Automatic binding and welding integrated device for cement telegraph pole reinforcement cage based on PLC control

Abstract

The invention relates to the technical field of resistance spot welding, in particular to a cement telegraph pole reinforcement cage automatic binding and welding integrated device based on PLC control. The device comprises a working rotating disc rotationally connected with a mounting support, a machining channel allowing the reinforcement cage to horizontally penetrate through is formed in the center of the working rotating disc, a conductive wheel and a pressing assembly are arranged on the same side of the working rotating disc, and the conductive wheel, the pressing assembly and the reinforcement cage form a closed conductive loop. When the diameter of the produced reinforcement cage is small, the axial component force applied to the spiral bar by the cylindrical pressing wheel is guided by the inclined plane of the groove, and forced friction is reduced. When the diameter of a produced reinforcement cage is large and the reset slope of the circular truncated cone pressing wheel presses a spiral bar, the acting direction of force is more deviated to the radial direction, the axial component force is reduced, and therefore the axial friction force is reduced. When the reset slope on the periphery of the round table roll welding wheel is in contact with the spiral rib, an inclined contact line along the conical surface is formed.

Description

Technical Field

[0001] This invention relates to the field of resistance spot welding technology, and more specifically, to an integrated device for automatic binding and welding of steel cages for cement utility poles based on PLC control. Background Technology

[0002] The automatic rebar cage binding and welding integrated device, also known as a roll welding machine, works by passing an electric current through the main bars and spiral bars. The high-resistance intersections instantly generate a large amount of heat, melting the intersections. To spot weld the main bars and reinforcing bars together before the intersections cool and solidify, a welding roller is usually placed downstream of the conductive roller's rotation path to apply radial pressure to the intersections of the main bars and reinforcing bars.

[0003] However, while the conductive wheel and the welding wheel rotate coaxially, the reinforcing cage also moves linearly along its axis (to form spiral reinforcement from the coiled steel wrapped around the main reinforcement). The outer surface of the spiral reinforcement moves axially relative to the outer ring of the welding wheel. This means the welding wheel applies not only a radial pressure to the spiral reinforcement and the main reinforcement, but also a frictional force to the spiral reinforcement in the opposite direction to the horizontal movement of the reinforcing cage. Under this frictional force, the spiral reinforcement shifts from its original molten intersection point (towards the upstream side of its original position). The strength of the bond between the main reinforcement and the spiral reinforcement is determined by the amount of molten metal. The points where both the main reinforcement and the spiral reinforcement are molten can firmly bond them together. However, when the spiral reinforcement shifts, it actually bonds to the unmelted area of ​​the main reinforcement. Since the amount of molten metal at the newly formed intersection is less than before, the bond is not as strong as at the original intersection point.

[0004] In view of this, we propose an integrated automatic binding and welding device for steel reinforcement cages of cement utility poles based on PLC control to improve the shortcomings of existing technologies. Summary of the Invention

[0005] This invention provides an integrated automatic binding and welding device for steel reinforcement cages of cement utility poles based on PLC control. It solves the problem that after the spiral reinforcement is subjected to the horizontal friction force applied by the welding roller, it will shift from the original melting intersection point, resulting in the new intersection point not being firmly bonded.

[0006] To achieve the above objectives, the PLC-controlled integrated automatic binding and welding device for cement pole rebar cages includes a working turntable rotatably connected to the mounting bracket. A processing channel for the rebar cage to pass horizontally is formed at the center of the working turntable. A conductive wheel and a pressing assembly are provided on the same side of the working turntable. The conductive wheel, the pressing assembly, and the rebar cage form a closed conductive circuit. Along the rotation direction of the working turntable, the pressing component is located downstream of the conductive wheel; along the translation direction of the reinforcing cage, the pressing component is located downstream of the conductive wheel. The pressing assembly includes a rotating pressing component. The outer ring of the rotating pressing component is in close contact with the outer periphery of the spiral rib. The rotating pressing component converts part of the axial friction force on the spiral rib into radial pressure by wrapping and contacting it. Alternatively, the outer wall of the rotating pressing component can disperse the local radial pressure on the spiral rib by making line contact with it, so as to prevent the intersection of the spiral rib and the main rib from shifting.

[0007] Based on this, the integrated binding and welding device also includes a pair of spaced positioning molds, with a U-shaped fixing frame fixedly connected to the bottom of the two positioning molds. The U-shaped fixing frame is slidably connected to the mounting bracket along the axial direction.

[0008] The working turntable has a shaft disk fixedly connected to it on the same side as the conductive wheel. The shaft disk rotates with the working turntable to wind the spiral ribs around the main ribs.

[0009] A mounting base is fixedly connected to one side of the mounting bracket. A linear rack is fixedly connected between the two positioning molds inside the U-shaped fixing frame. A second gear meshes with one side of the linear rack. A second motor is provided at the bottom of the second gear to drive its rotation. The body of the second motor is fixedly connected to the mounting base. The output shaft of the second motor is coaxially connected to the second gear.

[0010] With this design, multiple ribbed steel bars are inserted between the positioning molds to form the framework of the main reinforcement. Then, one end of the coiled steel bar wound on the shaft is fixed together with the main reinforcement. Next, the working turntable drives the shaft to rotate, while the main reinforcement only moves axially, that is, it moves horizontally. Thus, the coiled steel bar will be wound around the outside of the main reinforcement to form a spiral reinforcement.

[0011] In another technical solution, a rotating bolt is rotatably connected to the periphery of the conductive wheel. A synchronization plate and a hydraulic rod are provided on the side of the rotating bolt away from the axis of the processing channel. The synchronization plate is fixedly connected to the working turntable, the cylinder of the hydraulic rod is fixedly connected to the synchronization plate, and the piston end of the hydraulic rod is fixedly connected to the rotating bolt, so as to adjust the distance between the conductive wheel and the axis of the processing channel.

[0012] Furthermore, the conductive wheel has a stepped structure, including a small wheel and a large wheel. Along the direction of translation of the reinforcing cage, the small wheel is located upstream of the large wheel, forming a positioning wall for pushing the spiral reinforcement to move in the opposite direction to the reinforcing cage.

[0013] In the above scheme, the small disc presses against the outer edge of the spiral rib, and the time it takes to rotate from one main rib to another is fixed. Therefore, when the positioning wall pushes the spiral rib to arrange the pitch, a spiral rib with a fixed pitch will be obtained.

[0014] Furthermore, the rotating pressing component includes a cylindrical pressing wheel, and the cylindrical pressing wheel has multiple grooves on its outer periphery, the inclination angle of the grooves being equal to the helix angle of the helical ribs.

[0015] The rotating pressing component includes a frustum pressing wheel, which has a large-diameter bottom and a small-diameter bottom. An inclined reset slope is formed between the large-diameter bottom and the small-diameter bottom. Along the direction of translation of the reinforcing cage, the small-diameter bottom is located downstream of the large-diameter bottom.

[0016] In this technical solution, the axial component of the force applied to the spiral rib by the cylindrical pressing wheel is "guided" by the inclined surface of the groove, reducing forced friction. The frustum pressing wheel can make the force direction of the reset slope more radial when pressing the spiral rib, reducing the axial component and thus reducing axial friction.

[0017] Based on the above description, the beneficial effects of the present invention compared with the prior art are as follows: When the diameter of the produced rebar cage is small, the axial component of the force applied to the helical reinforcement by the cylindrical pressing wheel is "guided" by the inclined surface of the groove, reducing forced friction. When the diameter of the produced rebar cage is large, the return slope of the frustum pressing wheel directs the force more radially when pressing the helical reinforcement, reducing the axial component and thus lowering axial friction. When the return slope of the outer circumference of the frustum welding wheel contacts the helical reinforcement, it forms an inclined contact line along the conical surface. With the increased contact area, the radial pressure of the return slope on the helical reinforcement is evenly distributed, reducing local pressure and avoiding "hard friction" caused by pressure concentration.

[0018] When the welding roller presses the spiral reinforcement, it reduces the axial friction force applied to the spiral reinforcement through the above two methods, preventing the spiral reinforcement from being hindered from axially translating along with the main reinforcement. This leads to the melting point of the spiral reinforcement sticking to the unmelted main reinforcement, forming a new, unstable intersection. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a perspective view of the overall structure of the present invention; Figure 2 This is a partial cross-sectional perspective view of the present invention; Figure 3 This is a schematic diagram of the working turntable driving method of the present invention; Figure 4 This is a schematic diagram illustrating the preparation steps of the reinforcing cage according to the present invention. Figure 5 This is a perspective view of the welding process between the conductive wheel and the rotating pressing component of the present invention; Figure 6This is a left view of the welding process between the conductive wheel and the rotating pressing component according to the present invention; Figure 7 One of the top views of the rotating pressing component of the present invention; Figure 8 This is a second top view of the rotating pressing component of the present invention.

[0020] The meanings of the labels in the diagram are as follows: 100. Mounting bracket; 110. Working turntable; 111. Ring rack; 112. First gear; 113. First motor; 120. Positioning mold; 121. U-shaped fixing frame; 122. Linear rack; 123. Second gear; 124. Mounting base; 125. Second motor; 130. Shaft plate; 200. Conductive wheel; 201. Small wheel; 202. Large wheel; 203. Positioning wall; 210. Rotating bolt; 220. Synchronizing plate; 230. Hydraulic rod; 300. Pressing assembly; 310. Rotating pressing component; 311. Groove; 312. Large diameter bottom; 313. Small diameter bottom; 314. Reset slope. Detailed Implementation

[0021] The technical solutions in 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figure 1 and Figure 2 As shown, the linear motion of the reinforcing cage occurs simultaneously with the rotation of the conductive wheel and the welding wheel. The outer surface of the spiral reinforcement bar moves axially relative to the outer ring of the welding wheel, subjecting the outer wall of the spiral reinforcement bar to not only radial pressure but also horizontal friction. This causes the spiral reinforcement bar to shift from its initial melting point, forming a new intersection with the unmelted main reinforcement bar. Due to the lack of molten metal, the main reinforcement bar and the spiral reinforcement bar do not adhere firmly at the new intersection.

[0023] The purpose of this embodiment is to provide an integrated automatic binding and welding device for steel reinforcement cages of cement utility poles based on PLC control, so as to solve the problem that the spiral reinforcement is easily deviated from the original intersection point when the welding wheel is pressing the intersection point of the spiral reinforcement and the main reinforcement. It includes a working turntable 110 rotatably connected to the mounting bracket 100. A processing channel for the steel reinforcement cage to pass through horizontally is formed at the center of the working turntable 110. A conductive wheel 200 and a pressing component 300 are provided on the same side of the working turntable 110. The conductive wheel 200, the pressing component 300 and the steel reinforcement cage form a closed conductive circuit. Along the rotation direction of the working turntable 110, the pressing component 300 is located downstream of the conductive wheel 200. Along the translation direction of the reinforcing cage, the pressing component 300 is located downstream of the conductive wheel 200. After the conductive wheel 200 passes current into the reinforcing cage, according to Joule's law, the intersection of the main reinforcing bars and the spiral reinforcing bars melts into liquid metal due to the generation of a large amount of heat. Since the reinforcing cage moves in a straight line and the conductive wheel 200 and the pressing component 300 rotate, these two motion processes occur simultaneously. Before melting the main reinforcing bars and the spiral reinforcing bars at the intersection, the conductive wheel 200 applies a horizontal frictional force to the surface of the spiral reinforcing bars, winding the coiled steel around the periphery of multiple main reinforcing bars to form spiral reinforcing bars. Under the synchronous control of the PLC, the pitch of the formed spiral reinforcing bars is kept consistent.

[0024] Next, the liquid metal generated after the main rib and spiral rib intersects is melted. To prevent it from flowing randomly during translation, the pressing component 300 located downstream of the conductive wheel 200 applies a radial pressing force along the working turntable 110 to it, so that the intersection of the two sticks together, thereby forming a stable spot weld point.

[0025] The pressing assembly 300 includes a rotating pressing member 310. The outer ring of the rotating pressing member 310 is in close contact with the outer periphery of the spiral rib. The rotating pressing member 310 converts part of the axial friction force on the spiral rib into radial pressure by wrapping and contacting it. Alternatively, the outer wall of the rotating pressing member 310 can disperse the local radial pressure on the spiral rib by making line contact with it, so as to prevent the intersection of the spiral rib and the main rib from shifting.

[0026] The rotating pressing member 310 can be in two shapes. In the first shape, the spiral rib is wrapped by its outer wall, so that most of the pressure of the rotating pressing member 310 on the spiral rib is converted into a positive pressure along the radial direction, thereby reinforcing the intersection of the spiral rib and the main rib. At the same time, it can also reduce the risk of the spiral rib shifting from the original intersection point and forming a new intersection point.

[0027] In the second shape, the original "point contact" with the spiral rib is changed to "line contact". The existing rotating pressing part 310 has a point contact with the spiral rib, that is, only a certain point on the outer periphery of the cylindrical rotating pressing part 310 contacts the surface of the spiral rib. The contact area is small, the local pressure is high, and it is easy to generate additional frictional resistance due to "compressive stress concentration". The principle is similar to the greater resistance when a needle tip pierces an object.

[0028] With the increased contact area, the radial pressure of the rotating pressing part 310 on the spiral rib is evenly distributed, the local pressure is reduced, and the "hard friction" caused by pressure concentration is avoided. Line contact also makes the fit between the rotating pressing part 310 and the spiral rib more stable, reducing the "intermittent friction magnitude change" caused by contact point jump, and further reducing the overall frictional resistance.

[0029] To drive the conductive wheel 200 and the rotating pressing component 310 to perform circular motion around the translational axis of the reinforcing cage, so as to achieve automatic binding and continuous spot welding at the intersection of the main reinforcement and spiral reinforcement. See below. Figure 3 The rotation drive method of the working turntable 110 is disclosed.

[0030] A first gear 112 is provided on one side of the turntable 110 to drive its rotation. The first gear 112 is driven by a first motor 113. The first motor 113 is connected to a fixed external structure, such as a cantilever frame or a wall.

[0031] The working turntable 110 is fixedly connected to an annular rack 111, and the teeth of the annular rack 111 and the first gear 112 mesh with each other.

[0032] During implementation, the power supply to the first motor 113 is turned on. The first motor 113 drives the first gear 112, which is coaxially connected to its output shaft, to rotate. The first gear 112, through the forced meshing force between its teeth and the ring rack 111, drives the working turntable 110 to rotate around the center of the working channel within the mounting bracket 100. This, in turn, drives the conductive wheel 200 and the rotating pressing component 310 to perform binding and welding work around the reinforcing cage.

[0033] Then as Figure 3 and Figure 4 The invention discloses the manufacturing principle of reinforcing cages produced from ribbed steel bars and coiled steel bars through binding and welding: The binding and welding integrated device also includes a pair of spaced positioning molds 120, with a U-shaped fixing frame 121 fixedly connected to the bottom of the two positioning molds 120. The U-shaped fixing frame 121 is slidably connected to the mounting bracket 100 along the axial direction.

[0034] The working turntable 110 has a shaft disk 130 fixedly connected on the same side as the conductive wheel 200. The shaft disk 130 rotates with the working turntable 110 to wind the spiral ribs onto the main ribs.

[0035] A mounting base 124 is fixedly connected to one side of the mounting bracket 100. A linear rack 122 is fixedly connected between the two positioning molds 120 inside the U-shaped fixing frame 121. A second gear 123 is meshed on one side of the linear rack 122. A second motor 125 is provided at the bottom of the second gear 123 to drive its rotation. The body of the second motor 125 is fixedly connected to the mounting base 124. The output shaft of the second motor 125 is coaxially connected to the second gear 123.

[0036] Multiple ribbed steel bars are inserted between positioning molds 120 to form the framework of the main reinforcement. Then, one end of the coiled steel bar wound on the shaft disc 130 is fixed to the main reinforcement. Next, the working turntable 110 drives the shaft disc 130 to rotate, while the main reinforcement only moves axially, that is, it translates horizontally. Thus, the coiled steel bar is wound around the outer periphery of the main reinforcement to form a spiral reinforcement. During this process, the conductive wheel 200 and the rotating pressing component 310 are in close contact with the outer surface of the spiral reinforcement and make a circular motion around the axis. Every time the conductive wheel 200 passes through an intersection of the main reinforcement and the spiral reinforcement, it melts at that point. Immediately afterwards, the rotating pressing component 310 downstream of the conductive wheel 200 applies a radial force to the outer surface of the spiral reinforcement, bonding the main reinforcement and the spiral reinforcement together at the intersection before the molten metal at the intersection cools and solidifies, forming a stable spot weld point.

[0037] Different specifications of utility poles require matching steel cages of different sizes. When binding and welding steel cages of different radii, it is necessary to adjust the distance between the conductive wheel 200 and the rotating pressing component 310 and the processing channel. For a clearer understanding of how these adjustments are made, please refer to [link to relevant documentation]. Figure 5 and Figure 6 .

[0038] A rotating bolt 210 is rotatably connected to the outer periphery of the conductive wheel 200. A synchronization plate 220 and a hydraulic rod 230 are provided on the side of the rotating bolt 210 away from the axis of the processing channel. The synchronization plate 220 is fixedly connected to the working turntable 110. The cylinder of the hydraulic rod 230 is fixedly connected to the synchronization plate 220. The piston end of the hydraulic rod 230 is fixedly connected to the rotating bolt 210, so as to adjust the distance between the conductive wheel 200 and the axis of the processing channel.

[0039] It should be noted that the method for adjusting the distance between the rotating pressing part 310 and the axis of the processing channel is the same as the method for adjusting the conductive wheel 200, and will not be repeated here.

[0040] Under the coordinated control of the PLC, when the conductive wheel 200 arranges the pitch of each reinforcing rib, the spiral ribs are also subjected to axial frictional force applied by the conductive wheel 200. The magnitude of this frictional force is difficult to control; that is, when the conductive wheel 200 arranges and positions the coiled steel, the resulting spiral rib pitch is difficult to fix. Therefore, in this application, the method by which the conductive wheel 200 arranges the spiral rib pitch is improved.

[0041] like Figure 7 and Figure 8 As shown, the conductive wheel 200 has a stepped structure, including a small wheel 201 and a large wheel 202. Along the direction of translation of the steel cage, the small wheel 201 is located upstream of the large wheel 202, forming a positioning wall 203 for pushing the spiral reinforcement to move in the opposite direction to the steel cage.

[0042] Compared to friction, which is easily affected by factors such as the magnitude of normal pressure and the roughness of the contact surface, the pushing force applied by the positioning wall 203 to the spiral ribs arranges the spiral ribs according to their pitch. Since the arc length between two adjacent main ribs is fixed, the time it takes for the small wheel 201 to rotate from one main rib to another while pressing against the outer periphery of the spiral rib is fixed. Therefore, when the positioning wall 203 pushes the spiral ribs to arrange their pitch, a spiral rib with a fixed pitch is obtained, which facilitates the subsequent formation of stable cross-point welding positions.

[0043] During the rotation of the rotating pressing component 310 pressing the spiral rib, when it passes the intersection point where both the main rib and the spiral rib are melted, the axial friction force applied by the rotating pressing component 310 to the spiral rib will prevent the spiral rib from moving synchronously with the main rib.

[0044] In some embodiments, structural improvements to the welding roller include, for example: Figure 7 As shown, the rotating pressing component 310 includes a cylindrical pressing wheel, and multiple grooves 311 are provided on the outer periphery of the cylindrical pressing wheel. The inclination angle of the grooves 311 is equal to the helix angle of the spiral rib.

[0045] Based on the diameter d of the reinforcing cage and the pitch h of the spiral reinforcement, the formula is: Helix angle = The inner wall of groove 311 fits perfectly against the outer wall of the spiral rib, and the depth of groove 311 is within a certain range of the diameter of the spiral rib. to This design ensures that the spiral ribs are stably encased while preventing them from getting stuck when detaching from the groove 311 due to excessive depth. The axial force applied to the spiral ribs by the cylindrical pressing wheel is "guided" by the inclined surface of the groove 311, reducing forced friction.

[0046] Based on the above, it is known that steel cages for utility poles of different specifications need to be produced. Therefore, in another embodiment, the improvement of the welding wheel is described in [reference needed]. Figure 8 .

[0047] The rotating pressing component 310 includes a frustum pressing wheel, which comprises a large-diameter base 312 and a small-diameter base 313. An inclined reset slope 314 is formed between the large-diameter base 312 and the small-diameter base 313. Along the direction of translation of the reinforcing cage, the small-diameter base 313 is located downstream of the large-diameter base 312. This design allows the reset slope 314 to apply force more radially when pressing the spiral reinforcement, reducing the axial component force and thus reducing axial friction.

[0048] When the reset slope 314 on the outer periphery of the frustum welding wheel comes into contact with the spiral rib, it forms an inclined contact line along the conical surface, and its contact area is tens of times that of point contact. After the contact area is increased, the radial pressure of the reset slope 314 on the spiral rib is evenly distributed, the local pressure is reduced, and "hard friction" caused by pressure concentration is avoided.

[0049] The working principle of the automatic binding and welding integrated device will be described in detail below: First, multiple ribbed steel bars are inserted between positioning molds 120 to form the framework of the main reinforcement. Then, one end of the coiled steel bar wound on the shaft disc 130 is fixed to the main reinforcement. Next, the working turntable 110 drives the shaft disc 130 to rotate, while the main reinforcement only undergoes axial translation. Thus, the coiled steel bar is wound around the outer periphery of the main reinforcement to form a spiral reinforcement. During this process, the small wheel disc 201 and the rotating pressing component 310 move in a circular motion close to the outer surface of the spiral reinforcement. Each time the small wheel disc 201 passes through an intersection, it melts at that point. Immediately afterwards, the downstream rotating pressing component 310 applies a radial force to the outer surface of the spiral reinforcement, bonding the main reinforcement and the spiral reinforcement together at the intersection before the molten metal at the intersection cools and solidifies, forming a stable spot weld point.

[0050] When the diameter of the produced steel cage is small, such as <50cm, the axial component of the force applied to the spiral reinforcement by the rotating pressing part 310 is "guided" by the inclined surface of the groove 311, reducing forced friction.

[0051] When the diameter of the produced steel cage is large, such as ≥50cm, the force of the reset slope 314 is more biased towards the radial direction when pressing the spiral reinforcement, reducing the axial component force and thus reducing the axial friction force.

[0052] When the reset slope 314 on the outer periphery of the frustum welding wheel comes into contact with the spiral rib, it forms an inclined contact line along the conical surface, and its contact area is tens of times that of point contact. After the contact area is increased, the radial pressure of the reset slope 314 on the spiral rib is evenly distributed, the local pressure is reduced, and "hard friction" caused by pressure concentration is avoided.

[0053] When the welding roller presses the spiral reinforcement, it reduces the axial friction force applied to the spiral reinforcement through the above two methods, preventing the spiral reinforcement from being hindered from axially translating along with the main reinforcement. This leads to the melting point of the spiral reinforcement sticking to the unmelted main reinforcement, forming a new, unstable intersection.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PLC-controlled integrated automatic binding and welding device for steel reinforcement cages of cement utility poles, comprising a working turntable (110) rotatably connected to an installation bracket (100), wherein a processing channel for the steel reinforcement cage to pass horizontally is formed at the center of the working turntable (110), and a conductive wheel (200) and a pressing assembly (300) are provided on the same side of the working turntable (110), wherein the conductive wheel (200), the pressing assembly (300), and the steel reinforcement cage form a closed conductive circuit, characterized in that: Along the rotation direction of the working turntable (110), the pressing assembly (300) is located downstream of the conductive wheel (200); along the translation direction of the reinforcing cage, the pressing assembly (300) is located downstream of the conductive wheel (200). The pressing assembly (300) includes a rotating pressing member (310), the outer ring of which is closely attached to the periphery of the spiral rib. The rotating pressing member (310) wraps around the spiral rib, converting part of the axial friction force it receives into radial pressure. Alternatively, the outer wall of the rotating pressing member (310) contacts the spiral rib through a line to disperse the local radial pressure on it, so as to prevent the intersection of the spiral rib and the main rib from shifting.

2. The PLC-controlled integrated automatic binding and welding device for steel cages of cement utility poles according to claim 1, characterized in that: The working turntable (110) is provided with a first gear (112) on one side to drive its rotation. The first gear (112) is driven by a first motor (113).

3. The PLC-controlled integrated automatic binding and welding device for steel cages of cement utility poles according to claim 2, characterized in that: The working turntable (110) is fixedly connected to an annular rack (111), and the teeth of the annular rack (111) and the first gear (112) mesh with each other.

4. The PLC-controlled integrated automatic binding and welding device for steel cages of cement utility poles according to claim 1, characterized in that: It also includes a pair of spaced positioning molds (120), the bottom of which is fixedly connected to a U-shaped fixing frame (121), which is slidably connected to the mounting bracket (100) along the axial direction.

5. The integrated automatic binding and welding device for steel cages of cement utility poles based on PLC control according to claim 1, characterized in that: The working turntable (110) has a shaft disk (130) fixedly connected on the same side as the conductive wheel (200). The shaft disk (130) rotates with the working turntable (110) to wind the spiral ribs onto the main ribs.

6. The PLC-controlled integrated automatic binding and welding device for steel cages of cement utility poles according to claim 4, characterized in that: A mounting base (124) is fixedly connected to one side of the mounting bracket (100). A linear rack (122) is fixedly connected between the two positioning molds (120) inside the U-shaped fixing frame (121). A second gear (123) meshes with one side of the linear rack (122). A second motor (125) is provided at the bottom of the second gear (123) to drive its rotation. The body of the second motor (125) is fixedly connected to the mounting base (124). The output shaft of the second motor (125) is coaxially connected to the second gear (123).

7. The PLC-controlled integrated automatic binding and welding device for steel cages of cement utility poles according to claim 1, characterized in that: The conductive wheel (200) is rotatably connected to a rotating bolt (210). On the side of the rotating bolt (210) away from the axis of the processing channel, there is a synchronous plate (220) and a hydraulic rod (230). The synchronous plate (220) is fixedly connected to the working turntable (110). The cylinder of the hydraulic rod (230) is fixedly connected to the synchronous plate (220). The piston end of the hydraulic rod (230) is fixedly connected to the rotating bolt (210) to adjust the distance between the conductive wheel (200) and the axis of the processing channel.

8. The PLC-controlled integrated automatic binding and welding device for steel cages of cement utility poles according to claim 1, characterized in that: The conductive wheel (200) has a stepped structure, including a small wheel (201) and a large wheel (202). Along the direction of translation of the steel cage, the small wheel (201) is located upstream of the large wheel (202), forming a positioning wall (203) for pushing the spiral reinforcement to move in the opposite direction to the steel cage.

9. The PLC-controlled integrated automatic binding and welding device for steel cages of cement utility poles according to claim 1, characterized in that: The rotating pressing component (310) includes a cylindrical pressing wheel, and the cylindrical pressing wheel has multiple grooves (311) on its outer periphery. The inclination angle of the grooves (311) is equal to the helix angle of the spiral rib.

10. The PLC-controlled integrated automatic binding and welding device for steel cages of cement utility poles according to claim 1, characterized in that: The rotating pressing component (310) includes a frustum pressing wheel, which includes a large diameter bottom (312) and a small diameter bottom (313). An inclined reset slope (314) is formed between the large diameter bottom (312) and the small diameter bottom (313). Along the direction of translation of the steel cage, the small diameter bottom (313) is located downstream of the large diameter bottom (312).

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