An intelligent steel bar mesh tying machine and its tying method

Abstract

The present invention relates to an intelligent steel bar mesh tying machine and its tying method. The intelligent steel bar mesh tying machine includes: a steel bar tying platform; an operation control module is respectively connected to control a moving mechanism, a wire feeding mechanism, and a tying mechanism; the moving mechanism includes a moving platform and a walking shaft, the walking shaft is arranged on both sides of the steel bar tying platform, the moving platform is slidably connected to the walking shaft, and the moving platform is located above the steel bar tying platform; the wire feeding mechanism is arranged above the moving platform, and the steel wire for tying the steel bars in a whole roll is installed on the wire feeding mechanism and conveyed to the tying mechanism through it; the tying mechanism includes a tying manipulator, a tying machine, and a detection camera, the tying machine and the detection camera are both connected to the tying manipulator, the detection camera locates and detects the position of the point to be tied and feeds it back to the tying manipulator, and the tying manipulator drives the tying machine to tie the point to be tied. The tying manipulator cooperates with visual positioning judgment for tying, realizes high-speed tying, and saves a large amount of human resources.

Description

Technical Field

[0001] The present invention relates to the technical field of construction equipment, and particularly relates to an intelligent steel bar mesh tying machine and a bundling method thereof. Background Art

[0002] There are currently two ways to bundle steel bar meshes in China: one is manual bundling, and the other is to use a handheld rechargeable automatic bundling tool manually. It has a complete control circuit and can complete all steps of bundling steel bars. Its main features are: the bundling speed is fast, and it takes 0.8 s on average to complete one tying section, which is 3 to 4 times that of manual bundling.

[0003] Currently, the labor intensity of manually bundling steel bars is high. It is often difficult to improve work efficiency relying solely on manual bundling, and a large amount of human resources are wasted. When using a handheld rechargeable automatic bundling tool for manual operation, although the efficiency is greatly improved compared with pure manual bundling, manual work is still required. Under the condition of high-speed operation of the handheld rechargeable automatic bundling tool, the corresponding labor intensity of the operator is also high. Summary of the Invention

[0004] The present invention provides an intelligent steel bar mesh tying machine and a bundling method thereof, aiming to solve the problems of high labor intensity and low efficiency in bundling steel bars by existing manual operations.

[0005] The present invention provides an intelligent steel bar mesh bundling machine, including:

[0006] A steel bar bundling platform for placing steel bars to be tied;

[0007] An operation control module, which is respectively connected to control a moving mechanism, a wire feeding mechanism, and a bundling mechanism;

[0008] The moving mechanism includes a moving platform and a walking shaft. The walking shaft is arranged on both sides of the steel bar bundling platform. The moving platform is slidably connected to the walking shaft and is located above the steel bar bundling platform;

[0009] The wire feeding mechanism is arranged above the moving platform. The steel wire for bundling the whole roll of steel bars is installed on the wire feeding mechanism and is conveyed to the bundling mechanism through it;

[0010] The bundling mechanism includes a bundling manipulator, a bundling machine, and a detection camera. The bundling machine and the detection camera are both connected to one end of the bundling manipulator. The other end of the bundling manipulator is connected to the lower part of the moving platform. The detection camera locates and detects the position of the point to be bundled and feeds it back to the bundling manipulator. The bundling manipulator drives the bundling machine to bundle the point to be bundled.

[0011] As a further improvement of the present invention, the steel bar bundling platform is provided with a steel bar positioning card slot and platform conveying rollers. The steel bar positioning card slot is arranged at the side end of the steel bar bundling platform to position the placement position of the steel bars, and the platform conveying rollers drive the steel bars to the bundling area. The steel bar positioning card slot defines the placement position of the steel bars, making preliminary preparations for subsequent bundling. The platform conveying rollers are used to convey the steel bars to be bundled into the processing area and then convey the steel bars out of the processing area after processing.

[0012] As a further improvement of the present invention, the wire feeding mechanism includes a steel wire coiling table, a transition wheel, a driving wheel for pulling the steel wire to move, and a wire feeding hose. The steel wire coiling table, the transition wheel, the driving wheel, and the wire feeding hose are arranged on the mounting plate according to the steel wire path. The whole coil of steel wire is installed on the steel wire coiling table, and the steel wire sequentially passes through the driving wheel and the transition wheel and enters the wire feeding hose, and is conveyed to the bundling machine through the wire feeding hose. The wire feeding mechanism is used to send the steel wire to the bundling machine and gradually convey it according to the consumption speed of the steel wire after bundling at any time.

[0013] As a further improvement of the present invention, the bundling machine is provided with a manipulator mounting surface and a power signal interface. The bundling machine is fixed on the bundling manipulator through the manipulator mounting surface, and the bundling machine is connected to the operation control module through the power signal interface. The original handheld bundling machine is connected to the bundling manipulator through the manipulator mounting surface and is transformed through the power signal connection to output a bundling completion signal after bundling, realizing more efficient and accurate bundling.

[0014] As a further improvement of the present invention, the bundling manipulator is a six-axis manipulator, the detection camera is a CCD vision detection camera. A manipulator bracket is arranged at the end of the bundling manipulator. The bundling machine and the detection camera are both connected to the manipulator bracket. A wire cutting clamp arm is arranged at the front end of the bundling machine, and the lens of the detection camera faces the direction of the wire cutting clamp arm of the bundling machine. The CCD vision detection camera detects the position to be bundled by the bundling machine. The result of whether the bundling machine can bundle at the current bundling point and the position data that the bundling point needs to be offset are sent to the six-axis manipulator through data transmission, and the six-axis manipulator performs position compensation offset for accurate positioning and bundling.

[0015] As a further improvement of the present invention, induction electrodes are arranged on the steel bar bundling platform, the wire feeding mechanism, and the bundling machine, and the induction electrodes are connected to the operation control module; a positive contact point of the induction electrode is arranged on one side of the wire feeding mechanism, a negative contact point of the induction electrode is arranged on the steel bar bundling platform, a steel wire breakage induction electrode is arranged on the other side of the wire feeding mechanism, and a steel wire cutting induction electrode is arranged on the bundling machine. The induction electrodes are set to facilitate the system to timely feedback the situation of the steel wire, including the incoming situation of the steel wire and the steel wire cutting situation.

[0016] As a further improvement of the present invention, the steel bar bundling platform is provided with a plurality of elevated platforms, and the plurality of elevated platforms are arranged in the middle of the steel bar bundling platform and bear the middle position of the steel bars. The steel bars are bent under gravity in the middle part of the platform, and the part attached to the steel bar platform is artificially elevated to reduce the bending degree of the steel bars.

[0017] An intelligent bundling method for steel bar mesh includes the following steps:

[0018] S1. Build a steel bar framework on the steel bar bundling platform according to the infrastructure drawing, drive the platform conveying rollers to send the steel bar platform to the wire bundling area to be processed, and place it according to the steel bar positioning card slots;

[0019] S2. Install the steel wire on the steel wire coiling table, and convey it to the bundling machine through the driving wheel, the idler wheel and the wire feeding hose;

[0020] S3. Judge the position of the intersection of the steel bar mesh to be bundled and whether the reinforcing bars can meet the bundling conditions of the bundling machine. Send the result of whether the current bundling point can be bundled by the bundling machine and the position data of the offset required for the bundling point to the bundling manipulator through data transmission. The bundling manipulator performs accurate positioning and bundling after compensating for the position offset;

[0021] S4. The bundling manipulator drives the bundling machine to perform bundling, and outputs a bundling completion signal after completion;

[0022] S5. Judge whether the steel wire feeding condition and the steel wire cutting condition after bundling are normal through the voltage of each section of induction electrode. If it is normal, execute S6; if it is not normal, issue a warning;

[0023] S6. After bundling is completed, drive the platform conveying rollers to convey the steel bar platform out of the wire bundling area through signal feedback.

[0024] As a further improvement of the present invention, in step S3, judging whether the reinforcing bars can meet the bundling conditions of the bundling machine includes: judging whether the intersection position of the steel bar mesh is within the range of ±20 mm directly below the V-shaped small bars of the reinforcing bars. If it is satisfied, send the result and the position data of the offset required for the bundling point to the bundling manipulator; if it is not satisfied, set the bundling manipulator to automatically skip and not bundle, and continue to judge the next point.

[0025] As a further improvement of the present invention, step S5 specifically includes:

[0026] S51. Judging the steel wire feeding condition: The operation control module senses the voltage change of the steel wire breakage induction electrode on the wire feeding mechanism. If there is a voltage value, perform the next operation; if the voltage value is zero, issue a warning;

[0027] S52. Judging the wire cutting situation: The operation control module senses the voltage change of the cutting induction electrode on the bundling machine. If there is a voltage value, the next operation is executed. If the voltage value is zero, a warning is issued.

[0028] The beneficial effects of the present invention are as follows: According to the results of CCD vision detection, the present invention sends the result of whether the bundling machine can bundle and the position data of the offset required at the bundling point under the current bundling point to the bundling manipulator through data transmission. The bundling manipulator performs accurate positioning, and the bundling machine installed on the bundling robot performs bundling, so as to reduce the labor intensity of workers and save costs. Description of the Drawings

[0029] Figure 1 is the overall layout diagram of an intelligent steel bar net bundling machine of the present invention;

[0030] Figure 2 is the structural schematic diagram of the steel bar bundling platform in the present invention;

[0031] Figure 3 is the structural schematic diagram of the wire feeding mechanism in the present invention;

[0032] Figure 4 is the structural schematic diagram of the bundling machine in the present invention;

[0033] Figure 5 is the structural schematic diagram of the bundling manipulator in the present invention. Detailed Embodiments

[0034] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments.

[0035] Embodiment 1:

[0036] As Figures 1 to 5 shown, an intelligent steel bar net bundling machine of the present invention includes: a steel bar bundling platform 1 for placing the steel bars to be tied; the steel bar bundling platform 1 is provided with a steel bar positioning card slot 11 and platform conveying rollers 12. The steel bar positioning card slot 11 is arranged at the side end of the steel bar bundling platform 1 to position the placement position of the steel bars, and the platform conveying rollers 12 drive the steel bars to the bundling area. The steel bar bundling platform 1 is provided with a plurality of cushion platforms, and the plurality of cushion platforms are arranged in the middle of the steel bar bundling platform to bear the middle position of the steel bars.

[0037] Manually build a steel bar framework on the steel bar bundling platform 1 according to the infrastructure drawing. The steel bars are bent under gravity in the middle part of the platform, and the part attached to the steel bar bundling platform 1 is manually padded to a height of 3 cm from the steel bar bundling platform 1. The steel bar bundling platform 1 is manually triggered by a button, and the platform conveying rollers 12 drive the steel bars to the wire bundling area.

[0038] The intelligent steel bar mesh bundling machine includes a moving mechanism 2, which includes a moving platform 21 and a walking shaft 22. The walking shaft 22 is arranged on both sides of the steel bar bundling platform 1. The moving platform 21 is slidably connected to the walking shaft 22 and is located above the steel bar bundling platform 1. The walking shaft 22 is the seventh axis for the robot to move. The moving platform 21 can be used to place the equipment to be bundled and drive the equipment to move to the steel bars to be bundled, which is conducive to quickly moving to the required position above the relatively large-area steel bar bundling platform 1, eliminating the need for multiple workers to operate simultaneously, reducing labor costs and improving work efficiency.

[0039] The intelligent steel bar mesh bundling machine includes a wire feeding mechanism 3, which is arranged above the moving platform 21. The steel wire for bundling the steel bars in a whole roll is installed on the wire feeding mechanism 3 and is conveyed to the bundling mechanism 4 through it. The wire feeding mechanism 3 includes a steel wire coiling table 31, a transition wheel 32, a driving wheel 33 for pulling the steel wire to move, and a wire feeding hose 34. The steel wire coiling table 31, the transition wheel 32, the driving wheel 33, and the wire feeding hose 34 are arranged on the mounting plate according to the wire path. The whole roll of steel wire is installed on the steel wire coiling table 31, and the steel wire sequentially passes through the driving wheel 33 and the transition wheel 32 and enters the wire feeding hose 34, and is conveyed to the bundling machine 41 through the wire feeding hose 34. After the steel wire is pulled out from the steel wire coiling table, it passes through the sliding connection of multiple transition wheels 32, and slides into the wire feeding hose 34 under the drive of the driving wheel 33, is sent to the bundling machine 41, and makes a step as the steel wire is consumed during bundling.

[0040] The bundling mechanism 4 includes a bundling manipulator 42, a bundling machine 41, and a detection camera 43. The bundling machine 41 and the detection camera 43 are both connected to one end of the bundling manipulator 42. A light source 46 is arranged in the lens direction of the detection camera 43. The other end of the bundling manipulator 42 is connected to the lower part of the moving platform 21. The detection camera 43 locates and detects the position of the point to be bundled and feeds it back to the bundling manipulator 42, and the bundling manipulator 42 drives the bundling machine 41 to bundle the point to be bundled.

[0041] The bundling machine 41 is provided with a manipulator mounting surface 44 and a power signal interface 45. The bundling machine 41 is fixed on the bundling manipulator 42 through the manipulator mounting surface 44, and the bundling machine 41 is connected to the operation control module through the power signal interface 45. The power signal interface 45 is used to receive the signal from the operation control module, and when it receives the operation signal, it will perform bundling, replacing the manual judgment operation and improving work efficiency.

[0042] The bundling manipulator 42 is a six-axis manipulator. The bundling manipulator 42 moves with the moving platform 21. When it moves to the corresponding bundling position, the six-axis manipulator accurately aligns the bundling machine with the bundling position for bundling.

[0043] The operation control module is respectively connected to the control mobile mechanism 2, the wire feeding mechanism 3, and the bundling mechanism 4. The operation control module is installed in the robot control cabinet 5, and the robot control cabinet 5 is placed at the upper end of the mobile platform. The operation control module collects the data fed back by the detection camera 43 and controls the movement of the mobile platform 21, the operation of the wire feeding mechanism 3, and the bundling actions of the bundling manipulator 42 and the bundling machine 41 on the steel bars, so as to complete the bundling of the steel bar cross intersections 13 and the steel bar mesh reinforcement bars 14 by the intelligent steel bar mesh bundling machine.

[0044] The detection camera 43 is a CCD vision detection camera. A manipulator support is provided at the end of the bundling manipulator 42. The bundling machine 41 and the detection camera 43 are both connected to the manipulator support. A wire cutting clamp arm 47 is provided at the front end of the bundling machine 41. The lens of the detection camera 43 faces the direction of the wire cutting clamp arm 47 of the bundling machine. By using the method of CCD vision detection and positioning, the position of the steel bar cross intersection 13 and whether the reinforcement bar 14 meets the bundling conditions of the bundling machine are judged, and the information detected by vision is fed back to the bundling manipulator 42 for operation, ensuring the accuracy and efficiency of bundling.

[0045] Embodiment 2:

[0046] As Figures 1 to 4 shown, induction electrodes are provided on the steel bar bundling platform 1, the wire feeding mechanism 3, and the bundling machine 41. The induction electrodes are connected to the operation control module. A positive connection point of the induction electrode is provided on one side of the wire feeding mechanism 3, a negative connection point of the induction electrode is provided on the steel bar bundling platform 1, a steel wire breakage induction electrode is provided on the other side of the wire feeding mechanism 3, and a steel wire cutting induction electrode is provided on the bundling machine 41. The induction electrodes detect whether the steel wire is broken, including detecting whether the steel wire will break in the middle during the wire feeding process to ensure the normal supply of the steel wire. If the supply is not normal, a warning will be given, and the staff can quickly react and make adjustments. After bundling, it is detected whether the steel wire is broken. If it is not broken, a warning will be given. If it is broken, the operation will be executed normally, avoiding the unbroken steel wire from pulling the steel bars and affecting the operation safety.

[0047] Embodiment 3:

[0048] As Figures 1 to 5 shown, based on the bundling method of an intelligent steel bar mesh bundling machine of the present invention, the following steps are included:

[0049] S1. Build a steel bar framework on the steel bar bundling platform 1 according to the infrastructure drawing, drive the platform conveying roller 12 to send the steel bar platform to the area to be bundled with steel wire, and place it according to the steel bar positioning card slot 11;

[0050] S2. Install the steel wire on the steel wire coiling table 31 and convey it to the bundling machine 41 through the driving wheel 33, the idler wheel 32, and the wire feeding hose 34;

[0051] S3. Determine the position of the intersection points 13 of the steel bar mesh to be bundled and whether the stiffeners 14 can meet the bundling conditions of the bundling machine 41. Send the bundling result of the current bundling point by the bundling machine 41 and the position data of the offset required for the bundling point to the bundling manipulator 42 through data transmission. After compensating and offsetting the position, the bundling manipulator 42 performs accurate positioning and bundling.

[0052] S4. The bundling manipulator 42 drives the bundling machine to perform bundling and outputs a bundling completion signal after completion.

[0053] S5. Determine whether the steel wire feeding condition and the steel wire cutting condition after bundling are normal through the voltages of each section of induction electrodes. If normal, execute S6; if not normal, issue a warning.

[0054] S6. After bundling is completed, through signal feedback, drive the platform conveying roller 12 to convey the steel bar platform out of the steel wire bundling area.

[0055] Determine the position of the intersection points 13 of the steel bar mesh and whether the stiffeners 14 can meet the bundling conditions of the bundling machine 41. According to the results of CCD vision detection, send the bundling result of the current bundling point by the bundling machine 41 and the position data of the offset required for the bundling point to the six-axis manipulator through data transmission. The six-axis manipulator performs position compensation and offset for accurate positioning and binding.

[0056] The handheld bundling machine 41 is changed to be flange-mounted on the six-axis robot, and the rechargeable type is changed to be directly powered by a power supply. The original handheld rechargeable automatic bundling tool relies on manual visual judgment to determine whether bundling is completed. Now, the control circuit is modified to output a bundling completion signal after bundling is completed, realizing more efficient and accurate bundling.

[0057] Among them, in step S3, to determine whether the stiffeners can meet the bundling conditions of the bundling machine 41, it includes: judging whether the position of the intersection points of the steel bar mesh is within the range of ±20 mm directly below the V-shaped small bars of the stiffeners. If it meets the condition, send the result and the position data of the offset required for the bundling point to the bundling manipulator 42; if it does not meet the condition, set the bundling manipulator 42 to automatically skip and not bundle, and continue to judge the next point.

[0058] After the bundling action is completed, detect the bundling result and the binding completion. Using the isolated power supply method, sense the steel wire feeding condition and the steel wire cutting condition after bundling by judging the induction voltages of each section of electrodes. Specifically, step S5 specifically includes:

[0059] S51. Judgment of steel wire feeding condition: The operation control module senses the voltage change of the steel wire breakage induction electrode on the wire feeding mechanism 3. If there is a voltage value, perform the next operation; if the voltage value is zero, issue a warning. During the bundling production process, the material state of the steel wire can be judged through the induction electrode, and material abnormality warning can be carried out in advance.

[0060] S52. Judgment on wire cutting situation: The operation control module senses the voltage change of the cutting induction electrode on the strapping machine 41. If there is a voltage value, the next operation is executed. If the voltage value is zero, a warning is issued. The induction electrodes of each section can be used to judge whether the wire is cut after strapping is completed.

[0061] In the present invention, a strapping machine 41 which is transformed into flange installation and has a completion signal feedback is installed on a robot of the seventh-axis truss, and intelligent binding of the steel bar mesh is carried out in cooperation with visual positioning judgment, so as to achieve high-speed binding and save a large amount of human resources.

[0062] The above content is a further detailed description of the present invention in combination with specific preferred implementation manners, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can be made, and all should be regarded as belonging to the protection scope of the present invention.

Claims

1. An intelligent steel bar mesh bundling machine, characterized in that, Including: A steel bar bundling platform for placing steel bars to be bundled; An operation control module, which is respectively connected to control a moving mechanism, a wire feeding mechanism, and a bundling mechanism; The moving mechanism includes a moving platform and a walking shaft. The walking shaft is arranged on both sides of the steel bar bundling platform. The moving platform is slidably connected to the walking shaft and is located above the steel bar bundling platform; The wire feeding mechanism is arranged above the moving platform. The steel wire for bundling the whole roll of steel bars is installed on the wire feeding mechanism and is conveyed to the bundling mechanism through it; The bundling mechanism includes a bundling manipulator, a bundling machine, and a detection camera. The bundling machine and the detection camera are both connected to one end of the bundling manipulator. The other end of the bundling manipulator is connected to the lower part of the moving platform. The detection camera locates and detects the position of the point to be bundled and feeds it back to the bundling manipulator. The bundling manipulator drives the bundling machine to bundle the point to be bundled; Inductive electrodes are provided on the steel bar bundling platform, the wire feeding mechanism, and the bundling machine. The inductive electrodes are connected to the operation control module; A positive contact of the inductive electrode is provided on one side of the wire feeding mechanism, a negative contact of the inductive electrode is provided on the steel bar bundling platform, a wire breakage inductive electrode is provided on the other side of the wire feeding mechanism, and a wire cutting inductive electrode is provided on the bundling machine; The intelligent steel bar net bundling method includes the following steps: S1. Build a steel bar framework on the steel bar bundling platform according to the infrastructure drawing, drive the platform conveying roller to send the steel bar platform to the area to be bundled with steel wire, and place it according to the steel bar positioning card slot; S2. Install the steel wire on the steel wire coiling table and convey it to the bundling machine through the driving wheel, the transition wheel, and the wire feeding hose; S3. Judge whether the position of the intersection point of the steel bar net to be bundled and whether the reinforcing bar can meet the bundling condition of the bundling machine. Send the result of whether the current bundling point can be bundled by the bundling machine and the position data of the offset required for the bundling point to the bundling manipulator through data transmission. The bundling manipulator performs accurate positioning and bundling after compensating for the position offset; S4. The bundling manipulator drives the bundling machine to bundle. After completion, a bundling completion signal is output; S5. Judge whether the steel wire feeding condition and the steel wire cutting condition after bundling are normal through the voltage of each section of the inductive electrode. If normal, execute S6. If abnormal, give an early warning; S6. After bundling is completed, through signal feedback, drive the platform conveying roller to convey the steel bar platform out of the steel wire bundling area; In the step S3, judging whether the reinforcing bar can meet the bundling condition of the bundling machine includes: Judge whether the position of the intersection point of the steel bar net meets the range of ±20 mm directly below the V-shaped small bar of the reinforcing bar. If it meets, send the result and the position data of the offset required for the bundling point to the bundling manipulator; If not, set the bundling manipulator to automatically skip without bundling and continue to judge the next point; The step S5 specifically includes: S51. Judging the steel wire feeding condition: The operation control module senses the voltage change of the steel wire breakage inductive electrode on the wire feeding mechanism. If there is a voltage value, perform the next operation. If the voltage value is zero, give an early warning; S52. Judging the wire cutting situation: The operation control module senses the voltage change of the cutting induction electrode on the bundling machine. If there is a voltage value, the next operation is executed. If the voltage value is zero, a warning is issued.

2. The intelligent steel bar mesh bundling machine according to claim 1, wherein, The steel bar bundling platform is provided with a steel bar positioning card slot and platform conveying rollers. The steel bar positioning card slot is arranged at the side end of the steel bar bundling platform to position the placement position of the steel bars, and the platform conveying rollers drive the steel bars to the bundling area.

3. The intelligent steel bar mesh bundling machine according to claim 1, characterized in that, The wire feeding mechanism includes a wire coil table, a transition wheel, a driving wheel for pulling the wire to move, and a wire feeding hose. The wire coil table, the transition wheel, the driving wheel, and the wire feeding hose are arranged on the mounting plate according to the wire path. The whole coil of wire is installed on the wire coil table, and the wire passes through the driving wheel and the transition wheel in sequence and enters the wire feeding hose, and is conveyed to the bundling machine through the wire feeding hose.

4. The intelligent steel bar mesh bundling machine according to claim 1, characterized in that The bundling machine is provided with a manipulator mounting surface and a power signal interface. The bundling machine is fixed on the bundling manipulator through the manipulator mounting surface, and the bundling machine is connected to the operation control module through the power signal interface.

5. The intelligent steel bar mesh bundling machine according to claim 1, wherein, The bundling manipulator is a six-axis manipulator, the detection camera is a CCD vision detection camera. A manipulator bracket is arranged at the end of the bundling manipulator. The bundling machine and the detection camera are both connected to the manipulator bracket. A wire cutting clamp arm is arranged at the front end of the bundling machine, and the lens of the detection camera faces the direction of the wire cutting clamp arm of the bundling machine.

6. The intelligent steel bar mesh bundling machine according to claim 1, wherein, The steel bar bundling platform is provided with a plurality of pad platforms, and the plurality of pad platforms are arranged in the middle of the steel bar bundling platform to bear the middle position of the steel bars.

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