Bending device for steel structure machining

By introducing a protective cover and a pin mechanism into the steel bar bending equipment, the safety hazard of parts popping out of the equipment has been solved, and the safety and convenience have been improved.

CN224157664UActive Publication Date: 2026-04-24CHANGCHUN CHENGTOU URBANIZATION CONSTR INVESTMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGCHUN CHENGTOU URBANIZATION CONSTR INVESTMENT CO LTD
Filing Date
2025-02-25
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing steel bar bending equipment lacks protective devices, which causes parts to pop out under the pressure, posing a safety hazard.

Method used

A protective mechanism including a protective cover and a pin was designed. The transmission rod is driven by a hydraulic cylinder to insert the pin into the limit hole in advance. The protective cover is self-locking and linked to ensure that the parts do not fly out when damaged, thus improving safety.

Benefits of technology

It effectively prevents parts from flying off, improves the safety of equipment use, reduces the risk of misoperation, and enhances the safety and convenience of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a bending device for steel structure processing, which comprises a working table, the upper end of the working table is provided with a bending mechanism for bending a reinforcing steel bar, the bending mechanism comprises a fixed table, a limiting wheel, a first mounting block, a first movable rod, an extrusion head, a hydraulic cylinder and a first transmission rod, and the fixed table is fixedly arranged on one side of the upper end of the working table. Limiting wheels are movably arranged on the two sides of the upper end of the fixing table through rotating shafts, a first mounting block is fixedly arranged on one side of the fixing table, and a first movable rod is movably arranged at the upper end of the interior of the first mounting block in a penetrating mode. The device is good in using effect, the protection mechanism is arranged on the outer side of traditional bending equipment, so that the device can still achieve basic safety even if parts splash when the device is used, meanwhile, the protection mechanism can automatically conduct self-locking when the device conducts bending work, and the situation that the device is opened through misoperation is prevented from occurring.
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Description

Technical Field

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

[0002] In existing technologies for steel structure construction, steel bending equipment is commonly used, including plate bending machines and rebar bending machines. This application focuses on improving rebar bending machines, which are mechanical devices used in construction engineering to bend rebar into desired shapes. They are widely used in the processing of rebar for bridges, tunnels, buildings, and other building structures.

[0003] Existing steel bar bending equipment lacks protective devices. Since the various components of the equipment are subjected to large compressive forces during steel bar bending, if the components are damaged after long-term use, the damaged parts may pop out under the pressure, which is very dangerous. Therefore, an improved bending device for steel structure processing is needed to address this problem. Utility Model Content

[0004] The purpose of this utility model is to provide a bending device for steel structure processing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bending device for steel structure processing, comprising a worktable, wherein a bending mechanism for bending reinforcing bars is provided at the upper end of the worktable, the bending mechanism comprising a fixed platform, a limiting wheel, a first mounting block, a first movable rod, a pressing head, a hydraulic cylinder, and a first transmission rod, wherein a fixed platform is fixedly provided on one side of the upper end of the worktable, and limiting wheels are movably provided on both sides of the upper end of the fixed platform via rotating shafts, wherein a first mounting block is fixedly provided on one side of the fixed platform, and a first movable rod is movably inserted into the upper end of the first mounting block, and a pressing head is fixedly provided at the end of the first movable rod near the limiting wheel, wherein a hydraulic cylinder is fixedly provided on one side of the first mounting block at the upper end of the worktable, and a first transmission rod is movably provided at the movable end of the hydraulic cylinder via a rotating shaft, and a protective mechanism is provided on the outer side of the bending mechanism at the upper end of the worktable.

[0006] Preferably, the protective mechanism includes a fixing block, a protective cover, and a limiting hole. The fixing block is fixedly installed on one side of the upper end of the worktable, and the protective cover is movably installed on the middle of the fixing block via a rotating shaft. A limiting hole is opened on one side of the surface of the protective cover. The protective mechanism can cover and isolate the bending area of ​​the device, so that even if parts are splashed, the device can still ensure safety.

[0007] Preferably, the protection mechanism further includes a second mounting block, a second movable rod, a pin, and a second transmission rod. The second mounting block is fixedly installed on one side of the first mounting block at the upper end of the worktable. The second movable rod is movably inserted into the upper end of the second mounting block. One end of the second movable rod is fixedly installed with a pin. The movable end of the hydraulic cylinder is movably installed with the second transmission rod on one side of the first transmission rod via a rotating shaft.

[0008] Preferably, the upper part of the outer surface of the protective cover is provided with a perforated wire mesh. The perforated wire mesh can ensure that the staff can clearly see the bending situation inside the protective cover while ensuring basic safety.

[0009] Preferably, the end of the first transmission rod near the first movable rod is rotatably connected to the first movable rod via a rotating shaft. By extending and shortening the hydraulic cylinder, the first transmission rod connected by the rotating shafts at both ends can drive the first movable rod to move back and forth, thus allowing the extrusion head to bend the steel bar.

[0010] Preferably, the end of the second transmission rod near the second movable rod is rotatably connected to the second movable rod via a rotating shaft. When the hydraulic cylinder extends or retracts, the second transmission rod can drive the second movable rod to move back and forth, allowing the pin to be inserted into the limiting hole. It should be noted that the pin is inserted into the limiting hole faster than the extrusion head extrudes the steel bar, because the pin is closer to the limiting hole. In other words, the pin is already inserted into the limiting hole before the steel bar is subjected to force and the entire device is subjected to significant internal force. This effectively improves the safety of the device during use.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. When this utility model is performing bending operations, the second transmission rod can cause the pin to move towards the limiting hole and insert into the limiting hole. At this time, because the pin is closer to the limiting hole, the pin will be inserted into the limiting hole first. Before the entire device is subjected to a large internal force, the pin has already been inserted into the limiting hole. After the pin is inserted into the limiting hole, the entire protective cover is firmly fixed. Even if the device parts are damaged and fly away, they will not harm the workers. This can effectively improve the safety of the device during use.

[0013] 2. The protective cover of this utility model is fully self-locking and linked. The latch automatically locks the cover. The operator only needs to close the protective cover. This makes it convenient to use and reduces the possibility of misoperation, thereby further improving the safety of the device. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the overall structure of a bending device for steel structure processing according to the present invention;

[0015] Figure 2 This is an open view of the protective cover in a bending device for steel structure processing according to the present invention;

[0016] Figure 3 This is an internal structural view of the protective cover in a bending device for steel structure processing according to this utility model;

[0017] Figure 4 This is a view of the connection structure of the second transmission rod in a bending device for steel structure processing according to this utility model.

[0018] In the diagram: 1. Workbench; 2. Fixed platform; 3. Limiting wheel; 4. First mounting block; 5. First movable rod; 6. Extrusion head; 7. Hydraulic cylinder; 8. First transmission rod; 9. Fixed block; 10. Protective cover; 11. Limiting hole; 12. Second mounting block; 13. Second movable rod; 14. Pin; 15. Second transmission rod; 16. Hollowed-out wire mesh. 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 Figure 1-4 This utility model provides a technical solution: a bending device for steel structure processing, including a workbench 1. The upper end of the workbench 1 is provided with a bending mechanism for bending steel bars. The bending mechanism includes a fixed platform 2, a limiting wheel 3, a first mounting block 4, a first movable rod 5, a pressing head 6, a hydraulic cylinder 7, and a first transmission rod 8. The fixed platform 2 is fixedly installed on one side of the upper end of the workbench 1. The limiting wheel 3 is movably installed on both sides of the upper end of the fixed platform 2 through a rotating shaft. The first mounting block 4 is fixedly installed on one side of the fixed platform 2. The first movable rod 5 is movably inserted into the upper end of the first mounting block 4. The pressing head 6 is fixedly installed at the end of the first movable rod 5 near the limiting wheel 3. The hydraulic cylinder 7 is fixedly installed on one side of the first mounting block 4 at the upper end of the workbench 1. The movable end of the hydraulic cylinder 7 is movably installed with the first transmission rod 8 through a rotating shaft. A protective mechanism is provided on the outside of the bending mechanism at the upper end of the workbench 1.

[0021] The protective mechanism includes a fixing block 9, a protective cover 10, and a limiting hole 11. The fixing block 9 is fixedly installed on one side of the upper end of the workbench 1. The protective cover 10 is movably installed on the middle of the fixing block 9 via a rotating shaft. A limiting hole 11 is opened on one side of the surface of the protective cover 10. The protective mechanism can cover and isolate the bending area of ​​the device, so that even if parts are splashed, the device can still ensure safety.

[0022] The protection mechanism further includes a second mounting block 12, a second movable rod 13, a pin 14, and a second transmission rod 15. The second mounting block 12 is fixedly mounted on one side of the first mounting block 4 at the upper end of the worktable 1. The second movable rod 13 is movably inserted into the upper part of the second mounting block 12. One end of the second movable rod 13 is fixedly mounted with a pin 14. The movable end of the hydraulic cylinder 7 is movably connected to the second transmission rod 15 via a rotating shaft on one side of the first transmission rod 8.

[0023] The upper part of the outer surface of the protective cover 10 is provided with a perforated wire mesh 16. The perforated wire mesh 16 can ensure that the staff can clearly see the bending situation inside the protective cover 10, while also ensuring basic safety.

[0024] The first transmission rod 8 is rotatably connected to the first movable rod 5 at one end via a rotating shaft. By extending and shortening the hydraulic cylinder 7, the first transmission rod 8, connected by the rotating shafts at both ends, can drive the first movable rod 5 to move back and forth. In this way, the steel bar can be bent by the extrusion head 6.

[0025] The end of the second transmission rod 15 near the second movable rod 13 is rotatably connected to the second movable rod 13 via a rotating shaft. When the hydraulic cylinder 7 extends or retracts, the second transmission rod 15 can drive the second movable rod 13 to move back and forth, so that the pin 14 can be inserted into the limiting hole 11. It should be noted that the pin 14 is inserted into the limiting hole 11 faster than the extrusion head 6 extrudes the steel bar, because the pin 14 is closer to the limiting hole 11. That is to say, the pin 14 is already inserted into the limiting hole 11 before the steel bar is subjected to force and the entire device is subjected to a large internal force. This can effectively improve the safety of the device during use.

[0026] Working principle: When bending steel bars is required using this device, first place the steel bar on the upper end of the fixed platform 2, in the area between the extrusion head 6 and the limiting wheel 3. Then rotate and close the protective cover 10, and then control the hydraulic cylinder 7 to extend. At this time, the extrusion head 6 can be pushed towards the limiting wheel 3 through the first transmission rod 8. Then, the extrusion head 6 can cooperate with the limiting wheel 3 to extrude the steel bar, thereby performing the bending work.

[0027] Meanwhile, under the action of the second transmission rod 15, the pin can move towards the limiting hole 11 and be inserted into the limiting hole 11. Since the pin 14 is closer to the limiting hole 11, the pin 14 will be inserted into the limiting hole 11 first. At this time, before the whole device is subjected to a large internal force, the pin 14 has already been inserted into the limiting hole 11. After the pin 14 is inserted into the limiting hole 11, the entire protective cover 10 is firmly fixed. Even if the device parts are damaged and splashed, they will not harm the staff. This can effectively improve the safety of the device during use.

[0028] Meanwhile, the protective cover 10 of this device is fully self-locking and the latch 14 automatically locks it. The staff only needs to close the protective cover 10, which is convenient to use and can reduce the possibility of misoperation (staff forgetting to lock the protective cover 10), thereby further improving the safety of the device.

[0029] 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 process, method, article, or apparatus.

[0030] 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 bending device for steel structure processing, comprising a workbench (1), characterized in that: The upper end of the workbench (1) is provided with a bending mechanism for bending steel bars. The bending mechanism includes a fixed platform (2), a limiting wheel (3), a first mounting block (4), a first movable rod (5), an extrusion head (6), a hydraulic cylinder (7), and a first transmission rod (8). A fixed platform (2) is fixedly provided on one side of the upper end of the workbench (1). Limiting wheels (3) are movably provided on both sides of the upper end of the fixed platform (2) through a rotating shaft. A first mounting block (4) is fixedly provided on one side of the fixed platform (2). A first movable rod (5) is movably inserted into the upper end of the first mounting block (4). An extrusion head (6) is fixedly provided at the end of the first movable rod (5) near the limiting wheel (3). A hydraulic cylinder (7) is fixedly provided on one side of the first mounting block (4) at the upper end of the workbench (1). A first transmission rod (8) is movably provided at the movable end of the hydraulic cylinder (7) through a rotating shaft. A protective mechanism is provided on the outside of the bending mechanism at the upper end of the workbench (1).

2. The bending device for steel structure processing according to claim 1, characterized in that: The protective mechanism includes a fixed block (9), a protective cover (10), and a limiting hole (11). A fixed block (9) is fixedly installed on one side of the upper end of the workbench (1). A protective cover (10) is movably installed on the middle of the fixed block (9) via a rotating shaft. A limiting hole (11) is opened on one side of the surface of the protective cover (10).

3. The bending device for steel structure processing according to claim 2, characterized in that: The protection mechanism also includes a second mounting block (12), a second movable rod (13), a pin (14), and a second transmission rod (15). The upper end of the workbench (1) is fixedly provided with a second mounting block (12) on one side of the first mounting block (4). The upper end of the second mounting block (12) is movably inserted with a second movable rod (13). One end of the second movable rod (13) is fixedly provided with a pin (14). The movable end of the hydraulic cylinder (7) is movably provided with a second transmission rod (15) on one side of the first transmission rod (8) via a rotating shaft.

4. A bending device for steel structure processing according to claim 2, characterized in that: The upper part of the outer surface of the protective cover (10) is provided with a perforated wire mesh (16).

5. A bending device for steel structure processing according to claim 1, characterized in that: The end of the first transmission rod (8) near the first movable rod (5) is rotatably connected to the first movable rod (5) via a rotating shaft.

6. A bending device for steel structure processing according to claim 3, characterized in that: The end of the second transmission rod (15) near the second movable rod (13) is rotatably connected to the second movable rod (13) via a rotating shaft.