A bend arc tool

By designing a bending tool with an installation frame, a lever, and a limiting mechanism, the instability caused by manual rebar bending tools relying on human experience was solved, and precise control of the rebar bending angle was achieved.

CN224309510UActive Publication Date: 2026-06-02YIDU HUAXUN INTELLIGENT CONVEYER CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YIDU HUAXUN INTELLIGENT CONVEYER CO LTD
Filing Date
2025-04-16
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Manually driven rebar bending tools rely on human experience, resulting in inconsistent bending results.

Method used

A bending tool including a mounting bracket, a bending component, and a limiting mechanism was designed. Through the cooperation of the baffle, column, and bending component, combined with a servo motor and worm gear transmission, stable bending of steel bars can be achieved.

Benefits of technology

This ensures the consistency of the angle after the steel bars are bent, and improves the stability and accuracy of the bending effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of bending tools, comprising: mounting bracket, pries and limiting mechanism;The mounting bracket includes the baffle and stand column being set to the upper surface of upper frame body;The pries includes the hinge block being set with the outside of the stand column, the upper surface of the hinge block is provided with bending piece, the stand column is through the hinge block and extends to the upper of the hinge block, the hinge block can rotate with the stand column as center;The limiting mechanism is set to the inside of the mounting bracket, and extend to the upper of the mounting bracket, the limiting mechanism is located on the movement path of the hinge block.The utility model is through the setting of mounting bracket, pries and limiting mechanism, by holding handle after driving pries and then bending steel bar, by limiting mechanism, the position of pries is limited when bending operation is carried out to steel bar, the angle after steel bar is bent is guaranteed consistent, realizes the effect that stable bending operation is carried out to steel bar.
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Description

Technical Field

[0001] This utility model relates to the field of bending tool technology, specifically to a bending tool. Background Technology

[0002] Bending tools, also known as bending tools, are tools used to bend steel bars. There are two types of these tools: one is an automatic tool driven by a motor, and the other is a more common manual tool driven by a hand.

[0003] When using a manually driven bending tool, the rebar is placed between the roller and the column, and the operator drives the bending device to apply external force to the rebar. At this time, the rebar bends with the column as the center. This method is more economical and convenient and is therefore very common in life. However, in actual use, the degree of bending of the rebar is only controlled by the user, which leads to an inability to control the effect of the bending. Therefore, a bending tool is proposed to solve the above-mentioned problems. Utility Model Content

[0004] Based on the above description, this utility model provides a bending tool to solve the problem that manual rebar bending tools rely too much on human experience when bending rebars, resulting in unstable bending effects.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a bending tool, comprising: a mounting frame, a bending component, and a limiting mechanism;

[0006] The mounting frame includes a baffle and a column disposed on the upper surface of the upper frame body, and there is a gap between the baffle and the column that allows the reinforcing bars to pass through;

[0007] The actuating component includes a hinge block sleeved on the outside of the column. The upper surface of the hinge block is provided with a bending element. The column passes through the hinge block and extends above the hinge block. The hinge block can rotate about the column as the center.

[0008] The limiting mechanism is disposed inside the mounting frame and extends above the mounting frame, and the limiting mechanism is located on the movement path of the hinge block.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, the mounting bracket includes a lower frame, which is screwed to the bottom of the upper frame. Both the lower frame and the upper frame have movable grooves on opposite sides, and the two movable grooves form a complete movable cavity.

[0011] Furthermore, the upper surface of the upper frame is provided with a placement platform and a baffle from bottom to top. The placement platform and the baffle are both located on one side of the column. The baffle and the column are staggered, that is, there is a gap between them that allows the reinforcing bars to pass through.

[0012] Furthermore, the upper surface of the upper frame is provided with an arc-shaped groove with an arc radius of at least π, the arc-shaped groove is interconnected with the movable cavity, the column is located at the center of the arc-shaped groove, and an angle scale is provided at the outer edge of the arc-shaped groove.

[0013] Furthermore, the actuating component includes a hinge block, the upper surface of which is provided with a connecting hole, the column extends through the connecting hole and above the connecting hole, and the column and the connecting hole are connected to each other by a bearing.

[0014] Furthermore, the hinge block and the placement platform are on the same horizontal plane, and a handle is provided on the side of the hinge block.

[0015] Furthermore, the bending member includes a vertical rod disposed on the upper surface of the hinge block, and the outer surface of the vertical rod is provided with rollers via bearings, and there is a gap between the rollers and the vertical rod that allows the reinforcing bars to pass through.

[0016] Furthermore, the limiting mechanism includes a worm gear and a rotating disk disposed inside the movable cavity via bearings. One end of the worm gear penetrates the side wall of the mounting frame, and the worm gear is kinetically connected to the rotating disk.

[0017] Furthermore, a servo motor is provided on the side of the mounting bracket, and the output shaft of the servo motor is connected to the worm gear. The servo motor can be controlled by a motor controller to rotate in both directions and rotate at different angles.

[0018] Furthermore, the rotating disk includes a rotating shaft, and a disc and a worm gear are sequentially sleeved on the outside of the rotating shaft from top to bottom. The worm gear and the worm are matched with each other to form a worm gear transmission. A limiting block is provided on the upper surface of the disc, which penetrates the arc-shaped groove and extends above the arc-shaped groove. A pointer is provided on the side of the limiting block away from the column.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0020] 1. This utility model, by setting up a mounting frame and a bending component, and through the cooperation between the baffle, the column and the bending component, allows the steel bar to be placed between the column and the bending component along the upper surface of the placement platform. By holding the handle and driving the bending component, the bending component is rotated around the column. At this time, one side of the steel bar is in contact with the column and the other side is in contact with the bending component. After the bending component is driven, the steel bar bends around the column.

[0021] 2. By setting up a limiting mechanism, the position of the bending component is restricted when bending the steel bar, that is, the movement angle of the bending component is restricted, thereby ensuring that the angle of the steel bar after bending is consistent and achieving the effect of stable bending operation of the steel bar. Attached Figure Description

[0022] Figure 1 A schematic diagram of the structure of a bending tool provided in an embodiment of this utility model;

[0023] Figure 2 for Figure 1 Structural sectional view;

[0024] Figure 3 for Figure 2 Another structural diagram from another perspective;

[0025] Figure 4 This is a schematic diagram of the mounting bracket in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the lever in an embodiment of the present utility model;

[0027] Figure 6 This is a schematic diagram of the rotating disk in an embodiment of the present invention;

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Mounting frame; 11. Lower frame; 12. Upper frame; 13. Movable slot; 14. Arc-shaped slot; 15. Angle scale; 16. Column; 17. Placement platform; 18. Baffle; 2. Actuating component; 21. Hinge block; 22. Connecting hole; 23. Upright pole; 24. Roller; 25. Handle; 3. Worm gear; 4. Rotating disk; 41. Rotating shaft; 42. Disc; 43. Worm gear; 44. Limit block; 45. Indicator; 5. Servo motor. Detailed Implementation

[0030] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0031] 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 application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0032] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0033] Example 1

[0034] Please see Figure 4 A bending tool includes: a mounting bracket 1, a bending component 2, and a limiting mechanism;

[0035] The mounting frame 1 includes a baffle 18 and a column 16 disposed on the upper surface of the upper frame 12, and there is a gap between the baffle 18 and the column 16 that allows the reinforcing bars to pass through.

[0036] The mounting frame 1 includes a lower frame 11, which is screwed to the bottom of the upper frame 12. The lower frame 11 and the upper frame 12 are provided with movable grooves 13 on opposite sides, and the two movable grooves 13 form a complete movable cavity. The upper surface of the upper frame 12 is provided with a placement platform 17 and a baffle 18 from bottom to top. The placement platform 17 and the baffle 18 are both provided on one side of the column 16, and the baffle 18 is staggered with the column 16.

[0037] The upper surface of the upper frame 12 is provided with an arc groove 14 with an arc of at least π. The arc groove 14 is connected to the movable cavity. The column 16 is located at the center of the arc groove 14. An angle scale 15 is provided at the outer edge of the arc groove 14.

[0038] Based on the above, after the reinforcing bar is placed on the placement platform 17, one end of the reinforcing bar contacts the baffle 18 and the other end contacts the column 16. When the bent end extends to the side of the column 16 away from the baffle 18, the reinforcing bar is simultaneously obstructed by the baffle 18 and the column 16, and its position is relatively fixed. When the reinforcing bar is bent, the baffle 18 and the column 16 prevent the reinforcing bar from rotating around the column 16 when it is bent, thus hindering the movement of the reinforcing bar.

[0039] like Figures 1-3 as well as Figure 5 As shown, the actuating member 2 includes a hinge block 21 sleeved on the outside of the column 16. The upper surface of the hinge block 21 is provided with a bending member. The column 16 passes through the hinge block 21 and extends above the hinge block 21. The hinge block 21 can rotate about the column 16 as the center.

[0040] The bending member 2 includes a hinge block 21, the upper surface of which is provided with a connecting hole 22. The column 16 extends through the connecting hole 22 and above it. The column 16 and the connecting hole 22 are connected to each other by a bearing. The hinge block 21 and the placement platform 17 are on the same horizontal plane. The side of the hinge block 21 is provided with a handle 25. The bending member includes a vertical rod 23 provided on the upper surface of the hinge block 21. The outer surface of the vertical rod 23 is provided with a roller 24 through a bearing. There is a gap between the roller 24 and the column 16 that allows the reinforcing bar to pass through.

[0041] Based on the above, the hinge block 21 is connected to the column 16 through the bearing. At this time, the hinge block 21 can rotate around the column 16 as the center. During this process, the bending part makes a circular motion around the column 16 as the center. The bending part that makes a circular motion applies external force to the steel bar, thereby causing the steel bar to bend. During the bending process, the roller 24 plays the role of reducing friction and avoiding excessive wear.

[0042] The hinge block 21 and the placement platform 17 cooperate with each other so that when the steel bar passes between the roller 24 and the column 16, the steel bar can be supported by both the hinge block 21 and the placement platform 17 at the same time.

[0043] like Figures 1-3 as well as Figure 6 As shown, the limiting mechanism is disposed inside the mounting frame 1 and extends above the mounting frame 1, and the limiting mechanism is located on the movement path of the hinge block 21;

[0044] The limiting mechanism includes a worm gear 3 and a rotating disk 4 disposed inside the movable cavity via bearings. One end of the worm gear 3 passes through the side wall of the mounting frame 1, and the worm gear 3 is connected to the rotating disk 4 in a transmission manner.

[0045] A servo motor 5 is provided on the side of the mounting bracket 1. The output shaft of the servo motor 5 is connected to the worm gear 3. The servo motor 5 can be controlled by a motor controller to rotate forward and backward and rotate at an angle.

[0046] The rotating disk 4 includes a rotating shaft 41. A disc 42 and a worm gear 43 are sequentially sleeved on the outside of the rotating shaft 41 from top to bottom. The worm gear 43 is matched with the worm 3 to form a worm gear transmission. A limiting block 44 is provided on the upper surface of the disc 42, which penetrates the arc-shaped groove 14 and extends above the arc-shaped groove 14. An indicator 45 is provided on the side of the limiting block 44 away from the column 16.

[0047] Based on the above, the motor controller is a common existing technology (the motor controller with model KYDAS4401A is preferred), especially the motor controller that is matched with the servo motor 5 (the servo motor with model A7M15CUB is preferred). The motor controller controls the rotation of the servo motor 5, which in turn drives the worm gear 3 to rotate. Under the transmission of the worm gear 3, the worm wheel 43 rotates around the rotating shaft 41. At this time, the limit block 44 moves along the direction of the arc groove 14 with the rotating disk 4, thereby changing the position of the limit block 44, so that the movement range of the bending part 2 is limited, that is, the maximum angle of the bending part 2 is constant, ensuring that the bending angle is constant every time the steel bar is bent.

[0048] By coordinating the pointer 45 and the angle scale 15, the position and angle of the limit block 44 can be observed intuitively, making it more convenient for users to use.

[0049] Example 2

[0050] Based on Embodiment 1, the worm 3 extends to the outside of the mounting bracket 1, and a rotating handle is provided at the end of the worm 3 located outside the mounting bracket 1;

[0051] Based on the above, by replacing the servo motor 5 with a rotating handle, the overall manufacturing cost of the tool is reduced, and the manual rotation of the worm gear 3 does not affect the use of the device.

[0052] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bend arc tool characterized by, include: Mounting bracket (1), lever (2), and limiting mechanism; The mounting frame (1) includes a baffle (18) and a column (16) disposed on the upper surface of the upper frame (12), and there is a gap between the baffle (18) and the column (16) that allows the reinforcing bars to pass through; The lever (2) includes a hinge block (21) sleeved on the outside of the column (16). The upper surface of the hinge block (21) is provided with a bending member. The column (16) passes through the hinge block (21) and extends to the top of the hinge block (21). The hinge block (21) can rotate about the column (16) as the center. The limiting mechanism is located inside the mounting bracket (1) and extends above the mounting bracket (1). The limiting mechanism is located on the movement path of the hinge block (21).

2. The arc bending tool of claim 1, wherein, The mounting bracket (1) includes a lower frame (11), which is screwed to the bottom of the upper frame (12). The lower frame (11) and the upper frame (12) are provided with movable grooves (13) on opposite sides, and the two movable grooves (13) form a complete movable cavity.

3. The arc bending tool of claim 2, wherein, The upper surface of the upper frame (12) is provided with a placement platform (17) and a baffle (18) from bottom to top. The placement platform (17) and the baffle (18) are both located on one side of the column (16), and the baffle (18) and the column (16) are staggered.

4. The arc bending tool of claim 2, wherein, The upper surface of the upper frame (12) is provided with an arc groove (14) with an arc of at least π. The arc groove (14) is connected to the movable cavity. The column (16) is located at the center of the arc groove (14). An angle scale (15) is provided at the outer edge of the arc groove (14).

5. The arc bending tool of claim 3, wherein, The actuating component (2) includes a hinge block (21), and a connecting hole (22) is provided on the upper surface of the hinge block (21). The column (16) extends through the connecting hole (22) and extends above the connecting hole (22). The column (16) and the connecting hole (22) are connected to each other by a bearing.

6. The arc bending tool of claim 5, wherein, The hinge block (21) and the placement platform (17) are on the same horizontal plane, and a handle (25) is provided on the side of the hinge block (21).

7. The arc bending tool of claim 6, wherein, The bending member includes a pole (23) disposed on the upper surface of the hinge block (21), and a roller (24) is disposed on the outer surface of the pole (23) via a bearing. There is a gap between the roller (24) and the column (16) that allows the reinforcing bar to pass through.

8. The arc bending tool of claim 4, wherein, The limiting mechanism includes a worm (3) and a rotating disk (4) disposed inside the movable cavity via bearings. One end of the worm (3) passes through the side wall of the mounting frame (1), and the worm (3) is connected to the rotating disk (4) in a transmission manner.

9. The arc bending tool of claim 8, wherein, A servo motor (5) is provided on the side of the mounting bracket (1). The output shaft of the servo motor (5) is connected to the worm gear (3). The servo motor (5) can be controlled by the motor controller to rotate forward and backward and rotate at different angles.

10. The arc bending tool of claim 9, wherein, The rotating disc (4) comprises a rotating shaft (41), the outside of the rotating shaft (41) is sequentially sleeved with a disc (42) and a worm gear (43) from top to bottom, the worm gear (43) is matched with the worm (3), that is, worm and gear transmission is formed, the upper surface of the disc (42) is provided with a limiting block (44) penetrating through the arc-shaped groove (14) and extending above the arc-shaped groove (14), the side, away from the stand (16), of the limiting block (44) is provided with a pointing mark (45).