Rebar processing equipment for engineering construction

By using a servo motor-driven bending structure and turntable adjustment technology, the rebar bending machine achieves efficient and precise processing of rebars of different diameters, solving the problems of low efficiency and unstable accuracy in existing technologies.

CN224673668UActive Publication Date: 2026-08-25HUBEI BOCHENG CONSTRUCTION ENGINEERING CO LTD
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Patent Information

Application Number
CN202521722228.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-13
Publication Date
2026-08-25
Estimated Expiration
2035-08-13

AI Technical Summary

Technical Problem

Existing rebar bending machines require stopping to replace the forming shaft when processing rebars of different diameters, which affects efficiency and results in unstable accuracy, making it difficult to achieve efficient and precise rebar bending.

Method used

The bending structure is driven by a servo motor. The sliding structure between the turntable and the arc groove enables rapid adjustment of the distance between the forming shaft and the bending mandrel. Combined with the locking mechanism of the positioning block and the concave block, the stability and accuracy of the steel bar bending process are ensured.

Benefits of technology

It improves the efficiency and accuracy of rebar bending, is applicable to the processing of rebars of different diameters, reduces mold changing operations, and ensures the consistency of rebar bending dimensions.

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Abstract

The utility model relates to a kind of steel bar processing equipment for engineering construction, including steel bar processing bending machine and support strip, bending structure is arranged on the steel bar processing bending machine, and the bending structure includes servo motor fixedly installed in the inside of steel bar processing bending machine.This steel bar processing equipment for engineering construction utilizes the sliding structure of carousel and arc-shaped groove, realizes the spacing between forming shaft and bending mandrel with tool-free quick adjustment, improves production efficiency, and adjustable spacing design makes equipment applicable to different diameter steel bar bending processing, reduces the cumbersome operation of replacing mould, and the locking mechanism of positioning block and concave block, and coaxial design, solve the displacement problem of forming piece caused by vibration during processing, guarantee the consistency of steel bar bending size, the whole scheme utilizes servo motor drive, and mechanical positioning adjustment, realize the accurate control of angle and spacing in steel bar bending process, and avoid forming shaft replacement to affect processing efficiency etc.
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Description

Technical Field

[0001] This utility model relates to the field of steel bar processing technology in engineering construction, specifically to a steel bar processing equipment used in engineering construction. Background Technology

[0002] Steel bar processing in engineering construction involves transforming raw steel bars into components or semi-finished products that meet design requirements through a series of processes, including rust removal, straightening, cutting, bending, and connecting. Among these processes, steel bar bending refers to using a steel bar bending machine to process straight steel bars into curved shapes according to design drawings. The bending mandrel of the steel bar bending machine is a key component that determines the bending radius. Its diameter is usually 2.5d and needs to be replaced according to the specifications of the steel bars. During normal use, the straight section of the steel bar is placed close to the bending mandrel and the positioning mandrel. Then, the motor is started, and the bending mandrel rotates around the positioning mandrel through the working disc, thereby achieving the bending of the steel bar.

[0003] Chinese Patent Publication No. CN106955948A discloses a rebar bending machine. In the actual rebar processing, the positions of the forming shaft and the bending mandrel are relatively fixed. When bending rebars of different diameters, the operator needs to manually replace the forming shaft of the corresponding size, which requires stopping the machine for replacement, thus affecting the efficiency of rebar bending. Moreover, the operator inserts the forming shaft into the working disc and uses screws to position the forming shaft. However, the degree of tightening of the screws cannot be precisely controlled. If the screws are too loose, the rebar positioning will be unstable. If the screws are too tight, the frictional force distribution between the rebar and the forming shaft and bending mandrel will be uneven, causing the rebar to shift to the side with greater force when bending, thus affecting the bending accuracy of the rebar. Therefore, a rebar processing equipment for engineering construction is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a steel bar processing equipment for engineering construction. It has the advantage of efficiently adjusting the distance between the forming shaft and the bending mandrel, solving the problem that in actual steel bar processing, the positions of the forming shaft and the bending mandrel are relatively fixed. When bending steel bars of different diameters, workers need to manually replace the forming shaft of the corresponding size, which requires stopping the machine for replacement, thus affecting the efficiency of steel bar bending. Moreover, manual installation by workers affects the bending accuracy of the steel bars.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a steel bar processing equipment for engineering construction, comprising a steel bar processing and bending machine and a support bar, wherein the steel bar processing and bending machine is provided with a bending structure; The bending structure includes a servo motor fixedly installed inside the rebar bending machine. A support is provided on the output shaft of the servo motor. An adjusting component is rotatably installed on the support. A working component is fixedly installed on the support. A bending mandrel and a forming component for bending rebar are installed on the working component. The adjusting component is used to control the distance between the bending mandrel and the forming component. The molded part includes a guide block, a connecting rod is fixedly installed on the guide block, and a forming shaft for bending the reinforcing bar is fixedly installed on the connecting rod; The working part includes a drive disk, and a bending mandrel is fixedly installed on the top of the drive disk. The drive disk has a guide groove that matches the guide block. The adjusting component includes a turntable rotatably mounted on a support member. The turntable has an arc-shaped groove that is slidably connected to a connecting rod, and one end of the connecting rod passes through the guide groove and extends into the interior of the arc-shaped groove.

[0006] Furthermore, the support includes a tray fixedly connected to the output shaft of the servo motor, a connecting column fixedly installed on the tray, and a turntable rotatably mounted on the connecting column. The top of the connecting column is fixedly connected to the drive disk, and several positioning blocks are fixedly installed on the outer peripheral wall of the tray.

[0007] Furthermore, a connecting frame is fixedly installed on the outer peripheral wall of the turntable, and a concave block is rotatably installed on the connecting frame, and the concave block is adapted to the positioning block. Several window slots are opened on the turntable.

[0008] Furthermore, the tray is rotatably mounted on the top of the rebar bending machine, and the tray, turntable, and drive disc are all located on the central axis of the bending mandrel.

[0009] Furthermore, the number of positioning blocks is no less than nine, and they are distributed in a fan-shaped arc on the outer peripheral wall of the tray, with the included angle between two adjacent positioning blocks being ten degrees.

[0010] Compared with the prior art, the technical solution of this application has the following beneficial effects: This steel bar processing equipment for engineering construction features a bending structure. Utilizing a sliding mechanism between a turntable and an arc-shaped groove, it allows for tool-free, rapid adjustment of the distance between the forming shaft and the bending mandrel, improving production efficiency. The adjustable distance design makes the equipment suitable for bending steel bars of different diameters, reducing the cumbersome operation of changing molds. Furthermore, the locking mechanism of the positioning block and concave block, along with the coaxial design, solves the problem of part displacement caused by vibration during processing, ensuring the consistency of the bent steel bar dimensions. The entire solution utilizes servo motor drive and mechanical positioning adjustment to achieve precise control of the angle and distance during steel bar bending, and avoids the impact of changing the forming shaft on processing efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the bending structure of this utility model; Figure 3 This is an exploded view of the bending structure of this utility model; Figure 4 This is a schematic diagram of the structural support component, adjusting component, and working component of this utility model; Figure 5 This is a schematic diagram of the structural adjustment component and the molded component of this utility model; Figure 6 This is a schematic diagram of the structural molding part of this utility model.

[0012] In the diagram: 1. Rebar bending machine; 2. Support bar; 3. Bending structure; 31. Servo motor; 32. Support component; 321. Tray; 322. Connecting column; 323. Positioning block; 33. Adjusting component; 331. Turntable; 332. Arc groove; 333. Window groove; 334. Connecting frame; 335. Concave block; 34. Working part; 341. Drive disk; 342. Guide groove; 35. Bending mandrel; 36. Forming part; 361. Guide block; 362. Connecting rod; 363. Forming shaft. Detailed Implementation

[0013] 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.

[0014] Example 1: Please refer to Figure 1-6 This embodiment includes a steel bar processing equipment for engineering construction, comprising a steel bar processing bending machine 1 and a support bar 2, wherein the steel bar processing bending machine 1 is provided with a bending structure 3.

[0015] Example 2: Please refer to Figure 1-6 Based on Embodiment 1, the bending structure 3 includes a servo motor 31 fixedly installed inside the steel bar processing bending machine 1. A support member 32 is provided on the output shaft of the servo motor 31. An adjusting member 33 is rotatably installed on the support member 32. A working part 34 is fixedly installed on the support member 32. A bending mandrel 35 for bending steel bars and a forming part 36 are installed on the working part 34. The adjusting member 33 is used to control the distance between the bending mandrel 35 and the forming part 36.

[0016] The forming component 36 includes a guide block 361, a connecting rod 362 fixedly installed on the guide block 361, and a forming shaft 363 for bending the reinforcing bar fixedly installed on the connecting rod 362. The bending of the reinforcing bar is achieved by the bending mandrel 35 rotating on its own axis and the forming shaft 363 revolving around the bending mandrel 35.

[0017] In addition, the working part 34 includes a drive disk 341, and the bending mandrel 35 is fixedly installed on the top of the drive disk 341. The drive disk 341 is provided with a guide groove 342 that is adapted to the guide block 361. The guide block 361 and the guide groove 342 ensure the straightness of the movement of the forming part 36 and ensure the accuracy of the bending angle.

[0018] It should be noted that the adjusting component 33 includes a turntable 331 rotatably mounted on the support component 32. The turntable 331 has an arc-shaped groove 332 that is slidably connected to the connecting rod 362. One end of the connecting rod 362 passes through the guide groove 342 and extends into the interior of the arc-shaped groove 332. When the turntable 331 is rotated, the trajectory of the arc-shaped groove 332 will push the connecting rod 362 to slide in the guide groove 342, thereby causing the forming shaft 363 to move closer to or away from the bending mandrel 35.

[0019] Using the above technical solution, the turntable 331 of the adjusting component 33 can rotate around the connecting column 322. The arc groove 332 on the turntable 331 is slidably connected to the connecting rod 362 of the forming component 36. When the turntable 331 is rotated, the trajectory of the arc groove 332 will push the connecting rod 362 to slide in the guide groove 342, thereby driving the forming shaft 363 to move closer to or away from the bending mandrel 35, so as to achieve precise adjustment of the distance between the forming shaft 363 and the bending mandrel 35.

[0020] Example 3: Please refer to Figure 1-6 Based on Embodiment 2, the support member 32 includes a tray 321 fixedly connected to the output shaft of the servo motor 31. A connecting column 322 is fixedly installed on the tray 321, and the turntable 331 is rotatably installed on the connecting column 322. The top of the connecting column 322 is fixedly connected to the drive disk 341. Several positioning blocks 323 are fixedly installed on the outer peripheral wall of the tray 321.

[0021] A connecting frame 334 is fixedly installed on the outer peripheral wall of the turntable 331. A concave block 335 is rotatably installed on the connecting frame 334, and the concave block 335 is adapted to the positioning block 323. The turntable 331 is fixed by the snap-fit ​​between the concave block 335 and the positioning block 323. Several window slots 333 are provided on the turntable 331 to reduce the weight of the turntable 331 and thus reduce energy consumption.

[0022] In addition, the tray 321 is rotatably mounted on the top of the steel bar processing bending machine 1, and the tray 321, turntable 331 and drive disk 341 are all located on the central axis of the bending mandrel 35, ensuring that the servo motor 31 drives the support 32 to rotate, and drives the drive disk 341 through the connecting column 322 to realize the control of the rotation of the bending mandrel 35.

[0023] It should be noted that there are no fewer than nine positioning blocks 323, which are distributed in a fan-shaped arc on the outer periphery of the tray 321. The included angle between two adjacent positioning blocks 323 is ten degrees, and the included angle between adjacent positioning blocks 323 is ten degrees, which facilitates locking the angle of the rotating turntable 331 and is suitable for hot-rolled ribbed steel bars with a diameter of 6-22 mm.

[0024] Using the above technical solution, the servo motor 31 serves as the power source, and its output shaft drives the support member 32 to rotate. The tray 321 in the support member 32 is fixedly connected to the servo motor 31, and then drives the drive disk 341 to rotate through the connecting column 322, causing the bending mandrel 35 to rotate and the forming shaft 363 to revolve around the bending mandrel 35. After adjusting the distance between the forming shaft 363 and the bending mandrel 35, the concave block 335 flips in the opposite direction to the positioning block 323 under the action of gravity until the concave block 335 is stuck on the positioning block 323, locking the position of the turntable 331 and ensuring the stability of the forming member 36 during the bending process.

[0025] The working principle of the above embodiments is as follows: In use, the steel bar processing equipment for engineering construction uses a servo motor 31 as a power source. Its output shaft drives the support 32 to rotate. The tray 321 in the support 32 is fixedly connected to the servo motor 31, and then drives the drive disk 341 to rotate through the connecting column 322, so that the bending mandrel 35 rotates on its own axis, while the forming shaft 363 revolves around the bending mandrel 35. The reinforcing bar is placed between the forming shaft 363 and the bending mandrel 35. Under the action of the forming shaft 363 revolving around the bending mandrel 35, the reinforcing bar is squeezed and bent. The guide block 361 and the guide groove 342 ensure the straightness of the movement of the forming part 36 and ensure the accuracy of the bending angle. The turntable 331 of the adjusting component 33 can rotate around the connecting column 322. The arc groove 332 on the turntable 331 is slidably connected to the connecting rod 362 of the forming component 36. When the turntable 331 is rotated, the trajectory of the arc groove 332 will push the connecting rod 362 to slide in the guide groove 342, thereby driving the forming shaft 363 to move closer to or away from the bending mandrel 35, so as to achieve precise adjustment of the distance between the forming shaft 363 and the bending mandrel 35. The positioning blocks 323 on the outer periphery of the tray 321 are distributed in a fan arc shape. The concave blocks 335 on the turntable 331 are adapted to the positioning blocks 323. After adjusting the distance between the forming shaft 363 and the bending mandrel 35, the concave blocks 335 flip in the opposite direction to the positioning blocks 323 under the action of gravity until the concave blocks 335 are stuck on the positioning blocks 323, locking the position of the turntable 331 and ensuring the stability of the formed part 36 during the bending process.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel bar processing equipment for engineering construction, comprising a steel bar bending machine (1) and a support bar (2), characterized in that: The steel bar processing bending machine (1) is equipped with a bending structure (3); The bending structure (3) includes a servo motor (31) fixedly installed inside the steel bar processing bending machine (1). A support (32) is provided on the output shaft of the servo motor (31). An adjusting component (33) is rotatably installed on the support (32). A working component (34) is fixedly installed on the support (32). A bending mandrel (35) and a forming component (36) for bending steel bars are installed on the working component (34). The adjusting component (33) is used to control the distance between the bending mandrel (35) and the forming component (36). The molded part (36) includes a guide block (361), a connecting rod (362) is fixedly installed on the guide block (361), and a forming shaft (363) for bending the reinforcing bar is fixedly installed on the connecting rod (362). The working part (34) includes a drive disk (341), and a bending mandrel (35) is fixedly installed on the top of the drive disk (341). The drive disk (341) has a guide groove (342) adapted to the guide block (361). The adjusting component (33) includes a turntable (331) rotatably mounted on the support (32). The turntable (331) has an arc-shaped groove (332) that is slidably connected to the connecting rod (362). One end of the connecting rod (362) passes through the guide groove (342) and extends into the interior of the arc-shaped groove (332).

2. The steel bar processing equipment for engineering construction according to claim 1, characterized in that: The support member (32) includes a tray (321) fixedly connected to the output shaft of the servo motor (31). A connecting column (322) is fixedly installed on the tray (321), and a turntable (331) is rotatably installed on the connecting column (322). The top of the connecting column (322) is fixedly connected to the drive disk (341). Several positioning blocks (323) are fixedly installed on the outer peripheral wall of the tray (321).

3. The steel bar processing equipment for engineering construction according to claim 2, characterized in that: A connecting frame (334) is fixedly installed on the outer peripheral wall of the turntable (331). A concave block (335) is rotatably installed on the connecting frame (334), and the concave block (335) is adapted to the positioning block (323). A number of window slots (333) are opened on the turntable (331).

4. A steel bar processing equipment for engineering construction according to claim 2, characterized in that: The tray (321) is rotatably mounted on the top of the steel bar processing bending machine (1), and the tray (321), turntable (331) and drive disc (341) are all located on the central axis of the bending mandrel (35).

5. A steel bar processing equipment for engineering construction according to claim 2, characterized in that: The number of positioning blocks (323) is not less than nine, and they are distributed in a fan-shaped arc on the outer peripheral wall of the tray (321). The included angle between two adjacent positioning blocks (323) is ten degrees.

Citation Information

Patent Citations

  • Steel bar bender

    CN106955948A