Stranding equipment for welding wire production

Abstract

The invention discloses stranding equipment for welding wire production, and belongs to the technical field of welding wire production devices. Comprising a base, a wire stranding wheel is installed on the base, a plurality of welding wire winding drums are installed on one side of the base, welding wires are wound on the welding wire winding drums, a fixing plate and a guide plate are arranged between the welding wire winding drums and the wire stranding wheel, and the welding wires sequentially penetrate through the fixing plate, a fixing box and the guide plate from left to right through through holes; a tensioning assembly for providing tensioning force for the welding wire is arranged in the fixing box and comprises a sliding frame, a tensioning assembly and a tensioning assembly, the outer side part of the contact belt is in contact with the surface of the welding wire; the friction wheel is arranged on the base. The stranding equipment for welding wire production has the beneficial effects that the sliding frame and the contact belt are arranged, the contact belt and a welding wire are tensioned, the contact strength between the friction block and the friction wheel is adjusted, and the tensioning force of the welding wire is convenient to adjust.

Description

Technical Field

[0001] This application relates to the field of welding wire production equipment technology, and more specifically, to a stranding device for welding wire production. Background Technology

[0002] Wire stranding devices are used to produce cable-like welding wires made by stranding multiple welding wires together. These wires are typically used in applications requiring higher strength, better conductivity, or specific welding processes. Compared to single-strand welding wires, they offer better flexibility, more uniform current distribution, and higher welding efficiency. During production, a central welding wire is usually used as the core, with multiple spiral welding wires evenly distributed around it for stranding. In existing stranding devices, the welding wire is usually tightened during the stranding process to prevent loosening. For example, patent document CN119426849B discloses an anti-breakage stranding device for welding wire production. In this design, friction blocks are used to clamp the welding wire, and the friction between the friction blocks and the welding wire is used to tighten it. However, during the stranding process, relative movement occurs between the friction blocks and the welding wire, which may cause damage to the surface of the welding wire, affecting the final processing quality.

[0003] Therefore, a stranding device for welding wire production is needed to solve the above problems. Summary of the Invention

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] To address the technical problems mentioned in the background section, some embodiments of this application provide a stranding device for welding wire production, comprising: a base, a stranding wheel mounted on the base, multiple welding wire drums mounted on one side of the base, the welding wire drums being located to the left of the stranding wheel, welding wire wound on the welding wire drums, a fixing plate and a guide plate disposed between the welding wire drums and the stranding wheel, and a fixing box, the same number as the number of welding wire drums, disposed between the fixing plate and the guide plate, with through holes, the same number as the number of welding wire drums, and the fixing box also having through holes, through which the welding wire passes sequentially from left to right through the through holes to the fixing plate, the fixing box, and the guide plate; a tensioning device is disposed inside the fixing box to provide tension to the welding wire. The tensioning assembly includes: two sets of sliding frames, each slidably mounted within a fixed box, with the two sliding frames arranged opposite each other on both sides of the welding wire; a first roller and a second roller, both rotatably mounted on the sliding frames, with a contact strip between them, the contact strip being fitted onto the first and second rollers and moving with their rotation, the outer portion of the contact strip contacting the surface of the welding wire; a friction wheel, fixedly mounted at the lower end of the first roller; an electric telescopic rod, fixedly mounted on the lower side of the sliding frames, with a movable block fixed to its movable end; and a friction block, located on one side of the friction wheel, with a pressure spring connecting the friction block and the electric telescopic rod.

[0006] Furthermore, the tensioning assembly also includes: two sets of piston cylinders, which are fixedly mounted on the front and rear side walls of the fixed box respectively; a piston rod, one end of which is slidably mounted inside the piston cylinder, and the other end of which is fixedly connected to the sliding frame; and a piston spring, both ends of which are fixedly connected to the piston rod and the inner wall of the piston cylinder respectively.

[0007] Furthermore, the fixed box is also equipped with an anti-loosening component, which includes: a guide wheel, which is rotatably disposed inside the fixed box; a mating wheel, which is installed inside the fixed box and symmetrically disposed with the guide wheel, the guide wheel and the mating wheel mating together to clamp the welding wire, and both the guide wheel and the mating wheel are located on the left side of the sliding frame; an oil reservoir, which is fixedly disposed at the lower end of the fixed box; and a first gear pump, which is fixedly disposed on the lower side of the fixed box.

[0008] Furthermore, a power shaft is fixed to one end of the guide wheel, and the power shaft is poweredly connected to the first gear pump. A pipe is connected between the oil inlet end of the first gear pump and the oil storage tank. An oil delivery pipe is connected to the oil outlet end of the first gear pump. A connecting pipe is connected to the oil delivery pipe, and the connecting pipe is connected to the two piston cylinders. A one-way valve is installed between the oil delivery pipe and the connecting pipe, so that the oil flows unidirectionally from the oil delivery pipe to the connecting pipe.

[0009] Furthermore, the anti-loosening component also includes: a second gear pump, fixedly installed at the lower end of a sliding frame, one end of the second roller on the sliding frame being poweredly connected to the second gear pump, the oil inlet of the second gear pump being connected to the oil delivery pipe via a return oil hose, and the oil outlet of the second gear pump being connected to the oil storage tank via a hose; a connecting pipe, the two ends of which are respectively connected to the connecting pipe and the oil storage tank, and a control valve is installed on the connecting pipe.

[0010] Furthermore, each of the two shaft ends of the mating wheel is rotatably equipped with a sliding block, which is slidably disposed within the fixed box. A compression spring is connected between the sliding block and the fixed box, with both ends of the compression spring fixedly disposed on the sliding block and the fixed box respectively. The distance between the mating wheel and the guide wheel is adjusted by sliding the sliding block.

[0011] Furthermore, a notch is provided at the lower end of the fixed box, and a lifting plate is hinged at the notch. A hinge shaft is fixedly installed on the lifting plate. The hinge shaft is rotatably mounted on the fixed box and connected to the fixed box by a torsion spring. A limit hole is provided on the side wall of the hinge shaft. An oil tank is fixedly connected to the lower end of the fixed box. A limit piston with one end extending out of the oil tank is slidably installed inside the oil tank. One end of the limit piston is inserted into the limit hole. A return spring is connected between the limit piston and the oil tank. The two ends of the return spring are respectively fixed to the limit piston and the inner wall of the oil tank. An oil suction pipe is connected between the oil tank and the return hose.

[0012] The beneficial effects of this application are as follows: 1. The welding wire is hinged through the sliding frame and contact belt, moving within the fixed box and driving the contact belt to rotate synchronously with the first and second rollers. When the electric telescopic rod moves the movable block, it causes the friction block to abut against the side of the friction wheel, generating friction and thus tightening the welding wire. To adjust the tension, the extension of the electric telescopic rod is adjusted, which in turn adjusts the compression of the pressure spring, thereby adjusting the contact force between the friction block and the friction wheel. Greater friction results in greater tension, facilitating easy adjustment of the welding wire tension.

[0013] 2. Through the guide wheel and mating wheel, when the contact strip is worn or the two sliding frames are too far apart, causing the contact strip to slip against the power shaft or the contact force to be weak and resulting in sliding friction with the welding wire, the movement of the welding wire will drive the guide wheel and mating wheel to rotate. In turn, the guide wheel will drive the power shaft to rotate. Under the action of the first gear pump, the hydraulic oil in the oil reservoir will enter the two piston cylinders through the oil supply pipe and connecting pipe, which will push the piston rod to move the two sliding frames towards each other, reducing the distance between the two sliding frames, so that the contact strip is tightly attached to the welding wire, generating sufficient tension on the welding wire, and avoiding relative slippage that would damage the surface of the welding wire.

[0014] 3. With the lifting plate in place, after the break point passes the guide wheel and mating wheel, it stops driving the guide wheel and mating wheel to rotate. At this point, the broken part of the welding wire has not yet reached the two contact bands, causing the welding wire to continue moving and driving the contact bands. Since the first gear pump no longer transports hydraulic oil, the second gear pump can no longer draw hydraulic oil through the return hose. Under pressure, this hinders the rotation of the second roller, causing the first roller and contact bands to stop moving. Because the contact bands clamp the welding wire, they hold the broken end of the welding wire, preventing sudden tension relaxation and affecting the stranding effect. After the broken part of the welding wire passes the guide wheel and mating wheel, the contact bands continue to move, driving the second roller to rotate. This causes the second gear pump to draw hydraulic oil from the return hose and extract it from the oil tank through the extraction pipe. This compresses the return spring and causes one end of the limit piston to disengage from the limit hole. At this point, the torsion spring causes one end of the lifting plate to lift around the hinge shaft, lifting the broken part of the welding wire for subsequent connection and repair. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0016] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0017] In the attached diagram: Figure 1 This is an overall schematic diagram according to one embodiment of the present application; Figure 2 yes Figure 1 A schematic diagram of the fixing box in the embodiment; Figure 3 yes Figure 1 The embodiment is shown in the installation diagram of the sliding frame; Figure 4 yes Figure 1 The installation diagram of the piston cylinder in the embodiment is shown below; Figure 5 yes Figure 1 The embodiment is shown in the schematic diagram of the installation of the friction wheel; Figure 6 yes Figure 1 A schematic diagram of the installation of the second gear pump in the embodiment; Figure 7 yes Figure 1 A schematic diagram of the guide wheel in the embodiment; Figure 8 yes Figure 1 The embodiment is shown in the schematic diagram of the contact strip installation. Figure 9 yes Figure 1 The embodiment is shown in the schematic diagram of the installation of the mating wheel; Figure 10 yes Figure 1 A partial structural diagram of the oil piston cylinder in the embodiment.

[0018] Figure label: 10. Base; 11. Welding wire spool; 12. Fixing plate; 13. Guide plate; 14. Stranded wire wheel; 15. Fixing box; 16. Welding wire; 17. Guide wheel; 18. Matching wheel; 19. Oil reservoir; 20. First gear pump; 21. Connecting pipe; 22. First roller; 23. Second roller; 24. Contact belt; 25. Support wheel; 26. Drive shaft; 27. Second gear pump; 28. Piston cylinder; 29. ​​Piston rod; 30. One-way valve 31. Oil supply pipe; 32. Oil return hose; 33. Control valve; 34. Sliding block; 35. Compression spring; 36. Connecting pipe; 37. Friction wheel; 38. Friction block; 39. Electric telescopic rod; 40. Movable block; 41. Pressure spring; 42. Piston spring; 43. Sliding frame; 44. Lifting plate; 45. Hinge shaft; 46. Oil piston cylinder; 47. Oil suction pipe; 48. Return spring; 49. Limiting piston; 50. Limiting hole. Detailed Implementation

[0019] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0020] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0021] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0022] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0023] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] like Figures 1-10 As shown, a stranding device for welding wire production includes: a base 10, welding wire drums 11, a fixing plate 12, a guide plate 13, a stranding wheel 14, and a fixing box 15. Multiple welding wire drums 11 are mounted on the base 10, and welding wire 16 is wound on each of the drums 11. A stranding wheel 14 is also located on the right side of the welding wire drums 11 on the base 10. The fixing plate 12 and the guide plate 13 are fixedly mounted on the base 10. A fixing box 15, the same number as the welding wire drums 11, is located between the fixing plate 12 and the guide plate 13. Both the fixing plate 12 and the guide plate 13 have through holes, the same number as the welding wire drums 11. The fixing box 15 also has through holes. The welding wire 16 passes through the through holes from left to right, sequentially through the fixing plate 12, the fixing box 15, and the guide plate 13, and converges at the stranding wheel 14 for stranding. A tensioning assembly that provides tension to the welding wire is provided inside the fixing box 15. The tensioning assembly includes two sliding frames 43 slidably disposed within the fixing box 15, with the two sliding frames 43 distributed front to back and located on both sides of the welding wire 16 passing through the fixing box 15. A first roller 22 and a second roller 23, distributed left to right, are rotatably mounted on the sliding frames 43. A contact band 24 is provided between the first roller 22 and the second roller 23, and the contact band 24 is sleeved on the first roller 22 and the second roller 23 and moves with the rotation of the first roller 22 and the second roller 23. The outer portions of the two contact bands 24 that are close to each other are in contact with the surface of the welding wire 16, so that when the welding wire 16 is twisted, the welding wire 16 drives the contact band 24 to move and drives the first roller 22 and the second roller 23 to rotate. A plurality of support wheels 25 are also provided between the first roller 22 and the second roller 23, which are rotatably mounted on the sliding frames 43. The support wheels 25 support the contact band 24, so that the contact band 24 is in contact with the surface of the welding wire 16. An electric telescopic rod 39 is fixedly installed on the lower side of the sliding frame 43. The movable end of the electric telescopic rod 39 has a movable block 40. A friction block 38 is slidably installed on the movable block 40. A pressure spring 41 is connected between the friction block 38 and the movable block 40. A friction wheel 37 is fixedly connected to the lower end of the first roller 22 through the sliding frame 43. The friction block 38 contacts the side wall of the friction wheel 37, so that friction is generated between the friction wheel 37 and the friction block 38.

[0025] In use, the welding wire 16 is hinged and moves within the fixed box 15, thereby driving the contact belt 24 to move, causing the first roller 22 and the second roller 23 to rotate synchronously. When the electric telescopic rod 39 moves the movable block 40, the friction block 38 comes into contact with the side of the friction wheel 37, generating friction on the friction wheel 37, thereby tightening the welding wire 16. When the tension needs to be adjusted, the extension of the electric telescopic rod 39 is adjusted, thereby adjusting the compression of the pressure spring 41, and thus adjusting the contact force between the friction block 38 and the friction wheel 37. The greater the friction force, the greater the tension.

[0026] In an implementation force, refer to Figures 5-10 To ensure that the contact strip 24 and the welding wire 16 are in close contact and that the welding wire 16 moves the contact strip 24, two sets of piston cylinders 28 are provided on the fixed box 15. The two sets of piston cylinders 28 are fixedly mounted on the front and rear side walls of the fixed box 15, respectively. A piston rod 29 with one end protruding is slidably mounted inside the piston cylinder 28, and the protruding end of the piston rod 29 is fixedly connected to the sliding frame 43. A piston spring 42 is provided inside the piston cylinder 28, and both ends of the piston spring 42 are fixedly connected to the piston rod 29 and the inner wall of the piston cylinder 28, respectively. A guide wheel 17 and a mating wheel 18 are rotatably mounted inside the fixed box 15, both located to the left of the two piston springs 42. When the welding wire 16 passes through the fixed box 15, it first passes between the guide wheel 17 and the mating wheel 18, and then between the two sliding frames 43. Sliding blocks 34 are rotatably mounted at both ends of the mating wheel 18 and slide within the fixed box 15. A compression spring 35 connects the sliding block 34 to the fixed box 15, causing the guide wheel 17 and the mating wheel 18 to engage and clamp the welding wire 16 on both sides. When the welding wire 16 moves, it drives the guide wheel 17 and the mating wheel 18 to rotate. An oil reservoir 19 is fixedly connected to the lower end of the fixed box 15, storing hydraulic oil. A first gear pump 20 is also fixedly mounted at the lower end of the fixed box 15. The first gear pump 20 can refer to existing gear pump structures. A power shaft 26 is coaxially fixed to the lower end of the guide wheel 17, and the power shaft 26 is poweredly connected to the first gear pump 20. A pipe connects the oil inlet of the first gear pump 20 to the oil reservoir 19, and an oil delivery pipe 31 connects to the oil outlet of the first gear pump 20. The oil delivery pipe 31 is connected to a connecting pipe 21, which communicates with the two piston cylinders 28. A one-way valve 30 is installed between the oil delivery pipe 31 and the connecting pipe 21, allowing oil to flow unidirectionally from the oil delivery pipe 31 to the connecting pipe 21. The guide wheel 17 and the mating wheel 18 can be made of rubber.

[0027] In one embodiment, when the contact strip 24 is worn or the two sliding frames 43 are far apart, causing the contact strip 24 to be in contact with the power shaft 26 or the contact force is weak and slides against the welding wire 16, the movement of the welding wire 16 will drive the guide wheel 17 and the mating wheel 18 to rotate, which in turn causes the guide wheel 17 to drive the power shaft 26 to rotate. Under the action of the first gear pump 20, the hydraulic oil in the oil reservoir 19 enters the two piston cylinders 28 through the oil supply pipe 31 and the connecting pipe 21, which in turn pushes the piston rod 29 to move, causing the two sliding frames 43 to move towards each other, reducing the distance between the two sliding frames 43, so that the contact strip 24 is tightly attached to the welding wire 16, generating sufficient tension on the welding wire 16, and avoiding relative slippage that would cause damage to the surface of the welding wire 16.

[0028] In one embodiment, a second gear pump 27 is fixedly connected to the lower end of a sliding frame 43. The second gear pump 27 is consistent with the connecting pipe 21, and also refers to existing gear pumps. One end of the second roller 23 is poweredly connected to the second gear pump 27. The rotation of the second roller 23 drives the second gear pump 27. When the contact belt 24 is in contact with the welding wire 16 and moves with the welding wire 16, it will drive the second roller 23 and the first roller 22 to rotate. The oil inlet end of the second gear pump 27 is connected to the oil supply pipe 31 through the return oil hose 32, and the oil outlet end of the second gear pump 27 is connected to the oil storage tank 19 through the hose. When the contact belt 24 moves synchronously with the power shaft 26 to drive the second roller 23 to rotate, the hydraulic oil input from the oil supply pipe 31 is recirculated back into the oil storage tank 19 through the return oil hose 32 and the second gear pump 27. At this time, the hydraulic oil no longer enters the connecting pipe 21, so that the distance between the two sliding frames 43 no longer changes.

[0029] When welding wire 16 breaks, currently in the production process of cable welding wire, if the welding wire breaks, the operator can quickly shut down the production device using the emergency stop button. However, at the moment of breakage, the tension of the welding wire changes, affecting the tightness of the stranded cable welding wire near the breakage point, thus impacting the overall strength and stability of the welding wire. In this invention, the breakage point of welding wire 16 passes through guide wheel 17 and mating wheel 18, and then between two sliding frames 43. This ensures that when the broken section passes through the guide wheel 17 and the mating wheel 18, it no longer drives the guide wheel 17 and the mating wheel 18 to rotate. At this time, the broken section of the welding wire 16 has not yet reached the two contact bands 24, so the movement of the welding wire 16 will continue to drive the movement of the contact band 24. At this time, since the first gear pump 20 no longer transports hydraulic oil, the second gear pump 27 can no longer draw in hydraulic oil through the return hose 32. Under the action of pressure, it will hinder the rotation of the second roller 23, so that the first roller 22 and the contact band 24 stop moving. Since the contact band 24 clamps the welding wire 16, the broken end of the welding wire 16 is clamped by the contact band 24 to prevent the broken welding wire 16 from suddenly becoming loose and affecting the stranding effect.

[0030] To facilitate subsequent reconnection of the broken welding wire 16, in one embodiment, a notch is provided at the lower end of the fixing box 15, and a lifting plate 44 is hinged at the notch. A hinge shaft 45 is fixedly mounted on the lifting plate 44, and a torsion spring is rotatably mounted on the fixing box 15 and connected to the fixing box 15. When the lifting plate 44 is flush with the lower end surface of the fixing box 15, the torsion spring is in a deformed state. Under the action of the torsion spring, the lifting plate 44 rotates around the hinge shaft 45, causing one end to lift up and raise the broken part of the welding wire 16. A limiting hole 50 is provided on the side wall of the hinge shaft 45. An oil tank 46 is fixedly connected to the lower end of the fixed box 15. A limiting piston 49 with one end extending out of the oil tank 46 is slidably disposed inside the oil tank 46. One end of the limiting piston 49 is inserted into the limiting hole 50. A return spring 48 is connected between the limiting piston 49 and the oil tank 46. The two ends of the return spring 48 are respectively fixed to the limiting piston 49 and the inner wall of the oil tank 46. An oil suction pipe 47 is connected between the oil tank 46 and the return hose 32. The oil tank 46 also contains hydraulic oil. When the return spring 48 is in the relaxed state, one end of the limiting piston 49 is embedded in the limiting hole 50. After the broken section of welding wire 16 passes through guide wheel 17 and mating wheel 18, contact belt 24 continues to move, thereby driving second roller 23 to rotate. This causes second gear pump 27 to draw hydraulic oil from return hose 32 and extract hydraulic oil from oil tank 46 through oil extraction pipe 47. This compresses return spring 48 and causes one end of limit piston 49 to disengage from limit hole 50. At this time, under the action of torsion spring, one end of lifting plate 44 tilts up around hinge shaft 45, lifting the broken section of welding wire 16 to facilitate subsequent connection and repair. When resuming use, simply press down lifting plate 44 and rotate guide wheel 17 to allow hydraulic oil to re-enter oil tank 46 through oil supply pipe 31 and return hose 32. This allows limit piston 49 to re-embed into limit hole 50, limiting lifting plate 44.

[0031] Work or installation process: In use, the welding wire 16 is hinged and moves within the fixed box 15, thereby driving the contact belt 24 to move, causing the first roller 22 and the second roller 23 to rotate synchronously. When the electric telescopic rod 39 moves the movable block 40, the friction block 38 comes into contact with the side of the friction wheel 37, generating friction on the friction wheel 37, thereby tightening the welding wire 16. When the tension needs to be adjusted, the extension of the electric telescopic rod 39 is adjusted, thereby adjusting the compression of the pressure spring 41, and thus adjusting the contact force between the friction block 38 and the friction wheel 37. The greater the friction force, the greater the tension.

[0032] When the contact strip 24 wears or the two sliding frames 43 are too far apart, causing the contact strip 24 to slip against the welding wire 16 due to insufficient contact force with the power shaft 26, the movement of the welding wire 16 will drive the guide wheel 17 and the mating wheel 18 to rotate. This will cause the guide wheel 17 to drive the power shaft 26 to rotate. Under the action of the first gear pump 20, the hydraulic oil in the oil reservoir 19 will enter the two piston cylinders 28 through the oil supply pipe 31 and the connecting pipe 21. This will push the piston rod 29 to move, causing the two sliding frames 43 to move towards each other, reducing the distance between the two sliding frames 43. This will allow the contact strip 24 to stick tightly to the welding wire 16, generating sufficient tension on the welding wire 16 and preventing relative slippage that could damage the surface of the welding wire 16.

[0033] When welding wire 16 breaks, currently in the production process of cable welding wire, if the welding wire breaks, the operator can quickly shut down the production device using the emergency stop button. However, at the moment of breakage, the tension of the welding wire changes, affecting the tightness of the stranded cable welding wire near the breakage point, thus impacting the overall strength and stability of the welding wire. In this invention, the breakage point of welding wire 16 passes through guide wheel 17 and mating wheel 18, and then between two sliding frames 43. This ensures that when the broken section passes through the guide wheel 17 and the mating wheel 18, it no longer drives the guide wheel 17 and the mating wheel 18 to rotate. At this time, the broken section of the welding wire 16 has not yet reached the two contact bands 24, so the movement of the welding wire 16 will continue to drive the movement of the contact band 24. At this time, since the first gear pump 20 no longer transports hydraulic oil, the second gear pump 27 can no longer draw in hydraulic oil through the return hose 32. Under the action of pressure, it will hinder the rotation of the second roller 23, so that the first roller 22 and the contact band 24 stop moving. Since the contact band 24 clamps the welding wire 16, the broken end of the welding wire 16 is clamped by the contact band 24 to prevent the broken welding wire 16 from suddenly becoming loose and affecting the stranding effect.

[0034] After the broken section of welding wire 16 passes through guide wheel 17 and mating wheel 18, contact belt 24 continues to move, thereby driving second roller 23 to rotate. This causes second gear pump 27 to draw hydraulic oil from return hose 32 and extract hydraulic oil from oil tank 46 through oil extraction pipe 47. This compresses return spring 48 and causes one end of limit piston 49 to disengage from limit hole 50. At this time, under the action of torsion spring, one end of lifting plate 44 tilts up around hinge shaft 45, lifting the broken section of welding wire 16 for easy subsequent connection and repair. When resuming use, simply press down lifting plate 44 and rotate guide wheel 17 to allow hydraulic oil to re-enter oil tank 46 through oil supply pipe 31 and return hose 32. This allows limit piston 49 to re-embed into limit hole 50, limiting lifting plate 44.

[0035] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A stranding device for producing welding wire, characterized in that: include: A base (10) is provided with a stranding wheel (14) and multiple welding wire drums (11) are provided on one side of the base (10). The welding wire drums (11) are located to the left of the stranding wheel (14) and welding wire (16) is wound on the welding wire drums (11). A fixing plate (12) and a guide plate (13) are provided between the welding wire drums (11) and the stranding wheel (14). A fixing box (15) with the same number of welding wire drums (11) is provided between the fixing plate (12) and the guide plate (13). A through hole with the same number of welding wire drums (11) is provided on both the fixing plate (12) and the guide plate (13). A through hole is also provided on the fixing box (15). The welding wire (16) passes through the fixing plate (12), the fixing box (15) and the guide plate (13) from left to right through the through hole. The fixing box (15) is provided with a tensioning component that provides tension to the welding wire. The tensioning component includes: Two sets of sliding frames (43) are provided, both of which are slidably installed in the fixed box (15), and the two sliding frames (43) are arranged opposite to each other; The first roller (22) and the second roller (23) are rotatably mounted on the sliding frame (43). A contact strip (24) is provided between the first roller (22) and the second roller (23). The contact strip (24) is sleeved on the first roller (22) and the second roller (23) and moves with the rotation of the first roller (22) and the second roller (23). The outer part of the contact strip (24) contacts the surface of the welding wire (16). The friction wheel (37) is fixedly installed at the lower end of the first roller (22); An electric telescopic rod (39) is fixedly installed on the lower side of the sliding frame (43), and a movable block (40) is fixed at the movable end of the electric telescopic rod (39). A friction block (38) is set on one side of the friction wheel (37), and a pressure spring (41) is provided between the friction block (38) and the electric telescopic rod (39).

2. The stranding equipment for welding wire production according to claim 1, characterized in that: The tensioning assembly also includes: Two sets of piston cylinders (28) are provided, and the two sets of piston cylinders (28) are respectively fixed on the front and rear side walls of the fixed box (15); The piston rod (29) is slidably disposed inside the piston cylinder (28) at one end, and the piston rod (29) is fixedly connected to the sliding frame (43) at the other end. The piston spring (42) is fixedly connected at both ends to the piston rod (29) and the inner wall of the piston cylinder (28).

3. The stranding equipment for welding wire production according to claim 2, characterized in that: The fixing box (15) is also provided with an anti-loosening component, which includes: The guide wheel (17) is rotatably mounted inside the fixed box (15); The mating wheel (18) is installed in the fixed box (15) and is symmetrically arranged with the guide wheel (17). The guide wheel (17) and the mating wheel (18) cooperate to clamp the welding wire (16). The guide wheel (17) and the mating wheel (18) are both located on the left side of the sliding frame (43). The oil storage shell (19) is fixedly installed at the lower end of the fixed box (15); The first gear pump (20) is fixedly installed on the lower side of the fixed box (15).

4. The stranding equipment for welding wire production according to claim 3, characterized in that: One end of the guide wheel (17) is fixed with a power shaft (26), which is connected to the first gear pump (20). The oil inlet of the first gear pump (20) is connected to the oil storage tank (19) by a pipe. The oil outlet of the first gear pump (20) is connected to an oil delivery pipe (31). The oil delivery pipe (31) is connected to a connecting pipe (21). The connecting pipe (21) is connected to two piston cylinders (28). A one-way valve (30) is provided between the oil delivery pipe (31) and the connecting pipe (21) so that the oil flows from the oil delivery pipe (31) to the connecting pipe (21) in one direction.

5. The stranding equipment for welding wire production according to claim 4, characterized in that: The anti-loosening component also includes: The second gear pump (27) is fixedly installed at the lower end of a sliding frame (43). One end of the second roller (23) on the sliding frame (43) is connected to the second gear pump (27) by power. The oil inlet of the second gear pump (27) is connected to the oil delivery pipe (31) through the return oil hose (32). The oil outlet of the second gear pump (27) is connected to the oil storage tank (19) through the hose. The connecting pipe (36) is connected to the connecting pipe (21) and the oil storage tank (19) at both ends, and a control valve (33) is installed on the connecting pipe (36).

6. The stranding equipment for welding wire production according to claim 5, characterized in that: Both ends of the mating wheel (18) are rotatably provided with sliding blocks (34), which are slidably disposed in the fixed box (15). A compression spring (35) is connected between the sliding block (34) and the fixed box (15). The two ends of the compression spring (35) are respectively fixed on the sliding block (34) and the fixed box (15). The distance between the mating wheel (18) and the guide wheel (17) is adjusted by sliding the sliding block (34).

7. The stranding equipment for welding wire production according to claim 1, characterized in that: A notch is provided at the lower end of the fixed box (15), and a lifting plate (44) is hinged at the notch. A hinge shaft (45) is fixedly provided on the lifting plate (44). The hinge shaft (45) is rotatably provided on the fixed box (15) and a torsion spring is provided between the fixed box (15). A limit hole (50) is provided on the side wall of the hinge shaft (45). An oil tank (46) is fixedly connected at the lower end of the fixed box (15). A limit piston (49) with one end extending out of the oil tank (46) is slidably provided inside the oil tank (46). One end of the limit piston (49) is inserted into the limit hole (50). A return spring (48) is provided between the limit piston (49) and the oil tank (46). The two ends of the return spring (48) are respectively fixed on the limit piston (49) and the inner wall of the oil tank (46). An oil suction pipe (47) is provided between the oil tank (46) and the return oil hose (32).

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