Steel bar bending device

By designing a steel bar bending device with a supporting base plate, cylinder, and transmission structure, the problem of traditional devices being unable to adapt to steel bars of different diameters was solved, achieving flexible bending and high-precision steel bar processing.

CN224238113UActive Publication Date: 2026-05-15CHANGCHUN WANLONG PREFABRICATED BUILDING PREFABRICATED COMPONENTS MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGCHUN WANLONG PREFABRICATED BUILDING PREFABRICATED COMPONENTS MANUFACTURING CO LTD
Filing Date
2025-05-26
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Traditional rebar bending devices cannot adapt to rebars of different diameters, and the bending angle adjustment is complicated, resulting in low efficiency and insufficient accuracy.

Method used

A rebar bending device was designed, comprising a support base plate, a cylinder, a rotating drum, and a transmission structure. The bending angle is controlled by adjusting the angle of the support plate through the cylinder and controlling the bending angle through the transmission structure. Combined with the design of grooves with different diameters, it can flexibly bend rebars of different diameters.

Benefits of technology

The device has improved its versatility and bending accuracy, simplified the operation process, and increased the efficiency and accuracy of steel bar bending.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of metal material processing equipment, in particular to a steel bar bending device, which is characterized in that a left cylinder and a right cylinder are respectively arranged on the left side and the right side above a supporting bottom plate, and the left side and the right side of a central bracket are respectively hinged with a left supporting plate and a right supporting plate; a left rotary drum with a bearing seat is arranged above the left supporting plate; a right rotary drum with a bearing seat II is arranged above the right supporting plate through a bolt; a roller is further arranged at the upper end of the center support and connected with the transmission structure. The grooves with the sizes gradually increased are formed in the left rotary drum, the right rotary drum and the rotary drum, the bending requirements of various steel bars with different diameters can be met, the extending lengths and speeds of the left air cylinder and the right air cylinder are controlled through the control switch box, the rotating angles of the left supporting plate and the right supporting plate are adjusted, and the bending efficiency is improved. And therefore, the included angles between the left rotating cylinder and the right rotating cylinder and the roller are adjusted, the bending angle of the reinforcing steel bar is controlled, and the bending precision is improved.
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Description

Technical Field

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

[0002] In fields such as construction and machinery manufacturing, steel bars, as a commonly used building material, often need to be bent into various shapes to meet different construction and design requirements. Traditional steel bar bending devices usually have a fixed structure, making it difficult to flexibly adjust for steel bars of different diameters. Moreover, the process of adjusting the bending angle is relatively complex, requiring a lot of manual operation and adjustment. This is not only inefficient but also prone to insufficient bending accuracy due to improper operation, affecting the quality of the project.

[0003] Therefore, there is an urgent need for a new type of steel bar bending device that can solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a rebar bending device to solve the problems of traditional rebar bending devices in the prior art being unable to adapt to rebars of different diameters and having complex bending angle adjustments, thereby enabling the bending of rebars of various diameters and solving the technical problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rebar bending device, comprising a supporting base plate; a left cylinder and a right cylinder are respectively arranged on the left and right sides above the supporting base plate, and a central support is vertically welded at the center position; the left and right sides of the central support are respectively hinged to the left and right supporting plates; the top end of the extension shaft of the left cylinder is hinged to the bottom left side of the left supporting plate, and a left rotating cylinder with a bearing seat is provided above the left supporting plate;

[0006] The top end of the extension shaft of the right cylinder is hinged to the bottom right side of the right support plate, and a right rotating cylinder with a bearing seat II is bolted on the top of the right support plate.

[0007] The upper end of the central support is also provided with a roller, which is connected to the transmission structure.

[0008] Furthermore, the right-turning cylinder, left-turning cylinder, and roller are all provided with several grooves, the size of which gradually increases; the shape and size of the grooves match the size of the reinforcing bars.

[0009] Furthermore, the central support includes a support frame, a right long support plate, and a left short support plate;

[0010] The support frame is vertically welded to the middle position above the support base plate; the two sides of the support frame are connected by bolts to a right long support plate and a left short support plate, which are set parallel to each other; the right side of the left support plate is hinged to the bottom end of the right long support plate and the top end of the left short support plate through a left pivot, and the left end of the right support plate is hinged to the bottom end of the right long support plate and the top end of the left short support plate through a right pivot.

[0011] Furthermore, the transmission structure includes a reducer, a side support plate, and a motor;

[0012] The side support plate is vertically fixed to the support base plate; the reducer and the motor are both fixedly mounted on the side support plate;

[0013] The roller is located at the upper end of the right long support plate; the upper end of the right long support plate is bolted with a roller with a reinforced bearing flange, the inner shaft of the roller passes through the right long support plate and is connected to the main shaft of the reducer, the reducer is fixed on one side of the side support plate, and a driven wheel is fixed on the main shaft of the other side of the reducer, the driven wheel is connected to the driving wheel on the motor through a belt to transmit power.

[0014] Furthermore, the transmission structure also includes a control switch box; the control switch box is fixed to the top of the side support plate by bolts.

[0015] Furthermore, the bottom of the supporting base plate is equipped with heavy-duty self-locking casters via bolts.

[0016] Beneficial effects

[0017] The left-turning drum, right-turning drum, and roller of this utility model are provided with several grooves of gradually increasing size. The shape and size of the grooves match the size of the reinforcing bars, which can meet the bending requirements of reinforcing bars of various diameters and improve the versatility of the device.

[0018] This invention controls the extension length and speed of the left and right cylinders through a control switch box, adjusts the rotation angle of the left and right support plates, and then adjusts the included angle between the left and right rotating cylinders and the roller, thereby controlling the bending angle of the reinforcing bar and improving bending accuracy. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 The three-dimensional steel bar bending device disclosed in this utility model Figure 1 ;

[0021] Figure 2 The three-dimensional steel bar bending device disclosed in this utility model Figure 2 ;

[0022] Figure 3 This is a front view of the steel bar bending device disclosed in this utility model;

[0023] Figure 4 This is a left view of the steel bar bending device disclosed in this utility model;

[0024] Figure 5 This is a schematic diagram of the left and right rotating cylinders of the steel bar bending device disclosed in this utility model;

[0025] Figure 6 This is a schematic diagram of the roller of the steel bar bending device disclosed in this utility model.

[0026] In the picture:

[0027] 1. Left support plate; 2. Bearing housing one; 3. Left rotating drum; 4. Reducer; 5. Side support plate; 6. Control switch box; 7. Motor; 8. Right rotating drum; 9. Bearing housing two; 10. Right support plate; 11. Right cylinder; 12. Right rotating shaft; 13. Left rotating shaft; 14. Support base plate; 15. Left cylinder; 16. Right long support plate; 17. Bearing flange; 18. Roller; 19. Left short support plate; 20. Support frame; 21. Belt; 22. Driven wheel; 23. Heavy-duty self-locking caster. Detailed Implementation

[0028] 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.

[0029] To achieve the above objectives, this utility model provides the following technical solution, such as... Figure 1-6 As shown, a rebar bending device includes a support base plate 14. A left cylinder 15 and a right cylinder 11 are respectively installed on the left and right sides above the support base plate 14. Hydraulic cylinders with appropriate length and stroke can also be selected here. A central support is vertically welded at the center position. The left and right sides of the central support are hinged to the left support plate 1 and the right support plate 10 respectively. The top end of the extension shaft of the left cylinder 15 is hinged to the bottom left side of the left support plate 1. A left rotating cylinder 3 with a bearing seat 2 is provided above the left support plate 1. The top end of the extension shaft of the right cylinder 11 is hinged to the bottom right side of the right support plate 10. A right rotating cylinder 8 with a bearing seat 9 is provided above the right support plate 10 by bolts. A roller 18 is also provided at the upper end of the central support, and the roller 18 is connected to the transmission structure.

[0030] Furthermore, the right-turning cylinder 8, the left-turning cylinder 1, and the roller 18 are all provided with several grooves, the size of which gradually increases; the grooves are used to guide the movement of the reinforcing bars; the shape and size of the grooves match the size of the reinforcing bars.

[0031] Furthermore, the central support includes a support frame 20, a right long support plate 16, and a left short support plate 19;

[0032] The support frame 20 is vertically welded to the middle position above the support base plate 14; the two sides of the support frame 20 are connected by bolts to a right long support plate 16 and a left short support plate 19, which are arranged parallel to each other; the right side of the left support plate 1 is hinged to the bottom end of the right long support plate 16 and the top end of the left short support plate 19 through a left pivot 13, and the left end of the right support plate 10 is hinged to the bottom end of the right long support plate 16 and the top end of the left short support plate 19 through a right pivot 12;

[0033] The central support serves as a load-bearing support and a hinge for the left support plate 1 and the right support plate 10.

[0034] Furthermore, the transmission structure includes a reducer 4, a side support plate 5, and a motor 7;

[0035] The side support plate 5 is vertically fixed on the support base plate 14; the reducer 4 and the motor 7 are both fixedly installed on the side support plate 5.

[0036] The roller 18 is mounted on the upper end of the right long support plate 16. The upper end of the right long support plate 16 is bolted with a roller 18 featuring a reinforced bearing flange 17. The inner shaft of the roller 18 passes through the right long support plate 16 and connects to the main shaft of the reducer 4. The reducer 4 is fixed to one side of the side support plate 5. A driven wheel 22 is fixed to the main shaft on the other side of the reducer 4. The driven wheel 22 is connected to the driving wheel on the motor 7 via a belt 21 to transmit power. The motor 7 is bolted to the rear side base plate of the side support plate 5.

[0037] Furthermore, a control switch box 6 is fixed to the top of the side support plate 5 by bolts, and the control switch box 6 is connected to the motor 7 via a power cord.

[0038] Furthermore, the left cylinder 15 and the right cylinder 11 are connected to an external high-pressure air source via a solenoid valve and an armored high-pressure hose, and the solenoid valve is connected to the control switch box 6 via a power line.

[0039] Furthermore, the bottom of the supporting base plate 14 is equipped with four sets of symmetrical heavy-duty self-locking casters 24 by bolts.

[0040] The working principle and process are as follows:

[0041] Based on the diameter of the rebar to be bent, select the corresponding grooves on the left rotating cylinder 13 and the right rotating cylinder 8. Adjust the left cylinder 15 and the right cylinder 11 to the retracted state, with their left support plate 1 and right support plate 10 in a horizontal position. Place the rebar to be bent on the groove on the left rotating cylinder 3 corresponding to the diameter of the rebar, and then place it on the corresponding groove on the right rotating cylinder 8 below the roller 18. Activate the corresponding knob on the control switch box 6 to set the extension length of the left cylinder 15 and the right cylinder 11, thereby adjusting the rotation angle of the left support plate 1 and the right support plate 10, so that the left rotating cylinder 3, the right rotating cylinder 8, and the roller 18 form the required bending angle.

[0042] The left cylinder 15 slowly extends upward to push the left support plate 1 to rotate upward, and the right cylinder 11 slowly extends upward to push the right support plate 10 to rotate upward. The roller 18 is driven by the motor 7 to rotate counterclockwise. The steel bar moves slowly from left to right. The left rotating cylinder 3 and the right rotating cylinder 8 cooperate with the roller 18 to form a certain angle. Under the combined action of the left rotating cylinder 3, the right rotating cylinder 8 and the roller 18, the steel bar is bent.

[0043] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A steel bar bending device, characterized in that: Includes a support base plate (14); a left cylinder (15) and a right cylinder (11) are respectively provided on the left and right sides above the support base plate (14), and a central support is vertically welded at the center position; the left and right sides of the central support are respectively hinged to the left support plate (1) and the right support plate (10); the top end of the extension shaft of the left cylinder (15) is hinged to the bottom left side of the left support plate (1), and a left rotating cylinder (3) with a bearing seat (2) is provided above the left support plate (1); The top end of the extension shaft of the right cylinder (11) is hinged to the bottom right side of the right support plate (10), and a right rotating cylinder (8) with a bearing seat (9) is provided above the right support plate (10) by bolts. The upper end of the central support is also provided with a roller (18), which is connected to the transmission structure.

2. The steel bar bending device according to claim 1, characterized in that: The right-turning cylinder (8), left-turning cylinder (3) and roller (18) are each provided with a number of grooves, and the size of the grooves gradually increases; the shape and size of the grooves match the size of the reinforcing bars.

3. The steel bar bending device according to claim 1, characterized in that: The central support includes a support frame (20), a right long support plate (16), and a left short support plate (19); The support frame (20) is vertically welded to the middle position above the support base plate (14); the two sides of the support frame (20) are connected by bolts to the right long support plate (16) and the left short support plate (19), which are arranged parallel to each other; the right side of the left support plate (1) is hinged to the bottom end of the right long support plate (16) and the top end of the left short support plate (19) through the left pivot (13), and the left side of the right support plate (10) is hinged to the bottom end of the right long support plate (16) and the top end of the left short support plate (19) through the right pivot (12).

4. A steel bar bending device according to claim 3, characterized in that: The transmission structure includes a reducer (4), a side support plate (5), and a motor (7); The side support plate (5) is vertically fixed on the support base plate (14); the reducer (4) and the motor (7) are both fixedly installed on the side support plate (5); The roller (18) is located at the upper end of the right long support plate (16); the upper end of the right long support plate (16) is provided with a roller (18) with a reinforced bearing flange (17) by bolts. The inner shaft of the roller (18) passes through the right long support plate (16) and is connected to the main shaft of the reducer (4). The reducer (4) is fixed on one side of the side support plate (5). A driven wheel (22) is fixed on the other side of the main shaft of the reducer (4). The driven wheel (22) is connected to the driving wheel on the motor (7) through the belt (21) to transmit power.

5. A steel bar bending device according to claim 4, characterized in that: The transmission structure also includes a control switch box (6); the control switch box (6) is fixed to the top of the side support plate (5) by bolts.

6. A steel bar bending device according to claim 1, characterized in that: The bottom of the supporting base plate (14) is equipped with four heavy-duty self-locking casters (23) by bolts.