Steel bar bending mechanism

By introducing adjustment and positioning components into the rebar bending mechanism, the problem of difficulty in controlling the bending angle in the prior art is solved, achieving precise rebar bending and convenient operation, and enhancing the stability and maintainability of the mechanism.

CN223506115UActive Publication Date: 2025-11-04ZHONGSHEN JIANYE CONSTR GRP CO LTD
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Patent Information

Application Number
CN202522058968.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-25
Publication Date
2025-11-04
Estimated Expiration
2035-09-25

AI Technical Summary

Technical Problem

Existing rebar bending mechanisms have difficulty precisely controlling the bending angle during the bending process, resulting in large bending errors.

Method used

By employing adjustment and positioning components, and through the cooperation of graduated grooves, angle positioning plates, and threaded sleeves, the bending angle of the reinforcing bars can be precisely adjusted and fixed. Combined with the design of bearings and positioning sleeves, the stability and convenience of the mechanism are improved.

Benefits of technology

It reduces bending angle errors, improves the accuracy of rebar bending and ease of operation, and enhances the stability and maintainability of the mechanism.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of reinforcing steel bar machining, in particular to a reinforcing steel bar bending mechanism which comprises a fixing base and an adjusting assembly arranged above the fixing base, the adjusting assembly comprises a second square pipe fixedly installed on the upper surface of the fixing base, and a first square pipe is movably arranged on one side of the second square pipe. A first square pipe is movably arranged on one side of the first square pipe, a third square pipe is movably arranged on the other side of the second square pipe, the two bending assemblies are arranged at the upper ends of the first square pipe and the third square pipe, the positioning assembly is arranged at the upper end of the second square pipe and comprises a second vertical rod, a stud is fixedly installed at the upper end of the second vertical rod, and a plurality of angle positioning plates are movably arranged on the outer side of the stud in a sleeving mode. According to the steel bar bending mechanism, the multiple angle positioning plates are arranged at the upper end of the second vertical rod, the orientation of the angle positioning plates is adjusted, and the bending angle of a steel bar is observed according to the orientation of the angle positioning plates, so that the angle of the steel bar can be visually judged by operators conveniently, the bending angle error is reduced, and the bending mechanism is convenient to control.
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Description

Technical Field

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

[0002] In practical applications, steel bars need to be bent to a certain angle according to requirements. To save time and effort, steel bar bending mechanisms are often used for bending.

[0003] Existing rebar bending mechanisms are typically designed to bend rebars of various diameters. In practice, the rebar is usually placed between two fixed vertical rods, and bending is achieved by rotating the bending rod around one of the vertical rods. However, the bending process relies on the operator's visual judgment of the bending angle, which has a large error and is difficult to control, making it easy for the bent rebar to become unusable. Utility Model Content

[0004] The purpose of this invention is to provide a steel bar bending mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A steel bar bending mechanism, comprising:

[0007] Fixed base;

[0008] An adjustment component is disposed above a fixed base. The adjustment component includes a No. 2 square tube fixedly installed on the upper surface of the fixed base. A No. 1 square tube is movably disposed on one side of the No. 2 square tube, and a No. 3 square tube is movably disposed on the other side of the No. 2 square tube.

[0009] Two bending components are disposed at the upper ends of square tube No. 1 and square tube No. 3, and the bending components include a vertical rod No. 1;

[0010] A positioning component is disposed on the upper end of the second square tube. The positioning component includes a second vertical rod, on the upper end of which a stud is fixedly installed. Multiple angle positioning plates are movably sleeved on the outside of the stud.

[0011] Furthermore, a fixing groove is provided on the lower surface of the fixing base, and a scale groove is provided at one end of the upper surface of the fixing base.

[0012] Furthermore, a handle is fixedly installed at one end of the No. 3 square tube, a connecting plate is fixedly installed on the upper surface of the No. 3 square tube, and the No. 2 vertical rod passes through the connecting plate and is movably fitted with the connecting plate.

[0013] Furthermore, the upper surface of the fixed base is symmetrically fixed with support rings, and the two support rings are rotatably connected with screws inside. The screws are screwed with nuts on the outside, and the two nuts are respectively fixed through the two sides of the No. 1 square tube.

[0014] Furthermore, bearings are fixedly embedded on the upper surfaces of both the No. 1 square tube and the No. 3 square tube, and a No. 1 square groove collar is fixedly installed on the inner ring of the bearing. The No. 1 vertical rod slides through the No. 1 square groove collar at the corresponding position.

[0015] Furthermore, positioning sleeves are fixedly installed on the lower inner surfaces of the No. 1 square tube, No. 2 square tube, and No. 3 square tube, and the lower ends of the No. 1 vertical rod and the No. 2 vertical rod are respectively movably inserted into the positioning sleeves at the corresponding positions.

[0016] Furthermore, a second square groove collar is fixedly embedded on the upper surface of the second square tube, the second vertical rod is movably inserted into the second square groove collar, and a threaded sleeve is screwed onto the upper end of the stud.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. By sliding and fitting the contact surfaces of square tube No. 3 and square tube No. 2, the overall stability of the bending mechanism when the No. 2 vertical rod rotates is increased. By movably inserting the No. 1 vertical rod and the No. 1 square groove collar, the No. 1 vertical rod is easy to disassemble. By movably inserting the No. 2 vertical rod and the No. 2 square groove collar, the No. 2 vertical rod is easy to disassemble and replace if damaged.

[0019] 2. Before bending the reinforcing bar, rotate the angle positioning plate to adjust it to a specific angle so that it is aligned with the direction of the bent reinforcing bar. Then, tighten the threaded sleeve to fix the angle positioning plate. This allows you to observe the bending angle of the reinforcing bar by observing the direction of the angle positioning plate, making it easier for the operator to visually judge the angle of the reinforcing bar, reducing bending angle errors, and making the bending mechanism easier to control.

[0020] 3. Rotate the screw to move the first square tube, adjust the position of the first vertical rod above it, and make the distance between the first and second vertical rods adapt to the diameter of the steel bar, fix the placement direction of the steel bar, and improve the accuracy of the angle judgment when the steel bar is bent. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of square tube No. 2 and square tube No. 3 in this utility model;

[0024] Figure 4 This is a schematic cross-sectional view of the connection between the No. 1 square tube and the screw in this utility model;

[0025] Figure 5 This is a schematic diagram of the cross-sectional structure of the No. 2 vertical rod and the screw in this utility model.

[0026] In the diagram: 1. Fixed base; 101. Fixed groove; 102. Scale groove; 2. Adjustment assembly; 201. Square tube No. 1; 202. Support ring; 203. Screw; 204. Nut; 205. Square tube No. 2; 206. Square tube No. 3; 207. Handle; 208. Connecting plate; 3. Bending assembly; 301. Bearing; 302. Square groove No. 1 collar; 303. Vertical rod No. 1; 304. Positioning sleeve; 4. Positioning assembly; 401. Vertical rod No. 2; 402. Square groove No. 2 collar; 403. Stud; 404. Threaded sleeve; 405. Angle positioning plate. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-5 In this embodiment of the utility model, a steel bar bending mechanism includes a fixed base 1. A fixed groove 101 is provided on the lower surface of the fixed base 1. The fixed base 1 can be fixed to a table or other position by means of fasteners through the fixed groove 101. The fixed base 1 can also be fixed by stepping on it. An adjustment component 2 is set above the fixed base 1. The adjustment component 2 includes a second square tube 205 fixedly installed on the upper surface of the fixed base 1. A first square tube 201 is movably provided on one side of the second square tube 205, and a third square tube 206 is movably provided on the other side of the second square tube 205. Two bending components 3 are set on the upper ends of the first square tube 201 and the third square tube 206. The bending component 3 includes a first vertical rod 303. A positioning component 4 is set on the upper end of the second square tube 205. The positioning component 4 includes a second vertical rod 401. A stud 403 is fixedly installed on the upper end of the second vertical rod 401. Multiple angle positioning plates 405 are movably sleeved on the outside of the stud 403.

[0029] Specifically, the reinforcing bar is placed between a first vertical bar 303 and a second vertical bar 401. The other first vertical bar 303 rotates around the second vertical bar 401 to bend the reinforcing bar. The bending angle of the reinforcing bar is determined by the orientation of the angle positioning plate 405.

[0030] Example 1

[0031] like Figure 2 and Figure 3 As shown, in this embodiment, a handle 207 is fixedly installed at one end of the No. 3 square tube 206. The handle 207 makes it easier to operate and rotate the No. 3 square tube 206. At the same time, a round tube can be sleeved on the outside of the handle 207 to increase the lever arm and make the No. 3 square tube 206 easier to rotate. A connecting plate 208 is fixedly installed on the upper surface of the No. 3 square tube 206. The No. 2 vertical rod 401 passes through the connecting plate 208 and is movably fitted with the connecting plate 208.

[0032] In this embodiment, the connecting plate 208 rotates around the second vertical rod 401, while the third square tube 206 rotates around the second square tube 205. The contact surface between the third square tube 206 and the second square tube 205 is an arc-shaped surface and they slide together, which increases the overall stability of the bending mechanism when the second vertical rod 401 rotates.

[0033] like Figures 2-4 As shown, in this embodiment, bearings 301 are fixedly embedded on the upper surfaces of square tube 201 and square tube 206. A square groove collar 302 is fixedly installed on the inner ring of the bearing 301. The vertical rod 303 slides through the square groove collar 302 at the corresponding position. Positioning sleeves 304 are fixedly installed on the lower inner surfaces of square tube 201, square tube 205 and square tube 206. The lower ends of the vertical rod 303 and the vertical rod 401 are movably inserted into the positioning sleeves 304 at the corresponding positions. The positioning sleeves 304 limit the lower ends of the vertical rod 303 and the vertical rod 401, increasing their bending resistance and improving the protection of the bearing 301.

[0034] In practice, the bearing 301 facilitates the rotation of the first vertical rod 303, and the movable connection between the first vertical rod 303 and the first square groove collar 302 facilitates the disassembly of the first vertical rod 303 and its replacement after damage.

[0035] like Figure 3 and Figure 5 As shown, in this embodiment, a second square groove collar 402 is fixedly embedded on the upper surface of the second square tube 205. The second vertical rod 401 is movably inserted into the second square groove collar 402. The movable insertion of the second vertical rod 401 and the second square groove collar 402 makes the second vertical rod 401 easy to disassemble and easy to replace after it is damaged. A threaded sleeve 404 is screwed onto the upper end of the stud 403.

[0036] In practice, before bending the reinforcing bar, rotate the angle positioning plate 405 to adjust it to a specific angle so that it is aligned with the direction of the bent reinforcing bar. Then, tighten the threaded sleeve 404 to fix the angle positioning plate 405. By setting multiple angle positioning plates 405 on the upper end of the second vertical rod 401 and adjusting the orientation of the angle positioning plates 405, the bending angle of the reinforcing bar can be observed through the orientation of the angle positioning plates 405. This makes it easier for the operator to visually judge the angle of the reinforcing bar, reduces bending angle errors, and makes the bending mechanism easier to control.

[0037] Example 2

[0038] Based on Example 1, in order to solve the problem that the initial angle of the steel bar is not easy to fix when it is bent.

[0039] like Figure 4 As shown, in this embodiment, a scale groove 102 is provided at one end of the upper surface of the fixed base 1. The position adjustment of the first square tube 201 is more accurate and intuitive through the scale groove 102. Support rings 202 are symmetrically fixedly installed on the upper surface of the fixed base 1. Screws 203 are rotatably connected inside the two support rings 202. Nuts 204 are screwed on the outside of the screws 203. The two nuts 204 are respectively fixed through the two sides of the first square tube 201.

[0040] In practice, rotating the screw 203, through the screw connection between the screw 203 and the nut 204, under the sliding contact limit of the first square tube 201 and the fixed seat 1, and under the sliding contact limit of the second square tube 205, the nut 204 drives the first square tube 201 to move, adjusting the position of the first vertical rod 303 above it, so that the distance between the first vertical rod 303 and the second vertical rod 401 is adapted to the diameter of the steel bar, limiting the angle when the steel bar is placed, and improving the accuracy of the angle judgment when the steel bar is bent.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A steel bar bending mechanism, characterized in that, include: Fixed base (1); Adjustment component (2) is set above the fixed base (1). The adjustment component (2) includes a second square tube (205) fixedly installed on the upper surface of the fixed base (1). A first square tube (201) is movably provided on one side of the second square tube (205), and a third square tube (206) is movably provided on the other side of the second square tube (205). Two bending components (3) are disposed on the upper ends of square tube No. 1 (201) and square tube No. 3 (206), and the bending components (3) include a vertical rod No. 1 (303). The positioning component (4) is set on the upper end of the second square tube (205). The positioning component (4) includes a second vertical rod (401). A stud (403) is fixedly installed on the upper end of the second vertical rod (401). Multiple angle positioning plates (405) are movably sleeved on the outside of the stud (403).

2. The steel bar bending mechanism according to claim 1, characterized in that, The lower surface of the fixed base (1) is provided with a fixed groove (101), and one end of the upper surface of the fixed base (1) is provided with a scale groove (102).

3. The steel bar bending mechanism according to claim 1, characterized in that, A handle (207) is fixedly installed at one end of the No. 3 square tube (206), and a connecting plate (208) is fixedly installed on the upper surface of the No. 3 square tube (206). The No. 2 vertical rod (401) passes through the connecting plate (208) and is movably fitted with the connecting plate (208).

4. The steel bar bending mechanism according to claim 1, characterized in that, Support rings (202) are symmetrically fixed on the upper surface of the fixed base (1). Screws (203) are rotatably connected inside the two support rings (202). Nuts (204) are screwed on the outside of the screws (203). The two nuts (204) are respectively fixed through the two sides of the first square tube (201).

5. The steel bar bending mechanism according to claim 1, characterized in that, Bearings (301) are fixedly embedded on the upper surfaces of the No. 1 square tube (201) and the No. 3 square tube (206). A No. 1 square groove collar (302) is fixedly installed on the inner ring of the bearing (301). The No. 1 vertical rod (303) slides through the No. 1 square groove collar (302) at the corresponding position.

6. The steel bar bending mechanism according to claim 1, characterized in that, The lower inner surfaces of the first square tube (201), the second square tube (205), and the third square tube (206) are all fixedly fitted with positioning sleeves (304), and the lower ends of the first vertical rod (303) and the second vertical rod (401) are respectively movably inserted into the positioning sleeves (304) at the corresponding positions.

7. The steel bar bending mechanism according to claim 1, characterized in that, The second square tube (205) has a second square groove collar (402) fixedly embedded on its upper surface. The second vertical rod (401) is movably inserted into the second square groove collar (402). The upper end of the stud (403) is screwed with a threaded sleeve (404).