A reinforcing bar tying machine

Abstract

The present application relates to a kind of steel bar binding machine, comprising: mounting bracket, first driving device, second driving device, binding device;First driving device, second driving device are mounted on mounting bracket, and binding device is installed at the bottom of second driving device;Wherein, first driving device is installed in the lower part of mounting bracket, and first driving device is used to drive mounting bracket to move forward, backward, left or right along steel bar, second driving device is installed in the upper part of mounting bracket, and second driving device is used to drive binding device to move forward, backward, left or right, solve the problem of low efficiency and poor flexibility of existing steel bar binding equipment;Wherein, the mounting bracket includes upper frame, lower frame and multiple columns, and the upper frame is connected with the lower frame by column;Mounting bracket uses double-layer frame to provide stable structural support for steel bar binding machine, ensure that steel bar binding machine keeps stable when running and binding, can effectively bear the weight of each component and working impact force.

Description

Technical Field

[0001] This invention relates to the field of rebar tying technology, specifically a rebar tying machine. Background Technology

[0002] With the continuous development of construction technology, mechanized construction production methods have become mainstream. Traditional rebar tying methods are inefficient and require significant manpower and financial resources. They also fail to meet the high precision and efficiency demands of modern construction. Furthermore, the rebar tying environment is hazardous, and manual operation easily leads to safety accidents. Existing rebar tying equipment still has some problems in terms of efficiency and precision, such as limited flexibility and complex maintenance. For example, the tying device of a self-propelled rebar tying robot disclosed in CN215443176U can only move up, down, left, and right, but not forward or backward, limiting its flexibility. Therefore, there is a need to develop a more flexible rebar tying machine to improve production efficiency, reduce costs, and minimize the waste of human resources. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a rebar tying machine to solve the problems of low efficiency and poor flexibility of the existing rebar tying equipment in the background art.

[0004] To achieve the above objectives, the present invention provides a rebar tying machine, comprising: a mounting frame, a first driving device, a second driving device, and a tying device; Both the first drive unit and the second drive unit are mounted on the mounting frame, and the strapping device is installed at the bottom of the second drive unit. The first drive device is installed at the lower part of the mounting frame and is used to drive the mounting frame to move forward, backward, left or right along the reinforcing bars; the second drive device is installed at the upper part of the mounting frame and is used to drive the binding device to move forward, backward, left or right, thus solving the problems of low efficiency and poor flexibility of existing reinforcing bar binding equipment. The mounting frame includes an upper frame, a lower frame, and multiple columns, with the upper and lower frames connected by the columns. The double-layered frame provides a stable structural support for the rebar tying machine, ensuring its stability during operation and tying, and effectively bearing the weight of each component and the impact force of the work. This design ensures the long-term stable operation of the rebar tying machine, making it reliable even in high-intensity construction environments, extending the service life of the equipment, providing a reliable working foundation for other components, and ensuring efficient overall operation.

[0005] The first drive unit is installed at the bottom of the lower frame, and the second drive unit is installed at the bottom of the upper frame.

[0006] Preferably, the first driving device includes a plurality of first driving components and second driving components; The first drive assembly is installed at the corner of the lower frame and is used to drive the mounting bracket to move forward or backward along the reinforcing bars. The lower frame is rectangular or square in shape and has four corners. The second drive assembly is installed in the middle of the lower frame to move the mounting frame to the left or right along the reinforcing bars.

[0007] Preferably, the first drive assembly includes a first mounting base, a first motor, and a U-shaped pulley; The first mounting base is installed at the bottom of the lower frame, the first motor is installed on the first mounting base, and the U-shaped groove wheel is installed on the first motor; When the first motor rotates forward or reverse, it drives the U-shaped grooved wheel to rotate clockwise or counterclockwise, thereby moving the mounting frame forward or backward along the reinforcing bar. The unique structural design of the U-shaped grooved wheel allows its opening shape to match the contour of the reinforcing bar, enabling the machine to achieve stable longitudinal (i.e., forward and backward) movement.

[0008] Preferably, the second drive assembly includes a second mounting base, a second motor, a rotating shaft, a first pulley, a second pulley, a first cam, a second cam, a belt, and a support rod; The second mounting base and the rotating shaft are both installed at the bottom of the lower frame, with a certain distance between them; The second motor is mounted on the second mounting base, the first pulley is mounted on the output end of the second motor, and the two ends of the shaft are respectively mounted with second pulleys; The first pulley and the second pulley are connected by a belt; The first cam is connected to the first pulley, and the second cam is connected to the second pulley; the first cam and the second cam on the same side are both connected to the support rod located on the same side; When the second motor rotates forward or reverse, it drives the first pulley to rotate clockwise or counterclockwise. The belt meshing with the first pulley drives the second pulley to rotate clockwise or counterclockwise. Simultaneously, the first pulley drives the first cam to rotate clockwise or counterclockwise, and the second pulley drives the second cam to rotate clockwise or counterclockwise. The first and second cams together drive the support rod to move left or right, thereby moving the mounting frame along the rebar to the left or right. This pulley + belt + cam structure uses a support rod to stably support the rebar plane, enabling the rebar binding machine to move precisely in the lateral direction.

[0009] Preferably, the second drive device includes a third drive component and a fourth drive component; The third drive assembly is installed at the bottom of the upper frame, the fourth drive assembly is installed at the bottom of the third drive assembly, and the strapping device is installed at the bottom of the fourth drive assembly. The third drive assembly is used to move the fourth drive assembly and the strapping device to the left or right; The fourth drive component is used to move the binding device forward or backward. The second drive device breaks through the limitations of traditional positioning and can achieve smooth movement in any direction within the plane, flexibly adapting to the positional requirements of different rebar nodes. Without the need for step-by-step movement, it can directly and quickly move the binding head to the target rebar node, improving positioning accuracy and effectively reducing errors.

[0010] Preferably, the strapping device includes a lifting mechanism and a strapping mechanism; The lifting mechanism is installed at the bottom of the fourth drive assembly, and the binding mechanism is installed at the bottom of the lifting mechanism. The lifting mechanism is used to adjust the height of the binding mechanism, thereby enabling the binding of steel bars at different heights.

[0011] Preferably, the lifting mechanism includes a first bracket, a base, a lifting frame, and a fifth drive assembly; The first bracket is mounted on the bottom of the fourth drive assembly, the base is mounted on the first bracket, and the base can move up and down along the first bracket; The upper part of the lifting frame is connected to the first support, and the lower part of the lifting frame is connected to the base. The fifth drive assembly is connected to the lifting frame and is used to drive the lifting frame to retract or extend, thereby driving the base to move up and down along the first support.

[0012] The lifting mechanism can adjust the position of the binding mechanism according to the height of the rebar node, adapting to most construction environments. This design reduces the difficulty of operation and enables quick and accurate binding of rebars of different heights, significantly improving binding efficiency while ensuring the consistency and firmness of the binding. This allows the rebar binding machine to work with ease in complex and ever-changing construction sites.

[0013] Preferably, the device also includes a rust removal device, which is mounted on a mounting frame and extends outward from the mounting frame. During the binding process, the rust removal device removes rust from the reinforcing bars and applies rust-proof protection. This function extends the service life of the reinforcing bars, improves the durability of the building structure, reduces later maintenance costs, and provides strong support for the long-term stability and safety of the project.

[0014] Preferably, the rust removal device includes a height adjustment mechanism, a first servo motor, a connecting rod, a third motor, and a grinding wheel; The height adjustment mechanism is installed on at least one of the columns, the first servo motor is installed at the bottom of the height adjustment mechanism, one end of the connecting rod is connected to the output end of the first servo motor, the other end of the connecting rod is equipped with a third motor, and a grinding wheel is installed on the output shaft of the third motor.

[0015] Preferably, it also includes a rebar straightening mechanism, which includes a main body, a clamping assembly, a sixth drive assembly, and a seventh drive assembly; The main body is located on one side of the mounting bracket, and the clamping assembly is installed at the bottom of the main body. The sixth drive assembly is mounted on the lower frame and is used to move the main body upwards or downwards. The seventh drive assembly is mounted on the main body and is used to drive the clamping assembly to retract inward or extend outward.

[0016] The rebar straightening mechanism can accurately position and correct the rebars before binding, ensuring that the rebars are in the correct and standardized position before binding. This effectively avoids the problem of insecure binding caused by rebar misalignment, guarantees the binding quality, ensures the stability of the building structure, and provides a key guarantee for the quality of the project.

[0017] Compared with the prior art, the present invention has the following advantages: 1. The mounting frame adopts a double-layer frame to provide a stable structural support for the rebar tying machine, ensuring that the rebar tying machine remains stable during operation and tying, and can effectively bear the weight of each component and the impact force of the work. This design ensures the long-term stable operation of the rebar tying machine, making it reliable even in high-intensity construction environments, extending the service life of the equipment, providing a reliable working foundation for other components, and ensuring the efficient operation of the overall work.

[0018] 2. The unique structural design of the U-shaped groove wheel is adopted, which makes its opening shape match the outline of the steel bar, allowing the machine to achieve stable longitudinal (i.e., forward and backward) movement.

[0019] 3. The second drive device breaks through the limitations of traditional positioning and can move smoothly in any direction within the plane, flexibly adapting to the positional requirements of different rebar nodes. Without the need for step-by-step movement, it can directly and quickly move the binding head to the target rebar node, improving positioning accuracy and effectively reducing errors.

[0020] 4. The lifting mechanism can adjust the position of the binding mechanism according to the height of the rebar node, adapting to most construction environments. This design reduces the difficulty of operation and can quickly and accurately bind rebars of different heights, significantly improving binding efficiency. At the same time, it ensures the consistency and firmness of binding, making the rebar binding machine work with ease in complex and ever-changing construction sites.

[0021] 5. During the binding process, the rust removal device removes rust from the reinforcing bars and applies rust prevention protection. This function extends the service life of the reinforcing bars, improves the durability of the building structure, reduces later maintenance costs, and provides strong support for the long-term stability and safety of the project.

[0022] 6. The rebar straightening mechanism can accurately position and correct the rebars before binding, ensuring that the rebars are in the correct and standardized position before binding. This effectively avoids the problem of insecure binding caused by rebar misalignment, guarantees the binding quality, ensures the stability of the building structure, and provides a key guarantee for the quality of the project.

[0023] 7. The rebar identification device scans the position and status of rebars in real time, and accurately locates rebar nodes through intelligent identification technology, providing reliable visual guidance for the rebar tying machine, ensuring the accuracy of the tying position, greatly improving the autonomous working ability and adaptability of the rebar tying machine, enhancing the rebar tying machine's adaptability to complex environments, and realizing intelligent operation.

[0024] 8. By installing a controller on the mounting frame, the controller can control the operation of various devices, mechanisms, or components, and plan the optimal travel path according to the construction site layout, avoiding repetitive and ineffective movements. Through scientific optimization of the workflow, it can quickly reach the rebar nodes, efficiently complete the binding task of each node, improve machine working efficiency, ensure efficient operation in complex construction sites, and achieve intelligent construction management. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is one of the overall structural schematic diagrams of Embodiment 1 of the present invention; Figure 2 This is a second schematic diagram of the overall structure of Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the structure of the second driving component in Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the structure of the second drive assembly after the belt is removed in Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the structure of the second drive device in Embodiment 1 of the present invention after the fourth motor has been removed; Figure 6 This is one of the structural schematic diagrams of the second driving device and the binding device in Embodiment 1 of the present invention; Figure 7 This is a second schematic diagram of the structure of the second driving device and the binding device in Embodiment 1 of the present invention; Figure 8 This is a schematic diagram of the binding device according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the rust removal device according to Embodiment 1 of the present invention; Figure 10 This is one of the structural schematic diagrams of the rebar straightening mechanism, lower frame, and first drive assembly according to Embodiment 1 of the present invention; Figure 11 This is the second structural schematic diagram of the rebar straightening mechanism, lower frame, and first drive assembly according to Embodiment 1 of the present invention; Figure 12 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention; Figure 13 This is a schematic diagram of the overall structure of Embodiment 3 of the present invention; In the diagram: Mounting bracket 1, upper frame 11, lower frame 12, column 13, first drive device 2, first drive assembly 21, first mounting base 211, first motor 212, U-shaped pulley 213, second drive assembly 22, second mounting base 221, second motor 222, rotating shaft 223, first pulley 224, second pulley 225, first cam 226, second cam 227, belt 228, support rod 229, second drive device 3, third drive assembly 31, third mounting base 311, fourth mounting base 312, fifth mounting base 313, first guide rail 314, second guide rail 315, fourth motor 316 317, 318, 319, 320, 320, 321, 322, 323, 324, 325, 326, 327, 328, 328, 4, 4, 41, 4111, 4112, 412, 413, 4131, 4132, 4133, 4134, 4135, 4136, 4137, 4138, 4139, 4130 ...1, 4132, 4133, 4134, 4135, 4136, 4137, 4138, 4139, 136. Fifth drive assembly 414, Seventh motor 4141, Limiting rod 4142, Third lead screw 4143, First coupling 4144, Binding mechanism 42, Housing 421, Material box 422, Eighth drive assembly 423, Feeding assembly 424, Feeding body 4241, Inlet guide groove 4242, Inlet guide groove 4243, Cutting assembly 425, Cutting body 4251, Eleventh motor 4252, Fifth gear 4253, Rotating assembly 4254, Guide groove 426, Protective wing 427, Rust removal device 5, Height adjustment mechanism 51, First servo motor 52, Connecting rod 53, Third motor 54, Grinding wheel 55 6. Rebar straightening mechanism; 61. Main body; 611. Third hole; 612. Fourth hole; 62. Clamping assembly; 621. First clamping member; 622. Second clamping member; 63. Sixth drive assembly; 631. Eleventh mounting base; 632. Eighth motor; 633. First transmission component; 634. Second transmission component; 635. Third transmission component; 636. Limiting component; 64. Seventh drive assembly; 641. Twelfth mounting base; 642. Ninth motor; 643. Second gear; 644. Second rack; 645. Third rack; 8. Rebar identification device; 81. Camera; 82. Sensor; 7. Rust prevention spraying device; 71. Third bracket; 72. Storage tank; 73. Sprayer. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] Example 1: As Figure 1-11 As shown, the present invention proposes a rebar tying machine, comprising: a mounting frame 1, a first driving device 2, a second driving device 3, and a tying device 4; The first drive unit 2 and the second drive unit 3 are both mounted on the mounting frame 1, and the binding device 4 is mounted on the bottom of the second drive unit 3; The first driving device 2 is installed at the lower part of the mounting frame 1, and the first driving device 2 is used to drive the mounting frame 1 to move forward, backward, left or right along the reinforcing bar; the second driving device 3 is installed at the upper part of the mounting frame 1, and the second driving device 3 is used to drive the binding device 4 to move forward, backward, left or right. The mounting frame 1 includes an upper frame 11, a lower frame 12, and multiple columns 13. The upper frame 11 and the lower frame 12 are connected by the columns 13. The double-layer frame of the mounting frame provides a stable structural support for the rebar tying machine, ensuring that the rebar tying machine remains stable during operation and tying, and can effectively bear the weight of each component and the impact force of the work. This design ensures the long-term stable operation of the rebar tying machine, making it reliable even in high-intensity construction environments, extending the service life of the equipment, providing a reliable working foundation for other components, and ensuring the efficient operation of the overall work.

[0029] The first drive unit 2 is installed at the bottom of the lower frame 12, and the second drive unit 3 is installed at the bottom of the upper frame 11.

[0030] like Figure 1 As shown, the first driving device 2 includes a plurality of first driving components 21 and second driving components 22. The first drive assembly 21 is installed at the corner of the lower frame 12. The first drive assembly 21 is used to drive the mounting frame 1 to move forward or backward along the reinforcing bars. The second drive assembly 22 is installed in the middle of the lower frame 12 to drive the mounting frame 1 to move left or right along the reinforcing bars.

[0031] like Figure 1-2As shown, the first drive assembly 21 includes a first mounting base 211, a first motor 212, and a U-shaped pulley 213; The first mounting base 211 is installed at the bottom of the lower frame 12, the first motor 212 is installed on the first mounting base 211, and the U-shaped groove wheel 213 is installed on the first motor 212; When the first motor 212 rotates forward or reverse, it drives the U-shaped grooved wheel 213 to rotate clockwise or counterclockwise, thereby moving the mounting frame 1 forward or backward along the reinforcing bar. The unique structural design of the U-shaped grooved wheel allows its opening shape to match the outline of the reinforcing bar, enabling the machine to achieve stable longitudinal (forward and backward) movement.

[0032] like Figure 3-4 As shown, the second drive assembly 22 includes a second mounting base 221, a second motor 222, a rotating shaft 223, a first pulley 224, a second pulley 225, a first cam 226, a second cam 227, a belt 228, and a support rod 229; The second mounting base 221 and the rotating shaft 223 are both installed at the bottom of the lower frame 12, with a certain distance between the second mounting base 221 and the rotating shaft 223; The second motor 222 is mounted on the second mounting base 221, the first pulley 224 is mounted on the output end of the second motor 222, and the two ends of the rotating shaft 223 are respectively mounted with second pulleys 225; The first pulley 224 and the second pulley 225 are connected by a belt 228; The first cam 226 is connected to the first pulley 224, and the second cam 227 is connected to the second pulley 225; the first cam 226 and the second cam 227 on the same side are both connected to the support rod 229 located on the same side; When the second motor 222 rotates forward or reverse, it drives the first pulley 224 to rotate clockwise or counterclockwise. The belt 228, which meshes with the first pulley 224, drives the second pulley 225 to rotate clockwise or counterclockwise. Simultaneously, the first pulley 224 drives the first cam 226 to rotate clockwise or counterclockwise, and the second pulley 225 drives the second cam 227 to rotate clockwise or counterclockwise. The first cam 226 and the second cam 227 together drive the support rod 229 to move left or right, thereby moving the mounting frame 1 along the reinforcing bar to the left or right. The pulley + belt + cam structure drives the support rod to stably support the plane of the reinforcing bar, enabling the reinforcing bar binding machine to achieve precise translation in the lateral direction.

[0033] like Figure 1 As shown, the second drive device 3 includes a third drive component 31 and a fourth drive component 32; The third drive assembly 31 is installed at the bottom of the upper frame 11, the fourth drive assembly 32 is installed at the bottom of the third drive assembly 31, and the strapping device 4 is installed at the bottom of the fourth drive assembly 32. The third drive assembly 31 is used to drive the fourth drive assembly 32 and the strapping device 4 to move to the left or right; The fourth drive component 32 is used to drive the binding device 4 to move forward or backward. The second drive device breaks through the limitations of traditional positioning and can achieve smooth movement in any direction in the plane, flexibly adapting to the position requirements of different rebar nodes. It can directly and quickly move the binding head to the target rebar node without step-by-step movement, improving positioning accuracy and effectively reducing errors.

[0034] like Figure 5-7 As shown, the third drive assembly 31 includes a third mounting base 311, a fourth mounting base 312, a fifth mounting base 313, a first guide rail 314, a second guide rail 315, a fourth motor 316, a first lead screw 317, and a first nut 318. The third mounting base 311, the fourth mounting base 312 and the fifth mounting base 313 are all installed at the bottom of the upper frame 11. The fifth mounting base 313 is located between the third mounting base 311 and the fourth mounting base 312. The third mounting base 311, the fourth mounting base 312 and the fifth mounting base 313 are all spaced a certain distance from each other. The first guide rail 314 is mounted on the third mounting base 311, the second guide rail 315 is mounted on the fourth mounting base 312, and the first lead screw 317 is mounted on the fifth mounting base 313. The first guide rail 314, the second guide rail 315 and the first lead screw 317 are parallel to each other and are spaced a certain distance apart. The fourth motor 316 is mounted on the upper frame 11. The fourth motor 316 is located at one end of the first lead screw 317, and the output end of the fourth motor 316 is connected to one end of the first lead screw 317. In this embodiment, a second bracket 319 is provided on one side of the upper frame 11, and a fourth motor 316 is installed at the bottom of the second bracket 319; a motor controller 320 is provided on the second bracket 319, which is used to adjust the fourth motor 316 to rotate forward or backward, and the motor controller 320 is a manual control switch.

[0035] The first nut 318 is installed on the first lead screw 317; When the fourth motor 316 rotates forward or reverse, it drives the first lead screw 317 to rotate clockwise or counterclockwise, thereby causing the first nut 318 installed on the first lead screw 317 to move left or right along the first lead screw 317.

[0036] like Figure 4As shown, the fourth drive assembly 32 includes a sixth mounting base 321, a seventh mounting base 322, an eighth mounting base 323, a third guide rail 324, a fourth guide rail 325, a fifth motor 326, a second lead screw 327, and a second nut 328; The sixth mounting base 321 is slidably connected to the first guide rail 314 and the second guide rail 315, and the sixth mounting base 321 is connected to the first nut 318. The seventh mounting base 322 and the eighth mounting base 323 are both mounted on the sixth mounting base 321, and the seventh mounting base 322 and the eighth mounting base 323 are spaced apart from each other by a certain distance; The third guide rail 324 is mounted on the seventh mounting base 322, and the fourth guide rail 325 is mounted on the eighth mounting base 323. The third guide rail 324 and the fourth guide rail 325 are parallel to each other and are spaced a certain distance apart. The fifth motor 326 and the second lead screw 327 are mounted on the sixth mounting base 321. The fifth motor 326 is located at one end of the sixth mounting base 321. The output end of the fifth motor 326 is connected to one end of the second lead screw 327. The second lead screw 327 is located between the third guide rail 324 and the fourth guide rail 325. The second lead screw 327 is parallel to the third guide rail 324 and the fourth guide rail 325 and is spaced a certain distance apart from each other. The second nut 328 is installed on the second lead screw 327; The binding device 4 is installed on the third guide rail 324 and the fourth guide rail 325, and the binding device 4 is connected to the second nut 328. When the fifth motor 326 rotates forward or backward, it drives the second lead screw 327 to rotate clockwise or counterclockwise, thereby driving the second nut 328 installed on the second lead screw 327 and the binding device 4 connected to the second nut 328 to move forward or backward along the second lead screw 327.

[0037] like Figure 1 As shown, the strapping device 4 includes a lifting mechanism 41 and a strapping mechanism 42; The lifting mechanism 41 is installed at the bottom of the fourth drive assembly 32, and the binding mechanism 42 is installed at the bottom of the lifting mechanism 41. The lifting mechanism 41 is used to adjust the height of the binding mechanism 42, thereby enabling the binding of steel bars at different heights.

[0038] like Figure 6-7 As shown, the lifting mechanism 41 includes a first bracket 411, a base 412, a lifting frame 413, and a fifth drive assembly 414; The first bracket 411 is installed at the bottom of the fourth drive assembly 32, the base 412 is installed on the first bracket 411, and the base 412 can move up and down along the first bracket 411. The upper part of the lifting frame 413 is connected to the first support 411, and the lower part of the lifting frame 413 is connected to the base 412. The fifth drive assembly 414 is connected to the lifting frame 413. The fifth drive assembly 414 is used to drive the lifting frame 413 to retract or extend, thereby driving the base 412 to move up and down along the first support 411.

[0039] The lifting mechanism can adjust the position of the binding mechanism 42 according to the height of the rebar node, adapting to most construction environments. This design reduces the difficulty of operation and can quickly and accurately bind rebars of different heights, significantly improving binding efficiency while ensuring the consistency and firmness of binding, making the rebar binding machine work with ease in complex and ever-changing construction sites.

[0040] The side of the first bracket 411 is provided with two first holes 4111 and one second hole 4112; Both the first hole 4111 and the second hole 4112 are strip-shaped holes. Both the first hole 4111 and the second hole 4112 extend from the upper part of the first bracket 411 to the lower part of the first bracket 411. The two first holes 4111 are parallel and spaced apart, and the second hole 4112 is located in the middle of the two first holes 4111. The fifth drive assembly 414 includes a seventh motor 4141, a limit rod 4142, a third lead screw 4143, and a first coupling 4144; The seventh motor 4141 is installed at one end of the limiting rod 4142, and the other end of the limiting rod 4142 passes through the first hole 4111 and extends toward the lifting frame 413. One end of the third lead screw 4143 is connected to the output end of the seventh motor 4141 via the first coupling 4144, and the other end of the third lead screw 4143 is connected to the lifting frame 413.

[0041] The lifting frame 413 includes a fifth guide rail 4131, a sixth guide rail 4132, a seventh guide rail 4133, an eighth guide rail 4134, a first folding frame 4135, and a second folding frame 4136. The fifth guide rail 4131 and the sixth guide rail 4132 are mounted on the base 412. The fifth guide rail 4131 and the sixth guide rail 4132 are arranged in parallel, with a certain distance between them. The seventh guide rail 4133 and the eighth guide rail 4134 are installed on the upper part of the first bracket 411. The seventh guide rail 4133 and the eighth guide rail 4134 are arranged in parallel and are spaced a certain distance apart. The first folding frame 4135 includes two sets of first connectors, each set of first connectors including two first rods, the two first rods being hinged in the middle; The lower part of one set of first connectors is connected to the fifth guide rail 4131, and the upper part is connected to the lower part of another set of first connectors; The upper part of the other set of first connectors is connected to the seventh guide rail 4133; The second folding frame 4136 includes two sets of second connectors, each set of second connectors including two second rods, the two second rods being hinged in the middle; The lower part of one set of second connectors is connected to the sixth guide rail 4132, and the upper part is connected to the lower part of another set of second connectors; The upper part of the other set of second connectors is connected to the eighth guide rail 4134; A third connector is provided between the first connector and the second connector. One end of the third connector is hinged to the first connector, the other end of the third connector is hinged to the second connector, and the middle part of the third connector is connected to the third lead screw 4143.

[0042] like Figure 8 As shown, the strapping mechanism 42 includes a housing 421, a material box 422, an eighth drive assembly 423, a feeding assembly 424, a cutting assembly 425, a guide groove 426, and a protective wing 427. The material box 422 is installed on one side of the housing 421. The material box 422 is used to store materials for binding steel bars, such as steel wire, iron wire, copper wire, etc. The eighth drive assembly 423, the feeding assembly 424, and the cutting assembly 425 are all installed inside the housing 421; The eighth drive assembly 423 is located in the upper region of the housing 421 and is mounted on the bottom of the base 412; the eighth drive assembly 423 is used to adjust the angle of the binding mechanism 42 to adapt to different steel bar arrangements. The feeding assembly 424 is located below the eighth drive assembly 423. The feeding assembly 424 is used to extract the material for binding the steel bars from the material box 422 and convey it to the guide groove 426 and the guard wing 427. The cutting component 425 is located below the feeding component 424. The cutting component 425 is used to drive the material for binding the steel bars to wrap around and twist and tighten, while cutting off the excess material for binding the steel bars to complete the binding of the steel bar binding points. The guide groove 426 is installed at the bottom of the housing 421 and is used to guide the material for binding the reinforcing bars to surround the reinforcing bars. The guard 427 is installed at the lower part of the cutting assembly 425. When the material for binding the reinforcing bars is initially wrapped, the guard 427 prevents the material for binding the reinforcing bars from rushing out of the guide groove due to excessive speed, so that the material for binding the reinforcing bars is accurately transported to the binding point.

[0043] like Figure 8As shown, in this embodiment, the eighth drive component 423 includes a second servo and a turntable. The second servo is connected to the turntable, and the turntable is installed at the bottom of the base 412.

[0044] like Figure 8 As shown, in this embodiment, the feeding assembly 424 includes a feeding body 4241. The feeding body 4241 is provided with an inlet guide groove 4242 and an inlet guide groove 4243. The inlet guide groove 4242 is located in the upper region of the feeding body 4241, and the inlet guide groove 4243 is located below the inlet guide groove 4242. A tenth motor and a third gear are provided at the lower part of the feeding body 4241. The tenth motor is installed on the feeding body 4241, and the third gear is installed at the output end of the tenth motor. The third gear is provided with an annular groove and is used to convey the material for binding steel bars.

[0045] like Figure 8 As shown, in this embodiment, the cutting assembly 425 includes a cutting body 4251, an eleventh motor 4252, a fourth gear, a fifth gear 4253, and a rotating assembly 4254. The cutting body 4251 is installed at the bottom of the feeding body 4241, the eleventh motor 4252 is installed on the cutting body 4251, the fourth gear is installed at the output end of the eleventh motor 4252, the fifth gear 4253 meshes with the fourth gear, the rotating assembly 4254 is connected to the fifth gear 4253, and a cutting tool is installed on the rotating assembly 4254.

[0046] When the tenth motor rotates, the third gear drives the material for binding the reinforcing bars to extend from the material box 422, and accurately convey it to the positions of the guide groove 426 and the guard 427 through the inlet guard groove 4242 and the inlet guide groove 4243; when the eleventh motor 4252 rotates, the eleventh motor 4252 drives the fourth gear to rotate, the fourth gear drives the fifth gear 4253 to rotate, and the fifth gear 4253 drives the rotating component 4254 to rotate, thereby causing the material for binding the reinforcing bars to wrap around and twist and tighten, while cutting off the excess material for binding the reinforcing bars. The device first completes the binding of the first rebar tie point. Then, it moves forward to the next rebar tie point, rotating the eighth drive component 423 to adjust the angle of the binding mechanism 42 so that it forms a 90° angle with the previous rebar tie point. The eleventh motor 4252 starts again, driving the material binding the rebar to wrap around and twist to secure it. At the same time, excess material binding the rebar is cut off, completing the binding of the second rebar tie point. This rebar tie point forms an "eight"-shaped binding structure with the previous tie point. This process is repeated to complete the "eight"-shaped binding of all nodes. The "eight"-shaped binding of rebar is more secure and reliable than traditional binding methods. The binding mechanism 42, through mechanical transmission and electrical control, realizes the automated process of steel wire feeding, winding, twisting, and cutting, efficiently completing the "eight"-shaped binding and fixing of rebar nodes.

[0047] like Figure 1-2As shown, it also includes a rust removal device 5, which is mounted on the mounting frame 1 and extends outward from the mounting frame 1. During the binding process, the rust removal device removes rust from the reinforcing bars and applies rust prevention protection. This function extends the service life of the reinforcing bars, improves the durability of the building structure, reduces later maintenance costs, and provides strong support for the long-term stability and safety of the project.

[0048] like Figure 9 As shown, the rust removal device 5 includes a height adjustment mechanism 51, a first servo motor 52, a connecting rod 53, a third motor 54, and a grinding wheel 55. The height adjustment mechanism 51 is installed on at least one of the columns 13, the first servo motor 52 is installed at the bottom of the height adjustment mechanism 51, one end of the connecting rod 53 is connected to the output end of the first servo motor 52, the other end of the connecting rod 53 is equipped with the third motor 54, and the grinding wheel 55 is installed on the output shaft of the third motor 54.

[0049] The height adjustment mechanism 51 includes a slide rod 511, a ninth mounting base 512, a tenth mounting base 513, a sixth motor 514, and a first gear 515. The slide rod 511 is sleeved on one of the columns 13, and at least one side of the slide rod 511 has an opening. At least one side of the slide rod 511 has multiple protrusions forming a rack. The ninth mounting base 512 is mounted on the column 13 and is located inside the opening of the slide rod 511. The tenth mounting base 513 is mounted on the ninth mounting base 512. The sixth motor 514 is mounted on the tenth mounting base 513. The first gear 515 is mounted on the output shaft of the sixth motor 514 and meshes with the rack. When the sixth motor 514 rotates clockwise or counterclockwise, the sixth motor 514 drives the first gear 515 to rotate clockwise or counterclockwise. The first gear 515 drives the rack to move up or down, thereby driving the grinding wheel 55 to move up or down, thus adjusting the height of the grinding wheel 55.

[0050] like Figure 1 As shown, it also includes a rebar straightening mechanism 6, which includes a main body 61, a clamping component 62, a sixth drive component 63, and a seventh drive component 64. The main body 61 is disposed on one side of the mounting frame 1, the clamping component 62 is installed at the bottom of the main body 61, the sixth drive component 63 is installed on the lower frame 12, and the sixth drive component 63 is used to drive the main body 61 to move upward or downward. The seventh drive component 64 is installed on the main body 61, and the seventh drive component 64 is used to drive the clamping component 62 to retract inward or extend outward.

[0051] The rebar straightening mechanism can accurately position and correct the rebars before binding, ensuring that the rebars are in the correct and standardized position before binding. This effectively avoids the problem of insecure binding caused by rebar misalignment, guarantees the binding quality, ensures the stability of the building structure, and provides a key guarantee for the quality of the project.

[0052] like Figure 10-11 As shown, the upper part of the main body 61 is provided with a third hole 611, and the lower part of the main body 61 is provided with a fourth hole 612. Both the third hole 611 and the fourth hole 612 are horizontal strip holes. The clamping assembly 62 includes a first clamping member 621 and a second clamping member 622. At least a portion of the first clamping member 621 is installed in a fourth hole 612, and at least a portion of the second clamping member 622 is installed in a third hole 611. The first clamping member 621 is capable of sliding laterally in the fourth hole 612, and the second clamping member 622 is capable of sliding laterally in the third hole 611.

[0053] The sixth drive assembly 63 includes an eleventh mounting base 631, an eighth motor 632, a first transmission component 633, a second transmission component 634, a third transmission component 635, and a limiting component 636.

[0054] The eleventh mounting base 631 is mounted on the lower frame 12, and the eighth motor 632 is mounted on the eleventh mounting base 631. The output end of the eighth motor 632 is connected to the center position of the first transmission member 633. One of the positions of the first transmission member 633 near the edge is connected to the second transmission member 634. The second transmission member 634 is connected to the third transmission member 635. The third transmission member 635 is connected to the main body 61.

[0055] The limiting member 636 is installed on the lower frame 12. The limiting member 636 has a fifth hole, and the third transmission member 635 passes through the fifth hole. The limiting member 636 is used to limit the position of the third transmission member 635 and prevent the third transmission member 635 from swinging left and right.

[0056] The eighth motor 632, the first transmission component 633, the second transmission component 634, and the third transmission component 635 form a crank-rocker mechanism. When the eighth motor 632 rotates forward or in reverse, the eighth motor 632 drives the first transmission component 633 to rotate. The edge of the first transmission component 633 drives the second transmission component 634 to move up and down or swing. The second transmission component 634 drives the third transmission component 635 to move up and down. The third transmission component 635 drives the main body 61 to move up and down, thereby realizing the up and down movement of the rebar straightening mechanism 6.

[0057] The seventh drive assembly 64 includes a twelfth mounting base 641, a ninth motor 642, a second gear 643, a second rack 644, and a third rack 645. The twelfth mounting base 641 is mounted on the main body 61, the ninth motor 642 is mounted on the twelfth mounting base 641, the second gear 643 is mounted on the output end of the ninth motor 642, and the second rack 644 and the third rack 645 mesh with the second gear 643 respectively.

[0058] At least a portion of the second rack 644 is installed in the fourth hole 612, the second rack 644 is able to slide laterally in the fourth hole 612, and the second rack 644 is connected to the first clamping member 621.

[0059] At least a portion of the third rack 645 is installed in the third hole 611, the third rack 645 is able to slide laterally in the third hole 611, and the third rack 645 is connected to the second clamping member 622.

[0060] When the ninth motor 642 rotates clockwise, it drives the second gear 643 to rotate clockwise. The second gear 643 drives the second rack 644 to move to the left, and the second rack 644 drives the first clamping member 621 to move to the left. At the same time, the second gear 643 drives the third rack 645 to move to the right, and the third rack 645 drives the second clamping member 622 to move to the right, thereby releasing the clamped steel bar.

[0061] When the ninth motor 642 rotates counterclockwise, it drives the second gear 643 to rotate counterclockwise. The second gear 643 drives the second rack 644 to move to the right, and the second rack 644 drives the first clamping member 621 to move to the right. At the same time, the second gear 643 drives the third rack 645 to move to the left, and the third rack 645 drives the second clamping member 622 to move to the left, thereby clamping the steel bar and straightening it.

[0062] The working principle of this embodiment: When the first motor 212 rotates forward or backward, it drives the U-shaped groove wheel 213 to rotate clockwise or counterclockwise, thereby driving the mounting frame 1 to move forward or backward along the reinforcing bar.

[0063] When the second motor 222 rotates forward or reverse, it drives the first pulley 224 to rotate clockwise or counterclockwise. The belt 228, which meshes with the first pulley 224, drives the second pulley 225 to rotate clockwise or counterclockwise. At the same time, the first pulley 224 drives the first cam 226 to rotate clockwise or counterclockwise, and the second pulley 225 drives the second cam 227 to rotate clockwise or counterclockwise. The first cam 226 and the second cam 227 together drive the support rod 229 to move to the left or right, thereby moving the mounting frame 1 to the left or right along the reinforcing bar.

[0064] When the fourth motor 316 rotates forward or reverse, it drives the first lead screw 317 to rotate clockwise or counterclockwise, thereby driving the first nut 318 and the binding device 4 installed on the first lead screw 317 to move left or right along the first lead screw 317.

[0065] When the fifth motor 326 rotates forward or backward, it drives the second lead screw 327 to rotate clockwise or counterclockwise, thereby driving the second nut 328 installed on the second lead screw 327 and the binding device 4 connected to the second nut 328 to move forward or backward along the second lead screw 327.

[0066] When the sixth motor 514 rotates forward or reverse, the sixth motor 514 drives the first gear 515 to rotate clockwise or counterclockwise. The first gear 515 drives the rack to move up or down, thereby driving the grinding wheel 55 to move up or down, thus adjusting the height of the grinding wheel 55.

[0067] When the eighth motor 632 rotates clockwise or counterclockwise, it drives the first transmission component 633 to rotate. The edge of the first transmission component 633 drives the second transmission component 634 to move up and down or swing. The second transmission component 634 drives the third transmission component 635 to move up and down. The third transmission component 635 drives the main body 61 to move up and down, thereby realizing the up and down movement of the rebar straightening mechanism 6. When the ninth motor 642 rotates clockwise, it drives the second gear 643 to rotate clockwise. The second gear 643 drives the second rack 644 to move to the left. The second rack 644 drives the first clamping component 621 to move to the left. At the same time, the second gear 643 drives the third rack 645 to move to the right. The third rack 645 drives the second clamping component 622 to move to the right, thereby releasing the clamped rebar. When the ninth motor 642 rotates counterclockwise, it drives the second gear 643 to rotate counterclockwise. The second gear 643 drives the second rack 644 to move to the right, and the second rack 644 drives the first clamping member 621 to move to the right. At the same time, the second gear 643 drives the third rack 645 to move to the left, and the third rack 645 drives the second clamping member 622 to move to the left, thereby clamping the steel bar and straightening it.

[0068] When the tenth motor rotates, the third gear drives the material for binding the reinforcing bars to extend from the material box 422, and accurately convey it to the positions of the guide groove 426 and the guard 427 through the inlet guard groove 4242 and the inlet guide groove 4243; when the eleventh motor 4252 rotates, the eleventh motor 4252 drives the fourth gear to rotate, the fourth gear drives the fifth gear 4253 to rotate, and the fifth gear 4253 drives the rotating component 4254 to rotate, thereby causing the material for binding the reinforcing bars to wrap around and twist and tighten, while cutting off the excess material for binding the reinforcing bars. The device first completes the binding of the first rebar tie point. Then, it moves forward to the next rebar tie point, rotating the eighth drive component 423 to adjust the angle of the binding mechanism 42 so that it forms a 90° angle with the previous rebar tie point. The eleventh motor 4252 starts again, driving the material binding the rebar to wrap around and twist to secure it. At the same time, excess material binding the rebar is cut off, completing the binding of the second rebar tie point. This rebar tie point forms an "eight"-shaped binding structure with the previous tie point. This process is repeated to complete the "eight"-shaped binding of all nodes. The "eight"-shaped binding of rebar is more secure and reliable than traditional binding methods. The binding mechanism 42, through mechanical transmission and electrical control, realizes the automated process of steel wire feeding, winding, twisting, and cutting, efficiently completing the "eight"-shaped binding and fixing of rebar nodes.

[0069] Example 2, as Figure 12 As shown, the technical solution and working principle of Embodiment 1 differ from this embodiment in that: The rebar tying machine also includes a rebar identification device 8, which is mounted on the mounting frame 1. The rebar identification device is used to identify and accurately capture rebar nodes. The rebar identification device includes a camera 81 and a sensor 82. The camera 81 is mounted on the binding mechanism 42, and the sensor 82 is mounted on the mounting frame 1. The camera 81 is used to identify and accurately capture rebar nodes, and the sensor 82 is used to identify rebar.

[0070] The rebar identification device scans the position and status of rebars in real time, accurately locates rebar nodes through intelligent identification technology, provides reliable visual guidance for the rebar tying machine, ensures the accuracy of the tying position, greatly improves the autonomous working ability and adaptability of the rebar tying machine, enhances the rebar tying machine's adaptability to complex environments, and realizes intelligent operation.

[0071] Example 3, as Figure 13 As shown, the technical solutions and working principles of Embodiment 1 or Embodiment 2 differ from those of this embodiment in that: The mounting frame 1 is also equipped with four anti-rust spraying devices 7. Each anti-rust spraying device 7 includes a third bracket 71, a storage tank 72, and a sprayer 73. The third bracket 71 is installed in the lower area of ​​one of the columns 13. The storage tank 72 and the sprayer 73 are respectively installed on the third bracket 71, and the storage tank 72 is connected to the sprayer 73. The storage tank 72 is used to store the anti-rust agent. The sprayer 73 is used to spray the anti-rust agent, which can prevent rust on the bundled steel bars and enhance the service life of the steel bars.

[0072] Example 4, based on the technical solutions and working principles of Example 1, Example 2, or Example 3, differs from this example in that: The rebar tying machine also includes a controller, which is mounted on the mounting frame 1; the first drive device 2, the second drive device 3, the tying device 4, the rust removal device 5, the rebar straightening mechanism 6, the rust prevention spraying device 7, the camera 81, and the sensor 82 are respectively connected to the controller.

[0073] The controller is used to control the operation of various devices, mechanisms, or components, and plans the optimal travel path based on the construction site layout to avoid repetitive and ineffective movements. By scientifically optimizing the workflow, it can quickly reach the rebar nodes, efficiently complete the binding task of each node, improve machine working efficiency, ensure efficient operation of complex construction sites, and achieve intelligent construction management.

[0074] In this invention, the "left, right, up, down" orientations / directions involved in the technical solution are... Figure 1 The displayed content serves as a reference benchmark; the location / direction of the rebar straightening mechanism 6 is forward, the location / direction of the rust removal device 5 is right, and the location / direction of the second drive device 3 is upward.

[0075] Furthermore, the terms "upper," "lower," "front," "rear," "left," and "right" used above are for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise specifically stated, the relative steps, numerical expressions, and values ​​of components and steps described in these embodiments do not limit the scope of the invention.

[0076] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present invention should be included in the scope of the claims of the present invention.

[0077] The above-described embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and are not intended to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the scope of the technology disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention.

Claims

1. A rebar tying machine, characterized in that, include: Mounting frame (1), first drive device (2), second drive device (3), and strapping device (4); The first drive unit (2) and the second drive unit (3) are both mounted on the mounting bracket (1), and the binding device (4) is mounted on the bottom of the second drive unit (3); The first drive device (2) is installed on the lower part of the mounting frame (1). The first drive device (2) is used to drive the mounting frame (1) to move forward, backward, left or right along the reinforcing bar; the second drive device (3) is installed on the upper part of the mounting frame (1). The second drive device (3) is used to drive the binding device (4) to move forward, backward, left or right. The mounting frame (1) includes an upper frame (11), a lower frame (12) and multiple columns (13). The upper frame (11) and the lower frame (12) are connected by the columns (13). The first drive device (2) is installed at the bottom of the lower frame (12) and the second drive device (3) is installed at the bottom of the upper frame (11).

2. The rebar tying machine according to claim 1, characterized in that, The first driving device (2) includes a plurality of first driving components (21) and second driving components (22). The first drive assembly (21) is installed at the corner of the lower frame (12). The first drive assembly (21) is used to drive the mounting bracket (1) to move forward or backward along the reinforcing bar. The second drive assembly (22) is installed in the middle of the lower frame (12) to drive the mounting bracket (1) to move to the left or right along the reinforcing bars.

3. A rebar tying machine according to claim 2, characterized in that, The first drive assembly (21) includes a first mounting base (211), a first motor (212), and a U-shaped pulley (213); The first mounting base (211) is installed at the bottom of the lower frame (12), the first motor (212) is installed on the first mounting base (211), and the U-shaped groove wheel (213) is installed on the first motor (212); When the first motor (212) rotates forward or backward, the first motor (212) drives the U-shaped groove wheel (213) to rotate clockwise or counterclockwise, thereby driving the mounting frame (1) to move forward or backward along the reinforcing bar.

4. A rebar tying machine according to claim 2 or 3, characterized in that, The second drive assembly (22) includes a second mounting base (221), a second motor (222), a rotating shaft (223), a first pulley (224), a second pulley (225), a first cam (226), a second cam (227), a belt (228), and a support rod (229). The second mounting base (221) and the rotating shaft (223) are both installed at the bottom of the lower frame (12), and there is a certain distance between the second mounting base (221) and the rotating shaft (223); The second motor (222) is mounted on the second mounting base (221), the first pulley (224) is mounted on the output end of the second motor (222), and the two ends of the rotating shaft (223) are respectively mounted with second pulleys (225). The first pulley (224) and the second pulley (225) are connected by a belt (228); The first cam (226) is connected to the first pulley (224), and the second cam (227) is connected to the second pulley (225); the first cam (226) and the second cam (227) on the same side are both connected to the support rod (229) located on the same side; When the second motor (222) rotates forward or reverse, the second motor (222) drives the first pulley (224) to rotate clockwise or counterclockwise. The belt (228) meshing with the first pulley (224) drives the second pulley (225) to rotate clockwise or counterclockwise. At the same time, the first pulley (224) drives the first cam (226) to rotate clockwise or counterclockwise, and the second pulley (225) drives the second cam (227) to rotate clockwise or counterclockwise. The first cam (226) and the second cam (227) together drive the support rod (229) to move to the left or right, thereby driving the mounting bracket (1) to move to the left or right along the steel bar.

5. A rebar tying machine according to claim 1, 2, or 3, characterized in that, The second drive device (3) includes a third drive assembly (31) and a fourth drive assembly (32). The third drive assembly (31) is installed at the bottom of the upper frame (11), the fourth drive assembly (32) is installed at the bottom of the third drive assembly (31), and the strapping device (4) is installed at the bottom of the fourth drive assembly (32). The third drive assembly (31) is used to drive the fourth drive assembly (32) and the strapping device (4) to move to the left or right; The fourth drive assembly (32) is used to drive the strapping device (4) to move forward or backward.

6. A rebar tying machine according to claim 1, 2 or 3, characterized in that, The strapping device (4) includes a lifting mechanism (41) and a strapping mechanism (42). The lifting mechanism (41) is installed at the bottom of the fourth drive assembly (32), and the binding mechanism (42) is installed at the bottom of the lifting mechanism (41). The lifting mechanism (41) is used to adjust the height of the binding mechanism (42) so as to bind steel bars of different heights.

7. A rebar tying machine according to claim 6, characterized in that, The lifting mechanism (41) includes a first bracket (411), a base (412), a lifting frame (413), and a fifth drive assembly (414). The first bracket (411) is mounted on the bottom of the fourth drive assembly (32), the base (412) is mounted on the first bracket (411), and the base (412) is able to move up and down along the first bracket (411); The upper part of the lifting frame (413) is connected to the first support (411), and the lower part of the lifting frame (413) is connected to the base (412); The fifth drive assembly (414) is connected to the lifting frame (413). The fifth drive assembly (414) is used to drive the lifting frame (413) to retract or extend, thereby driving the base (412) to move up and down along the first support (411).

8. A rebar tying machine according to claim 1, 2, 3 or 7, characterized in that, It also includes a rust removal device (5), which is mounted on the mounting frame (1) and extends outward from the mounting frame (1).

9. A rebar tying machine according to claim 8, characterized in that, The rust removal device (5) includes a height adjustment mechanism (51), a first servo motor (52), a connecting rod (53), a third motor (54), and a grinding wheel (55); The height adjustment mechanism (51) is installed on at least one of the columns (13), the first servo motor (52) is installed at the bottom of the height adjustment mechanism (51), one end of the connecting rod (53) is connected to the output end of the first servo motor (52), and the other end of the connecting rod (53) is equipped with a third motor (54), and a grinding wheel (55) is installed on the output shaft of the third motor (54).

10. A rebar tying machine according to claim 1, 2, 3, 7 or 9, characterized in that, It also includes a rebar straightening mechanism (6), which includes a main body (61), a clamping assembly (62), a sixth drive assembly (63), and a seventh drive assembly (64). The main body (61) is located on one side of the mounting bracket (1), and the clamping assembly (62) is installed on the bottom of the main body (61). The sixth drive assembly (63) is mounted on the lower frame (12) and is used to drive the main body (61) to move upward or downward. The seventh drive assembly (64) is mounted on the main body (61) and is used to drive the clamping assembly (62) to retract inward or extend outward.

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