Reinforcing bar bender

By combining the design of the limit plate and the bending top seat, along with the scale and servo motor, the problems of insufficient bending position accuracy and low efficiency of existing rebar bending machines are solved, achieving high-precision and high-efficiency rebar bending.

CN224487498UActive Publication Date: 2026-07-14GUANGDONG JIAHAO CONSTR CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG JIAHAO CONSTR CO LTD
Filing Date
2025-08-15
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing rebar bending machines lack accuracy in bending position and have low processing efficiency, failing to efficiently meet construction needs.

Method used

The design combines a limiting plate and a bending top seat. Through precise adjustment of the limiting plate and drive of the drive component, accurate positioning and efficient bending of the reinforcing bar are achieved. Combined with the use of a scale and a servo motor, the accuracy and efficiency of the bending position are ensured.

Benefits of technology

It achieves high-precision and efficient processing of the bending position of steel bars, improves construction efficiency, and meets the needs of fast and accurate building construction.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of reinforcing bar bending machine, it is related to construction equipment field, it includes workbench, a pair of positioning column, bending top seat and a pair of limit plate, two described positioning column horizontal opposite setting on described workbench, described bending top seat is installed on described workbench towards the position sliding between two described positioning column close or away, and described workbench is equipped with the first driving part for driving described bending top seat to slide;Two described limit plate are oppositely arranged and respectively located on the two sides of the sliding direction of described bending top seat, and two described limit plate are all installed on described workbench towards the horizontal sliding perpendicular to the sliding direction of described bending top seat;Described workbench is equipped with the first driving assembly of respectively driving two described limit plate to slide.The utility model has the effect of improving bending position accuracy and processing efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of construction equipment technology, and more specifically, to a rebar bending machine. Background Technology

[0002] A rebar bending machine is a specialized piece of equipment used in construction engineering to bend pre-cut rebar. Through a hydraulic or electric drive system, and with adjustable molds, it can quickly and accurately bend rebar to the required angle. It is mainly used in industries such as construction.

[0003] The existing rebar bending machine includes a worktable, a pair of positioning columns and a bending top seat. The two positioning columns are set horizontally opposite each other, and the bending top seat is slidably installed on the worktable towards or away from the position between the two positioning columns. The worktable is equipped with a device to drive the bending top seat to slide. It is mainly used to bend the already cut rebar.

[0004] However, in actual use, it is often necessary to bend the cut steel bars at the corresponding positions according to the actual construction process. However, in the above-mentioned existing technology, the operator can only measure the position of the steel bars on the workbench by visual inspection or by setting up another ruler, so that the steel bars are bent at the required position. This processing method not only has the problem of insufficient accuracy in bending position, but also has low processing efficiency. Utility Model Content

[0005] Therefore, in order to solve the problems of insufficient positional accuracy in bending steel bars and low overall processing efficiency, this utility model provides a steel bar bending machine, the specific technical solution of which is as follows:

[0006] A rebar bending machine includes a worktable, a pair of positioning columns, a bending top seat, and a pair of limiting plates. The two positioning columns are horizontally arranged opposite each other on the worktable. The bending top seat is slidably mounted on the worktable towards or away from the position between the two positioning columns. The worktable is equipped with a first driving component for driving the bending top seat to slide. The two limiting plates are arranged opposite each other and are respectively located on both sides of the sliding direction of the bending top seat. Both limiting plates are horizontally slidably mounted on the worktable in a direction perpendicular to the sliding direction of the bending top seat. The worktable is equipped with a first driving component for driving the two limiting plates to slide.

[0007] By adopting the above technical solution, before use, the first driving component drives the two limiting plates to slide to the appropriate position. During use, the cut steel bars are placed between the two limiting plates, with both ends of the steel bars abutting against the two limiting plates. At this time, the position to be bent on the steel bars is directly opposite the bending top seat. The first driving component is activated, driving the bending top seat to slide between the two positioning columns. Through the positioning action of the two positioning columns, the bending top seat can smoothly bend the steel bars. If it is necessary to process the same batch of steel bars at the same bending position, it is only necessary to adjust the position of the limiting plates once to complete the processing of the batch of steel bars. The bending position is accurate and the processing efficiency is high. If it is necessary to change the bending position, the first driving component can be used to drive the two limiting plates to adjust to the appropriate position.

[0008] Furthermore, a first driving assembly is installed on the worktable at the position of each of the two limiting plates. The first driving assembly includes a sliding seat and a driving screw. A sliding groove is provided on the worktable at the position corresponding to the two limiting plates. The sliding seat is installed on the bottom of the limiting plate and is slidably installed in the sliding groove. The driving screw is rotatably installed in the sliding groove. The sliding seat is threaded onto the driving screw. One end of the driving screw extends out of the worktable.

[0009] Furthermore, a turning ring is fixedly installed at one end of the drive screw that extends outside the worktable.

[0010] Furthermore, a scale is provided on the worktable at the position corresponding to the sliding groove, and a pointer is installed on the sliding seat, the pointer pointing to the scale on the scale.

[0011] Furthermore, the limiting plate and the sliding seat are detachably connected via a connecting assembly.

[0012] Furthermore, the connecting assembly includes a connecting plate and a pair of connecting bolts, with the two ends of the connecting plate abutting against the limiting plate and the sliding seat respectively; the two connecting bolts are respectively passed through the two ends of the connecting plate and are respectively threaded onto the limiting plate and the sliding seat.

[0013] Furthermore, the worktable is provided with adjustment grooves corresponding to the positions of the two positioning columns, and the extension direction of the adjustment grooves is parallel to the sliding direction of the limiting plate; the two positioning columns are slidably installed in the adjustment grooves in a direction that moves closer to or further away from each other, and the worktable is equipped with a second driving component for driving the two positioning columns to slide.

[0014] Furthermore, the second drive assembly includes a pair of adjusting seats, a bidirectional lead screw, and a second drive member. The two adjusting seats are respectively fixedly installed at the bottom of the two positioning columns, and the adjusting seats are slidably installed in the adjusting groove. The bidirectional lead screw is rotatably installed in the worktable, and the two adjusting seats are respectively threaded to opposite positions on the threads of the bidirectional lead screw. The second drive member is used to drive the bidirectional lead screw to rotate.

[0015] Furthermore, the second driving component includes a driving pulley, a driven pulley, a belt, and a servo motor. The servo motor is fixedly installed inside the worktable. The driving pulley is sleeved on the output shaft of the servo motor. The driven pulley is sleeved on the bidirectional lead screw. The belt is wound around both the driving pulley and the driven pulley.

[0016] Furthermore, the first driving component includes a hydraulic cylinder, which is fixedly mounted on the worktable, and the piston rod of the hydraulic cylinder is fixedly mounted on the bending top seat. Attached Figure Description

[0017] The present invention can be further understood from the following description taken in conjunction with the accompanying drawings. The components in the drawings are not necessarily drawn to scale; rather, the focus is on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0019] Figure 2 yes Figure 1 A magnified view of part A in the image;

[0020] Figure 3 yes Figure 1 A magnified view of part B in the image;

[0021] Figure 4 This is a schematic diagram of the structure of the second driving component according to an embodiment of the present invention;

[0022] Figure 5 yes Figure 4 A magnified view of part C.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Worktable; 11. Sliding groove; 12. Scale; 13. Adjustment groove; 2. Positioning column; 3. Bending top seat; 4. Limiting plate; 5. First driving component; 6. First driving assembly; 61. Sliding seat; 611. Pointer; 62. Drive screw; 63. Tightening ring; 7. Connecting assembly; 71. Connecting plate; 72. Connecting bolt; 8. Second driving assembly; 81. Adjustment seat; 82. Bidirectional screw; 83. Second driving component; 831. Driving pulley; 832. Driven pulley; 833. Belt; 834. Servo motor. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with its embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit its scope of protection.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] In this utility model, "first" and "second" do not represent a specific quantity or order, but are merely used to distinguish names.

[0029] like Figure 1As shown, a rebar bending machine according to one embodiment of the present invention includes a worktable 1, a pair of positioning columns 2, a bending top seat 3, and a pair of limiting plates 4. The positioning columns 2 are cylindrical and are horizontally arranged opposite each other on the worktable 1. The bending top seat 3 is slidably installed on the worktable 1 towards or away from the position between the two positioning columns 2. The worktable 1 is equipped with a first driving member 5 for driving the bending top seat 3 to slide. The first driving member 5 includes a hydraulic cylinder, which is fixedly installed on the worktable 1, and the piston rod of the hydraulic cylinder is fixedly installed on the bending top seat 3. Thus, the cut rebar is placed between the two positioning columns 2 and the bending top seat 3, and then the first driving member 5 is activated to drive the bending top seat 3 to slide towards the position between the two positioning columns 2, thereby bending the rebar.

[0030] like Figure 1 and Figure 2 As shown, two limiting plates 4 are arranged opposite each other and are located on both sides of the sliding direction of the curved top seat 3. Both limiting plates 4 are horizontally slidably installed on the worktable 1 in a direction perpendicular to the sliding direction of the curved top seat 3. The worktable 1 is equipped with a first driving assembly 6 that drives the two limiting plates 4 to slide.

[0031] A first drive assembly 6 is installed on each of the two limiting plates 4 on the worktable 1. The first drive assembly 6 includes a sliding seat 61 and a drive screw 62. A sliding groove 11 is provided on the worktable 1 at the position corresponding to the two limiting plates 4. The sliding groove 11 extends in the direction of the arrangement of the two limiting plates 4. The sliding seat 61 is installed at the bottom of the limiting plate 4 and is slidably installed in the sliding groove 11. The drive screw 62 extends in the direction of extension of the sliding groove 11 and is rotatably installed in the sliding groove 11. The sliding seat 61 is threadedly installed on the drive screw 62. One end of the drive screw 62 extends out of the worktable 1 and is fixedly installed with a turning ring 63.

[0032] Therefore, when it is necessary to adjust the position of the limiting plate 4, the rotating ring 63 is rotated to drive the drive screw 62 to rotate, thereby driving the limiting plate 4 to move.

[0033] Furthermore, refer to Figure 1 and Figure 3 As shown, a scale 12 is provided on the workbench 1 at the position corresponding to the sliding groove 11. The scale of the scale 12 is arranged in the direction of the length of the sliding groove 11. A pointer 611 is fixedly installed on the side wall of the sliding seat 61, and the pointer 611 points to the scale on the scale 12; thus, the position of the limit plate 4 can be accurately adjusted.

[0034] like Figure 1 and Figure 2As shown, the limiting plate 4 and the sliding seat 61 are detachably connected by a connecting assembly 7. The connecting assembly 7 includes a connecting plate 71 and a pair of connecting bolts 72. The two ends of the connecting plate 71 abut against the limiting plate 4 and the sliding seat 61, respectively. The two connecting bolts 72 are respectively threaded through the two ends of the connecting plate 71 and are respectively threaded onto the limiting plate 4 and the sliding seat 61. This allows for convenient disassembly, assembly, and replacement of the limiting plate 4.

[0035] like Figure 1 , Figure 4 and Figure 5 As shown, the worktable 1 has adjustment grooves 13 at the positions of the two positioning posts 2. The extension direction of the adjustment grooves 13 is parallel to the sliding direction of the limiting plate 4. The two positioning posts 2 are slidably installed in the adjustment grooves 13 in the direction of moving closer or further away from each other. The worktable 1 is equipped with a second drive assembly 8 for driving the two positioning posts 2 to slide.

[0036] The second drive assembly 8 includes a pair of adjusting seats 81, a bidirectional lead screw 82, and a second drive member 83. The two adjusting seats 81 are respectively fixedly installed at the bottom of the two positioning columns 2, and the adjusting seats 81 are slidably installed in the adjusting groove 13. The bidirectional lead screw 82 is rotatably installed in the worktable 1, and the two adjusting seats 81 are respectively threaded at opposite positions of the threads of the bidirectional lead screw 82. The second drive member 83 is used to drive the bidirectional lead screw 82 to rotate.

[0037] The second driving component 83 includes a driving pulley 831, a driven pulley 832, a belt 833, and a servo motor 834. The servo motor 834 is fixedly installed inside the worktable 1. The driving pulley 831 is sleeved on the output shaft of the servo motor 834, the driven pulley 832 is sleeved on the bidirectional lead screw 82, and the belt 833 is wound around both the driving pulley 831 and the driven pulley 832.

[0038] This activates the servo motor 834, which drives the bidirectional lead screw 82 to rotate, thereby causing the two adjusting seats 81 to slide towards or away from each other. The position between the two adjusting seats 81 can be adjusted according to the bending requirements of the reinforcing bars.

[0039] The implementation principle of a rebar bending machine according to an embodiment of this application is as follows: Before use, the two limiting plates 4 are slid to suitable positions by rotating the twisting ring 63; during use, the cut rebar is placed between the two limiting plates 4, with both ends of the rebar abutting against the two limiting plates 4 respectively, and the position to be bent of the rebar is directly opposite the bending top seat 3; the first driving component 5 is activated, causing the bending top seat 3 to slide between the two positioning columns 2. Through the positioning action of the two positioning columns 2, the bending top seat 3 can smoothly bend the rebar; if it is necessary to process the same batch of rebars at the same bending position, the position of the limiting plate 4 only needs to be adjusted once to complete the processing of the batch of rebars, with accurate bending position and high processing efficiency; if it is necessary to change the bending position, the two limiting plates 4 can be adjusted to suitable positions by rotating the twisting ring 63.

[0040] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A reinforcing bar bender characterised in that, The utility model provides a workbench, a pair of positioning column, curved top seat and a pair of limiting plate, two positioning column horizontal opposite setting on the workbench, curved top seat is close to or far from two positioning column between position sliding mode installation on the workbench, the workbench is equipped with the first drive spare for drive curved top seat sliding, two limiting plate opposite setting and respectively located in the sliding direction both sides of curved top seat, two limiting plate all are towards perpendicular to the horizontal sliding mode installation of sliding direction of curved top seat on the workbench, the workbench is equipped with the first drive assembly of drive two limiting plate sliding respectively.

2. A bar bender as claimed in claim 1, characterised in that, The workbench is installed with a first drive assembly at the position of the two limiting plates, the first drive assembly comprises a sliding seat and a drive screw, the workbench is provided with a sliding groove at the position corresponding to the two limiting plates, the sliding seat is installed at the bottom of the limiting plate, and the sliding seat is slidingly installed in the sliding groove; the drive screw is rotatably installed in the sliding groove, the sliding seat is threadedly installed on the drive screw, and one end of the drive screw extends out of the workbench.

3. A bar bender as claimed in claim 2, characterised in that, The end of the drive screw extending out of the workbench is fixedly installed with a twisting ring.

4. A reinforcing bar bender as claimed in claim 2 wherein, The workbench is provided with a scale at the position corresponding to the sliding groove, and the sliding seat is provided with a pointer pointing to the scale.

5. A reinforcing bar bender as claimed in claim 2 wherein, The limiting plate and the sliding seat are detachably connected through a connecting assembly.

6. A reinforcing bar bender as claimed in claim 5 wherein, The connecting assembly comprises a connecting plate and a pair of connecting bolts, the two ends of the connecting plate abut against the limiting plate and the sliding seat respectively, the two connecting bolts are respectively provided on the two ends of the connecting plate, and the two connecting bolts are threadedly installed on the limiting plate and the sliding seat respectively.

7. A rebar bender as defined in claim 1, wherein, The workbench is provided with an adjusting groove at the position corresponding to the two positioning columns, the extending direction of the adjusting groove is parallel to the sliding direction of the limiting plate, the two positioning columns are slidingly installed in the adjusting groove in the direction of approaching or moving away from each other, and the workbench is provided with a second drive assembly for driving the two positioning columns to slide.

8. A bar bender as claimed in claim 7, characterised in that, The second drive assembly comprises a pair of adjusting seats, a bidirectional screw and a second drive member, the two adjusting seats are fixedly installed at the bottom of the two positioning columns respectively, the adjusting seat is slidingly installed in the adjusting groove, the bidirectional screw is rotatably installed in the workbench, and the two adjusting seats are threadedly installed at the positions opposite to each other on the bidirectional screw; the second drive member is used for driving the bidirectional screw to rotate.

9. A bar bender as claimed in claim 8, characterised in that, The second drive member comprises a driving pulley, a driven pulley, a belt and a servo motor, the servo motor is fixedly installed in the workbench, the driving pulley is sleeved on the output shaft of the servo motor, the driven pulley is sleeved on the bidirectional screw, and the belt is wound around the driving pulley and the driven pulley.

10. A rebar bender as defined in claim 1, wherein, The first drive member comprises a hydraulic cylinder, the hydraulic cylinder is fixedly installed on the workbench, and the piston rod of the hydraulic cylinder is fixedly installed on the curved top seat.