Steel bar bender for concrete

Abstract

The utility model provides a steel bar bender for concrete, which relates to the technical field of building technology and comprises a support table, two threaded rods are rotatably mounted on one side of the support table, two oppositely arranged connecting columns are in threaded connection with the threaded rods, opposite sides of the two connecting columns are provided with inserting grooves, inserting columns are inserted into the inserting grooves, and the inserting columns are inserted into the inserting grooves. The opposite ends of the two inserting columns are fixedly connected with two clamping seats, the opposite sides of the two clamping seats are matched for clamping a reinforcing steel bar, in the clamping process, according to the thickness of the reinforcing steel bar, the through holes in the appropriate positions are selected, the inserting pins penetrate through the connecting columns and the corresponding through holes, the inserting columns are fixed, the distance between the two clamping seats is adjusted, and the reinforcing steel bar is clamped. The steel bars with different thicknesses are stably clamped, effective fixing of the steel bars is achieved, and follow-up bending operation is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of building technology, and in particular to a steel bar bending machine for concrete. Background Technology

[0002] Building construction refers to the production activities during the implementation phase of an engineering project. It is the process of building various types of buildings, or the process of turning the lines on design drawings into a physical object at a designated location. It includes foundation construction, main structure construction, roofing construction, and decoration construction. During the building construction process, a building frame needs to be erected first using steel bars.

[0003] Therefore, a concrete rebar bending machine for construction, with publication number CN212310690U, involves inserting one end of a rebar of suitable length between a fixed column and an arc-shaped column. The motor is started, and its output shaft rotates, driving a gear to rotate. The gear meshes with a gear disc, and the rotation of the gear drives the gear disc to rotate. During the rotation of the gear disc, a first sliding sleeve slides along a corresponding first guide rod, causing a second guide rod to slide along the direction of the first guide rod. The second sliding sleeve slides along the second guide rod, driving the extrusion roller to slide along the square track formed by the shaped track hole and the square block. During this process, the I-shaped slider slides along the direction of the groove. Under the elastic force of the spring, the moving structure tends to move away from the direction of the spring guide rod. The rebar is embedded in the arc groove of the extrusion roller and, under the pressure of the extrusion roller, coils around the arc-shaped column sequentially, ultimately forming a square steel ring shape.

[0004] In this device, because the dimensions of the arc groove and arc column of the extrusion roller are fixed, it is only suitable for steel bars within a specific diameter range. If steel bars of different thicknesses need to be processed, a large number of parts may need to be replaced, making the operation cumbersome and costly. Summary of the Invention

[0005] The purpose of this utility model is to solve the problems existing in the prior art, and to propose a steel bar bending machine for concrete.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a rebar bending machine for concrete, comprising a support platform, on one side of which two threaded rods are rotatably mounted, and two opposing connecting posts are threadedly connected to the threaded rods. Slots are provided on the opposite sides of the two connecting posts, and inserts are inserted into the slots. Two clamps are fixedly connected to the opposite ends of the two inserts, and the opposite sides of the two clamps cooperate to clamp the rebar. Multiple through holes are provided on the inserts in a linear array, and pins are provided on the connecting posts, with the pins penetrating through the through holes in adjacent positions.

[0007] Preferably, the support platform is provided with a sliding groove, and a slider that slides along the direction of gravity is slidably connected in the sliding groove. A limit post is fixedly connected to one side of the slider, and two mounting plates located on both sides of the sliding groove are fixedly connected to the other side of the support platform. The mounting plates are also provided with a plurality of through holes arranged in a linear array, wherein two adjacent through holes are provided with pins that are inserted into the slider.

[0008] Preferably, a rotating plate is rotatably connected to the support platform, and curved columns are fixedly connected to both sides of one end of the rotating plate. A motor is fixedly connected to the other side of the support platform, and the main shaft of the motor passes through the support platform and the end of the motor is fixed to the rotating plate.

[0009] Preferably, the limiting post is disposed between the rotating plate and the clamping seat and is located close to the rotating plate.

[0010] Preferably, the two clamps are slidably connected to each other via a track with an arc-shaped plate, and the clamps are fixedly connected to baffles at both ends. The baffles are L-shaped and their bent edges are fitted with the clamps with a clearance.

[0011] Preferably, one end of the threaded rod is fixedly connected to a pulley, and the two pulleys are driven by a belt strip sleeved on the outside. One end of the support platform is also fixedly connected to a motor, and the motor spindle located at one end of the support platform is fixed to one of the threaded rods.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, when clamping, a suitable through hole is selected according to the thickness of the steel bar, and the pin is inserted through the connecting column and the corresponding through hole to fix the pin. Then, the distance between the two clamps is adjusted to stably clamp steel bars of different thicknesses, so as to effectively fix the steel bars and facilitate subsequent bending operations.

[0014] 2. In this utility model, during the bending process of the reinforcing bar, due to stress changes, the reinforcing bar will experience a lateral force. When the reinforcing bar moves laterally, it will move forward and drive the arc plate to move forward, buffering the force between the reinforcing bar and the clamp, protecting the clamp and the reinforcing bar, and ensuring that the bending process proceeds smoothly. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a steel bar bending machine for concrete is provided for this utility model;

[0016] Figure 2 In this utility model Figure 1 A rear-view three-dimensional structural diagram;

[0017] Figure 3 This is a three-dimensional structural diagram of the clamp in this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the arc-shaped plate in this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the slot in this utility model.

[0020] Legend: 1. Support platform; 2. Threaded rod; 3. Connecting column; 4. Clamp; 5. Pin; 6. Limiting column; 7. Baffle; 8. Slide groove; 9. Pulley; 10. Motor; 11. Mounting plate; 12. Through hole; 13. Slot; 14. Slider; 15. Arc plate; 16. Insert column; 17. Rotating plate; 18. Bending column. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] like Figure 1-5 As shown, a rebar bending machine for concrete includes a support platform 1. Two threaded rods 2 are rotatably mounted on one side of the support platform 1. Two opposing connecting posts 3 are threadedly connected to the threaded rods 2. Slots 13 are opened on the opposite sides of the two connecting posts 3. Inserted posts 16 are inserted into the slots 13. Two clamps 4 are fixedly connected to the opposite ends of the two inserted posts 16. The opposite sides of the two clamps 4 cooperate to clamp the rebar. Multiple through holes 12 are opened on the inserted posts 16 in a linear array. Pins 5 are provided on the connecting posts 3. The pins 5 penetrate through the through holes 12 in adjacent positions.

[0024] In this technical solution, by rotating the two threaded rods 2 on one side of the support platform 1, the threaded connection between the threaded rods 2 and the connecting column 3 is utilized to make the two connecting columns 3 move together. When the connecting column 3 moves, it drives the insert 16 and the clamp 4 connected to it to move synchronously. The clamp 4 clamps the reinforcing bar on the opposite side, thereby driving the reinforcing bar to move. When clamping, according to the thickness of the reinforcing bar, a suitable through hole 12 is selected, and the pin 5 passes through the connecting column 3 and the corresponding through hole 12 to fix the insert 16. Then, the distance between the two clamps 4 is adjusted to stably clamp reinforcing bars of different thicknesses, thereby achieving effective fixation of the reinforcing bar and facilitating subsequent bending operations.

[0025] In addition, a pin 5 is also provided between the two clamps 4 to improve the stability of clamping.

[0026] like Figure 1 and Figure 2 As shown, a sliding groove 8 is provided on the support platform 1, and a slider 14 that slides along the direction of gravity is slidably connected in the sliding groove 8. A limit post 6 is fixedly connected to one side of the slider 14, and two mounting plates 11 located on both sides of the sliding groove 8 are fixedly connected to the other side of the support platform 1. Multiple through holes 12 distributed in a linear array are also provided on the mounting plates 11, and pins 5 that are inserted into the slider 14 are provided in two adjacent through holes 12.

[0027] In this technical solution, by setting a limiting post 6, when bending the reinforcing bar, the limiting post 6 abuts behind the bending point of the reinforcing bar to prevent the reinforcing bar between the clamp 4 and the bending post 18 from bending prematurely. Specifically, the reinforcing bar is placed between two clamps 4 and clamped and fixed. According to the position and angle of the reinforcing bar to be bent, the position of the slider 14 in the groove 8 is adjusted, that is, the slider 14 slides along the direction of gravity. After adjusting the position, the pin 5 is inserted into the appropriate through hole 12 on the mounting plate 11 and connected to the slider 14, thereby fixing the position of the slider 14 and placing the limiting post 6 at the corresponding position behind the bending point of the reinforcing bar.

[0028] like Figure 1 and Figure 2 As shown, a rotating plate 17 is rotatably connected to the support platform 1. Bending columns 18 are fixedly connected to both sides of one end of the rotating plate 17. A motor 10 is fixedly connected to the other side of the support platform 1. The main shaft of the motor 10 passes through the support platform 1 and the end of the motor is fixed to the rotating plate 17. The limiting column 6 is set between the rotating plate 17 and the clamp 4 and is set close to the rotating plate 17.

[0029] In this technical solution, the motor 10 is started, and the main shaft of the motor 10 begins to rotate, driving the rotating plate 17 to rotate. The bending columns 18 fixed on both sides of one end of the rotating plate 17 rotate synchronously with the rotating plate 17. When the steel bar is fixed in position by the clamp 4, the bending column 18 will contact the steel bar and apply force to it when it rotates. As the rotating plate 17 continues to rotate, the bending column 18 continuously squeezes and pushes the steel bar, causing the steel bar to bend.

[0030] like Figure 3 and Figure 4 As shown, the two clamps 4 are slidably connected to the opposite sides by a track with an arc plate 15. The clamps 4 are fixedly connected to the two ends with baffles 7. The baffles 7 are L-shaped and their bent edges are fitted with the clamps 4 with a clearance.

[0031] In this technical solution, when the reinforcing bar is bent, stress changes will cause the reinforcing bar to have a lateral force. By setting the arc plate 15, when the reinforcing bar moves laterally, it will move forward, driving the arc plate 15 to move forward, thereby buffering the force between the reinforcing bar and the clamp 4.

[0032] like Figure 1As shown, a pulley 9 is fixedly connected to one end of the threaded rod 2. The two pulleys 9 are driven by a belt strip. A motor 10 is also fixedly connected to one end of the support platform 1. The main shaft of the motor 10 located at one end of the support platform 1 is fixed to one of the threaded rods 2.

[0033] Working principle: Start the motor 10 located at one end of the support platform 1. The main shaft of the motor 10 drives the threaded rod 2 to rotate. Through the transmission of the pulley 9 and the belt, the two threaded rods 2 will rotate synchronously. When the threaded rod 2 rotates, the two oppositely arranged connecting posts 3 move closer or further away synchronously. The movement of the connecting posts 3 drives the insert post 16 and the clamping seat 4 to move synchronously, thereby driving the clamped steel bar to move. According to the thickness of the steel bar, select the appropriate through hole 12 on the insert post 16, insert the pin 5 through the connecting post 3 and the corresponding through hole 12, fix the insert post 16, and then adjust the distance between the two clamping seats 4 to stably clamp the steel bar.

[0034] The wiring diagram of the motor 10 in this utility model is common knowledge in the field, and its working principle is a well-known technology. The appropriate model is selected according to actual use. Therefore, the control method and wiring layout of the motor 10 will not be explained in detail.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A steel bar bending machine for concrete, comprising a support platform (1), characterized in that: Two threaded rods (2) are rotatably installed on one side of the support platform (1). Two oppositely arranged connecting columns (3) are threadedly connected to the threaded rods (2). Slots (13) are opened on the opposite sides of the two connecting columns (3). Inserts (16) are inserted into the slots (13). Two clamps (4) are fixedly connected to the opposite ends of the two inserts (16). The opposite sides of the two clamps (4) are used to clamp the reinforcing bars. Multiple through holes (12) are opened on the inserts (16) in a linear array. Pins (5) are provided on the connecting columns (3). The pins (5) penetrate through the through holes (12) in the same position.

2. The steel bar bending machine for concrete according to claim 1, characterized in that: The support platform (1) is provided with a sliding groove (8), and a slider (14) that slides along the direction of gravity is slidably connected in the sliding groove (8). A limit post (6) is fixedly connected to one side of the slider (14), and two mounting plates (11) located on both sides of the sliding groove (8) are fixedly connected to the other side of the support platform (1). Multiple through holes (12) arranged in a linear array are also provided on the mounting plates (11), and pins (5) that are inserted into the slider (14) are provided in two adjacent through holes (12).

3. The concrete rebar bending machine according to claim 2, characterized in that: A rotating plate (17) is rotatably connected to the support platform (1). A bent column (18) is fixedly connected to both sides of one end of the rotating plate (17). A motor (10) is fixedly connected to the other side of the support platform (1). The main shaft of the motor (10) passes through the support platform (1) and the end of the motor (10) is fixed to the rotating plate (17).

4. The concrete rebar bending machine according to claim 3, characterized in that: The limiting post (6) is located between the rotating plate (17) and the clamp (4) and is close to the rotating plate (17).

5. The concrete rebar bending machine according to claim 1, characterized in that: Two clamps (4) are slidably connected to an arc plate (15) via a track on opposite sides. The clamps (4) are fixedly connected to baffles (7) at both ends. The baffles (7) are L-shaped and their bent edges are fitted with the clamps (4) with a clearance.

6. The concrete rebar bending machine according to claim 1, characterized in that: One end of the threaded rod (2) is fixedly connected to a pulley (9), and the two pulleys (9) are driven by a belt strip. One end of the support platform (1) is also fixedly connected to a motor (10), and the main shaft of the motor (10) located at one end of the support platform (1) is fixed to one of the threaded rods (2).

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