An automated steel bar tying machine
By designing a support frame with V-grooves to clamp the rebar nodes, and combining the conveying motor and the binding motor, the rebar conveying, bending and binding operations are integrated, solving the problem that existing binding machines need to bind twice on both sides, improving construction efficiency and binding quality, and reducing operation difficulty and safety risks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 临沂城建建设集团有限公司
- Filing Date
- 2025-07-10
- Publication Date
- 2026-06-23
AI Technical Summary
The existing binding machine adopts a single-sided snap-fit structure, which requires binding twice at each rebar node. It lacks a fast double-sided binding connection function, resulting in low construction efficiency.
An automated rebar tying machine was designed, which uses the V-groove of the support frame to clamp the rebar nodes. Combined with the linkage of the conveying motor and the tying motor, it realizes the integrated operation of rebar conveying, bending and tying. It is equipped with a bending tube and a tying disc to precisely control the bending angle and winding method of the steel wire, and the accurate tying position is ensured by positioning piles and proximity sensors.
It achieves fast and accurate double-wire binding, shortens the binding time of a single node, improves construction efficiency, ensures binding quality, reduces operational difficulty and safety hazards, and allows for flexible equipment movement.
Smart Images

Figure CN224396074U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rebar tying technology, and more specifically, it relates to an automated rebar tying machine. Background Technology
[0002] A rebar tying machine is an automated device used in building construction for tying rebars. Its core function is to replace traditional manual tying with mechanical operation, which greatly improves the efficiency and quality of rebar connection.
[0003] Based on the above, the currently used binding machine adopts a single-sided snap-fit structure to thread the steel wire and then rotates and binds it, which requires binding twice at a rebar node and lacks a connection function for quick double-sided binding. Utility Model Content
[0004] To address the aforementioned technical problems, this utility model provides an automated rebar tying machine. This addresses the issue raised in the background section where existing tying machines use a single-sided snap-fit structure to thread the steel wire and then rotate to tie it, requiring two tyings at a single rebar node and lacking a quick double-sided tying connection function.
[0005] The purpose and effect of this utility model of an automated rebar tying machine are achieved by the following specific technical means:
[0006] An automated rebar tying machine includes an assembly frame, with a handle fixedly mounted on the top of the assembly frame; a support frame fixedly mounted on the bottom of the assembly frame; a tying disc rotatably mounted in the middle of the bottom of the support frame; a tying motor fixedly mounted on the top of the assembly frame, with the shaft end of the tying motor connected to the rotating shaft of the tying disc via gear transmission; a wire wheel frame fixedly mounted on the front end of the top of the assembly frame via bolts to a connecting seat, the main body of the wire wheel frame having a U-shaped structure, a wire coil rotating within the wire wheel frame, the wire coil being divided into two parts by a partition in the middle, and two sets of tying wires wound around the outside of the wire coil.
[0007] Furthermore, the top rear side of the support frame is integrally provided with two sets of forward-turning bent tubes, the two sets of bent tubes are symmetrically inclined, and the front end interval of the two sets of bent tubes is smaller than the rear end interval; a conveyor is fixedly provided at the front end of the bent tube, and the conveyor is fixed inside the upper front of the assembly frame; a power distribution box is provided at the rear side of the assembly frame.
[0008] Furthermore, a gearbox is fixedly installed on the right side of the conveyor, a conveyor motor is fixedly installed on the right side of the gearbox, and four sets of conveyor rollers are rotatably installed on the left side of the gearbox, with the conveyor rollers located inside the conveyor; the conveyor motor and the four sets of conveyor rollers are connected by gear transmission inside the gearbox.
[0009] Furthermore, the steel wire outside the wire reel passes through the conveyor and the bending tube.
[0010] Furthermore, the binding tray has two sets of through slots, which are set at an angle, and the front end distance between the two sets of through slots is greater than the rear end distance between the two sets of through slots; two sets of cutting blades are fixedly installed on both sides above the rear end of the through slots; and a positioning post is fixedly installed at the rear end of the binding tray.
[0011] Furthermore, a proximity sensor is fixedly installed in the middle of the rear side of the support frame, and the positioning stake can contact the proximity sensor.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] This utility model adopts a new working method. The V-groove design of the support frame can quickly clamp the rebar nodes. Combined with the linkage control of the conveying motor and the binding motor, it realizes the integrated operation of rebar conveying, bending and binding. There is no need for frequent manual adjustment of the equipment position, which greatly shortens the binding time of a single node and improves the overall construction efficiency. It can also bind double steel wires at the same time.
[0014] This invention is precise and reliable, ensuring the quality of binding. The mechanical structure of the bending tube and binding disc can accurately control the bending angle and winding method of the steel wire. Combined with the automatic reset function of the positioning stake and proximity sensor, it ensures that each binding point is subjected to uniform force and is accurately positioned, effectively avoiding the risk of steel bar displacement caused by loose binding.
[0015] This invention is convenient and safe, reducing the difficulty of operation. The switch layout outside the handle is ergonomic, allowing for one-handed operation. The built-in battery in the distribution box frees the equipment from cable constraints, enabling flexible movement. Even inexperienced operators can quickly learn to use it, reducing safety hazards and operator fatigue during construction. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0017] Figure 2 This is a schematic diagram of the tilting structure of this utility model.
[0018] Figure 3 This is a schematic diagram of the wire-free structure of this utility model.
[0019] Figure 4 This is a three-dimensional structural diagram of the binding disc of this utility model.
[0020] Figure 5 This is a schematic diagram of the position and structure of the conveyor roller of this utility model.
[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0022] 1. Assembly frame; 101. Handle; 102. Connecting seat; 2. Support frame; 201. Bending pipe; 202. Conveyor; 203. Gearbox; 204. Conveyor motor; 205. Conveyor roller; 3. Binding tray; 301. Through groove; 302. Cutting knife; 303. Positioning stake; 4. Binding motor; 5. Proximity sensor; 6. Wire wheel frame; 601. Wire reel; 7. Distribution box. Detailed Implementation
[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.
[0024] Example 1:
[0025] As attached Figure 1 To be continued Figure 5 As shown:
[0026] This utility model provides an automated rebar tying machine, including an assembly frame 1, a handle 101 fixedly mounted on the top of the assembly frame 1; a support frame 2 fixedly mounted on the bottom of the assembly frame 1; a tying disc 3 rotatably mounted in the middle of the bottom of the support frame 2; a tying motor 4 fixedly mounted on the top of the assembly frame 1, the shaft end of the tying motor 4 being connected to the rotating shaft of the tying disc 3 by a gear transmission; a connecting seat 102 fixedly mounted on the front end of the top of the assembly frame 1, and a wire wheel frame 6 fixedly mounted on the outside by bolts, the main body of the wire wheel frame 6 having a U-shaped structure, a wire coil 601 rotatably mounted in the wire wheel frame 6, the wire coil 601 having a partition in the middle dividing it into two parts, and two sets of tying wires being wound on the outside of the wire coil 601.
[0027] Among them, the top rear side of the support frame 2 is integrally provided with two sets of forward-turning bent tubes 201. The two sets of bent tubes 201 are symmetrically inclined, and the front end interval of the two sets of bent tubes 201 is smaller than the rear end interval. A conveyor 202 is fixedly provided at the front end of the bent tube 201. The conveyor 202 is fixed inside the upper front of the assembly frame 1. A power distribution box 7 is provided at the rear side of the assembly frame 1.
[0028] The conveyor 202 has a gearbox 203 fixedly installed on the right side, a conveyor motor 204 fixedly installed on the right side of the gearbox 203, and four sets of conveyor rollers 205 rotatably installed on the left side of the gearbox 203. The conveyor rollers 205 are located inside the conveyor 202. The conveyor motor 204 and the four sets of conveyor rollers 205 are connected by gear transmission inside the gearbox 203.
[0029] The steel wire outside the wire reel 601 passes through the conveyor 202 and the bending pipe 201.
[0030] The binding plate 3 has two sets of through grooves 301, which are set at an angle. The front end of the two sets of through grooves 301 is larger than the rear end of the two sets of through grooves 301. Two sets of cutting blades 302 are fixedly installed on both sides above the rear end of the through grooves 301. A positioning post 303 is fixedly installed at the rear end of the binding plate 3.
[0031] Among them, a proximity sensor 5 is fixedly installed in the middle of the rear side of the support frame 2, and the positioning pile 303 can contact the proximity sensor 5.
[0032] V-shaped grooves for connecting reinforcing bars are provided on both sides of the support frame 2.
[0033] Equipment installation and positioning: The V-grooves on both sides of the bottom of the support frame 2 are precisely clamped onto the outside of the rebar nodes. The special structure of the V-grooves fits tightly with the rebar to ensure that the equipment is stable and does not shake, providing a stable foundation for subsequent binding operations.
[0034] Rebar conveying and bending: Start the control switch of the conveying motor 204 outside the handle 101, and the motor drives the conveying roller 205 to start rotating; at this time, the conveying roller 205 contacts the rebar sleeved on the wire reel 601, and the rebar is continuously conveyed to the bending tube 201 by friction; the bending tube 201 is designed with a specific bending channel inside, and the rebar will be shaped and bent when passing through, in preparation for subsequent binding;
[0035] Wire threading and binding: The bent wire in the bent tube 201 is output from the lower end, passes through the through groove 301 and the horizontally intersecting steel bars in sequence, and then passes back into the through groove 301 to complete the initial wrapping of the steel bar node; then, the control switch of the binding motor 4 outside the handle 101 is pressed, and the binding motor 4 drives the binding disc 3 to rotate rapidly; during the rotation, the cutter 302 on the binding disc 3 cuts the wire, and at the same time, the through groove 301 drives the bent wire to continuously wrap and bind outside the steel bar node; as binding proceeds, the wire is continuously tightened, and the part that exceeds the through groove 301 will be squeezed and bent, and the bent part is located between the support frame 2 and the binding disc 3; when the binding disc 3 rotates, the unbent wire is used for binding first, and as the wire is gradually tightened, the bent part will be pulled out between the support frame 2 and the binding disc 3, and finally a firm binding is completed;
[0036] Example 2: The binding positioning and reset can be controlled by a program. After one binding is completed, the binding disc 3 continues to rotate. When the positioning post 303 on the binding disc 3 is aligned with the proximity sensor 5, the proximity sensor 5 senses the signal and automatically controls the binding disc 3 to stop rotating, ensuring that the equipment returns to the initial position and is ready for the next binding, thus ensuring the accuracy and consistency of the binding position each time.
[0037] Power and control assurance: A battery is installed in the distribution box 7 to provide stable power support for the conveyor motor 204 and the binding motor 4; at the same time, the control switches of the conveyor motor 204 and the binding motor 4 are located outside the handle 101. When operating, the operator can naturally hold the handle 101 and easily touch the switch, realizing convenient control of the equipment operation, improving work efficiency and operational safety.
[0038] The specific usage and function of this embodiment are as follows:
[0039] In this utility model, when in use, the V-grooves on both sides of the bottom of the support frame 2 are clamped outside the steel bar node, and then the conveying motor 204 is started to drive the conveying roller 205 to rotate. The steel bar is continuously conveyed into the bending tube 201 by the contact of the conveying roller 205 with the steel wire winding wheel 601. The steel wire is bent by the bending tube 201 to shape it.
[0040] The steel wire in the bent pipe 201 is output from the lower end, passes through the through groove 301, passes through the horizontally intersecting steel bars, and returns to the through groove 301 to achieve binding;
[0041] Then, the binding motor 4 is started to drive the binding disc 3 to rotate rapidly. The cutting blade 302 cuts the steel wire, and the bent steel wire is driven through the through groove 301 to bind the steel bar outside the joint. The part of the steel wire that exceeds the through groove 301 is squeezed and bent. The bent part is located between the support frame 2 and the binding disc 3, ensuring that the steel wire is used for binding first during the rotation of the binding disc 3. As the steel wire is tightened, the bent part of the steel wire is pulled out between the support frame 2 and the binding disc 3, and the binding is completed.
[0042] After the binding is completed, the binding disc 3 continues to rotate and automatically stops when the positioning stake 303 is aligned with the proximity sensor 5 to ensure binding again;
[0043] A battery is installed in the distribution box 7 to power the conveyor motor 204 and the binding motor 4. The control switches for the conveyor motor 204 and the binding motor 4 are located outside the handle 101 for easy control.
Claims
1. An automated rebar tying machine, characterized in that, include: An assembly frame (1) is provided with a handle (101) fixedly installed on the top of the assembly frame (1); a support frame (2) is fixedly installed on the bottom of the assembly frame (1); a binding plate (3) is rotatably installed in the middle of the bottom of the support frame (2); a binding motor (4) is fixedly installed on the top of the assembly frame (1), and the shaft end of the binding motor (4) is connected to the shaft of the binding plate (3) by gear transmission; a connecting seat (102) is fixedly installed at the front end of the top of the assembly frame (1), and a wire wheel frame (6) is fixedly installed on the outside by bolts. The main body of the wire wheel frame (6) is a U-shaped structure, and a wire coil (601) is rotatably installed in the wire wheel frame (6). The wire coil (601) is divided into two parts by a partition in the middle, and two sets of binding wires are wound on the outside of the wire coil (601).
2. The automated rebar tying machine as described in claim 1, characterized in that: The support frame (2) has two sets of forward-turning bent tubes (201) integrally arranged on the top rear side. The two sets of bent tubes (201) are symmetrically inclined and the front end interval of the two sets of bent tubes (201) is smaller than the rear end interval. A conveyor (202) is fixedly arranged at the front end of the bent tube (201). The conveyor (202) is fixed inside the upper front of the assembly frame (1). A distribution box (7) is arranged on the rear side of the assembly frame (1).
3. The automated rebar tying machine as described in claim 2, characterized in that: A gearbox (203) is fixedly installed on the right side of the conveyor (202), a conveyor motor (204) is fixedly installed on the right side of the gearbox (203), and four sets of conveyor rollers (205) are rotatably installed on the left side of the gearbox (203). The conveyor rollers (205) are located inside the conveyor (202); the conveyor motor (204) and the four sets of conveyor rollers (205) are connected by gear transmission inside the gearbox (203).
4. The automated rebar tying machine as described in claim 2, characterized in that: The steel wire outside the wire reel (601) passes through the conveyor (202) and the bending tube (201).
5. The automated rebar tying machine as described in claim 1, characterized in that: The binding plate (3) has two sets of through grooves (301) with the two sets of through grooves (301) set at an incline. The front end interval of the two sets of through grooves (301) is greater than the rear end interval of the two sets of through grooves (301). Two sets of cutting blades (302) are fixedly installed on both sides above the rear end of the through grooves (301). A positioning post (303) is fixedly installed at the rear end of the binding plate (3).
6. The automated rebar tying machine as described in claim 5, characterized in that: A proximity sensor (5) is fixedly installed in the middle of the rear side of the support frame (2), and the positioning stake (303) can contact the proximity sensor (5).