 314 are meshed with the fourth gear 406. The fourth gear 406 is installed on the outer surface of the rotating rod 407. The lower end of the rotating rod 407 is hinged to a take-up roller 404. The connecting rope 401 is installed on the outer end of the take-up roller 404. An L-shaped adjusting rod 402 is slidably connected inside the support plate 2. The end of the connecting rope 401 away from the take-up roller 404 is installed on the lower end of the L-shaped adjusting rod 402. A groove is provided on the upper surface of the support plate 2. The L-shaped adjusting rod 402 is slidably connected inside the groove of the support plate 2. A groove is provided on the lower surface of the support plate 2. The rotating rod 407 is rotatably connected inside the groove of the support plate 2.

[0025] Specifically, when the operator starts the rolling assembly 3 and drives multiple steel bars inside the rolling assembly 3 to move into the bending machine body 1, the third gear 314 drives the fourth gear 406 and the rotating rod 407 to rotate. During the rotation, the rotating rod 407 drives the take-up roller 404 to take up the connecting rope 401. As the length of the connecting rope 401 shortens, it pulls the L-shaped adjusting rod 402 to slide inside the groove of the support plate 2. Since the L-shaped adjusting rod 402 is positioned between the first fixed plate 301 and the second fixed plate 311, the L-shaped adjusting rod 402 drives multiple steel bars between the second fixed plate 311 and the first fixed plate 301 to move during the adjustment and movement. This avoids the inability of some vertical or narrow steel bars to move inside the rolling assembly 3 when rolling bent or wide-diameter steel bars, thus improving the stability of the rolling assembly 3 during the steel bar conveying process.

[0026] The reset assembly 5 includes two sets of connecting blocks 501, two sets of contact switches 502, and a reset spring 403. The contact switches 502 are installed on the side of the support plate 2 away from the bending machine body 1. The connecting blocks 501 are installed on the left and right sides of the L-shaped adjusting rod 402. The position of the contact switches 502 is located on the moving path of the connecting blocks 501. The reset spring 403 is installed inside the support plate 2. The end of the reset spring 403 away from the bending machine body 1 is installed on the side of the L-shaped adjusting rod 402 close to the bending machine body 1. The contact switches 502 and the control end of the rotating rod 407 are electrically connected. The reset spring 403 is installed inside the slide groove of the support plate 2.

[0027] Specifically, during the winding process, the connecting rope 401 pulls the L-shaped adjusting rod 402 to move inside the groove of the support plate 2. As the L-shaped adjusting rod 402 moves, it drives the connecting block 501 to move as well. The contact switch 502 is located on the moving path of the connecting block 501. When the connecting block 501 moves, it triggers the contact switch 502 to close the rotating rod 407. At this time, the reset spring 403 pushes the L-shaped adjusting rod 402 to move during the expansion process. When the L-shaped adjusting rod 402 moves, it pulls the connecting rope 401 to drive the take-up roller 404 to rotate at the lower end of the rotating rod 407. Under this action, the connecting rope 401 slides out of the outer end of the take-up roller 404 due to the tension of the L-shaped adjusting rod 402, thereby automatically completing the reset operation of the L-shaped adjusting rod 402 and improving work efficiency.

[0028] Both the second fixing plate 311 and the first fixing plate 301 are equipped with L-shaped limiting blocks 7 on the side near the return spring 403. The side of the L-shaped limiting block 7 away from the inner wall of the bending machine body 1 and the side of the rolling roller 304 near the return spring 403 are kept parallel. Specifically, by keeping the side of the L-shaped limiting block 7 away from the inner wall of the bending machine body 1 and the side of the rolling roller 304 near the return spring 403 parallel, the L-shaped limiting block 7 simultaneously abuts against the outer surface of the reinforcing bar when the rolling roller 304 abuts against the outer surface of the reinforcing bar. This allows the rolling assembly 3 to simultaneously restrict the movement path of the reinforcing bar inside the bending machine body 1, thereby preventing the reinforcing bar from moving during the bending process and causing errors due to offset during bending. This improves the yield rate of the bending machine body 1 in the process of bending reinforcing bars.

[0029] A limiting ring 405 is installed at the outer end of the take-up roller 404. The limiting ring 405 is located directly below the fourth gear 406. Specifically, the limiting ring 405 is located below the fourth gear 406, which restricts the position of the connecting rope 401 wrapped around the outer end of the take-up roller 404, thereby preventing the connecting rope 401 from contacting the fourth gear 406 during the winding process and causing damage to the connecting rope 401.

[0030] The working principle of this utility model is as follows:

[0031] When this utility model is in use, the motor 303 starts and drives the first gear 305 to rotate. At this time, the first gear 305 drives the second gear 312 at the right front end to drive the gear ring 306 to rotate. Then, the fixed rod 308 drives the two sets of rolling rollers 304 on the right side to rotate. At this time, the spring telescopic rod 310 pushes the second fixed plate 311, so that the four sets of rolling rollers 304 clamp the steel bar. The two sets of rolling rollers 304 on the right side drive the steel bar to slide between the first fixed plate 301 and the second fixed plate 311 through friction, while driving the two sets of rolling rollers 304 on the left side to rotate, so as to achieve precise shaping of the steel bar diameter and straightness.

[0032] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A steel bar bending device, comprising a bending machine body (1), characterized in that: A support plate (2) is installed on the front of the bending machine body (1). Multiple sets of support legs (6) are installed on the lower surface of the support plate (2). Rolling components (3) for rolling steel bars are installed on the upper and lower surfaces of the support plate (2). A drive component (4) for synchronously driving multiple sets of steel bars to move is slidably connected inside the support plate (2). A reset component (5) for resetting the position of the drive component (4) is installed on the outer end of the drive component (4) and the bending machine body (1). The rolling assembly (3) includes a first fixed plate (301), an L-shaped connecting plate (302), and a side plate (309). The first fixed plate (301) and the L-shaped connecting plate (302) are respectively installed on the upper and lower surfaces of the support plate (2). A motor (303) is installed at the bottom of the inner wall of the L-shaped connecting plate (302). The side plate (309) is installed on the upper surface of the support plate (2). A spring telescopic rod (310) is installed on the side of the side plate (309) near the first fixed plate (301). The spring telescopic rod (310) is located away from the side. A second fixing plate (311) is installed at one end of the plate (309). Two sets of rolling rolls (304) are rotatably connected inside the second fixing plate (311) and the first fixing plate (301). A third gear (314) is installed at the output end of the motor (303). The external teeth of the third gear (314) are meshed with a first gear (305). The first gear (305) is installed at the lower end of a set of rolling rolls (304) on the right front side. The lower ends of the two sets of rolling rolls (304) on the right side are meshed with a gear ring (306).

2. The steel bar bending device according to claim 1, characterized in that, The drive assembly (4) includes a connecting rope (401) and a rotating rod (407). The rotating rod (407) is rotatably connected to the inside of the support plate (2). The outer teeth of the third gear (314) are meshed with a fourth gear (406). The fourth gear (406) is mounted on the outer surface of the rotating rod (407). The lower end of the rotating rod (407) is hinged to a take-up roller (404). The connecting rope (401) is mounted on the outer end of the take-up roller (404). An L-shaped adjusting rod (402) is slidably connected inside the support plate (2). The end of the connecting rope (401) away from the take-up roller (404) is mounted on the lower end of the L-shaped adjusting rod (402).

3. A steel bar bending device according to claim 2, characterized in that, The reset assembly (5) includes two sets of connecting blocks (501), two sets of contact switches (502), and a reset spring (403). The contact switches (502) are installed on the side of the support plate (2) away from the bending machine body (1). The connecting blocks (501) are installed on the left and right sides of the L-shaped adjusting rod (402). The position of the contact switches (502) is located on the moving path of the connecting blocks (501). The reset spring (403) is installed inside the support plate (2). The end of the reset spring (403) away from the bending machine body (1) is installed on the side of the L-shaped adjusting rod (402) close to the bending machine body (1). The contact switches (502) and the control end of the rotating rod (407) are electrically connected.

4. A steel bar bending device according to claim 3, characterized in that, Both the second fixing plate (311) and the first fixing plate (301) are equipped with L-shaped limiting blocks (7) on the side near the return spring (403). The side of the L-shaped limiting block (7) away from the inner wall of the bending machine body (1) and the side of the rolling roll (304) near the return spring (403) are parallel.

5. A steel bar bending device according to claim 2, characterized in that, A limiting ring (405) is installed at the outer end of the take-up roller (404), and the limiting ring (405) is located directly below the fourth gear (406).

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