Reinforcing bar bending machine

Abstract

The utility model discloses a reinforcing bar bending machine relates to reinforcing bar bending field. The reinforcing bar bending machine bending station, the drive unit of bending reinforcing bar, drive unit sets up in the inside of bending station, and drive unit transmission has the bending unit, and the rotation center axle department of bending unit is provided with the positioning post fixed mounting on bending station, and positioning post is used for positioning reinforcing bar. The reinforcing bar bending machine is through rotating the upper half positioning post and drives second screw rod to rotate from the second screw hole on the half positioning post, and the locking of bending groove space is released, and the opening and closing size of bending groove is convenient to adjust, and the synchronous movement of bending column is driven through the rotation screw rod drive screw block, and the adjustment of the distance between bending column and positioning post is realized, to adapt to the clamping demand of different diameter reinforcing bar and start electric telescopic push slider adjustment lateral distance between both sides positioning post, and the adaptation range of equipment to different specifications reinforcing bar is further expanded.

Description

Technical Field

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

[0002] Steel bars are important reinforcing materials used in reinforced concrete and prestressed concrete structures. Their cross-section is typically circular, but some are square with rounded corners. They mainly include plain round bars, ribbed bars, and twisted bars. In actual construction, the forming of steel bars is mostly accomplished using steel bar bending machines.

[0003] However, existing rebar bending machines generally suffer from fixed bending spacing, making it impossible to flexibly adjust according to changes in rebar diameter. When processing rebars of different specifications, if the rebar diameter is too large, it is difficult to fit into the bending mechanism; if the diameter is too small, the clamping space is too large, causing the rebar to slip or become inaccurately positioned during bending, resulting in ineffective bending and affecting processing accuracy.

[0004] In view of the shortcomings of the existing technology, this utility model provides a steel bar bending machine to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a rebar bending machine that solves the problem of flexibly adjusting the clamping space size according to changes in the rebar diameter.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a steel bar bending machine, comprising a bending table and a driving unit for bending steel bars, wherein the driving unit is disposed inside the bending table and the driving unit is connected to the bending unit in a transmission manner; The bending unit is provided with a positioning column fixedly installed on the bending table at the rotation center axis. The positioning column is used to position the reinforcing bar. Two positioning columns are rotatably connected to the steel bar input platform of the bending table. The two positioning columns are used for positioning and conveying the steel bars. A slider is rotatably connected to the bottom of one of the positioning columns, and the slider is slidably connected to the surface of the bending table. A telescopic unit for driving the slider to slide is installed on one side of the slider. Each of the positioning posts has a bending groove in the center for placing the reinforcing bar. Another positioning post is set above the positioning post. A locking unit is set between the two adjacent positioning posts. The locking unit is used to fix the two adjacent positioning posts together.

[0007] Preferably, the bending unit includes: a rotating plate, which is connected to the driving unit in a transmission manner; the rotating plate is slidably connected to the bending table; and the top of the bending table is provided with a rotating groove that matches the size of the rotating plate. An adjusting seat is fixedly connected to one end of the rotating plate that extends outside the bending table; A threaded slider is provided in a sliding connection inside the adjusting seat; A screw is rotatably connected inside the adjusting seat, and the screw is helically connected to a threaded slider. A bending column is positioned at the top of the threaded slider; The bending column includes: a connecting column, a first threaded hole, and a first threaded rod. The bottom of the connecting column is fixedly connected to the first threaded rod, and the top of the connecting column has a first threaded hole that matches the size of the first threaded rod.

[0008] Preferably, the driving unit includes: The motor is located inside the bending table; The main gear is connected to the output shaft of the bending table. The driven gear meshes with the main gear; A rotating rod is fixedly connected to the center of the driven gear. One end of the rotating rod is rotatably connected to the inner wall of the bending table, and the other end of the rotating rod is fixedly connected to the rotating plate. Preferably, the telescopic unit includes: a slide rail disposed on the top of the bending table, and the interior of the slide rail is slidably connected to the slider; The electric telescopic rod is connected to the slider via a transmission mechanism, allowing the telescopic end of the electric telescopic rod to drive the slider to slide within the slide rail. Preferably, the locking unit includes: a third threaded hole disposed on the top of the positioning post; The third threaded rod is located at the bottom of the positioning post, and the third threaded rod is threadedly connected to the third threaded hole, so that the two adjacent positioning posts are fixedly connected together.

[0009] Preferably, the positioning post includes: The lower positioning post is fixedly connected to the third threaded rod; The second threaded hole is located at the top of the lower half positioning post; The upper positioning post is positioned directly above the lower positioning post; The second threaded rod is located at the bottom of the upper positioning post, and the second threaded rod is threadedly connected to the second threaded hole, so that the lower positioning post is fixedly connected to the upper positioning post.

[0010] Preferably, the bottom of the threaded slider is movably connected with a plurality of ball bearings.

[0011] Preferably, the bottom of the bending table is fixedly connected to a storage box for storing the positioning column.

[0012] The technical effects and advantages of this utility model are as follows: This rebar bending machine rotates the upper positioning column, causing the second threaded rod to rotate and unscrew into the second threaded hole on the lower positioning column. This releases the locking of the bending groove space, facilitating adjustment of the bending groove's opening and closing dimensions. Rotating the screw drives the threaded slider, which is threaded to its own, to move linearly along the slide groove in the adjusting seat. This, in turn, moves the bending column synchronously, allowing adjustment of the distance between the bending column and the positioning column to accommodate rebars of different diameters and ensure accurate bending radii. The controller activates the electric telescopic rod, pushing the slider horizontally along the track on the slide rail to adjust the lateral distance between the two positioning columns, further expanding the equipment's adaptability to different rebar specifications.

[0013] This rebar bending machine connects the third threaded rod on one positioning column to the third threaded hole on another positioning column by rotation, thereby vertically splicing and fixing multiple positioning columns in sequence to form a continuous support structure. Simultaneously, to accommodate the simultaneous bending of multiple rebars, the first threaded rod in the connecting column is aligned with and screwed onto the first threaded hole on the adjacent connecting column, achieving a stable extension between the connecting columns and increasing the overall height of the bending column. This ensures it matches the extended positioning column structure, facilitating the simultaneous bending of multiple rebars. Through bending grooves on the positioning columns for placing the rebars, when multiple rebars are placed in their corresponding bending grooves, the stress points are evenly distributed. During the bending process, each rebar bends synchronously at the same radius and angle, effectively avoiding deformation differences caused by misalignment or uneven stress. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall front structure of this utility model; Figure 2 This is a schematic diagram of the rear structure of the present invention; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a cross-sectional view of the positioning post of this utility model. Figure 5 This is a schematic diagram of the structural connecting column of this utility model; Figure 6 This is a schematic diagram of the drive unit structure of this utility model; Figure 7 For the present utility model Figure 6A magnified structural diagram of point A in the middle.

[0016] In the diagram: 1. Bending table; 2. Drive unit; 21. Motor; 22. Main gear; 23. Driven gear; 24. Rotating rod; 3. Rotating plate; 31. Rotating groove; 4. Adjusting seat; 5. Threaded slider; 6. Ball bearing; 7. Screw; 8. Bending column; 81. Connecting column; 82. First threaded hole; 83. First threaded rod; 9. Positioning column; 91. Lower positioning column; 92. Second threaded hole; 93. Second threaded rod; 94. Upper positioning column; 10. Third threaded rod; 11. Third threaded hole; 12. Bending groove; 13. Slide rail; 14. Slider; 15. Electric telescopic rod; 16. Controller; 17. Storage box. Detailed Implementation

[0017] 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.

[0018] This embodiment discloses a rebar bending machine, according to the attached... Figure 1 To be continued Figure 7 As shown, the device includes a bending table 1, inside which is a drive unit 2. The drive unit 2 consists of a motor 21, a main gear 22, a driven gear 23, and a rotating rod 24. The motor 21 is fixedly installed on the inner wall of the bending table 1. The output shaft of the motor 21 is connected to the main gear 22, causing the motor 21 to drive the main gear 22 to rotate. The main gear 22 meshes with the driven gear 23, causing the main gear 22 to drive the driven gear 23 to rotate. The driven gear 23 is fixedly connected to the rotating rod 24, and one end of the rotating rod 24 is rotatably connected to the inner wall of the bending table 1. An angle sensor is provided on the top of the rotating rod 24 to monitor the rotation angle of the rotating rod 24. The other end of the rotating rod 24 drives the bending unit to rotate. The bending unit consists of a rotating plate 3, an adjusting seat 4, a threaded slider 5, a screw 7, and a bending column 8. The rotating plate 3 is fixedly connected to the rotating rod 24. The rotating plate 3 is slidably connected along the rotating groove 31 opened on the top of the bending table 1. One end of the rotating plate 3 passes through the bending table 1 and is fixedly connected to the adjusting seat 4. The interior of the adjusting seat 4 is rotatably connected to the screw 7. The screw 7 is helically connected to the threaded slider 5, so that the screw 7 drives the threaded slider 5 to slide in the groove in the adjusting seat 4. Several balls 6 are movably installed at the bottom of the threaded slider 5 to reduce the friction between the threaded slider 5 and the surface of the bending table 1. A bending column 8 is fixedly connected to the top of the threaded slider 5 so that the bending column 8 is used to bend the reinforcing bars. A positioning column 9 is fixedly installed on the bending table 1 at the rotation center axis of the bending unit. Another positioning column 9 is set above the positioning column 9, so that the equipment can bend multiple steel bars at the same time. The positioning post 9 includes a lower positioning post 91, a second threaded hole 92, a second threaded rod 93, and an upper positioning post 94. The third threaded rod 10 is fixedly installed at the bottom of the lower positioning post 91. The second threaded rod 93, which is fixedly connected to the bottom of the upper positioning post 94, is threadedly connected to the second threaded hole 92 opened at the top of the lower positioning post 91, thus fixing the upper positioning post 94 and the lower positioning post 91 together. Then, rotating the upper positioning post 94 drives the second threaded rod 93 to move upward, adjusting the distance between the upper positioning post 94 and the bending groove 12 on the lower positioning post 91. This is suitable for steel bars of different diameters. Two positioning columns 9 are rotatably connected to the steel bar input platform of the bending table 1. One positioning column 9 is on the same horizontal line as the positioning column 9 located at the rotation center of the bending unit. The bottom of the other positioning column 9 is rotatably connected to a slider 14. A telescopic unit for driving the slider 14 to slide is installed on one side of the slider 14. The telescopic unit consists of a slide rail 13 and an electric telescopic rod 15. The slide rail 13 is fixedly installed on the bending table 1, and the slider 14 slides on the track opened in the slide rail 13. One side of the slider 14 is fixedly connected to the telescopic end of the electric telescopic rod 15, so that the electric telescopic rod 15 pushes the slider 14 to slide along the track in the slide rail 13. The distance between the two positioning columns 9 can be adjusted, which is suitable for steel bars of different diameters. Each positioning post 9 has a bending groove 12 on its surface, which is used to place the reinforcing bars. A locking unit is provided between two positioning posts 9 to fix them together. The locking unit includes a third threaded rod 10 and a third threaded hole 11. The third threaded rod 10, which is fixedly connected to the bottom of the positioning post 9, is threadedly connected to the third threaded hole 11 on the top of the other positioning post 9, thereby fixing the two positioning posts 9 together. This allows the equipment to be used to bend multiple reinforcing bars simultaneously. The reinforcing bars are placed in the bending groove 12, so that multiple reinforcing bars are on the same vertical plane and are subjected to uniform force. The bending post 8 is composed of a connecting post 81, a first threaded hole 82, and a first threaded rod 83. The first threaded rod 83, which is fixedly connected to the bottom of the connecting post 81, is threadedly connected to the first threaded hole 82 on the other connecting post 81, fixing the two adjacent connecting posts 81 together. The height of the bending post 8 can be adjusted according to the number of reinforcing bars.

[0019] A controller 16 is fixedly connected to the side of the bending table 1. The controller 16 is electrically connected to the electric telescopic rod 15, the motor 21, and the angle sensor, so that the controller 16 controls the start and stop of the electric telescopic rod 15 and the motor 21 as well as the bending angle of the steel bar. (The above is the prior art, so the working principle will not be described in detail here).

[0020] A storage box 17 for storing the positioning column 9 is fixedly connected to the bottom support of the bending table 1.

[0021] This embodiment of the utility model takes clamping steel bars of different diameters as an example, combined with the attached... Figure 1 Detailed Workflow: The workflow is as follows: Based on the diameter of the reinforcing bar to be bent, first rotate the upper positioning post 94 to drive the second threaded rod 93 to rotate, causing it to unscrew into the second threaded hole 92 on the lower positioning post 91, thereby releasing the lock on the bending groove 12 space and facilitating the adjustment of the opening and closing dimensions of the bending groove 12. At the same time, by rotating the screw 7, the threaded slider 5 that is threaded with it is driven to move linearly along the slide groove in the adjusting seat 4, thereby driving the bending column 8 to move synchronously, so as to achieve precise adjustment of the distance between the bending column 8 and the positioning column 9, so as to meet the clamping requirements of steel bars of different diameters.

[0022] In addition, the controller activates the electric telescopic rod 15, which pushes the slider 14 to slide horizontally along the guide rail on the slide rail 13, thereby adjusting the lateral spacing between the two positioning columns 9 and further expanding the equipment's adaptability to steel bars of different specifications.

[0023] By combining mechanical thread adjustment with electric automatic adjustment, the equipment achieves multi-dimensional adjustability of the bending groove space, the distance between bending column 8 and positioning column 9, and the distance between the two positioning columns 9, which significantly improves the versatility and flexibility of the rebar bending machine.

[0024] This utility model embodiment takes bending multiple steel bars simultaneously as an example, combined with the attached... Figure 1 Detailed Workflow: The workflow is as follows: Based on the required number of steel bars to be bent, take out the corresponding number of positioning posts 9 from the storage box 17. Align the third threaded rod 10 on one positioning post 9 with the third threaded hole 11 on another positioning post 9, and achieve threaded connection by rotation, thereby vertically splicing and fixing multiple positioning posts 9 in sequence to form a continuous support structure.

[0025] Meanwhile, in order to meet the requirement of simultaneous bending of multiple steel bars, the first threaded rod 83 in the connecting column 81 is aligned with the first threaded hole 82 on the adjacent connecting column 81 and screwed together to achieve a stable extension between the connecting columns 81, thereby increasing the overall height of the bent column 8 and ensuring that it matches the structure of the extended positioning column 9.

[0026] Each positioning post 9 is provided with a bending groove 12 for placing steel bars. When multiple steel bars are placed in the corresponding bending groove 12, the stress points are evenly distributed. During the bending process, each steel bar bends synchronously at the same radius and angle, effectively avoiding deformation differences caused by misalignment or uneven stress.

[0027] This modular splicing structure enables the rapid expansion of positioning column 9 and connecting column 81 through threaded connection, which not only improves the equipment's adaptability to processing multiple steel bars at the same time, but also ensures that the steel bars are neatly arranged and subjected to consistent stress, significantly improving the efficiency, accuracy and consistency of bending operations.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 steel bar bending machine, comprising a bending table (1) and a driving unit (2) for bending steel bars, characterized in that: The drive unit (2) is located inside the bending table (1), and the drive unit (2) is connected to the bending unit. The bending unit has a positioning column (9) fixedly installed on the bending table (1) at the rotation center axis. The positioning column (9) is used to position the reinforcing bar. Two positioning columns (9) are rotatably connected to the steel bar input table of the bending table (1). The two positioning columns (9) are used for positioning and conveying the steel bars. A slider (14) is rotatably connected to the bottom of one of the positioning columns (9), and the slider (14) is slidably connected to the surface of the bending table (1). A telescopic unit for driving the slider (14) to slide is installed on one side of the slider (14). Each of the positioning posts (9) has a bending groove (12) for placing the reinforcing bar in the center. Another positioning post (9) is provided above the positioning post (9). A locking unit is provided between the two adjacent positioning posts (9) to fix the two adjacent positioning posts (9) together.

2. A steel bar bending machine according to claim 1, characterized in that, The bending unit includes: a rotating plate (3), which is connected to the driving unit (2) in a transmission manner. The rotating plate (3) is slidably connected to the bending table (1), and the top of the bending table (1) is provided with a rotating groove (31) that matches the size of the rotating plate (3). The adjusting seat (4) is fixedly connected to one end of the rotating plate (3) extending outside the bending table (1); The threaded slider (5) is slidably connected inside the adjusting seat (4); The screw (7) is rotatably connected inside the adjusting seat (4), and the screw (7) is helically connected to the threaded slider (5); A bending column (8) is set on top of the threaded slider (5); The bending column (8) includes: a connecting column (81), a first threaded hole (82), and a first threaded rod (83). The bottom of the connecting column (81) is fixedly connected to the first threaded rod (83), and the top of the connecting column (81) is provided with a first threaded hole (82) that matches the size of the first threaded rod (83).

3. A steel bar bending machine according to claim 2, characterized in that, The driving unit (2) includes: The motor (21) is located inside the bending table (1); The main gear (22) is connected to the output shaft of the bending table (1); The driven gear (23) meshes with the main gear (22); The rotating rod (24) is fixedly connected to the center of the driven gear (23). One end of the rotating rod (24) is rotatably connected to the inner wall of the bending table (1), and the other end of the rotating rod (24) is fixedly connected to the rotating plate (3).

4. A steel bar bending machine according to claim 1, characterized in that, The telescopic unit includes: a slide rail (13) disposed on the top of the bending table (1), and the interior of the slide rail (13) is slidably connected to the slider (14); The electric telescopic rod (15) is connected to the slider (14) in a transmission manner, so that the telescopic end of the electric telescopic rod (15) drives the slider (14) to slide inside the slide rail (13).

5. A steel bar bending machine according to claim 1, characterized in that, The locking unit includes: a third threaded hole (11), which is disposed on the top of the positioning post (9); The third threaded rod (10) is located at the bottom of the positioning post (9), and the third threaded rod (10) is threadedly connected to the third threaded hole (11), so that the two adjacent positioning posts (9) are fixedly connected together.

6. A steel bar bending machine according to claim 5, characterized in that, The positioning post (9) includes: The lower half positioning post (91) is fixedly connected to the third threaded rod (10); The second threaded hole (92) is provided on the top of the lower half positioning post (91); The upper positioning post (94) is positioned directly above the lower positioning post (91); The second threaded rod (93) is located at the bottom of the upper positioning post (94), and the second threaded rod (93) is threadedly connected to the second threaded hole (92), so that the lower positioning post (91) is fixedly connected to the upper positioning post (94).

7. A steel bar bending machine according to claim 2, characterized in that, The bottom of the threaded slider (5) is movably connected to several balls (6).

8. A steel bar bending machine according to claim 1, characterized in that, The bottom of the bending table (1) is fixedly connected to a storage box (17) for storing the positioning column (9).

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